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:
Mar. 10, 2015
Filed:
Mar. 10, 2011
Applicants:
Takahisa Utaki, Kyotanabe, JP;
Tamotsu Kotani, Kizugawa, JP;
Inventors:
Takahisa Utaki, Kyotanabe, JP;
Tamotsu Kotani, Kizugawa, JP;
Assignee:
Osaka Gas Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/047 (2006.01); C10L 3/10 (2006.01); B01D 53/053 (2006.01);
U.S. Cl.
CPC ...
C10L 3/101 (2013.01); B01D 2259/40037 (2013.01); B01D 53/047 (2013.01); B01D 53/053 (2013.01); B01D 2256/24 (2013.01); B01D 2259/40007 (2013.01); B01D 2259/402 (2013.01);
Abstract
Disclosed is a method for enriching combustible gas, which suppresses the deterioration and pulverization of an adsorbent without extending a period for pressure equalization. The pressure equalization is effected by opening a pressure equalization passage opening/closing valve incorporated in a pressure equalization passage, after completion of adsorption in a first adsorption tower and after completion of desorption in a second adsorption tower connected to the first adsorption tower via the pressure equalization passage.