U.S. patent application number 17/441865 was filed with the patent office on 2022-06-23 for fuel oil composition.
This patent application is currently assigned to ADEKA CORPORATION. The applicant listed for this patent is ADEKA CORPORATION. Invention is credited to Ryou HANAMURA, Eiji KATSUNO, Keiichi ODAGIRI, Taro SUMI.
Application Number | 20220195321 17/441865 |
Document ID | / |
Family ID | |
Filed Date | 2022-06-23 |
United States Patent
Application |
20220195321 |
Kind Code |
A1 |
ODAGIRI; Keiichi ; et
al. |
June 23, 2022 |
FUEL OIL COMPOSITION
Abstract
The present invention provides a fuel oil composition,
including: a fuel oil base oil having a sulfur element content of
from 0.01 mass % to 0.50 mass %; and a calcium salicylate having a
total base number of from 100 mgKOH/g to 1,200 mgKOH/g.
Inventors: |
ODAGIRI; Keiichi; (Tokyo,
JP) ; SUMI; Taro; (Tokyo, JP) ; KATSUNO;
Eiji; (Tokyo, JP) ; HANAMURA; Ryou; (Tokyo,
JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
ADEKA CORPORATION |
Tokyo |
|
JP |
|
|
Assignee: |
ADEKA CORPORATION
Tokyo
JP
|
Appl. No.: |
17/441865 |
Filed: |
March 23, 2020 |
PCT Filed: |
March 23, 2020 |
PCT NO: |
PCT/JP2020/012671 |
371 Date: |
September 22, 2021 |
International
Class: |
C10L 1/189 20060101
C10L001/189; C10L 1/19 20060101 C10L001/19 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 28, 2019 |
JP |
2019-062124 |
Claims
1. A fuel oil composition, comprising: a fuel oil base oil having a
sulfur element content of from 0.01 mass % to 0.50 mass %; and a
calcium salicylate having a total base number of from 100 mgKOH/g
to 1,200 mgKOH/g.
2. The fuel oil composition according to claim 1, wherein a content
of the calcium salicylate is from 1 ppm by mass to 2,000 ppm by
mass with respect to a total amount of the fuel oil composition in
terms of calcium element content.
3. The fuel oil composition according to claim 1, wherein the
calcium salicylate contains a calcium salt of an alkylsalicylic
acid represented by the following general formula (1) or general
formula (2): ##STR00002## where R.sup.1 represents a hydrocarbon
group having 4 to 32 carbon atoms, and R.sup.2 represents a
hydrocarbon group having 4 to 32 carbon atoms.
4. The fuel oil composition according to claim 1, wherein a ratio
between the sulfur element content in the fuel oil base oil and a
calcium element content derived from the calcium salicylate is from
1,000:1 to 0.5:1 in terms of mass ratio.
5. The fuel oil composition according to claim 1, wherein the fuel
oil base oil has a kinematic viscosity at 40.degree. C. of from 1
mm.sup.2/s to 600 mm.sup.2/s.
6. The fuel oil composition according to claim 1, further
comprising a sorbitan ester.
7. The fuel oil composition according to claim 1, wherein the fuel
oil composition is a fuel oil composition for a ship.
8. A method of suppressing deposition of sludge in a fuel oil
composition, comprising blending a fuel oil base oil having a
sulfur element content of from 0.01 mass % to 0.50 mass % with a
calcium salicylate having a total base number of from 100 mgKOH/g
to 1,200 mgKOH/g.
9. The method according to claim 8, wherein the fuel oil
composition is a fuel oil composition for a ship.
10. A use of a calcium salicylate having a total base number of
from 100 mgKOH/g to 1,200 mgKOH/g for suppressing deposition of
sludge in a fuel oil composition comprising a fuel oil base oil
having a sulfur element content of from 0.01 mass % to 0.50 mass
%.
11. The use according to claim 10, wherein the fuel oil composition
is a fuel oil composition for a ship.
Description
TECHNICAL FIELD
[0001] The present invention relates to a fuel oil composition that
is suppressed from causing deposition of sludge at the time of its
storage or at the time of its use.
BACKGROUND ART
[0002] Various kinds of detergents and sludge dispersants have been
developed for preventing the occurrence of a precipitate or a
deposit in a fuel oil to be used in, for example, an internal
combustion engine, a ship, an aircraft, or an external combustion
engine at the time of its storage or at the time of its use (see,
for example, Patent Literatures 1 to 3). In recent years, however,
to suppress the occurrence of an environmental pollutant, such as a
sulfur oxide, in the fuel oil at the time of its combustion,
regulations for reducing a sulfur content in the fuel oil have been
spreading. From 2020, regulations on, for example, a fuel oil for a
ship are expected to be strengthened so that the sulfur content of
the fuel oil may be 0.5% or less. Accordingly, the design and
development of a fuel oil having composition corresponding to such
regulations have become urgent issues. A reduction in sulfur
content of a fuel oil base oil is effective in reducing the sulfur
content in the fuel oil. However, such change in composition of the
base oil has a large influence on the occurrence of a precipitate
or a deposit in the fuel oil at the time of its storage or at the
time of its use, and hence the cleaning and. dispersing effects of
the detergents and the sludge dispersants that have heretofore been
used are assumed to be insufficient.
[0003] In view of such circumstances, in recent years, a heavy oil
composition subjected to low-sulfurization, the composition being
capable of suppressing the occurrence of sludge even without
containing any sludge dispersant, has been developed (see Patent
Literature 4). However, for example, the composition of a fuel oil
composition is limited, and hence a fuel oil composition that can
effectively suppress the deposition of sludge under various
blending conditions, storage conditions, and use conditions has
been demanded in the market.
CITATION LIST
Patent Literature
[0004] [PTL 1] JP 48-38761 B1
[0005] [PTL 2] JP 53-65306 A
[0006] [PTL 3] JP 05-331470 A
[0007] [PTL 4] JP 2012-92253 A
SUMMARY OF INVENTION
Technical Problem
[0008] Accordingly, an object of the present invention is to
provide a fuel oil composition that can effectively suppress the
deposition of sludge at the time of its storage or at the time of
its use.
Solution to Problem
[0009] The inventors of the present invention have made extensive
investigations with a view to solving the above-mentioned problems,
and as a result, have found that a fuel oil composition including a
specific fuel oil base oil and a specific sludge dispersant is
excellent in suppression of the deposition of sludge at the time of
its storage or at the time of its use. Thus, the inventors have
completed the present invention. That is, according to one
embodiment of the present invention, there is provided a fuel oil
composition, comprising: a fuel oil base oil having a sulfur
element content of from 0.01 mass % to 0.50 mass %; and a calcium
salicylate having a total base number of from 100 m KOH/g to 1,200
m KOH/g.
Advantageous Effects of Invention
[0010] According to the present invention, there can be provided
the fuel oil composition that can suppress the deposition of sludge
at the time of its storage or at the time of its use.
DESCRIPTION OF EMBODIMENTS
[0011] A fuel oil base oil to be used in the present invention is a
fuel oil base oil having a sulfur element content of from 0.01 mass
% to 0.50 mass %. Such fuel oil base oil is not particularly
limited as long as its sulfur element content is from 0.01 mass %
to 0.50 mass %, and a liquid fuel oil that may be used as a fuel
oil is appropriately selected in accordance with use purposes and
conditions. For example, a fuel oil having an adjusted sulfur
element content, such as gasoline, light oil, heavy oil, kerosene,
or a biofuel, may be used. Specific examples of such fuel oil
include JIS Special No. 1 light oil, JIS No. 1 light oil, JIS No. 2
light oil, JIS No. 3 light oil, JIS Special No. 3 light oil, JIS
A-type heavy oil, JIS B-type heavy oil, JIS C-type heavy oil, JIS
No. 1 kerosene, JIS No. 2 kerosene, a marine gas oil (MGO), a
marine diesel oil (MDO), a very low sulfur fuel oil (VLSFO), an
ultra low sulfur fuel oil (ULSFO), palm oil, coconut oil, rapeseed
oil, soybean oil, sunflower oil, corn oil, sesame oil, tall oil,
bone oil, and whale oil. Those fuel oils may be used alone or in
combination thereof. A straight-run light oil fraction, a vacuum
light oil fraction, a desulfurized light oil fraction, a cracked
base oil fraction, a directly desulfurized light oil fraction, an
atmospheric distillation residual oil, a vacuum distillation
residual oil, directly desulfurized heavy oil, cracked heavy oil,
or the like may be used as light oil or heavy oil out of those fuel
oils. In addition, in the present invention, such fuel oils as
described above may be subjected to hydrogenation treatment before
their use.
[0012] The fuel oil. base oil to be used in the present invention
is excellent in sludge deposition-suppressing property when its
sulfur element content falls within the range of from 0.01 mass %
to 0.50 mass %. In addition, from the viewpoints of various
characteristics of a fuel oil, the sulfur element content in the
fuel oil base oil is preferably from 0.03 mass % to 0.48 mass %,
more preferably from 0.10 mass % to 0.45 mass %.
[0013] However, the term "sulfur element content in the fuel oil
base oil" refers to a sulfur element content derived only from the
fuel oil base oil, and a sulfur element derived from an additive is
not included in the calculation of the content.
[0014] In the present invention, the sulfur element content is
measured by an ultraviolet fluorescence method described in JIS K
2541-6 (2003).
[0015] A method of adjusting the sulfur element content of the fuel
oil base oil is not particularly limited, and the sulfur element
content only needs to be adjusted to from 0.01 mass % to 0.50 mass
% by a known method. For example, the sulfur element content of a
fuel oil containing more than 0.50 mass % of a sulfur element may
be set to from 0.01 mass % to 0.50 mass % by subjecting the fuel
oil to direct desulfurization treatment, indirect desulfurization
treatment, or the like. In addition, the following adjustment may
be performed: a fuel oil containing more than 0.50 mass % of a
sulfur element and a fuel oil containing less than 0.50 mass % of a
sulfur element are mixed to provide a fuel. oil base oil having a
sulfur element content of from 0.01 mass % to 0.50 mass %.
