Process for the production of ultra high octane gasoline, and other fuels from aromatic distillates

Patent · Tue May 09 00:00:00 EDT 1989

OSTI ID:5869419

Sawyer, W H; Hudson, C W

A process is described for the production of high octane gasoline, or high octane gasoline blending components from a sulfur-containing feed rich in molecular species characterized as fused two-ring aromatic hydrocarbons, inclusive of naphthalenes, boiling within a range of from about 400/sup 0/F to about 600/sup 0/F, which comprises: hydrogenating the feed, in a first reaction zone, over a hydrogenation catalyst at hydrogenation conditions sufficient to desulfurize the feed and saturate one ring of the fused two-ring aromatic hydrocarbons but insufficient to saturate the second ring of the molecular species, to form tetralins, and then contacting, in a second reaction zone, the hydrogenated product as a feed, in the presence of hydrogen, over a catalyst comprised of elemental iron and one or more alkali or alkaline-earth metals components at temperature ranging from about 437/sup 0/F (225/sup 0/C) to about 806/sup 0/F (430/sup 0/C), and hydrogen partial pressure ranging to about 1000 psig to selectivity hydrogenate and crack the previously hydrogenated fused two-ring aromatic hydrocarbons to form alkylbenzenes, producing a product suitable per se as high octane gasoline, or gasoline blending components.

• Assignee: Exxon Research and Engineering Co., Florham Park, NJ
• Patent Number(s): US 4828675
• OSTI ID: 5869419
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
023000 -- Petroleum-- Properties & Composition
ANTIKNOCK RATINGS
AROMATICS
CATALYSTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CONDENSED AROMATICS
DISTILLATES
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASOLINE
HYDROCARBONS
HYDROGENATION
LIQUID FUELS
NAPHTHALENE
ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
SULFUR CONTENT