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:
Jan. 22, 1991
Filed:
Aug. 23, 1989
Applicant:
Inventors:
Assignee:
Seitetsu Kagaku Co., Ltd., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55 26 ; 55 31 ; 55 33 ; 55 62 ; 55 68 ; 55 74 ; 55 75 ;
Abstract
The present invention relates to a process for separating and recovering a high purity carbonic acid gas from a wet mixed gas containing carbonic acid gas which comprises using a pressure swing adsorption and separation apparatus composed of an adsorber packed with alumina gel and zeolite and carrying out the steps of adsorption, washing, desorption and pressurization.