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:
Apr. 14, 2015
Filed:
Feb. 27, 2012
Daniel P. Leta, Flemington, NJ (US);
Preeti Kamakoti, Summit, NJ (US);
Jack W. Johnson, Clinton, NJ (US);
Peter I. Ravikovitch, Princeton, NJ (US);
Harry Deckman, Clinton, NJ (US);
Daniel P. Leta, Flemington, NJ (US);
Preeti Kamakoti, Summit, NJ (US);
Jack W. Johnson, Clinton, NJ (US);
Peter I. Ravikovitch, Princeton, NJ (US);
Harry Deckman, Clinton, NJ (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
A cyclic process for selectively separating hydrogen sulfide from a gas mixture including COis operated by contacting the gas mixture under sorption conditions with a non-aqueous sorbent comprising a basic non-protogenic nitrogenous compound to react the HS with the basic compound so that the HS can be sorbed by the compound. The compound containing the sorbed HS can then be subjected to desorption conditions by which the HS is desorbed and the sorbent readied for another sorption step in the cycle. The basic nitrogenous compound can be carried on a porous solid sorbent, e.g., a solid oxide such as alumina, silica, silica-alumina, zeolites, or a mesoporous and/or macroporous solid oxide. The process may be operated using a pressure swing, temperature swing, partial pressure swing, purge displacement, or a combination thereof between the sorption and desorption portions of the cycle, preferably in a rapid cycle operation.