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. 06, 2012
Filed:
Sep. 30, 2009
Yudong Chen, Garnet Valley, PA (US);
Glenn Fair, Katy, TX (US);
Yudong Chen, Garnet Valley, PA (US);
Glenn Fair, Katy, TX (US);
American Air Liquide, Inc., Fremont, CA (US);
Air Liquide Industrial U.S. LP, Houston, TX (US);
Abstract
The present invention relates to various processes for recovering high purity gaseous hydrogen and high purity gaseous carbon dioxide from the gas stream produced using steam hydrocarbon reforming, especially steam methane reforming, utilizing a Hpressure swing adsorption unit followed by either a COvacuum swing adsorption unit or a COvacuum swing adsorption unit in combination with an additional COpressure swing adsorption unit. By using an uncoupled HPSA and COVSA unit it is possible to produce high purity Hand high purity CO. The present invention further relates to a process for optimizing the recovery of COfrom waste gas streams produced during the hydrogen purification step of a steam hydrocarbon reforming/Hpressure swing adsorption unit utilizing either a COvacuum swing adsorption unit or a COvacuum swing adsorption unit in combination with a COpressure swing adsorption unit. The present invention even further relates to the apparatus necessary to carry out the various processes of the present invention.