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:
Apr. 13, 2010
Filed:
Mar. 14, 2007
Timothy Christopher Golden, Allentown, PA (US);
Edward Landis Weist, Jr., Macungie, PA (US);
Jeffrey Raymond Hufton, Fogelsville, PA (US);
Paul Anthony Novosat, Emmaus, PA (US);
Timothy Christopher Golden, Allentown, PA (US);
Edward Landis Weist, Jr., Macungie, PA (US);
Jeffrey Raymond Hufton, Fogelsville, PA (US);
Paul Anthony Novosat, Emmaus, PA (US);
Air Products and Chemicals, Inc., Allentown, PA (US);
Abstract
A process for selectively separating hydrogen from at least one more strongly adsorbable component in a plurality of adsorption beds to produce a hydrogen-rich product gas from a low hydrogen concentration feed with a high recovery rate. Each of the plurality of adsorption beds subjected to a repetitive cycle. The process comprises an adsorption step for producing the hydrogen-rich product from a feed gas mixture comprising 5% to 50% hydrogen, at least two pressure equalization by void space gas withdrawal steps, a provide purge step resulting in a first pressure decrease, a blowdown step resulting in a second pressure decrease, a purge step, at least two pressure equalization by void space gas introduction steps, and a repressurization step. The second pressure decrease is at least 2 times greater than the first pressure decrease.