Process for the production of ultra high octane gasoline, and other fuels from aromatic distillates
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
- Resource Relation:
- Patent File Date: Filed date 4 Dec 1987
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GASOLINE
ANTIKNOCK RATINGS
PETROLEUM DISTILLATES
HYDROGENATION
AROMATICS
CATALYSTS
CHEMICAL COMPOSITION
HYDROCARBONS
NAPHTHALENE
SULFUR CONTENT
CHEMICAL REACTIONS
CONDENSED AROMATICS
DISTILLATES
ENERGY SOURCES
FOSSIL FUELS
FUELS
LIQUID FUELS
ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
020400* - Petroleum- Processing
023000 - Petroleum- Properties & Composition