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. 13, 1976
Filed:
Dec. 23, 1975
Jackson Eng, Sarnia, CA;
Noel J Gaspar, Sarnia, CA;
Exxon Research and Engineering Company, Linden, NJ (US);
Abstract
A process for hydrotreating middle distillate fraction petroleum feed stocks wherein hydrogen requirements for the hydrotreater are reduced by first passing the feed stock and steam to a steam hydroconversion zone over a dual function catalyst comprising molybdenum on a chromium supported on ferric oxide support or on a high surface area alumina support. In the steam hydroconversion zone a portion of the feed reacts with the steam to produce hydrogen via a steam reforming reaction. This hydrogen is used in situ to saturate a substantial portion of the olefins and remove some of the sulfur compounds present in the feed stock, thereby partially refining same. The partially refined feed is then passed to a hydrotreating zone for further treatment with greatly reduced hydrogen requirements in said hydrotreating zone.