甲烷载体催化元件灵敏度稳定性的研究  

Study of Sensitivity Stability of Methane Carrier Catalytic Element

作　　者：朱正和[1] 廖德林[1] 李卫成[1] 赵新权[1] 

机构地区：[1]煤炭科学研究总院重庆分院,重庆400037

出　　处：《矿业安全与环保》2003年第b06期147-148,共2页Mining Safety & Environmental Protection

摘　　要：用溶胶—凝胶法和浸渍法制备甲烷载体催化元件,把元件放在清洁空气连续工作8×24h,再放在3.5±.2%CH4气氛中连续工作8×24h,对电桥输出值的变化进行分析,发现溶胶—凝胶法制备的载体催化元件中催化剂能更好地固定在Al2O3载体的网状结构中,从而提高了催化元件灵敏度的稳定性。The methane carrier catalytic elements are prepared by sol-gel method and immersion method. The elements are first put into clean air and continuously work for 8x24h and the into 2% CH4 gas and continuously work for 8x24h. Analysis is then made on the change of the output value of electric bridge and it is found that the catalyst can better adhere to in the reticulate structure of Al2O3 carrier in the catalytic elements prepared by sol-gel method, which improves the sensitivity stability of carrier catalytic elements.

关 键 词：溶胶-凝胶法 浸渍法 甲烷载体催化元件 灵敏度 稳定性 钯 三氧化二铝 催化剂 

分 类 号：TQ426.65[化学工程]