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. 25, 2014
Filed:
Dec. 04, 2012
Exxonmobil Research & Engineering Company, Annandale, NJ (US);
Walter David Vann, Glenn Mills, PA (US);
Daniel Paul Leta, Flemington, NJ (US);
Jonathan Martin McConnachie, Annandale, NJ (US);
Richard Alan Demmin, Highland Park, NJ (US);
Douglas Wayne Hissong, Cypress, TX (US);
William C. Baird, Jr., Baton Rouge, LA (US);
Roby Bearden, Jr., Baton Rouge, LA (US);
James Ronald Bielenberg, Houston, TX (US);
Howard Freund, Neshanic Station, NJ (US);
Chris Aaron Wright, Vienna, VA (US);
Michael Francis Raterman, Doylestown, PA (US);
James Ronald Rigby, Kingwood, TX (US);
Brandon Thomas Stone, Houston, TX (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
Hydrocarbon feedstreams are desulfurized using an alkali metal reagent, optionally in the presence of hydrogen. Improved control over reaction conditions can be achieved in part by controlling the particle size of the alkali metal salt and by using multiple desulfurization reactors. The processes herein allow a simple and effective method for removing the majority of coke formed in the alkali metal reagent reactions with the hydrocarbon feedstreams. This makes it cost effective to run such processes at higher severities (which result in higher coke production) thereby resulting in increased amounts of valuable converted hydrocarbon product yields. The process improvements herein may also be used to increase total throughput through a unit due to the ability to effectively manage higher coke content in the reaction products.