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:
Aug. 12, 1980
Filed:
Jul. 20, 1977
Applicant:
Inventor:
Govanon Nongbri, Newton, PA (US);
Assignee:
Hydrocarbon Research, Inc., Lawrenceville, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
2082 / ;
Abstract
In the catalytic demetallization of Venezuelan crude oil feedstocks, the rate of catalyst deactivation is reduced by controlling the level of demetallization at start-up. Operating conditions of pressure, temperature and space velocity are controlled to maintain the initial level of demetallization below 75 percent.