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. 19, 2008
Filed:
Apr. 08, 2005
William Paul Schmidt, Allentown, PA (US);
Daniel Patrick Zwilling, Drexel Hill, PA (US);
Andrew David Wright, Crewe, GB;
Mohammad Ali Kalbassi, Weybridge, GB;
Christopher James Raiswell, Crewe, GB;
William Paul Schmidt, Allentown, PA (US);
Daniel Patrick Zwilling, Drexel Hill, PA (US);
Andrew David Wright, Crewe, GB;
Mohammad Ali Kalbassi, Weybridge, GB;
Christopher James Raiswell, Crewe, GB;
Air Products and Chemicals, Inc., Allentwon, PA (US);
Abstract
An improved control scheme is set forth for an adsorption process that removes water and carbon dioxide (CO) from a feed gas using a hybrid of both temperature swing (i.e. TSA) and pressure swing (PSA) to regenerate the adsorbent. The control scheme comprises adjusting the quantity of heat to be provided by the regeneration gas as a function of temperature data taken within a strategic portion of the water selective adsorbent zone. The strategic portion corresponds to the location for the desired transition from regeneration by temperature swing, to regeneration by pressure swing. In a preferred embodiment of the present invention, said quantity of regeneration heat is also adjusted as a function of the water content of the feed gas.