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.

Date of Patent:
Jun. 16, 2015

Filed:

Aug. 03, 2012
Applicants:

Paul Dean Cobden, Petten, NL;

Hendricus Adrianus Johannes Van Dijk, Petten, NL;

Stéphane Walspurger, Petten, NL;

Inventors:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J 38/06 (2006.01); B01J 20/34 (2006.01); B01D 53/04 (2006.01); C01B 3/52 (2006.01); C01B 3/24 (2006.01); C01B 3/56 (2006.01); C01B 3/02 (2006.01);
U.S. Cl.
CPC ...
B01J 20/3466 (2013.01); B01D 53/04 (2013.01); C01B 3/52 (2013.01); B01D 2256/16 (2013.01); B01D 2257/304 (2013.01); B01D 2257/504 (2013.01); B01D 2258/05 (2013.01); B01D 2259/40086 (2013.01); B01D 2259/401 (2013.01); Y02C 10/08 (2013.01); C01B 3/24 (2013.01); C01B 3/56 (2013.01); C01B 3/02 (2013.01);
Abstract

Two or more acidic gaseous species such as hydrogen sulphide and carbon dioxide from an adsorbent can be selectively removed from a feed gas by contacting the feed gas with an adsorbent for these acidic species, followed by: a. subjecting the adsorbent to a first purging gas, said first purging gas not containing said first acidic gaseous species and containing said second acidic gaseous species at a partial pressure which is at least the partial pressure of said second gaseous species in said feed gas; b. subsequently subjecting the adsorbent to a second purging gas, said second purging gas not containing said first gaseous species and, containing this second gaseous species at a partial pressure which is lower than the partial pressure of said second gaseous species in said feed gas.


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