KHW型及CPK型两类新型含稀土的多元复合氧化物催化剂在活性、热稳定性、强度及抗=氧化硫中毒方面均已达到实用指标。和贵金属催化剂相比,其优点为原料组份资源丰富,价格便宜,并可在空燃比较低情况下具有一定活性。KHW型催化剂在高温区的活性和抗二氧化硫中毒能力略优于CPK型催化剂,并且价格极为便宜,但是热稳定性和低氧条件下的活性比CPK型略差. KHW-type and CPK-type two types of rare earth-containing multi-component composite oxide catalyst has reached practical indicators of activity, thermal stability, strength and anti-oxidation of sulfur oxides. Compared with the precious metal catalyst, the advantages of the raw material component are rich resources, low price, and can have certain activity in the low air-fuel ratio. KHW-type catalysts have slightly higher activity and anti-sulfur dioxide poisoning ability than CPK-type catalysts at very high temperatures and at a very low price, but slightly less thermostable and hypoxic than those of CPK.