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:
Dec. 19, 1989
Filed:
Nov. 21, 1988
Lloyd E Gardner, Bartlesville, OK (US);
Dennis R Kidd, Dewey, OK (US);
Phillips Petroleum Company, Bartlesville, OK (US);
Abstract
An active hydrotreating catalyst composition is prepared by a process comprising the steps of (a) grinding a spent hydrotreating catalyst containing carbonaceous deposits, (b) mixing the ground spent catalyst with an alumina-containing material (preferably alumina), (c) shaping (preferably extruding) the mixture of ground spent catalyst and alumina-containing material and (d) heating the shaped mixture so as to burn off carbonaceous deposits on the ground spent catalyst component. The thus-prepared active hydrotreating catalyst is used in a process for hydrotreating hydrocarbon containing feed streams (oils) which contain metal impurities.