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:
Nov. 20, 2007
Filed:
Apr. 28, 2003
Edward S. Ellis, Falls Church, VA (US);
Richard A. Demmin, Highland Park, NJ (US);
John P. Greeley, Annandale, NJ (US);
Gary B. Mcvicker, Califon, NJ (US);
Bruce R. Cook, Stewartsville, NJ (US);
Garland B. Brignac, Clinton, LA (US);
Thomas R. Halbert, Baton Rouge, LA (US);
Edward S. Ellis, Falls Church, VA (US);
Richard A. Demmin, Highland Park, NJ (US);
John P. Greeley, Annandale, NJ (US);
Gary B. McVicker, Califon, NJ (US);
Bruce R. Cook, Stewartsville, NJ (US);
Garland B. Brignac, Clinton, LA (US);
Thomas R. Halbert, Baton Rouge, LA (US);
Exxonmobil Research and Engineering Company, Annandale, NJ (US);
Abstract
A process for the selective hydrodesulfurization of naphtha streams containing a substantial amount of olefins and organically bound sulfur. The naphtha stream is selectively hydrodesulfurized by passing it through a first reaction zone containing a bed of a first hydrodesulfurization catalyst, then passing the resulting product stream through a second reaction zone containing a bed of a second hydrodesulfurization catalyst, which second hydrodesulfurization catalyst contains a lower level of catalytic metals than the first hydrodesulfurization catalyst.