[0016] With regard to the viscosity of the fuel oil base oil to be
used in the present invention, from the viewpoint of the effect of
the present invention, its kinematic viscosity at 40.degree. C. is
preferably from 1 mm.sup.2/s to 600 mm.sup.2/s, more preferably
from 2 mm.sup.2/s to 500 mm.sup.2/s, still more preferably from 2
mm.sup.2/s to 400 mm.sup.2/s, still more preferably from 2
mm.sup.2/s to 250 mm.sup.2/s. In the present invention, the
kinematic viscosity is measured by a method described in JIS K 2283
(2000).
[0017] In the present invention, from the viewpoint of the effect
of the present invention, a fuel oil base oil containing at least
one selected from light oil (including light oil special grade 1,
light oil grade 1, light oil grade 2, light oil grade 3, light oil
special grade 3, and a MGO) and heavy oil (including heavy oil A,
heavy oil B, heavy oil C, a MDO, a VLSFO, and an ULSFO) is
preferably used. At this time, the total content of the light oil
and the heavy oil in the fuel oil base oil is not particularly
limited, but from the viewpoint of the effect of the present
invention, the total amount of the light oil and the heavy oil is
preferably from 10 mass % to 100 mass %, more preferably from 40
mass % to 100 mass %, still more preferably from 80 mass % to 100
mass % with respect to the total amount of the fuel oil base oil.
Of such fuel oil base oils, a fuel oil base oil in which a content
ratio between the light oil and the heavy oil is from 0:100 to
90:10 in. terms of mass ratio is preferred. In addition, from the
viewpoint of the effect of the present invention, a fuel oil base
oil containing at least one selected from the MGO and the heavy oil
is particularly preferably used as the fuel oil base oil. At this
time, the total content of the MGO and the heavy oil in a fuel oil
base oil is not particularly limited, but from the viewpoint of the
effect of the present invention, the total amount of the MGO and
the heavy oil is preferably from 10 mass % to 100 mass %, more
preferably from 40 mass % to 100 mass %, still more preferably from
80 mass % to 100 mass %, particularly preferably 100 mass % with
respect to the total amount of the fuel oil base oil. In addition,
a content ratio between the MGO and the heavy oil when the total
amount of the MGO and the heavy oil in the fuel oil base oil is 100
mass % is not particularly limited. For example, the content ratio
between the MGO and the heavy oil may be set to from 0:100 to 100:0
in terms of mass ratio, and is preferably set to from 0:100 to
90:10.
[0018] A calcium salicylate to be used in the present invention is
a calcium salicylate having a total base number of from 100 mgKOH/g
to 1,200 mgKOH/g. In the present invention, the total base number
is a value measured in conformity with ASTM D2896. From the
viewpoint of the effect of the present invention, the total base
number of the calcium salicylate is preferably from 200 mgKOH/g to
1,000 mgKOH/g, more preferably from 300 mgKOH/g to 900 mgKOH/g,
still more preferably from 370 mgKOH/g to 800 mgKOH/g.
[0019] The term "calcium salicylate having a total base number of
from 100 mgKOH/g to 1,200 mgKOH/g" means that the total base number
of the calcium salicylate itself is from 100 mgKOH/g to 1,200
mgKOH/g, and when the fuel oil composition of the present invention
uses two or more kinds of calcium salicylates, the total base
number means the total base number of a mixture formed of the
calcium salicylates.
[0020] Accordingly, as described below, in the case where the
calcium salicylate is diluted with a fuel oil base oil before its
addition to the fuel oil, a desired effect is exhibited even when
the total base number of the diluted product is a value lower than
100 mgKOH/g.
[0021] A commercial product and a product produced by a known
method may each be used as the calcium salicylate to be used in the
present invention, and examples thereof include calcium salicylates
obtained by: a method including causing an alkyl phenol, which is
obtained by alkylating phenol with an olefin having 4 to 32 carbon
atoms, to react with an alkali metal hydroxide to provide an alkyl
phenoxide, then causing the alkyl phenoxide to react with a carbon
dioxide gas to carboxylate the phenoxide, and then causing the
carboxylated product to react with a calcium compound; and a method
including causing salicylic acid and an olefin having 4 to 32
carbon atoms to react with each other through use of an. alkylating
agent to provide an alkylsalicylic acid, and then causing the
alkylsalicylic acid to react with a calcium compound. In addition,
calcium salicylates described in, for example, UK Patent No.
734598, JP 60-101196 A, JP 05-163496 A, and JP 07-258675 A may be
used.
[0022] The calcium salicylate to be used in the present invention
may be specifically, for example, a calcium salt of an
alkylsalicylic acid represented by the following general formula
(1) or general formula (2).
##STR00001##
[0023] In the general formula (1), RI represents a hydrocarbon
group having 4 to 32 carbon atoms. Examples of such group include:
a linear alkyl group having 4 to 32 carbon atoms; a branched alkyl
group having 4 to 32 carbon atoms; a linear alkenyl group having 4
to 32 carbon atoms; a branched alkenyl group having 4 to 32 carbon
atoms; an alicyclic hydrocarbon group having 4 to 32 carbon atoms;
and an aromatic hydrocarbon group having 6 to 32 carbon atoms. From
the viewpoint of the effect of the present invention, R.sup.1
represents preferably a hydrocarbon group having 6 to 30 carbon
atoms, more preferably a hydrocarbon group having 12 to 28 carbon
atoms out of those groups.
[0024] In the general formula (2), R.sup.2 represents a hydrocarbon
group having 4 to 32 carbon atoms. Examples of such group include:
a linear alkyl group having 4 to 32 carbon atoms; a branched alkyl
group having 4 to 32 carbon atoms; a linear alkenyl group having 4
to 32 carbon atoms; a branched alkenyl group having 4 to 32 carbon
atoms; an alicyclic hydrocarbon group having 4 to 32 carbon atoms;
and an aromatic hydrocarbon group having 6 to 32 carbon atoms. From
the viewpoint of the effect of the present invention, R.sup.2
represents preferably a hydrocarbon group having 6 to 30 carbon
atoms, more preferably a hydrocarbon group having 12 to 28 carbon
atoms out of those groups.
[0025] One or more kinds of calcium salts of alkylsalicylic acids
each represented by the general formula (1) described above may be
used as the calcium salicylate to be used in the present invention,
one or more kinds of calcium salts of alkylsalicylic acids each
represented by the general formula (2) may be used, or the one or
more kinds of calcium salts of alkylsalicylic acids each
represented by the general formula (1) and the one or more kinds of
calcium salts of alkylsalicylic acids each represented by the
general formula (2) may be used in combination. In the present
invention, for example, a calcium salt obtained by treating an
alkylsalicylic acid represented by the general formula (1) or the
general formula (2) with a calcium compound, such as calcium
hydroxide, calcium carbonate, calcium borate, calcium chloride, or
heavy calcium carbonate, may be used.
[0026] From the viewpoint of the effect of the present invention,
the calcium salicylate to be used in the present invention
preferably contains at least one of calcium salt of an
alkylsalicylic acid represented by the general formula (1) or the
general formula (2), and is more preferably a mixture of a calcium
salt of an alkylsalicylic acid represented by the general formula
(1) and a calcium salt of an alkylsalicylic acid represented by the
general formula (2). When the calcium salicylate contains the
calcium salt of the alkylsalicylic acid represented by the general
formula (1) and the calcium salt of the alkylsalicylic acid
represented by the general formula (2), a content ratio between the
respective alkylsalicylic acids is not particularly limited.
However, from the viewpoint of the effect of the present invention,
a content molar ratio between the alkylsalicylic acid represented
by the general formula (1) and the alkylsalicylic acid represented
by the general formula (2) is preferably from 10:1 to 0.1:1, more
preferably from 8.0:1 to 0.5:1, still more preferably from 5.0:1 to
1.0:1, particularly preferably from 4.0:1 to 1.5:1.
[0027] When the calcium salicylate to be used in the present
invention contains the calcium salts of the alkylsalicylic acids
represented by the general formula (1) and the general formula (2),
or is a mixture formed of the calcium salts, R.sup.1 and R.sup.2
each preferably represent an alkyl group having 14 to 18 carbon
atoms. In another embodiment, R.sup.1 and R.sup.2 each preferably
represent an alkyl group having 16 to 18 carbon atoms. In still
another embodiment, R.sup.1 and R.sup.2 each preferably represent
an alkyl group having 20 to 28 carbon atoms. In still another
embodiment, R.sup.1 and R.sup.2 each preferably represent an alkyl
group having 16 carbon atoms. In still another embodiment, R.sup.1
and R.sup.2 each preferably represent an alkyl group having 14 to
28 carbon atoms.
[0028] Although a metal ratio with respect to the calcium
salicylate to be used in the present invention (calcium element
content (mol).times.2/alkylsalicylic acid content (mol)) is not
particularly limited, from the viewpoint of the effect of the
present invention, the ratio is preferably from 0.2 to 10, more
preferably from 0.5 to 8.0, still more preferably from 1.0 to 5.0.
The metal ratio with respect to the calcium salicylate can be
adjusted by adjusting a ratio between the calcium element content
and the alkylsalicylic acid content (adjusting a raw material ratio
at the time of the treatment of the alkylsalicylic acid with the
calcium compound). The metal ratio may be increased by, for
example, treating the alkylsalicylic acid with an excess amount of
the calcium compound. In addition, the metal ratio can be set to
less than 1.0 by reducing the ratio of the calcium compound.
[0029] Although a calcium element ratio with respect to the calcium
salicylate to be used in the present invention is not particularly
limited, from the viewpoint of the effect of the present invention,
the ratio may be set to, for example, from 1.0 mass % to 35 mass %,
and is preferably from 1.0 mass % to 30 mass %, more preferably
from 5.0 mass % to 30 massa, still more preferably from 10 mass %
to 28 mass %.
[0030] From the viewpoint of handleability, the calcium salicylate
to be used in the present invention may be treated as follows
before its use: before the preparation of the fuel oil composition,
the calcium salicylate is diluted with a fuel oil base oil in
advance to be turned into a calcium salicylate-diluted product. At
this time, the content of the calcium salicylate in the calcium
salicylate-diluted product can be appropriately adjusted in
accordance with purposes. For example, the content ratio of the
calcium salicylate may be set to from 10 mass % to 99 mass % with
respect to the total amount of the calcium salicylate-diluted
product.
