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:
Apr. 20, 2021

Filed:

Apr. 18, 2019
Applicant:

Regents of the University of Minnesota, Minneapolis, MN (US);

Inventors:

Kenneth J. Valentas, Minneapolis, MN (US);

Gabriel Gerner, Minneapolis, MN (US);

Scott Plewka, Minneapolis, MN (US);

Zachary Pursell, Minneapolis, MN (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/58 (2006.01); B01J 20/22 (2006.01); B01J 20/30 (2006.01); C01C 1/12 (2006.01);
U.S. Cl.
CPC ...
B01J 20/22 (2013.01); B01D 53/58 (2013.01); B01J 20/3078 (2013.01); C01C 1/12 (2013.01);
Abstract

Disclosed herein are methods of controlling the amount of carboxyl groups attached to a hydrochar, the methods including subjecting a composition that includes a stover composition to hydrothermal carbonization to form a hydrochar, wherein the amount of carboxyl groups attached to the hydrochar can be controlled by the amount of lipids in the composition. Methods of removing ammonia from a gas using disclosed hydrochars and the hydrochars themselves are also disclosed.


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