| 摘要 |
To provide a method of stabilizing a catalyst enabling the stabilization to be completed in a very short period of time by means of a simple process, particularly a method of stabilizing a reduced Ni-containing catalyst. [Solution]A method of stabilizing a reduced Ni-containing catalyst, where gas in which three kinds of 02, 1120, and CO2 coexist, or gas in which four kinds of 02, 1120, CO2, and inert gas coexist is introduced into the reduced Ni-containing catalyst at a temperature of not less than 0.1° C., and of less than 100° C. will make it possible to prepare a stable catalyst even in the air.
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