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. 14, 2025

Filed:

May. 16, 2024
Applicants:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Tda Research, Inc., Golden, CO (US);

Inventors:

Steven Dean Dietz, Denver, CO (US);

Ambalavanan Jayaraman, Highlands Ranch, CO (US);

Gokhan Omer Alptekin, Boulder, CO (US);

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/22 (2006.01); B01D 53/02 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); C01B 32/30 (2017.01); C01B 32/312 (2017.01); C01B 32/318 (2017.01);
U.S. Cl.
CPC ...
B01J 20/22 (2013.01); B01D 53/02 (2013.01); B01J 20/28061 (2013.01); B01J 20/28064 (2013.01); B01J 20/28083 (2013.01); B01J 20/3007 (2013.01); B01J 20/3078 (2013.01); B01D 2253/20 (2013.01); B01D 2253/306 (2013.01); B01D 2253/308 (2013.01); B01D 2257/504 (2013.01); C01B 32/30 (2017.08); C01B 32/312 (2017.08); C01B 32/318 (2017.08);
Abstract

A carbon sorbent for removing carbon dioxide from a gaseous material includes a surface composition including carbon, nitrogen, and oxygen. The nitrogen atoms at the surface of the carbon sorbent may be present in pyridone, pyrrole, and pyridine. The surface of the carbon sorbent may include lactone groups and pyrone groups. The carbon sorbent may have a bulk density greater than about 0.40 grams per cubic centimeter. The carbon sorbent may be formed using amino acids to provide the nitrogen for the carbon sorbent. In addition, the use of processing aids during the formation of the carbon sorbent facilitates the formation of a denser carbon sorbent. Related methods of forming the carbon sorbent and pellets of the carbon sorbent are also disclosed.


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