Title:
METHOD FOR MANUFACTURING FUEL GAS
Document Type and Number:
Japanese Patent JP2021138912
Kind Code:
A
Abstract:
To provide a method for obtaining fuel gas reduced in a hydrogen concentration by a simple and economically advantageous method without requiring reaction in an extremely high-pressure condition, and installation of an expensive decarbonation facility when fuel gas having methane as the main component is manufactured by subjecting hydrogen and carbon oxide to methanizing reaction in the presence of a methanizing catalyst.SOLUTION: A method for manufacturing fuel gas includes steps of: a methanizing step of reacting hydrogen with carbon oxide in the presence of a methanizing catalyst so as to obtain fuel gas 2 containing 2% or more and 10% or less of hydrogen on the basis of volume after dehydration; and a selective oxidation step of adding oxygen 3 to the fuel gas 2 obtained in the methanizing step, and reacting the hydrogen with the oxygen 3 in the fuel gas 2 in the presence of a selective oxidation catalyst capable of selectively oxidizing the hydrogen.SELECTED DRAWING: Figure 1
Inventors:
OTSUKA HIROFUMI
NORIOKA SHIMPEI
NORIOKA SHIMPEI
Application Number:
JP2020205082A
Publication Date:
September 16, 2021
Filing Date:
December 10, 2020
Export Citation:
Assignee:
OSAKA GAS CO LTD
International Classes:
C10L3/10
Attorney, Agent or Firm:
Patent business corporation r&c