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. 17, 2009
Filed:
Apr. 03, 2006
Applicant:
Ravi Kumar, Williamsville, NY (US);
Inventor:
Ravi Kumar, Williamsville, NY (US);
Assignee:
Praxair Technology, Inc., Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention generally relates to vacuum pressure swing adsorption (VPSA) processes and apparatus to recover carbon dioxide having a purity of approximately ≧80 mole percent from streams containing at least carbon dioxide and hydrogen (e.g., syngas). The feed to the COVPSA can be at super ambient pressure. The COVPSA unit produces two streams, a H-enriched stream and a COproduct stream. The process cycle steps are selected such that there is minimal or no hydrogen losses from the process. The recovered COcan be further upgraded, sequestered or used in applications such as enhanced oil recovery (EOR).