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:
May. 19, 2015
Filed:
Sep. 09, 2011
Lisa S. Baugh, Ringoes, NJ (US);
Pavel Kortunov, Flemington, NJ (US);
David C. Calabro, Bridgewater, NJ (US);
Michael Siskin, Westfield, NJ (US);
Lisa S. Baugh, Ringoes, NJ (US);
Pavel Kortunov, Flemington, NJ (US);
David C. Calabro, Bridgewater, NJ (US);
Michael Siskin, Westfield, NJ (US);
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US);
Abstract
A COamine scrubbing process uses an absorbent mixture consisting of an alkanolamine COsorbent in combination with a non-nucleophilic base. The alkanolamine has oxygen and nitrogen sites capable of nucleophilic attack at the COcarbon atom. The nucleophilic addition is promoted in the presence of the non-nucleophilic, relatively stronger base, acting as a proton acceptor. The non-nucleophilic base promoter, which may also act as a solvent for the alkanolamine, can promote reaction with the COat each of the reactive hydroxyl and nucleophilic amine group(s) of the alkanolamines. In the case of primary amino alkanolamines the COmay be taken up by a double carboxylation reaction in which two moles of COare taken up by the reacting primary amine groups.