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:
Oct. 06, 2020

Filed:

May. 07, 2018
Applicant:

Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);

Inventors:

Lei Ji, Kingwood, TX (US);

Gregory G. Hendrickson, Kingwood, TX (US);

Robert R. McElvain, Kingwood, TX (US);

Steven D. Bridges, Porter, TX (US);

Jennifer F. Drew, Humble, TX (US);

Assignee:

Chevron Phillips Chemical Company LP, The Woodlands, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/047 (2006.01); C01B 21/04 (2006.01); C08F 10/02 (2006.01); B01J 20/10 (2006.01); B01J 20/34 (2006.01);
U.S. Cl.
CPC ...
B01D 53/047 (2013.01); B01J 20/103 (2013.01); B01J 20/3433 (2013.01); B01J 20/3458 (2013.01); C01B 21/045 (2013.01); C08F 10/02 (2013.01); B01D 2253/106 (2013.01); B01D 2256/10 (2013.01); B01D 2259/401 (2013.01); C01B 2210/0014 (2013.01);
Abstract

A system for recovering nitrogen during regeneration of a treater, the system including an adsorbent bed downstream of the treater, wherein the adsorbent bed comprises an adsorbent operable to adsorb at least one impurity from a treater bed regeneration effluent stream comprising nitrogen to provide a nitrogen product having a higher nitrogen purity than a nitrogen purity of the treater bed regeneration effluent stream. A method for recovering nitrogen during regeneration of a treater is also provided.


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