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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.

Patent No.:

US 10343147 B1

PDFFull Text
Date of Patent:
Jul. 09, 2019

Filed:

Jul. 16, 2015

Methanation reaction catalyst, method for producing methanation reaction catalyst and method for producing methane

Applicant:

Hitachi Zosen Corporation, Osaka, JP;

Inventors:

Koji Hashimoto, Miyagi, JP;

Hiroyuki Takano, Chiba, JP;

Kouichi Izumiya, Chiba, JP;

Naokazu Kumagai, Chiba, JP;

Assignee:

HITACHI ZOSEN CORPORATION, Osaka, JP;

Attorneys:

Edwards Neils, LLC

Jean C. Edwards, Esq.

Primary Examiner:

Medhanit W Bahta

Int. Cl.
CPC ...
C07C 1/12 (2006.01); C07C 9/04 (2006.01); B01J 23/755 (2006.01); B01J 37/16 (2006.01); B01J 23/78 (2006.01); B01J 23/02 (2006.01); B01J 35/00 (2006.01); B01J 37/04 (2006.01); B01J 37/08 (2006.01); B01J 37/18 (2006.01); B01J 23/00 (2006.01); C07B 61/00 (2006.01); B01J 35/02 (2006.01); B01J 37/00 (2006.01);
U.S. Cl.
CPC ...
B01J 23/755 (2013.01); B01J 23/002 (2013.01); B01J 23/02 (2013.01); B01J 23/78 (2013.01); B01J 35/002 (2013.01); B01J 35/0006 (2013.01); B01J 37/04 (2013.01); B01J 37/088 (2013.01); B01J 37/16 (2013.01); B01J 37/18 (2013.01); C07C 1/12 (2013.01); B01J 35/023 (2013.01); B01J 37/009 (2013.01); B01J 37/0009 (2013.01); B01J 37/0036 (2013.01); B01J 2523/00 (2013.01); C07B 61/00 (2013.01); C07C 2521/06 (2013.01); C07C 2523/02 (2013.01); C07C 2523/755 (2013.01); C07C 2523/78 (2013.01);
Abstract

A methanation reaction catalyst for methanation by allowing carbon dioxide to react with hydrogen, wherein the methanation reaction catalyst includes a stabilized zirconia support having a tetragonal crystal structure and in which Ca and Ni are incorporated in the crystal structure, and Ni in the metal state supported on the stabilized zirconia support, includes the following in atomic % based on metals in the element state, A) Zr composing the stabilized zirconia support: 6 to 62 atomic %, B) Ca incorporated in the crystal structure: 1 to 20 atomic %, and C) a total of Ni incorporated in the crystal structure and Ni supported on the stabilized zirconia support: 30 to 90 atomic %, and the atomic ratio of Ca/(Zr+Ca) is 0.14 to 0.25.

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