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. 24, 2022
Filed:
Dec. 27, 2017
Renaissance Energy Research Corporation, Kyoto, JP;
Japan Aerospace Exploration Agency, Tokyo, JP;
Osamu Okada, Kyoto, JP;
Masaaki Teramoto, Kyoto, JP;
Tamotsu Nonouchi, Kyoto, JP;
Nobuaki Hanai, Kyoto, JP;
Junya Miyata, Kyoto, JP;
Yasato Kiyohara, Kyoto, JP;
Masato Sakurai, Tokyo, JP;
Shinichi Furukawa, Osaka, JP;
Renaissance Energy Research Corporation, Kyoto, JP;
Japan Aerospace Exploration Agency, Tokyo, JP;
Abstract
Provided is a method for removing COcomprising: supplying a gas to be processed containing CO, Nand Oto a feed side of a CO/Oselective permeation membrane within a temperature range of 15° C. to 50° C.; generating water vapor and supplying the water vapor to the CO/Oselective permeation membrane; selectively removing COfrom the gas to be processed by permeating COin the gas to be processed from the feed side to a permeate side of the COselective permeation membrane selectively to Oand Nin the gas to be processed; and using a COfacilitated transport membrane having CO/Oselectivity and CO/Nselectivity within the temperature range as the COselective permeation membrane, the COfacilitated transport membrane being configured with a hydrophilic polymer containing an amino acid and a deprotonating agent for preventing protonation of an amino group of the amino acid supported by a porous membrane, wherein a COconcentration in the gas to be processed is 3 mol % or less on a dry basis.