采用沉积沉淀法制备了负载型Au/γ-Al2O3催化剂,并进行了BET、SEM等表征.对高浓度甲醇蒸汽进行催化消除反应.探讨了载体粒径、金含量和活化气体(O2、N2、H2)对催化剂性能的影响.结果表明:载体粒径不同的催化剂表面积不同,不同的活化气体对反应产物有很大影响.在O2活化的最佳催化剂Au(2.0%)/γ-Al2O3(0.4-0.5mm)上浓度为86.3g/m3的甲醇的最低全转化温度是170℃,产物中CO2和甲醚的选择性分别为99.7%和0.3%,达到国家安全排放标准.图1,表3,参16. The supported Au / γ-Al2O3 catalyst was prepared by the precipitation method and characterized by BET, SEM, etc. The catalytic elimination reaction of high concentration methanol vapor was carried out. The influences of the particle size, the gold content and the activation gas (O2, N2, H2) on the performance of the catalysts was investigated.The results showed that the surface area of ​​the catalysts with different particle sizes was different, and the different activated gases had a great influence on the reaction products.In the best activated catalyst, Au (2.0%) / γ-Al2O3 -0.5mm) on the methanol concentration of 86.3g / m3 minimum conversion temperature is 170 ℃, the selectivity of CO2 and methyl ether products were 99.7% and 0.3%, reaching the national safety emission standards. Participation 16.