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:
Feb. 10, 2004
Filed:
Feb. 20, 1996
Kunihiko Yoshida, Osaka, JP;
Tomio Mimura, Osaka, JP;
Shigeru Shimojo, Osaka, JP;
Mutsunori Karasaki, Tokyo, JP;
Masaki Iijima, Tokyo, JP;
Shigeaki Mitsuoka, Hiroshima-ken, JP;
Other;
Abstract
A process for removing CO from a combustion gas which comprises bringing a combustion gas containing oxygen and CO and a CO absorbent solution into contact at the atmospheric pressure, thereby allowing the CO absorbent solution to absorb CO from the combustion gas, and, in the ensuing step, heating the absorbent solution that has absorbed CO to liberate CO and regenerate the CO absorbent solution, and circulating the regenerated solution for reuse. An aqueous solution of a hindered amine selected from the group consisting of 2-amino-2-methyl-1-propanol (AMP), 2-(ethylamino)-ethanol (EAE), 2-(methylamino)-ethanol (MAE), and 2-(diethylamino)-ethanol (DEAE) is used as the CO absorbent solution, and carbon steel is used in building the members of the equipment that contact the aqueous hindered amine solution. The absorbent solution contains cupric carbonate which is a corrosion inhibitor.