| 摘要 |
PROBLEM TO BE SOLVED: To regenerate highly a sulfur poisoning catalyst without causing sintering by a method wherein the poisoning catalyst is heated with a microwave to regenerate a catalytic activity. SOLUTION: As a sulfur-poisoned catalyst, a mixed gas of methane and helium gas or a mixed gas containing methane, helium, and sulfur dioxide gas is introduced into a steamer 1, and a mixed gas of oxygen gas and helium is further mixed. Then, in order to allow the mixed gas to imitate an exhaust gas temperature after combusion, it is heated at a specific temperature with a heater 3, and the heated mixed gas is passed through an exhaust gas purifying catalyst 4 to purify the exhaust gas. At that time, the exhaust gas purifying catalyst 4 is irradiated with a microwave generated from a magnetron 8 via a waveguide 9 to regenerate catalytic activity. |
