CATALYTIC MATERIAL FOR GAS TURBINE COMBUSTOR

摘要

PURPOSE:To obtain the titled catalytic material excellent in low-temp. ignitability and high-temp. durability by depositing noble metal and rare earth element on an alumina carrier and specifying a ratio of deposited amount of noble metal and rare earth element. CONSTITUTION:A catalytic material for gas turbine combustion is obtained by depositing noble metal and rare earth element on an alumina carrier in such proportion that deposited amount of noble metal to deposited amount of rare earth element is >=1. Pd and Pt as noble metal and La as rare earth element are preferably deposited on the alumina carrier. At this time, as each amount, Pd is >=20wt% for the alumina carrier and Pt is 0.1-0.5 times weight for Pd, and La is 5-20wt% for the alumina carrier. La is firstly deposited on the alumina carrier and thereafter Pd and Pt are deposited thereon. In the catalytic material obtained in such a way, low-temp. ignitability and high-temp. durability can be more enhanced. This catalytic material is used packed in a catalyst packing region 8 of a gas turbine combustor.