| 摘要 |
PROBLEM TO BE SOLVED: To provide a tar cracking method and tar cracking equipment capable of suppressing degradation in the catalytic activity of a metal-based catalyst.SOLUTION: A tar cracking method comprises cracking a tar component included in a gasification gas that is a combustible gas by a metal-based catalyst, and the method includes an oxidizing agent supply step of supplying a low oxygen concentration oxidizing agent having an oxygen concentration of 3% or less to a surface of the metal-based catalyst. The tar cracking method may include a low oxygen concentration oxidizing agent producing step for producing the low oxygen concentration oxidizing agent by supplying an oxidizing agent to the gasification gas to allow the oxidizing agent to be combusted and consumed. |
