EXHAUST GAS TREATMENT DEVICE, GAS TURBINE COMBINED CYCLE POWER GENERATION SYSTEM, GAS ENGINE POWER GENERATION SYSTEM, AND EXHAUST GAS TREATMENT METHOD

摘要

This exhaust gas treatment device which is capable of treating the exhaust gas of a gas turbine or a gas engine is provided with a catalyst for exhaust gas treatment, said catalyst being composed of a perovskite composite oxide that contains at least Ag and Dy in the A-site, while containing at least Mn in the B-site.