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

摘要

This catalyst for methanation reaction is used for the purpose of methanizing carbon dioxide through a reaction with hydrogen. This catalyst for methanation reaction comprises: a stabilized zirconia carrier having a crystal structure of a tetragonal system, in which Ca and Ni are taken; and Ni in a metal state, which is supported by the stabilized zirconia carrier. This catalyst for methanation reaction contains, in atom% based on metals in elemental state, (A) 6-62 atom% of Zr that constitutes the stabilized zirconia carrier, (B) 1-20 atom% of Ca taken in the crystal structure and (C) 30-90 atom% of Ni taken in the crystal structure and Ni supported by the stabilized zirconia carrier in total, with the atomic ratio of Ca/(Zr + Ca) being 0.14-0.25.