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Nitrogen removal from olefinic naphtha feedstreams to improve hydrodesulfurization versus olefin saturation selectivity App 20050098479 - Jacobs, Peter W. ;   et al. | 2005-05-12 |
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Selective hydroprocessing and mercaptan removal App 20030127362 - Halbert, Thomas R. ;   et al. | 2003-07-10 |
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