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:
Jul. 19, 2011
Filed:
Nov. 30, 2007
Michael Siskin, Westfield, NJ (US);
Ronald D Myers, Calgary, CA;
Roby Bearden, Jr., Baton Rouge, LA (US);
Thomas B. Rauchfuss, Urbana, IL (US);
Michael Siskin, Westfield, NJ (US);
Ronald D Myers, Calgary, CA;
Roby Bearden, Jr., Baton Rouge, LA (US);
Thomas B. Rauchfuss, Urbana, IL (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
The present invention relates to a process for removing sulfur from sulfur-containing hydrocarbon streams utilizing a multi-ring aromatic hydrocarbon complex containing an alkali metal ion. Preferably, the sulfur-containing hydrocarbon stream is comprised of high molecular weight hydrocarbons, such as a low API gravity, high viscosity crude, tar sands bitumen, an oil derived from shale, or heavy refinery intermediate stocks such as atmospheric resids or vacuum resids which are typically difficult to desulfurize and contain relatively high amounts of sulfur. However, intermediate refinery streams and refinery product streams may also be treated by the process of the current invention to achieve very low sulfur concentrations to meet environmental specification for fuels sulfur content.