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:
May. 26, 2015

Filed:

Jun. 18, 2013
Applicant:

Guild Associates, Inc., Dublin, OH (US);

Inventors:

Michael J. Mitariten, Pittstown, NJ (US);

Roy Brown, Dublin, OH (US);

Wayne Ballantyne, Columbus, OH (US);

Joseph Rossin, Columbus, OH (US);

Michael Knapke, Columbus, OH (US);

Assignee:

Guild Associates, Dublin, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/04 (2006.01);
U.S. Cl.
CPC ...
B01D 53/04 (2013.01); B01D 2258/05 (2013.01); B01D 2253/30 (2013.01); B01D 2257/55 (2013.01); B01D 53/0462 (2013.01); B01D 2256/245 (2013.01);
Abstract

A natural gas-containing stream such as biogas from landfills and sewage treatment plants is freed of siloxane contaminants by passing the biogas through a bed containing an adsorbent having a neutral surface, which adsorbs the siloxanes. When the bed of neutral adsorbent is filled to capacity, the adsorbent bed is heated to remove the siloxanes and regenerate the bed. The neutral adsorbent reduces disadvantageous reactions between the adsorbent and siloxane and other impurities in the natural gas-containing stream.


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