[0031] The fuel oil base oil for diluting the calcium salicylate
may be the same fuel oil base oil as the fuel oil base oil to be
used in the fuel oil composition of the present invention, or may
be a fuel oil base oil different therefrom.
[0032] Although the total base number of the calcium
salicylate-diluted product that may be used in the present
invention is not particularly limited, for example, the total base
number is preferably from 30 mgKOH/g to 400 mgKOH/g, more
preferably from 60 mgKOH/g to 360 mgKOH/g, still more preferably
from 100 mgKOH/g to 300 mgKOH/g, particularly preferably from 150
mgKOH/g to 260 mgKOH/g.
[0033] Although a calcium element ratio with respect to the calcium
salicylate in the calcium salicylate-diluted product that may be
used in the present invention is not particularly limited, from the
viewpoint of the effect of the present invention, the ratio may be
set to, for example, from 1.0 mass % to 35 mass %, and is
preferably from 1.0 mass % to 30 mass %, more preferably from 2.0
mass % to 20 mass %, still more preferably from 10 mass % to 28
mass %, still more preferably from 5.0 mass % to 12.0 masse,
particularly preferably from 6.0 mass % to 9.0 mass %.
[0034] From the viewpoint of the effect of the present invention,
the content of the calcium salicylate in the fuel oil composition
of the present invention is preferably from 0.001 mass % to 5.0
mass %, more preferably from 0.005 mass % to 3.0 mass %, still more
preferably from 0.01 mass % to 2.0 mass % with respect to the total
amount of the fuel oil composition. In addition, from the viewpoint
of the effect of the present invention, the content of the calcium
salicylate in the fuel oil composition of the present invention is
preferably from 1 ppm by mass to 2,000 ppm by mass, more preferably
from 5 ppm by mass to 1,500 ppm by mass, still more preferably from
10 ppm by mass to 1,000 ppm by mass with respect to the total
amount of the fuel oil composition in terms of calcium element
content.
[0035] In the fuel oil composition of the present invention, from
the viewpoint of the effect of the present invention, a ratio
between the sulfur element content in the fuel oil base oil and a
calcium element content derived from the calcium salicylate is
preferably from 1,000:1 to 0.5:1, more preferably from 800:1 to
1:1, still more preferably from 500:1 to 2:1 in terms of mass
ratio.
[0036] The fuel oil composition of the present invention can be
produced through the mixing of the fuel oil base oil having a
sulfur element content of from 0.01 mass % to 0.50 mass % and the
calcium salicylate or the calcium salicylate-diluted product by a
known method. The composition may be produced by, for example,
adding the total amount of the calcium salicylate or the calcium
salicylate-diluted product to the fuel oil base oil in one stroke,
or adding the calcium salicylate or the calcium salicylate-diluted
product thereto in a plurality of baches, under an environment at
from normal temperature to 100.degree. C., and stirring and mixing
the materials at from normal temperature to 150.degree. C.
[0037] In the present invention, from the viewpoint of more
effectively suppressing the deposition of sludge at the time of the
storage of the fuel oil composition or at the time of the use
thereof, the composition preferably further includes a sorbitan
ester. The sorbitan ester that may be used in the present invention
is not particularly limited as long as the sorbitan ester is a
compound obtained by esterifying the entirety or part of the
hydroxy groups of sorbitol or anhydrous sorbitol. Examples thereof
include a sorbitan monofatty acid ester, a sorbitan difatty acid
ester, a sorbitan trifatty acid ester, a sorbitan sesquifatty acid
ester, and a polyoxyalkylene-condensed sorbitan fatty acid ester.
Of those, from the viewpoint of the effect of the present
invention, a sorbitan ester whose fatty acid is any one of lauric
acid, stearic acid, and oleic acid is preferably used.
[0038] Although the HLB of the sorbitan ester is not particularly
limited, the HLB is preferably from 1.2 to 12.0, more preferably
from 1.5 to 11.0, still more preferably from 1.8 to 10.0.
[0039] The HLB is described in detail in, for example, WO
2019/245024 A1 as described below.
[0040] The hydrophilic-lipophilic balance (HLB) represents the
ratio of the molecular weight of a hydrophilic group moiety to the
total molecular weight of a surfactant, and the HLB nonionic
surfactant is determined from Griffin's equation.
[0041] The HLB of a mixed surfactant including two or more kinds of
nonionic surfactants is determined as described below. The HLB of
the mixed surfactant is obtained by arithmetically averaging the
HLB values of the respective nonionic surfactants on the basis of
their blending ratios:
Mixed HLB=.SIGMA.(HLBxWx)/.SIGMA.Wx
where
[0042] HLBx represents the HLB value of a nonionic surfactant X,
and
[0043] Wx represents the mass (g) of the nonionic surfactant X
having the value HLBx.
[0044] Although the content of the sorbitan ester if the fuel oil
composition of the present invention includes the sorbitan ester is
not particularly limited, from the viewpoint of the effect of the
present invention, the content of the sorbitan ester is preferably
from 0.001 mass % to 5.0 mass.degree. , more preferably from 0.005
mass.degree. to 3.0 mass %, still more preferably from 0.01 mass %
to 2.0 mass % with respect to the total amount of the fuel oil
composition.
[0045] In addition, when the fuel oil composition of the present
invention includes the sorbitan ester, a ratio between the calcium
element content derived from the calcium salicylate and the content
of the sorbitan ester in the fuel oil composition is not
particularly limited. However, from the viewpoint of the effect of
the present invention, the ratio between the calcium element
content derived from the calcium salicylate and the content of the
sorbitan ester in the fuel oil composition may be set to, for
example, from 1:1 to 1:10,000 in terms of mass ratio, and is set to
preferably from 1:1 to 1:1,000, more preferably from 1:2 to
1:500.
[0046] When the fuel oil composition of the present invention is
formed as described above, there can be easily produced a. fuel oil
composition, which can suppress the deposition of sludge at the
time of its storage or at the time of its use, and has various
characteristics, such as combustibility, storage stability,
low-temperature fluidity, and handleability.
[0047] The fuel oil composition of the present invention may
further include any other additive in accordance with purposes such
as improvements in combustibility, storage stability, oxidation.
stability, wear resistance, uniformity, safety, environmental
compatibility, startability, low-temperature fluidity, and
handleability. One or more kinds selected from, for example, a
surface ignition inhibitor, an octane number improver, a cetane
number improver, an antimicrobial or microbicidal agent, a rust
inhibitor, a deposit improver, an antioxidant, a metal deactivator,
an antiwear agent, a detergent or a dispersant (excluding a calcium
salicylate), a fluidity improver, a deicing agent, an antiknock
agent, a corrosion inhibitor, an antistatic agent, a combustion
improver, and a dye may be incorporated as such additives in a
total amount of from 0.0001 mass % to 50 mass % with respect to the
total amount of the fuel oil composition.
[0048] Examples of the surface ignition inhibitor include: organic
phosphorus-based compounds, such as tributyl phosphite, trimethyl
phosphite, tricresyl phosphate, tricyclohexyl phosphate, cresyl
diphenyl phosphate, trimethyl phosphate, and methyl phenyl
phosphate; and organic boron-based compounds, such as 2-ethylhexyl
boronate and butyl diisobutyl boronate. Those inhibitors may be
used alone or in combination thereof. Although the content of the
surface ignition inhibitor is not particularly limited, the content
is preferably, for example, from 0.001 mass % to 10 mass % with
respect to the total amount of the fuel oil composition.
[0049] Examples of the octane number improver include methanol,
ethanol, butanol, butyl acetate, methyl-tert-butyl ether,
ethyl-tert-butyl ether, methyl-tert-amyl ether, N-methylaniline,
methylcyclopentadienyl manganese tricarbonyl, and tetraethyllead.
Those improvers may be used alone or in combination thereof.
Although the content of the octane number improver is not
particularly limited, the content is preferably, for example, from
0.001 mass % to 10 mass % with respect to the total amount of the
fuel oil composition.
[0050] Examples of the cetane number improver include: aliphatic
nitrates, such as ethyl nitrate, methoxyethyl nitrate, isopropyl
nitrate, amyl nitrate, hexyl nitrate, heptyl nitrate, octyl
nitrate, 2-ethylhexyl nitrate, and cyclohexyl nitrate; and
peroxides such as di-tert-butyl peroxide. Those improvers may be
used alone or in combination thereof. Although the content of the
cetane number improver is not particularly limited, the content is
preferably, for example, from 0.001 mass % to 10 mass % with
respect to the total amount of the fuel oil composition.
[0051] Examples of the antimicrobial or microbicidal agent include:
inorganic microbicidal agents, such as silver sulfate, silver
nitrate, zinc sulfate, zinc nitrate, copper sulfate, and copper
ethylenediaminetetraacetate; organic nitrogen-based antimicrobial
agents, such as hexahydro-1,3,5-tris(2-hydroxyethyl)-triazine;
organic bromine-based antimicrobial agents, such as
2,2-dibromo-3-nitrilopropionamide, 1,4-bis(bromoacetoxy)-2-ethane,
and bistribromomethvlsulfone; and isothiazoline-based antimicrobial
agents, such as 2-methyl-4-isothiazolin-3-one,
2-methyl-4,5-trimethylene-4-isothiazolin-3-one,
5-chloro-2-methyl-4-isothiazolin-3-one,
2-n-octylisothiazolin-3-one, 4,
5-dichloro-2-n-octylisothiazolin-3-one, 1,2-benzisothiazolin-3-one,
and N-n-butyl-1,2-benzisothiazolin-3-one. Those agents may be used
alone or in combination thereof. Although the content of the
antimicrobial or microbicidal agent is not particularly limited,
the content is preferably, for example, from 0.001 mass % to 10
mass % with respect to the total amount of the fuel oil
composition.
[0052] Examples of the rust inhibitor include an aliphatic amine
and a salt thereof, an organic phosphoric acid ester, and an
organic sulfonic acid salt. Those inhibitors may be used alone or
in combination thereof. Although the content of the rust inhibitor
is not particularly limited, the content is preferably, for
example, from 0.001 mass % to 10 mass % with respect to the total
amount of the fuel oil composition.
