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. 09, 2021
Filed:
May. 24, 2019
Applicant:
Air Products and Chemicals, Inc., Allentown, PA (US);
Inventors:
Elizabeth M. D'Addio, Fogelsville, PA (US);
Christopher H. Wood, Schnecksville, PA (US);
Quan Min Shao, Allentown, PA (US);
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/047 (2006.01); C01B 3/56 (2006.01);
U.S. Cl.
CPC ...
B01D 53/047 (2013.01); C01B 3/56 (2013.01); B01D 2256/16 (2013.01); B01D 2257/502 (2013.01); B01D 2257/504 (2013.01); B01D 2257/7025 (2013.01); B01D 2259/4002 (2013.01); B01D 2259/40009 (2013.01); B01D 2259/40028 (2013.01); B01D 2259/40035 (2013.01); B01D 2259/40043 (2013.01); B01D 2259/4062 (2013.01); B01D 2259/40064 (2013.01); B01D 2259/4065 (2013.01); B01D 2259/4067 (2013.01); B01D 2259/40079 (2013.01); B01D 2259/40081 (2013.01); C01B 2203/043 (2013.01); C01B 2203/047 (2013.01); C01B 2203/048 (2013.01); C01B 2203/0475 (2013.01);
Abstract
Pressure swing adsorption process for reducing fluctuations in the flow rate of tail gas from the adsorption unit. The flow rate of the stream of blowdown gas is regulated responsive signals from a sensor measuring the pressure and/or flow rate of the tail gas comprising the blowdown gas and purge gas effluent before the tail gas is introduced into a surge vessel.