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:
Feb. 25, 2014
Filed:
Jan. 17, 2008
Ashok Uppal, Sarnia, CA;
Ramesh R. Hemrajani, Millington, NJ (US);
Robert J. Falkiner, Mississauga, CA;
Lawrence J. Lawlor, Camlachie, CA;
Joseph L. Feimer, Brights Grove, CA;
Ashok Uppal, Sarnia, CA;
Ramesh R. Hemrajani, Millington, NJ (US);
Robert J. Falkiner, Mississauga, CA;
Lawrence J. Lawlor, Camlachie, CA;
Joseph L. Feimer, Brights Grove, CA;
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
A process for removing elemental sulfur from liquid hydrocarbon steams such as transportation fuel streams, e.g. gasoline, diesel, kerosene, and jet, by contacting such streams with an immiscible aqueous solution under static mixing conditions. The aqueous solution contains a caustic and an effective amount of a Group I or Group II metal sulfide or polysulfide. The elemental sulfur in the stream is converted to a polysulfide that is not soluble in the hydrocarbon stream but is soluble in the aqueous solution, thus resulting in a hydrocarbon product stream having a substantially lower level of elemental sulfur.