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.:
Date of Patent:
Dec. 09, 2025
Filed:
Feb. 09, 2021
Osaka Gas Co., Ltd., Osaka, JP;
Hirofumi Ohtsuka, Osaka, JP;
Shimpei Norioka, Osaka, JP;
Osaka Gas Co., Ltd., Osaka, JP;
Abstract
Provided is a first step of causing hydrogen and carbon oxide to react with each other in a presence of a first catalyst to obtain a first fuel gasthat contains 2% to 10% hydrogen by volume after dehydration; and a second step of consuming the hydrogen in the first fuel gasto obtain a second fuel gaswith a reduced hydrogen concentration. The first catalyst includes a methanation catalyst. The second step includes an exothermic reaction that generates heat of 60 kJ or more per mole of hydrogen, and the exothermic reaction is a reaction through which the hydrogen in the first fuel gasand a predetermined reactantare caused to react with each other in a presence of a second catalyst to generate water or a paraffin hydrocarbon with two to four carbon atoms.