[0053] Examples of the deposit improver include tricresyl
phosphate, trimethyl phosphate, tris(chloroethyl) phosphate,
polypropylene, polybutene, polyisobutylene amine, polyether amine,
polyalkylamine, polyoxyalkyleneamine, polyalkylphenoxyaminoalkane,
and polyalkylene succinimide. Those improvers may be used alone or
in combination thereof. Although the content of the deposit
improver is not particularly limited, the content is preferably,
for example, from 0.001 mass % to 10 mass % with respect to the
total amount of the fuel oil composition.
[0054] Examples of the antioxidant include: amine-based
antioxidants, such as N,N'-diisopropyl-p-phenylenediamine,
N,N'-dibutyl-p-phenylenediamine, N,N'-dioctyl-p-phenyienediamine,
N,N'-diphenyl-p-phenylenediamine, N,N'-ditolyl-p-phenylenediamine,
and N-tolyl-N'-xylenyl-p-phenylenediamine; phenol-based
antioxidants, such as 2-t-butylphenol, 2,6-ditertiarybutylphenol,
2, 6-ditertiarybutyl-4-methylphenol,
2,4-dimethyl-6-tertiarybutylphenol, and 2,4,6-tri-t-butylphenol;
and sulfur-based antioxidants, such as dilauryl
3,3'-thiodipropionate, distearyl 3,3'-thiodipropionate, lauryl
stearyl 3,3'-thiodipropionate, dimyristyl 3,3'-thiodipropionate,
distearyl p,p'-thiodibutylate, and dilauryl sulfide. Those
antioxidants may be used alone or in combination thereof. Although
the content of the antioxidant is not particularly limited, the
content is preferably, for example, from 0.001 mass % to 10 mass %
with respect to the total amount of the fuel oil composition.
[0055] Examples of the metal deactivator include: amino compounds,
such as ethylenediamine; salicylidene-based compounds, such as
N,N'-disalicylidene-1,2-diaminopropane,
N,N'-disalicylidene-2-cyclohexanediamine, N,N'-disalicylidene
ethylenediamine, N,N'-bis(dimethylsalicylidene)ethylenediamine,
N,N'-bis(dimethylsalicylidene)ethylenetetramine, and
salicylaldoxime; triazole-based compounds, such as
1-[bis(2-ethylhexyl)aminomethyl]-1,2,4-triazole,
1-(1-butoxyethyl)-1,2,4-triazole,
4,4'-methylenebis(2-undecyl-5-methylimidazole), and
bis[(N-methyl)imidazol-2-yl]carbinol octyl ether; and
benzotriazole-based compounds, such as a 4-alkylbenzotriazole,
4,5,6,7-tetrahydrobenzotriazole, 5,5'-methylenebisbenzotriazole,
1-[bis(2-ethylhexyl)aminomethyl]triazole, 1-[bis(2-ethylhexyl)
aminomethyl]benzotriazole, 1-(nonyloxymethyl)benzotriazole, and
1-(1-butoxyethyl)benzotriazole. Those deactivators may be used
alone or in combination thereof. Although the content of the metal
deactivator is not particularly limited, the content is preferably,
for example, from 0.001 mass % to 10 mass % with respect to the
total amount of the fuel oil composition.
[0056] Examples of the antiwear agent include: sulfur-based
antiwear agents, such as sulfurized fats and oils, an olefin
polysulfide, a sulfurized olefin, dibenzyl sulfide,
ethyl-3-[[bis(1-methylethoxy)phosphinothioyl]thio]propionate, a
tris-[(2 or 4)-isoalkylphenol]thiophosphate,
3-(di-isobutoxy-thiophosphorylsulfanyl)-2-methyl-propionic acid,
triphenyl phosphorothionate, p-dithiophosphorylated propionic acid,
methylenebis(dibutyldithiocarbamate),
O,O-diisopropyl-dithiophosphorylethyl propionate,
2,5-bis(n-nonyldithio)-1,3,4-thiadiazole,
2,5-bis(1,1,3,3-tetramethylbutanethio)-1,3,4-thiadiazole, and
2,5-bis(1,1,3,3-tetramethyldithio)-1,3,4-thiadiazole;
phosphorus-based compounds, such as monooctyl phosphate, dioctyl
phosphate, trioctyl phosphate, monobutyl phosphate, dibutyl
phosphate, tributyl phosphate, monophenyl phosphate, diphenyl
phosphate, triphenyl phosphate, tricresyl phosphate,
monoisopropylphenyl phosphate, diisopropylphenyl phosphate,
triisopropylphenyl phosphate, monotertiarybutylphenyl phosphate,
di-tert-butylphenyl phosphate, tri-tert-butylphenyl phosphate,
triphenyl thiophosphate, monooctyl phosphite, dioctyl phosphite,
trioctyl phosphite, monobutyl phosphite, dibutyl phosphite,
tributyl phosphite, monophenyl phosphite, diphenyl phosphite,
triphenyl phosphite, monoisopropylphenyl phosphite,
diisopropylphenyl phosphite, triisopropylphenyl phosphite,
mono-tert-butylphenyl phosphite, di-tert-butylphenyl phosphite, and
tri-tert-butyphenyl phosphite; fatty acids, such as caprylic acid,
2-ethylhexanoic acid, nonanoic acid, isononanoic acid, capric acid,
lauric acid, myristic acid, palmitic acid, stearic acid, arachidic
acid, and behenic acid; organometallic compounds, such as a
naphthenic acid metal salt, a fatty acid metal salt, a phosphoric
acid metal salt, a phosphoric acid ester metal salt, and a
phosphorous acid ester metal salt; and a boron compound, alkylamine
salts of monohexvl and dihexyl phosphates, a phosphoric acid ester
amine salt, and a mixture of a triphenylthiophosphoric acid ester
and a tert-butylphenyl derivative. Although the content of the
antiwear agent is not particularly limited, the content is
preferably, for example, from 0.01 mass % to 10 mass % with respect
to the total amount of the fuel oil composition.
[0057] Examples of the detergent or the dispersant include a
phosphoric amide, an aminoalkane, an alkylamine phosphoric acid
ester, polyether amine, polybutenylamine, an alkenyl succinimide,
an alkenyl succinic acid ester, a salicylic acid metal salt
(excluding a calcium salicylate), a sulfonic acid metal salt, a
carboxylic acid metal salt, and a phosphoric acid metal salt. Those
detergents and dispersants may be used alone or in combination
thereof. Although the content of the detergent or the dispersant is
not particularly limited, the content is preferably, for example,
from 0.001 mass % to 10 mass % with respect to the total amount of
the fuel oil composition.
[0058] Examples of the fluidity improver include a
polymethacrylate-based polymer, a polyacrylate-based polymer, an
olefinically unsaturated polymer, an ethylene-vinyl acetate-based
copolymer, a polyolefin-substituted phenol-based. polymer, an
alkenyl succinamide, a fatty acid ester of an alkylene oxide adduct
of an alkane polyol, and a fatty acid ester of an alkylene oxide
adduct of an alkanolamine. Those improvers may be used alone or in
combination thereof. Although the content of the fluidity improver
is not particularly limited, the content is preferably, for
example, from 0.001 mass % to 10 mass % with respect to the total
amount of the fuel oil composition.
[0059] Although the calculated carbon aromaticity index (CCAI) of
the fuel oil composition of the present invention is not
particularly limited, from the viewpoints of various
characteristics of the fuel oil composition, the CCAI is preferably
780 or more and 900 or less, more preferably 800 or more and 860 or
less. In the present invention, the CCAI of the fuel oil
composition is calculated on the basis of ISO 8217.
[0060] Although the flash point of the fuel oil composition of the
present invention is not particularly limited, from the viewpoints
of various characteristics of the fuel oil composition, the flash
point is preferably 40.degree. C. or more and 120.degree. C. or
less. In the present invention, the flash point of the fuel oil
composition is measured by a Pensky-Martens closed cup method
described in JIS K 2265-3 (2007).
[0061] Although the pour point of the fuel oil composition of the
present invention is not particularly limited, from the viewpoints
of various characteristics of the fuel oil composition, the pour
point is preferably -40.degree. C. or more and 30.degree. C. or
less. In the present invention, the pour point of the fuel oil
composition is measured by a method described in JIS K 2269
(1987).
[0062] Although the kinematic viscosity of the fuel oil composition
of the present invention is not particularly limited, from the
viewpoints of various characteristics of the fuel oil composition,
the kinematic viscosity thereof at 40.degree. C. is preferably from
1 mm.sup.2/s to 400 mm.sup.2/s, more preferably from 2 mm.sup.2/s
to 200 mm.sup.2/s, most preferably from 2 mm.sup.2/s to 100
mn.sup.-2/s.
[0063] Although the density of the fuel oil composition of the
present invention is not particularly limited, from the viewpoints
of various characteristics of the fuel oil composition, the density
thereof at 15.degree. C. is preferably 0.70 g/cm.sup.3 or more and
1.00 g/cm.sup.3 or less, more preferably 0.80 g/cm.sup.3 or more
and 0.98 g/cm.sup.3 or less. In the present invention, the density
of the fuel oil composition is measured by a method described in
JIS K 2249 (2011).
[0064] The fuel oil composition of the present invention can be
used without any particular limitation as long as its mode of use
is such that a liquid fuel oil is used. The composition may be used
as, for example, a fuel oil for an automobile such as a passenger
car or a truck, a fuel oil for a ship such as a passenger ship or a
cargo ship, a fuel oil for an aircraft such as an airplane or a
helicopter, a fuel oil for a railway vehicle, such as a diesel
locomotive, a fuel oil for agricultural machinery, or a fuel oil
for construction machinery. The composition is preferably used as a
fuel oil for a ship out of those fuel oils.
EXAMPLES
[0065] The present invention is more specifically described below
by way of the Examples. In the Examples below, the term "%" is on a
mass basis unless otherwise stated. Respective components used in
the Examples are described below.
