Hydrogenation of petroleum liquids using quinone catalysts
AssigneeExxon Research & Engineering Co.
InventorsKarl W. Plumlee, Lonnie W. Vernon
Life of this patent
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Abstract
A process for hydrotreating a petroleum hydrocarbon feed comprising admixing a quinone compound, or compounds, with said hydrocarbon feed, and contacting said admixture with hydrogen at elevated temperature, suitably at temperatures ranging from about 500.degree. F. to about 1050.degree. F., preferably from about 750.degree. F. to about 900.degree. F. The petroleum hydrocarbon feed is characterized generally as comprised of a full boiling range crude, an atmospheric or vacuum residum, an unconventional whole heavy crude, or fractions boiling within the gasoline and mid-distillate ranges.
Claims25
A process for hydrotreating a petroleum hydrocarbon feed comprising admixing with said hydrocarbon feed an added quinone compound, and hydrogenating said admixture at temperature ranging from about 500.degree. F. to about 1050.degree. F.
A process for hydrogenating a petroleum hydrocarbon feed to produce lower boiling liquid products, which comprises:
- (a) contacting in a hydrogenation zone, in the presence of an added quinone compound, said feed with a hydrogen donor solvent at temperature and pressure sufficient to convert the feed to a lower boiling liquid product, (b) separating the product from the hydrogenation zone into fractions inclusive of a liquid solvent fraction which contains at least 30 weight percent hydrogen donor compounds, (c) recycling the hydrogenated liquid solvent mixture to said hydrogenation zone, without hydrogenation of said liquid solvent mixture prior to recycle, and (d) recovering the lower boiling liquid product.
A process for hydrogenating a petroleum hydrocarbon feed to produce lower boiling liquid products, which comprises:
- (a) admixing said petroleum hydrocarbon feed, a non-donor solvent, and a quinone compound, or admixture of quinone compounds, (b) contacting said admixture with molecular hydrogen in a hydrogenation zone at temperature and pressure sufficient to hydrogenate and convert the petroleum hydrocarbon feed to a lower boiling liquid product, (c) separating the admixture into fractions, inclusive of a liquid non-donor solvent fraction, (d) recovering the lower boiling liquid product, and (e) recycling said liquid non-donor solvent fraction to said hydrogenation zone.
Dependencies are inferred from the claim text.