METHANATION REACTOR, AND METHOD FOR PRODUCING METHANE-CONTAINING GAS

Japanese Patent JP2023103557

A

To provide a methanation reactor which uniformizes reaction with a simple configuration, and can suppress catalyst degradation.SOLUTION: A methanation reactor that is a methanation reactor for producing methane-containing gas by bringing raw material gas containing hydrogen and carbon dioxide into contact with a catalyst includes a double pipe having an inner pipe and an outer pipe, and a catalyst arranged between the outer peripheral surface of the inner pipe and the inner peripheral surface of the outer pipe, wherein the inner pipe includes a supply port of the raw material gas arranged on one end in an axial direction, and a plurality of communication ports which are arranged in a plurality of places at predetermined intervals in the axial direction of the inner pipe, communicate between the inner peripheral surface and the outer peripheral surface of the inner pipe, and are opened to the inside of the outer pipe, and the methanation reactor includes an adjusting device for adjusting the opening degrees of the plurality of communication ports.SELECTED DRAWING: Figure 1

ONODERA TAIGO
SUGIMASA MASATOSHI
KOSAKAI MASAYA

JP2022004145A

July 27, 2023

January 14, 2022

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HITACHI LTD

B01J8/06; B01J8/00; C07C1/12; C07C9/04

Patent Attorney Corporation Hiraki International Patent Office

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