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. 03, 1983
Filed:
Jun. 29, 1981
Applicant:
Inventor:
Christopher W Kuehler, Larkspur, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208 10 ;
Abstract
A liquid hydrocarbonaceous feedstock containing asphaltenes and optionally solids is hydroprocessed by passing the feedstock through a catalytic reaction zone in the presence of a catalyst bed containing a solid hydroprocessing catalyst under hydroprocessing conditions to produce a hydrocarbonaceous effluent containing solids. Plugging of the catalyst bed is avoided by controlling the severity of the hydroprocessing conditions in the catalytic reaction zone to maintain the aliphatic hydrogen concentration of the liquid effluent sufficiently low to prevent substantial precipitation of asphaltenes within the catalytic reaction zone.