[0066] [Preparation of Calcium Salicylate-diluted Product]
[0067] The following fuel oil base oil, and calcium salicylates 1
to 17 and a low-base number calcium salicylate (comparative
compound) shown in Table 1 were used, and the respective calcium
salicylates were mixed and diluted with the following fuel oil base
oil A at a mass ratio of 40:60 to prepare calcium
salicylate-diluted products 1 to 17 and a low-base number calcium
salicylate-diluted product, respectively. In Table 1, the column
"(1):(2) structure ratio" shows a molar ratio between a compound
represented by the general formula (1) and a compound represented
by the general formula (2) in each calcium salicylate, and the
column "Structure represented by R.sup.1 or R.sup.2" shows a
structure represented by R.sup.1 in each calcium salicylate
represented by the general formula (1) and a structure represented
by R.sup.2 in each calcium salicylate represented by the general
formula (2).
[0068] <Fuel Oil Base Oil>
[0069] Fuel oil base oil A: A fuel oil base oil formed of a cracked
base oil fraction having a sulfur element content of 0.25% and a
kinematic viscosity at 40.degree. C. of 25.0 mm.sup.2/s.
TABLE-US-00001 TABLE 1 Total base Ca element (1):(2) number content
ratio structure (mgKOH/g) (mass %) ratio Structure represented by
R.sup.1 or R.sup.2 Calcium salicylate 1 560 20% 2.2:1 Alkyl group
having 14 to 18 carbon atoms Calcium salicylate 2 390 14% 2.2:1
Alkyl group having 14 to 18 carbon atoms Calcium salicylate 3 278
10% 2.2:1 Alkyl group having 14 to 18 carbon atoms Calcium
salicylate 4 860 32% 2.2:1 Alkyl group having 14 to 18 carbon atoms
Calcium salicylate 5 420 14% 1.8:1 Alkyl group having 16 to 18
carbon atoms Calcium salicylate 6 700 25% 1.5:1 Alkyl group having
16 to 18 carbon atoms Calcium salicylate 7 668 25% 2.5:1 Alkyl
group having 14 to 18 carbon atoms Calcium salicylate 8 400 16%
2.5:1 Alkyl group having 14 to 18 carbon atoms Calcium salicylate 9
425 15% 3.1:1 Alkyl group having 14 to 18 carbon atoms Calcium
salicylate 10 573 20% 3.5:1 Alkyl group having 20 to 28 carbon
atoms Calcium salicylate 11 800 28% 3.5:1 Alkyl group having 20 to
28 carbon atoms Calcium salicylate 12 158 5.2% 3.5:1 Alkyl group
having 20 to 28 carbon atoms Calcium salicylate 13 425 15% 3.0:1
Alkyl group having 14 to 28 carbon atoms Calcium salicylate 14 475
17% 3.2:1 Alkyl group having 14 to 18 carbon atoms Calcium
salicylate 15 698 29% 1.5:1 Alkyl group having 16 carbon atoms
Calcium salicylate 16 600 24% 1.5:1 Alkyl group having 16 carbon
atoms Calcium salicylate 17 433 16% 1.5:1 Alkyl group having 16
carbon atoms Low-base number 40 2.3% 2.2:1 Alkyl group having 14 to
18 carbon atoms calcium salicylate
[0070] [Fuel Oil Composition Preparation A]
[0071] Fuel oil compositions were prepared by using fuel oil base
oils, calcium salicylate-diluted products, sorbitan esters, and
dispersants, which were comparative compounds, described below as
shown in Tables 2 to 9 below. In addition, calcium element contents
derived from the calcium salicylates in the calcium
salicylate-diluted products, or the comparative compounds, in the
respective fuel oil compositions are also shown in Tables 2 to
9.
[0072] <Fuel Oil Base Oil>
[0073] Fuel oil base oil 1: A fuel oil base oil having a sulfur
element content of 0.44% and a kinematic viscosity at 40.degree. C.
of 5.5 mm.sup.2/s (mixed base oil containing 20 mass % of heavy oil
C having a sulfur element content of 2.1% and 80 mass % of a MGO
having a sulfur element content of 0.03%)
[0074] Fuel oil base oil 2: A fuel oil base oil having a sulfur
element content of 0.24% and a kinematic viscosity at 40.degree. C.
of 4.2 mm.sup.2/s (mixed base oil containing 10 mass % of heavy oil
C having a sulfur element content of 2.1% and 90 mass % of a MGO
having a sulfur element content of 0.03%)
[0075] Fuel oil base oil 3: A fuel oil base oil having a sulfur
element content of 0.04% and a kinematic viscosity at 40.degree. C.
of 3.1 rrm'.sup.2/s (mixed base oil containing 0.5 mass % of heavy
oil C having a sulfur element content of 2.1% and 99.5 mass % of a
MGO having a sulfur element content of 0.03%)
[0076] Fuel oil base oil 6: A fuel oil base oil having a sulfur
element content of 0.36% and a kinematic viscosity at 40.degree. C.
of 120 mm.sup.2/s (mixed base oil containing 5 mass % of a VLSFO
having a sulfur element content of 0.46% and 95 mass % of a. VLSFO
having a sulfur element content of 0.35%)
[0077] Fuel oil base oil 7: A fuel oil base oil formed of a VLSFO
having a sulfur element content of 0.46% and a kinematic viscosity
at 40.degree. C. of 138 mm.sup.2/s
[0078] Fuel oil base oil 8: A fuel oil base oil formed of a VLSFO
having a sulfur element content of 0.47% and a kinematic viscosity
at 40.degree. C. of 475 mm.sup.2/s
[0079] Fuel oil base oil 9: A fuel oil base oil formed of a VLSFO
having a sulfur element content of 0.44% and a kinematic viscosity
at 40.degree. C. of 8.1 mm.sup.2/s
[0080] <Calcium Salicylate-diluted Product>
[0081] Calcium salicylate-diluted product 1: A diluted product
having a total base number of 224 mgKOH/g and a calcium element
ratio of 8.1%
[0082] Calcium salicylate-diluted product 2: A diluted product
having a total base number of 156 mgKOH/g and a calcium element
ratio of 5.5%
[0083] Calcium salicylate-diluted product 3: A diluted product
having a total base number of 111 mgKOH/g and a calcium element
ratio of 4.0%
[0084] Calcium salicylate-diluted product 4: A diluted product
having a total base number of 344 mgKOH/g and a calcium element
ratio of 12.9%
[0085] Calcium salicylate-diluted product 5: A diluted product
having a total base number of 168 mgKOH/g and a calcium element
ratio of 5.6%
[0086] Calcium salicylate-diluted product 6: A diluted product
having a total base number of 280 mgKOH/g and a calcium element
ratio of 10.0%
[0087] Calcium salicylate-diluted product 7: A diluted product
having a total base number of 267 mgKOH/g and a calcium element
ratio of 10.0%
[0088] Calcium salicylate-diluted product 8: A diluted product
having a total base number of 160 mgKOH/g and a calcium element
ratio of 6.3%
[0089] Calcium salicylate-diluted product 9: A diluted product
having a total base number of 170 mgKOH/g and a calcium element
ratio of 6.1%.
[0090] Calcium salicylate-diluted product 10: A diluted product
having a total base number of 229 mgKOH/g and a calcium element
ratio of 8.0%
[0091] Calcium salicylate-diluted product 11: A diluted product
having a total base number of 320 mgKOH/g and a calcium element
ratio of 11.0%.
