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. 09, 2016
Filed:
Jan. 07, 2015
University of Kentucky Research Foundation, Lexington, KY (US);
Kunlei Liu, Lexington, KY (US);
Reynolds A. Frimpong, Lexington, KY (US);
Kun Liu, Lexington, KY (US);
THE UNIVERSITY OF KENTUCKY RESEARCH FOUNDATION, Lexington, KY (US);
Abstract
A process for recovery of COfrom a post-combustion gas includes pre-concentrating a COcomponent of the post-combustion flue gas by passing the post-combustion gas through a CO-selective membrane module to provide a CO-enriched permeate stream and a CO-lean reject stream. Next, in a COabsorber, both the CO-enriched permeate stream and COlean reject stream, fed to separate feed locations on the COabsorber, are contacted with a scrubbing solvent to absorb COand provide a carbon-rich scrubbing solvent. Finally, absorbed COis stripped from the carbon-rich scrubbing solvent by a two-stage COstripping system. The CO-selective membrane may be a high flux, low pressure drop, low COselectivity membrane. The two stage stripping system includes a primary COstripping column for stripping COfrom the carbon-rich scrubbing solvent exiting the COabsorber, and a secondary COstripping column for stripping COfrom a carbon-lean scrubbing solvent exiting the primary COstripping column. Apparatus for COremoval from post-combustion gases in a pulverized coal power plant incorporating the described processes are described.