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:
Nov. 09, 1999
Filed:
Sep. 25, 1997
Applicant:
Inventors:
Ravi Kumar, Allentown, PA (US);
Shuguang Deng, Stirling, NJ (US);
Martin Bulow, Basking Ridge, NJ (US);
Frank Fitch, Bedminster, NJ (US);
Adeola Florence Ojo, Chatham, NJ (US);
Craig S Gittleman, North Plainfield, NJ (US);
Assignee:
The BOC Group, Inc., Murray Hill, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
95101 ; 95102 ; 95105 ; 95117 ; 95139 ;
Abstract
Substantially all of the carbon dioxide is removed from a gas containing up to about 1% by volume carbon dioxide by subjecting the gas to a pressure swing adsorption process using as the adsorbent a single layer of zeolite having a silicon to aluminum atomic ratio in the range of 1.5 to 70. The process is particularly suitable for removing substantially all carbon dioxide and water vapor contained in air prior to subjecting the air to cryogenic distillation.