[0092] Calcium salicylate-diluted product 12: A diluted product
having a total base number of 63 mgKOH/g and a calcium element
ratio of 2.1%
[0093] Calcium salicylate-diluted product 13: A diluted product
having a total base number of 170 mgKOH/g and a calcium element
ratio of 6.1%
[0094] Calcium salicylate-diluted product 14: A diluted product
having a total base number of 190 mgKOH/g and a calcium element
ratio of 6.7%
[0095] Calcium salicylate-diluted product 15: A diluted product
having a total base number of 279 mgKOH/g and a calcium element
ratio of 11.7%
[0096] Calcium salicylate-diluted product 16: A diluted product
having a total base number of 240 mgKOH/g and a calcium element
ratio of 9.6%
[0097] Calcium salicylate-diluted product 17: A diluted product
having a total base number of 173 mgKOH/g and a calcium element
ratio of 6.2%
[0098] <Sorbitan Ester>
[0099] Sorbitan ester 1: Sorbitan sesquioleate (HLB: 3.7)
[0100] Sorbitan ester 2: Sorbitan monooleate (HLB: 4.3)
[0101] Sorbitan ester 3: Sorbitan trioleate (HLB: 1.8)
[0102] Sorbitan ester 4: Polyoxyethylene (6) sorbitan monooleate
(HLB: 10.0)
[0103] <Comparative Compound>
[0104] Low-base number calcium salicylate-diluted product: A
diluted product of the low-base number calcium salicylate (total
base number: 16 mgKOH/g, calcium element ratio: 0.9%)
[0105] Calcium sulfonate-diluted product: A diluted product having
a total base number of 300 mgKOH/g and a calcium element ratio of
11.8% (diluted product obtained by mixing calcium sulfonate having
a total base number of 750 mgKOH/g and a calcium element ratio of
30%, and the fuel oil base oil A at a mass ratio of 40:60)
[0106] Alkyl salicylate: 5-Methylsalicylic acid
[0107] Salicylic acid alkyl ester: 2-Ethylhexyl salicylate
[0108] Succinimide-based dispersant: Polyisobutene succinimide
[0109] Phosphoric acid ester-based dispersant: An oleyl-4EO
phosphoric acid ester
[0110] Pluronic dispersant: A POE-POP block polymer of
ethylenediamine
[0111] Polycarboxylic acid-based dispersant: A sodium salt of an
olefin/maleic acid copolymerized product
[0112] Acetylene-based dispersant: A POE-POP block polymer of
acetylenediol
TABLE-US-00002 TABLE 2 Example Example Example Example Example 1 2
3 4 5 Fuel oil Fuel oil base oil 1 Balance base oil Fuel oil base
oil 2 Balance Balance Balance Fuel oil base oil 3 Balance Calcium
Calcium salicylate-diluted product 1 0.10% 0.10% 0.10% 0.04% 0.30%1
salicylate- Calcium salicylate-diluted product 2 diluted Calcium
salicylate-diluted product 3 product Calcium salicylate-diluted
product 4 Calcium salicylate-diluted product 5 Calcium
salicylate-diluted product 6 Calcium salicylate-diluted product 7
Calcium salicylate-diluted product 8 Calcium salicylate-diluted
product 9 Calcium salicylate-diluted product 10 Calcium
salicylate-diluted product 11 Calcium salicylate-diluted product 12
Calcium salicylate-diluted product 13 Calcium salicylate-diluted
product 14 Calcium salicylate-diluted product 15 Calcium
salicylate-diluted product 16 Calcium salicylate-diluted product 17
Calcium element content (ppm by mass) 81 81 31 32 243 Spot test
evaluation result 2 2 1 2 1 Example Example Example Example 6 7 8 9
Fuel oil Fuel oil base oil 1 base oil Fuel oil base oil 2 Balance
Balance Balance Balance Fuel oil base oil 3 Calcium Calcium
salicylate-diluted product 1 0.50% 1.0% salicylate- Calcium
salicylate-diluted product 2 0.30% diluted Calcium
salicylate-diluted product 3 0.30% product Calcium
salicylate-diluted product 4 Calcium salicylate-diluted product 5
Calcium salicylate-diluted product 6 Calcium salicylate-diluted
product 7 Calcium salicylate-diluted product 8 Calcium
salicylate-diluted product 9 Calcium salicylate-diluted product 10
Calcium salicylate-diluted product 11 Calcium salicylate-diluted
product 12 Calcium salicylate-diluted product 13 Calcium
salicylate-diluted product 14 Calcium salicylate-diluted product 15
Calcium salicylate-diluted product 16 Calcium salicylate-diluted
product 17 Calcium element content (ppm by mass) 405 810 165 120
Spot test evaluation result 1 1 1 1
TABLE-US-00003 TABLE 3 Example Example Example Example Example
Example Example Example 10 11 12 13 14 15 16 17 Fuel oil Fuel oil
base oil 1 base oil Fuel oil base oil 2 Balance Balance Balance
Balance Balance Balance Balance Balance Fuel oil base oil 3 Calcium
Calcium salicylate-diluted product 1 salicylate- Calcium
salicylate-diluted product 2 diluted Calcium salicylate-diluted
product 3 product Calcium salicylate-diluted product 4 0.30%
Calcium salicylate-diluted product 5 0.30% Calcium
salicylate-diluted product 6 0.30% Calcium salicylate-diluted
product 7 0.30% Calcium salicylate-diluted product 8 0.10% 0.30%
Calcium salicylate-diluted product 9 0.30% Calcium
salicylate-diluted product 10 0.30% Calcium salicylate-diluted
product 11 Calcium salicylate-diluted product 12 Calcium
salicylate-diluted product 13 Calcium salicylate-diluted product 14
Calcium salicylate-diluted product 15 Calcium salicylate-diluted
product 16 Calcium salicylate-diluted product 17 Calcium element
content (ppm by mass) 387 168 300 300 63 189 183 240 Spot test
evaluation result 2 1 1 2 2 1 1 1
TABLE-US-00004 TABLE 4 Example Example Example Example Example
Example Example Example 18 19 20 21 22 23 24 25 Fuel oil Fuel oil
base oil 1 base oil Fuel oil base oil 2 Balance Balance Balance
Balance Balance Balance Balance Balance Fuel oil base oil 3 Calcium
Calcium salicylate-diluted product 1 salicylate- Calcium
salicylate-diluted product 2 diluted Calcium salicylate-diluted
product 3 product Calcium salicylate-diluted product 4 Calcium
salicylate-diluted product 5 Calcium salicylate-diluted product 6
Calcium salicylate-diluted product 7 Calcium salicylate-diluted
product 8 Calcium salicylate-diluted product 9 Calcium
salicylate-diluted product 10 Calcium salicylate-diluted product 11
0.30% Calcium salicylate-diluted product 12 0.30% Calcium
salicylate-diluted product 13 0.10% 0.30% Calcium
salicylate-diluted product 14 0.30% Calcium salicylate-diluted
product 15 0.30% Calcium salicylate-diluted product 16 0.30%
Calcium salicylate-diluted product 17 0.30% Calcium element content
(ppm by mass) 330 63 61 183 201 351 288 186 Spot test evaluation
result 2 2 2 1 2 2 2 2
TABLE-US-00005 TABLE 5 Comparative Comparative Comparative
Comparative Comparative Example 1 Example 2 Example 3 Example 4
Example 5 Fuel oil Fuel oil base oil 1 Balance base oil Fuel oil
base oil 2 Balance Balance Balance Fuel oil base oil 3 Balance
Comparative Low-base number calcium 0.30% 0.50% compound
salicylate-diluted product Calcium sulfonate-diluted product Alkyl
salicylate Salicylic acid alkyl ester Succinimide-based dispersant
Phosphoric acid ester-based dispersant Pluronic dispersant
Polycarboxylic acid-based dispersant Acetylene-based dispersant
Calcium element content (ppm by mass) 0 0 0 27 45 Spot test
evaluation result 5 5 3 4 3 Comparative Comparative Comparative
Comparative Example 6 Example 7 Example 8 Example 9 Fuel oil Fuel
oil base oil 1 base oil Fuel oil base oil 2 Balance Balance Balance
Balance Fuel oil base oil 3 Comparative Low-base number calcium
compound salicylate-diluted product Calcium sulfonate-diluted 0.10%
0.30% product Alkyl salicylate 0.10% 0.30% Salicylic acid alkyl
ester Succinimide-based dispersant Phosphoric acid ester-based
dispersant Pluronic dispersant Polycarboxylic acid-based dispersant
Acetylene-based dispersant Calcium element content (ppm by mass)
118 354 0 0 Spot test evaluation result 4 3 5 4
TABLE-US-00006 TABLE 6 Comparative Comparative Comparative
Comparative Comparative Comparative Comparative Example 10 Example
11 Example 12 Example 13 Example 14 Example 15 Example 16 Fuel oil
Fuel oil base oil 1 base oil Fuel oil base oil 2 Balance Balance
Balance Balance Balance Balance Balance Fuel oil base oil 3
Comparative Low-base number calcium compound salicylate-diluted
product Calcium sulfonate-diluted product Alkyl salicylate
Salicylic acid alkyl ester 0.10% 0.30% Succinimide-based dispersant
1.0% Phosphoric acid ester-based 0.30% dispersant Pluronic
dispersant 1.0% Polycarboxylic acid-based 1.0% dispersant
Acetylene-based dispersant 1.0% Calcium element content (ppm by
mass) 0 0 0 0 0 0 0 Spot test evaluation result 4 3 4 3 4 4 4
TABLE-US-00007 TABLE 7 Example Example Example Example Example
Example Example 26 27 28 29 30 31 32 Fuel oil Fuel oil base oil 1
base oil Fuel oil base oil 2 Balance Balance Balance Balance
Balance Balance Balance Fuel oil base oil 3 Fuel oil base oil 6
Fuel oil base oil 7 Fuel oil base oil 8 Fuel oil base oil 9 Calcium
salicylate-diluted product 1 0.02% 0.04% 0.10% 0.15% 0.10% 0.10%
0.10% Sorbitan ester Sorbitan ester 1 0.50% 0.50% 0.30% 0.15%
Sorbitan ester 2 0.50% Sorbitan ester 3 0.50% Sorbitan ester 4
0.50% Calcium element content (ppm by mass) 16 32 81 122 81 81 81
Spot test evaluation result 2 1 1 1 1 1 1
TABLE-US-00008 TABLE 8 Example Example Example Example Example
Example Example Example Example 33 34 35 36 37 38 39 40 41 Fuel oil
Fuel oil base oil 1 base oil Fuel oil base oil 2 Fuel oil base oil
3 Fuel oil base oil 6 Balance Balance Balance Fuel oil base oil 7
Balance Balance Fuel oil base oil 8 Balance Balance Fuel oil base
oil 9 Balance Balance Calcium salicylate-diluted product 1 0.01%
0.10% 0.02% 0.02% 0.02% 0.01% 0.01% 0.01% 0.01% Sorbitan ester
Sorbitan ester 1 0.30% 0.30% 0.30% 0.30% Sorbitan ester 2 Sorbitan
ester 3 Sorbitan ester 4 Calcium element, content (ppm by mass) 8
81 16 16 16 8 8 8 8 Spot test evaluation result 2 1 2 2 2 1 1 1
1
TABLE-US-00009 TABLE 9 Comparative Comparative Comparative
Comparative Example 17 Example 18 Example 19 Example 20 Fuel oil
Fuel oil base oil 1 base oil Fuel oil base oil 2 Fuel oil base oil
3 Fuel oil base oil 6 Balance Fuel oil base oil 7 Balance Fuel oil
base oil 8 Balance Fuel oil base oil 9 Balance Calcium
salicylate-diluted product 1 Sorbitan Sorbitan ester 1 ester
Sorbitan ester 2 Sorbitan ester 3 Sorbitan ester 4 Calcium element
content (ppm by mass) 0 0 0 0 Spot test evaluation result 3 3 3
3
[0113] <Evaluation of Sludge Dispersibility>
[0114] The fuel oil compositions prepared in Examples 1 to 41 and
Comparative Examples 1 to 20 were evaluated for their sludge
dispersion-deposition characteristics by a spot test method
described in ASTM D 4740 (2014). Specifically, each of the fuel oil
compositions heated to 90.degree. C. was dropped onto filter paper
(test paper), and was held at 100.degree. C. for 1 hour. After
that, a spot test evaluation was performed by evaluating the state
of a spot on the filter paper in accordance with the following
evaluation indices. In this evaluation, an evaluation index 1 means
that the evaluated composition is most excellent in sludge
dispersibility (suppression of the deposition of sludge), and the
evaluation index 1 or an evaluation index 2 means that the
composition has practicality. The results were shown in Tables 2 to
9 above.
[0115] <Evaluation Indices of Spot Test>
[0116] 1: No inner ring is observed, and the spot is uniform.
