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. 05, 2002
Filed:
Dec. 29, 2000
Applicant:
Inventors:
Tu Cam Nguyen, Tonawanda, NY (US);
Thomas John Bergman, Jr., Clarence Center, NY (US);
Assignee:
Praxair Technology, Inc., Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 1/00 ;
U.S. Cl.
CPC ...
F25J 1/00 ;
Abstract
A process and system for producing a high purity argon product with high argon recovery from an air feed stream utilizing a low ratio argon distillation column, a high ratio argon distillation column and a vacuum pressure swing adsorption. unit in combination with a cryogenic air separation plant. The process and system avoids the necessity for an ultrastaged upper column in the cryogenic air separator plant.