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. 02, 1988
Filed:
Sep. 01, 1987
Applicant:
Inventors:
Jorg Stocker, St. Stevens-Woluwe, BE;
Michael Whysall, Wilrijk, BE;
Assignee:
Union Carbide Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55 21 ; 55 26 ; 55163 ; 55179 ;
Abstract
The present invention provides a method and apparatus for automatically controlling product repressurization in a pressure swing adsorption (PSA) process. According to the invention the same valve employed for withdrawing product from a bed during adsorption is employed to feed product gas to that bed during product repressurization. This enables the elimination of several valves, including a system-dependent valve, thereby improving system reliability. The same controllable valve may also be used to control the pressure in the PSA system.