[0117] 2: An inner ring is slightly or incompletely observed.
[0118] 3: An inner ring that is slightly darker than a background
is observed.
[0119] 4: An inner ring that is deeper than that of the index 3 and
is somewhat darker than the background is observed.
[0120] 5: A particle or a particulate substance is observed at the
center of an inner ring, and is clearly darker than the
background.
[0121] It can be said from the foregoing results that the fuel oil
composition of the present invention is excellent in sludge
dispersibility, and is hence excellent in suppression of the
deposition of sludge at the time of its storage or at the time of
its use.
[0122] [Fuel Oil Composition Preparation B]
[0123] Blending examples of fuel oil compositions prepared by using
the following fuel oil base oils, calcium salicylate-diluted
products, sorbitan esters, and other additives are shown in Tables
10 to 15.
[0124] <Fuel Oil Base Oil>
[0125] Fuel oil base oil 1: A fuel oil base oil having a sulfur
element content of 0.44% and a kinematic viscosity at 40.degree. C.
of 5.5 mm.sup.2/s (mixed base oil containing 20 mass % of heavy oil
C having a sulfur element content of 2.1% and 80 mass % of a MGO
having a sulfur element content of 0.03%)
[0126] Fuel oil base oil 2: A fuel oil base oil having a sulfur
element content of 0.24% and a kinematic viscosity at 40.degree. C.
of 4.2 mm.sup.2/s (mixed base oil containing 10 mass % of heavy oil
C having a sulfur element content of 2.1% and 90 mass % of a MGO
having a sulfur element content of 0.03%)
[0127] Fuel oil base oil 3: A fuel oil base oil having a sulfur
element content of 0.04% and a kinematic viscosity at 40.degree. C.
of 3.1 mm.sup.2/s (mixed base oil containing 0.5 mass % of heavy
oil C having a sulfur element content of 2.1% and 99.5 mass % of a
MGO having a sulfur element content of 0.03%)
[0128] Fuel oil base oil 4: A fuel oil base oil having a sulfur
element content of 0.03% and a kinematic viscosity at 40.degree. C.
of 3.1 mm.sup.2/s (100 mass % of a MGO having a sulfur element
content of 0.03%)
[0129] Fuel oil base oil 5: A fuel oil base oil having a sulfur
element content of 0.30% and a kinematic viscosity at 40.degree. C.
of 90 mm.sup.2/s (mixed base oil containing 20 mass % of an ULSFO
having a sulfur element content of 0.08% and 80 mass % of a VLSFO
having a sulfur element content of 0.35%)
[0130] Fuel oil base oil 6: A fuel oil base oil having a sulfur
element content of 0.36% and a kinematic viscosity at 40.degree. C.
of 120 mm.sup.2/s (mixed base oil containing 5 mass % of a VLSFO
having a sulfur element content of 0.46% and 95 mass % of a VLSFO
having a sulfur element content of 0.35%)
[0131] Fuel oil base oil 7: A fuel oil base oil formed of a VLSFO
having a sulfur element content of 0.46% and a kinematic viscosity
at 40.degree. C. of 138 mm.sup.2/s
[0132] Fuel oil base oil 8: A fuel oil base oil formed of a VLSFO
having a sulfur element content of 0.47% and a kinematic viscosity
at 40.degree. C. of 475 mm.sup.2/s
[0133] Fuel oil base oil 9: A fuel oil base oil formed of a VLSFO
having a sulfur element content of 0.44% and a kinematic viscosity
at 40.degree. C. of 8.1 mm.sup.2/s
[0134] <Calcium Salicylate-diluted Product>
[0135] Calcium salicylate-diluted product 3: A diluted product
having a total base number of 111 mgKOH/g and a calcium element
ratio of 4.0%
[0136] Calcium. salicylate-diluted product 9: A. diluted product
having a total base number of 170 mgKOH/g and a calcium element
ratio of 6.1%
[0137] Calcium salicylate-diluted product 11: A diluted product
having a total base number of 320 mgKOH/g and a calcium element
ratio of 11.0%
[0138] Calcium salicylate-diluted product 16: A diluted product
having a total base number of 240 mgKOH/g and a calcium element
ratio of 9.6%
<Sorbitan Ester>
[0139] Sorbitan ester 1: Sorbitan sesquioleate (HLB: 3.7)
[0140] Sorbitan ester 2: Sorbitan monooleate (HLB: 4.3)
[0141] Sorbitan ester 3: Sorbitan trioleate (HLB: 1.8)
[0142] Sorbitan ester 4: Polyoxyethylene (6) sorbitan monooleate
(HLB: 10.0)
[0143] <Antimicrobial or Microbicidal Agent>
[0144] Antimicrobial or microbicidal agent 1: POE lauryl amine
[0145] Antimicrobial or microbicidal agent 2:
Hexahydro-1,3,5-tris(2-hydroxyethyl)-triazine
[0146] Antimicrobial or microbicidal agent 3:
1,2-Benzisothiazolin-3-one
<Rust Inhibitor>
[0147] Rust inhibitor 1: Octylamine
[0148] Rust inhibitor 2: A tetrapropenyisuccinic acid ester
<Antioxidant>
[0149] Antioxidant 1: 2,6-Ditertiarybutviphenol
[0150] Antioxidant 2: N,N'-Dioctyl-p-phenylenediamine
[0151] Antioxidant 3: Distearyl 3,p'-thiodibutylate
<Antiwear Agent>
[0152] Antiwear agent 1: Oleic acid
[0153] Antiwear agent 2: An octylic acid-type phosphoric acid
ester
[0154] Antiwear agent 3: Zinc dibutyl dithiophosphate
<Fluidity Improver>
[0155] Fluidity improver 1: An ethylene-vinyl acetate copolymer
[0156] Fluidity improver 2: A methyl methacrylate-hexadecyl
acrylate copolymer
[0157] Fluidity improver 3: A behenic acid ester of an EO adduct of
triethanolamine
TABLE-US-00010 TABLE 10 Blending Blending Blending Blending
Blending example example example example example 1 2 3 4 5 Fuel oil
Fuel oil base oil 1 Balance Balance Balance Balance Balance base
oil Fuel oil base oil 2 Fuel oil base oil 3 Fuel oil base oil 4
Fuel oil base oil 5 Fuel oil base oil 6 Calcium salicylate Calcium
salicylate- 0.10% diluted product 3 Calcium salicylate- 0.10%
diluted product 9 Calcium salicylate- 0.05% 0.30% diluted product
11 Calcium salicylate- 0.10% diluted product 16 Antimicrobial or
Antimicrobial or 0.01% 0.01% microbicidal agent microbicidal agent
1 Antimicrobial or 0.01% microbicidal agent 2 Antimicrobial or
0.01% 0.01% microbicidal agent 3 Rust inhibitor Rust inhibitor 1
0.005% 0.002% 0.002% Rust inhibitor 2 0.001% 0.002% Antioxidant
Antioxidant 1 0.005% 0.005% Antioxidant 2 0.005% 0.01% Antioxidant
3 0.01% Antiwear agent Antiwear agent 1 0.04% 0.04% 0.04% Antiwear
agent 2 0.1% Antiwear agent 3 0.04% Fluidity improver Fluidity
improver 1 0.10% Fluidity improver 2 0.05% 0.05% Fluidity improver
3 0.02% 0.05% Blending Blending Blending Blending Blending example
example example example example 6 7 8 9 10 Fuel oil Fuel oil base
oil 1 base oil Fuel oil base oil 2 Balance Balance Balance Balance
Balance Fuel oil base oil 3 Fuel oil base oil 4 Fuel oil base oil 5
Fuel oil base oil 6 Calcium salicylate Calcium salicylate- 0.10%
diluted product 3 Calcium salicylate- 0.10% diluted product 9
Calcium salicylate- 0.05% 0.10% diluted product 11 Calcium
salicylate- 0.10% diluted product 16 Antimicrobial or Antimicrobial
or 0.01% 0.005% microbicidal agent microbicidal agent 1
Antimicrobial or 0.01% 0.01% microbicidal agent 2 Antimicrobial or
0.03% microbicidal agent 3 Rust inhibitor Rust inhibitor 1 0.005%
0.002% Rust inhibitor 2 0.001% 0.002% 0.002% Antioxidant
Antioxidant 1 0.005% 0.02% Antioxidant 2 0.01% 0.005% Antioxidant 3
0.005% Antiwear agent Antiwear agent 1 0.04% Antiwear agent 2 0.04%
0.04% 0.04% Antiwear agent 3 0.01% Fluidity improver Fluidity
improver 1 0.05% Fluidity improver 2 0.02% 0.05% Fluidity improver
3 0.05% 0.05%
TABLE-US-00011 TABLE 11 Blending Blending Blending Blending
Blending example example example example example 11 12 13 14 15
Fuel oil Fuel oil base oil 1 base oil Fuel oil base oil 2 Fuel oil
base oil 3 Balance Balance Balance Balance Balance Fuel oil base
oil 4 Fuel oil base oil 5 Fuel oil base oil 6 Calcium salicylate
Calcium salicylate- 0.10% diluted product 3 Calcium salicylate-
0.10% diluted product 9 Calcium salicylate- 0.05% 0.10% diluted
product 11 Calcium salicylate- 0.10% diluted product 16
Antimicrobial or Antimicrobial or 0.01% microbicidal agent
microbicidal agent 1 Antimicrobial or 0.01% 0.01% microbicidal
agent 2 Antimicrobial or 0.005% 0.01% microbicidal agent 3 Rust
inhibitor Rust inhibitor 1 0.005% 0.002% 0.002% Rust inhibitor 2
0.001% 0.002% Antioxidant Antioxidant 1 0.01% 0.005% Antioxidant 2
