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:
Aug. 12, 1997
Filed:
Oct. 04, 1995
Applicant:
Inventors:
Timothy Christopher Golden, Allentown, PA (US);
Fred William Taylor, Allentown, PA (US);
Andrew Wilson Wang, Alburtis, PA (US);
Mohammed Ali Kalbassi, Surrey, GB;
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
95 96 ; 95 97 ; 95104 ; 95139 ; 95900 ;
Abstract
Pressure swing adsorption to remove CO.sub.2 from a gas stream is conducted using an improved alumina obtained by impregnating a starting alumina with a basic solution having a pH of at least 9, e.g. of a basic compound such as KHCO.sub.3, and drying at a temperature low enough to avoid decomposing the basic compound to a form which adsorbs CO.sub.2 such that the compound does not regenerate under reduced pressure purging.