The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 1989
Filed:
Dec. 07, 1987
Willard H Sawyer, Baton Rouge, LA (US);
Carl W Hudson, Baton Rouge, LA (US);
Robert H Waghorne, Baton Rouge, LA (US);
Exxon Research and Engineering Company, Florham Park, NJ (US);
Abstract
A process for the production of high octane gasoline, or high octane gasoline blending components from a sulfur and nitrogen-containing feed composition of wide boiling range rich in fused multi-ring aromatic hydrocarbons containing two, and three or more rings in the molecule. The feed is first hydrogenated to desulfurize, denitrogenate and saturate one ring of the two-ring molecular species, but insufficient to saturate the second ring of said molecular species. The product, as a feed, is then hydrocracked to crack fused multi-ring aromatic hydrocarbons containing three or more rings to the molecule, and to produce lower molecular weight, lower boiling components. The product of the hydrocracker is then split into blends which include (i) a blend rich in fused two-ring aromatic hydrocarbons and (ii) a blend rich in fused multi-ring aromatic hydrocarbons containing three or more rings to the molecule. Blend (i) is selectively hydrogenated and cracked over a catalyst comprised of elemental iron and one or more alkali or alkaline-earth metals to produce gasoline or gasoline blending components, and blend (ii) is hydrocracked to produce gasoline or gasoline blending components.