低浓度甲烷氧化催化剂的研究进展

Research progress in the catalysts for oxidation of low-concentration methane

虽然煤矿乏风(VAM)中甲烷含量很低,但其每年向大气排放的甲烷数量巨大,引起严重的温室效应问题。催化燃烧是处理和有效利用VAM的途径,而其关键是高效催化剂的研发。目前乏风催化燃烧催化剂仍存在催化活性和稳定性低的问题。本文对甲烷燃烧催化剂的种类及助剂的影响进行了综述,预测了新型功能材料在乏风利用中的潜在应用前景。

Although methane concentration in ventilation air methane（VAM） is very low, but methane emission from it is very tremendous, which causes a severe problem of greenhouse effect. Catalytic combustion is an effective way to treat and utilize the lowconcentration methane in VAM, and developing excellent catalysts is the key. Low stability and catalytic activity of catalysts are still the problems. The kinds of catalysts for methane combustion and the effects of promoters on catalysts were reviewed, and potential application prospect of the new functional materials in VAM utilization was predicted.