消除甲醇、甲苯等有机蒸汽对大气的污染,前人已有许多工作。其中催化燃烧法所用催化剂大体分为贱金属氧化物和贵金属两类,比较成熟的是贵金属催化剂,但由于价格贵,均以微量贵金属负载在某些载体上以减少贵金属用量。目前所用载体大多为蜂窝陶瓷等,这类载体虽具有表面积较大、气 Elimination of methanol, toluene and other organic steam pollution of the atmosphere, the predecessor has a lot of work. Among them, the catalysts used in the catalytic combustion method are roughly classified into base metal oxides and noble metals. The more mature catalysts are precious metals, but due to the high price, precious metals are loaded on some carriers to reduce the amount of precious metals. At present, most of the carriers used are honeycomb ceramics, etc. Although such carriers have a large surface area and gas