0.005% 0.01% Antioxidant 3 0.005% Antiwear agent Antiwear agent 1
0.04% 0.04% Antiwear agent 2 0.01% 0.04% Antiwear agent 3 0.04%
Fluidity improver Fluidity improver 1 0.02% Fluidity improver 2
0.10% 0.05% Fluidity improver 3 0.05% 0.05% Blending Blending
Blending Blending Blending example example example example example
16 17 18 19 20 Fuel oil Fuel oil base oil 1 base oil Fuel oil base
oil 2 Fuel oil base oil 3 Fuel oil base oil 4 Balance Balance
Balance Balance Balance Fuel oil base oil 5 Fuel oil base oil 6
Calcium salicylate Calcium salicylate- 0.10% diluted product 3
Calcium salicylate- 0.30% diluted product 9 Calcium salicylate-
0.05% 0.10% diluted product 11 Calcium salicylate- 0.10% diluted
product 16 Antimicrobial or Antimicrobial or 0.01% 0.005%
microbicidal agent microbicidal agent 1 Antimicrobial or 0.01%
microbicidal agent 2 Antimicrobial or 0.01% 0.01% microbicidal
agent 3 Rust inhibitor Rust inhibitor 1 Rust inhibitor 2 0.001%
0.002% 0.002% Antioxidant Antioxidant 1 0.01% Antioxidant 2 0.005%
0.01% Antioxidant 3 0.005% 0.005% Antiwear agent Antiwear agent 1
0.04% 0.04% Antiwear agent 2 0.04% 0.04% Antiwear agent 3 0.01%
Fluidity improver Fluidity improver 1 0.05% Fluidity improver 2
0.05% 0.02% Fluidity improver 3 0.10% 0.05%
TABLE-US-00012 TABLE 12 Blending Blending Blending Blending
Blending example example example example example 21 22 23 24 25
Fuel oil Fuel oil base oil 1 base oil Fuel oil base oil 2 Fuel oil
base oil 3 Fuel oil base oil 4 Fuel oil base oil 5 Balance Balance
Balance Balance Balance Fuel oil base oil 6 Calcium salicylate
Calcium salicylate- 0.10% diluted product 3 Calcium salicylate-
0.10% diluted product 9 Calcium salicylate- 0.05% 0.10% diluted
product 11 Calcium salicylate- 0.30% diluted product 16
Antimicrobial or Antimicrobial or 0.01% 0.01% microbicidal agent
microbicidal agent 1 Antimicrobial or 0.01% 0.01% microbicidal
agent 2 Antimicrobial or 0.005% microbicidal agent 3 Rust inhibitor
Rust inhibitor 1 0.005% 0.002% 0.002% Rust inhibitor 2 0.001%
0.002% Antioxidant Antioxidant 1 0.01% Antioxidant 2 0.005% 0.005%
Antioxidant 3 0.01% 0.005% Antiwear agent Antiwear agent 1 0.04%
0.04% Antiwear agent 2 0.04% 0.01% Antiwear agent 3 0.04% Fluidity
improver Fluidity improver 1 0.10% Fluidity improver 2 0.05% 0.05%
Fluidity improver 3 0.02% 0.05% Blending Blending Blending Blending
Blending example example example example example 26 27 28 29 30
Fuel oil Fuel oil base oil 1 base oil Fuel oil base oil 2 Fuel oil
base oil 3 Fuel oil base oil 4 Fuel oil base oil 5 Fuel oil base
oil 6 Balance Balance Balance Balance Balance Calcium salicylate
Calcium salicylate- 0.01% diluted product 3 Calcium salicylate-
0.01% diluted product 9 Calcium salicylate- 0.005% 0.01% diluted
product 11 Calcium salicylate- 0.01% diluted product 16
Antimicrobial or Antimicrobial or 0.01% microbicidal agent
microbicidal agent 1 Antimicrobial or 0.005% 0.01% microbicidal
agent 2 Antimicrobial or 0.01% 0.01% microbicidal agent 3 Rust
inhibitor Rust inhibitor 1 0.005% 0.002% Rust inhibitor 2 0.001%
0.002% 0.002% Antioxidant Antioxidant 1 0.005% Antioxidant 2 0.005%
0.01% Antioxidant 3 0.005% 0.01% Antiwear agent Antiwear agent 1
0.04% Antiwear agent 2 0.04% 0.04% 0.01% Antiwear agent 3 0.04%
Fluidity improver Fluidity improver 1 0.02% Fluidity improver 2
0.05% 0.10% Fluidity improver 3 0.05% 0.05%
TABLE-US-00013 TABLE 13 Blending Blending Blending Blending
Blending Blending Blending Blending Blending example example
example example example example example example example 31 32 33 34
35 36 37 33 39 Fuel oil Fuel oil base oil 1 Balance base oil Fuel
oil base oil 2 Balance Fuel oil base oil 3 Balance Fuel oil base
oil 4 Balance Balance Fuel oil base oil 5 Balance Balance Fuel oil
base oil 6 Balance Balance Calcium salicylate Calcium salicylate-
0.10% 0.10% diluted product 3 Calcium salicylate- 0.10% 0.30%
diluted product 9 Calcium salicylate- 0.05% 0.10% 0.05% 0.10%
diluted product 11 Calcium salicylate- 0.10% diluted product 16
Sorbitan ester 1 0.50% 0.50% 0.50% 1.0% 0.10% 1.00% 0.10% 1.0%
0.10% Antimicrobial or Antimicrobial or 0.01% 0.01% 0.005%
microbicidal agent microbicidal agent 1 Antimicrobial or 0.01%
0.01% 0.01% microbicidal agent 2 Antimicrobial or 0.005% 0.01%
0.01% microbicidal agent 3 Rust inhibitor Rust inhibitor 1 0.005%
0.002% 0.002% 0.005% Rust inhibitor 2 0.001% 0.002% 0.001% 0.002%
0.002% Antioxidant Antioxidant 1 0.01% 0.005% 0.01% Antioxidant 2
0.005% 0.01% 0.005% 0.01% Antioxidant 3 0.005% 0.005% Antiwear
agent Antiwear agent 1 0.04% 0.04% 0.04% 0.04% Antiwear agent 2
0.01% 0.04% 0.04% Antiwear agent 3 0.04% 0.01% Fluidity improver
Fluidity improver 1 0.02% 0.05% Fluidity improver 2 0.10% 0.05%
0.05% Fluidity improver 3 0.05% 0.05% 0.10% 0.05%
TABLE-US-00014 TABLE 14 Blending Blending Blnding Blending Blending
Blending Blending Blending Blending example example example example
example example example example example 40 41 42 43 44 45 46 47 48
Fuel oil Fuel oil base oil 7 Balance Balance Balance base oil Fuel
oil base oil 8 Balance Balance Balance Fuel oil base oil 9 Balance
Balance Balance Calcium salicylate Calcium salicylate- 0.10% 0.10%
diluted product 3 Calcium salicylate- 0.10% 0.30% diluted product 9
Calcium salicylate- 0.05% 0.10% 0.05% 0.10% diluted product 11
Calcium salicylate- 0.10% diluted product 16 Sorbitan ester
Sorbitan ester 1 Sorbitan ester 2 Sorbitan ester 3 Sorbitan ester 4
Antimicrobial or Antimicrobial or 0.01% 0.01% 0.005% microbicidal
agent microbicidal agent 1 Antimicrobial or 0.01% 0.01% 0.01%
microbicidal agent 2 Antimicrobial or 0.005% 0.01% 0.01%
microbicidal agent 3 Rust inhibitor Rust inhibitor 1 0.005% 0.002%
0.002% 0.005% Rust inhibitor 2 0.001% 0.002% 0.001% 0.002% 0.002%
Antioxidant Antioxidant 1 0.01% 0.005% 0.01% Antioxidant 2 0.005%
0.01% 0.005% 0.01% Antioxidant 3 0.005% 0.005% Antiwear agent
Antiwear agent 1 0.04% 0.04% 0.04% 0.04% Antiwear agent 2 0.01%
0.04% 0.04% Antiwear agent 3 0.04% 0.01% Fluidity improver Fluidity
improver 1 0.02% 0.05% Fluidity improver 2 0.10% 0.05% 0.05%
Fluidity improver 3 0.05% 0.05% 0.10% 0.05%
TABLE-US-00015 TABLE 15 Blending Blending Blending Blending
Blending Blending Blending Blending Blending example example
example example example example example example example 49 50 51 52
53 54 55 56 57 Fuel oil Fuel oil base oil 7 Balance Balance Balance
base oil Fuel oil base oil 8 Balance Balance Balance Fuel oil base
oil 9 Balance Balance Balance Calcium salicylate Calcium
salicylate- 0.10% 0.10% diluted product 3 Calcium salicylate- 0.10%
0.30% diluted product 9 Calcium salicylate- 0.05% 0.10% 0.05% 0.10%
diluted product 11 Calcium salicylate- 0.10% diluted product 16
Sorbitan ester Sorbitan ester 1 0.50% 0.50% 0.50% Sorbitan ester 2
0.50% 0.50% Sorbitan ester 3 0.50% 0.50% Sorbitan ester 4 0.50%
0.50% Antimicrobial or Antimicrobial or 0.01% 0.01% 0.005%
microbicidal agent microbicidal agent 1 Antimicrobial or 0.01%
0.01% 0.01% microbicidal agent 2 Antimicrobial or 0.005% 0.01%
0.01% microbicidal agent 3 Rust inhibitor Rust inhibitor 1 0.005%
0.002% 0.002% 0.005% Rust inhibitor 2 0.001% 0.002% 0.001% 0.002%
0.002% Antioxidant Antioxidant 1 0.01% 0.005% 0.01% Antioxidant 2
0.005% 0.01% 0.005% 0.01% Antioxidant 3 0.005% 0.005% Antiwear
agent Antiwear agent 1 0.04% 0.04% 0.041 0.04% Antiwear agent 2
0.01% 0.04% 0.04% Antiwear agent 3 0.04% 0.01% Fluidity improver
Fluidity improver 1 0.02% 0.05% Fluidity improver 2 0.10% 0.05%
0.05% Fluidity improver 3 0.05% 0.05% 0.10% 0.05%
[0158] According to the present invention, there can be provided
the fuel oil composition excellent in suppression of the deposition
of sludge at the time of its storage or at the time of its use. In
addition, according to the present invention, there can be further
provided the fuel oil composition excellent in combustibility,
storage stability, oxidation stability, wear resistance,
uniformity, safety, environmental compatibility, startability,
low-temperature fluidity, handleability, and the like.
* * * * *