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:
Nov. 20, 2018

Filed:

Aug. 13, 2009
Applicants:

Mark Julian Roberts, Kempton, PA (US);

Adam Adrian Brostow, Emmaus, PA (US);

Inventors:

Mark Julian Roberts, Kempton, PA (US);

Adam Adrian Brostow, Emmaus, PA (US);

Assignee:

Air Products and Chemicals, Inc., Allentown, PA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25J 1/00 (2006.01); F25J 1/02 (2006.01);
U.S. Cl.
CPC ...
F25J 1/0022 (2013.01); F25J 1/005 (2013.01); F25J 1/0072 (2013.01); F25J 1/0204 (2013.01); F25J 1/025 (2013.01); F25J 1/0265 (2013.01); F25J 1/0279 (2013.01); F25J 2210/06 (2013.01); F25J 2220/44 (2013.01); F25J 2220/62 (2013.01); F25J 2270/16 (2013.01);
Abstract

A system and method for removal of a contaminant comprising removing a liquefied portion of a refrigerant stream comprising nitrogen from a reverse Brayton cycle refrigerant system, introducing the liquefied refrigerant stream into a contaminant removal column as a reflux stream removing a contaminant stream from the bottom of the contaminant removal column, removing a vapor stream enriched in nitrogen from the top of the contaminant removal column, and introducing the vapor stream enriched in nitrogen back into the reverse Brayton cycle refrigerant system.


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