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:
Mar. 26, 2013
Filed:
Dec. 14, 2010
Jorge L. Soto, Centreville, VA (US);
Daniel P. Leta, Flemington, NJ (US);
LU Han, Herndon, VA (US);
Walter D. Vann, Glen Mills, PA (US);
Mark A. Greaney, Upper Black Eddy, PA (US);
James R. Bielenberg, Easton, PA (US);
Paul D. Oldenburg, Easton, PA (US);
Jonathan M. Mcconnachie, Annandale, NJ (US);
Leo D. Brown, Baton Rouge, LA (US);
William C. Baird, Jr., Baton Rouge, LA (US);
Roby Bearden, Jr., Baton Rouge, LA (US);
Jorge L. Soto, Centreville, VA (US);
Daniel P. Leta, Flemington, NJ (US);
Lu Han, Herndon, VA (US);
Walter D. Vann, Glen Mills, PA (US);
Mark A. Greaney, Upper Black Eddy, PA (US);
James R. Bielenberg, Easton, PA (US);
Paul D. Oldenburg, Easton, PA (US);
Jonathan M. McConnachie, Annandale, NJ (US);
Leo D. Brown, Baton Rouge, LA (US);
William C. Baird, Jr., Baton Rouge, LA (US);
Roby Bearden, Jr., Baton Rouge, LA (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
After desulfurizing a hydrocarbon feedstream using an alkali metal reagent, the hydrocarbon feedstream can include particles of spent alkali metal salts. The spent alkali metal salts can be separated from the hydrocarbon feedstream and regenerated to form an alkali metal reagent, such as a alkali hydroxide or alkali sulfide. The regeneration process can pass through an intermediate stage of forming an alkali carbonate by successive reactions with carbon dioxide and calcium oxide. The calcium oxide can also be regenerated.