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:
Nov. 18, 2014
Filed:
Sep. 10, 2013
James C. Fisher, Morgantown, WV (US);
Ranjani V. Siriwardane, Morgantown, WV (US);
David A. Berry, Mount Morris, PA (US);
George A. Richards, Morgantown, WV (US);
James C. Fisher, Morgantown, WV (US);
Ranjani V. Siriwardane, Morgantown, WV (US);
David A. Berry, Mount Morris, PA (US);
George A. Richards, Morgantown, WV (US);
U.S. Department of Energy, Washington, DC (US);
Abstract
A method for the removal of HO and COfrom a gaseous stream comprising HO and CO, such as a flue gas. The method initially utilizes an HO removal sorbent to remove some portion of the HO, producing a dry gaseous stream and a wet HO removal sorbent. The dry gaseous stream is subsequently contacted with a COremoval sorbent to remove some portion of the CO, generating a dry COreduced stream and a loaded COremoval sorbent. The loaded COremoval sorbent is subsequently heated to produce a heated COstream. The wet HO removal sorbent and the dry COreduced stream are contacted in a first regeneration stage, generating a partially regenerated HO removal sorbent, and the partially regenerated HO removal sorbent and the heated COstream are subsequently contacted in a second regeneration stage. The first and second stage regeneration typically act to retain an initial monolayer of moisture on the various removal sorbents and only remove moisture layers bound to the initial monolayer, allowing for relatively low temperature and pressure operation. Generally the applicable HO sorption/desorption processes may be conducted at temperatures less than about 70° C. and pressures less than 1.5 atmospheres, with certain operations conducted at temperatures less than about 50° C.