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:
Aug. 16, 2022
Filed:
Jun. 18, 2020
Research Triangle Institute, Research Triangle Park, NC (US);
Aravind V. Rayer Rabindran, Morrisville, NC (US);
Vijay Gupta, Cary, NC (US);
Paul D. Mobley, Raleigh, NC (US);
Jak Tanthana, Durham, NC (US);
Shaojun Zhou, Cary, NC (US);
Finn Andrew Tobiesen, Trondheim, NO;
Thor Mejdell, Trondheim, NO;
Andreas Grimstvedt, Trondheim, NO;
Geir Haugen, Trondheim, NO;
Research Triangle Institute, Research Triangle Park, NC (US);
Abstract
A method with corresponding systems for reducing emission of amines to the atmosphere. The method includes a a) introducing a gas containing COinto an absorber; b) flowing the flue gas through an absorber having an absorbent with a water-lean solution having less than 50% water and one or more amines, with the absorbent capturing the COand forming a reduced COcontent gas having a baseline COcontent; and c) washing the reduced COcontent gas in a wash column with a wash solution comprising carbonic acid formed by addition of gaseous COinto the wash solution. In this method, the washing removes the amines from the reduced COcontent gas and produces a reduced amine content gas exiting from the wash column.