Catalytic Decomposition of Benzene on Supported Nanometer Noble Metal Catalysts
Regenerative catalytic oxidation of benzene was carried out on lab-made and commercial supported nanometer noble metal catalysts in a fixed bed reactor. The experimental results indicated that the degradation rate of benzene increased obviously with increasing of reaction temperature from 250 to 500 ℃ for benzene catalytic combustion on all catalysts, while it decreased when the space velocity increased. The catalytic activity of Fe/Au-γAl2O3I, II and III catalysts was better than the others including the commercial catalysts. As it turned out, when the amount of Fe/Au-γAl2O3I, II and III supported catalyst is 68.5 mL, reaction temperature is 350 , ℃ the gas hourly space velocity is 2000 h-1, the residual benzene concentration in treated gaseous was less than 12 mg/m3, which is the maximum permitted benzene emission concentration according to the comprehensive emission standard of air pollutants. Benzene was mineralized to CO2 and H2O finally.
ZHANG Ping LIU Ji CHEN Yu HUANG Huiping YANG Mingde WU Yulong DANG Jie LAN Lin
Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, PR China Faand Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, PR China Faand Chemical Engineering, China University of Geosciences Wuhan430074, China College of Chemistry and Chemical Engineering Shihezi University, Shihezi 832003, China
国际会议
2011 International Symposium on Environmental Science and Technology(2011 环境科学与技术国际会议 2011 ISEST)
广东东莞
英文
433-438
2011-06-01（万方平台首次上网日期，不代表论文的发表时间）