Ni-Rh/Al_2O_3催化剂上甲烷-氘化氢间的氢氘交换性能  

Catalytic exchange performance of hydrogen-deuterium and methane on Ni-Rh/Al_2O_3 catalyst

作　　者：韩军[1] 任兴碧[1] 官锐[1] 胡胜[1] 熊亮萍[1] 

机构地区：[1]中国工程物理研究院,四川绵阳621900

出　　处：《化工学报》2009年第S1期68-72,共5页CIESC Journal

摘　　要：采用Ni-Rh/Al2O3催化剂,在固定床微型反应器上考察了Ni-Rh/Al2O3催化剂对甲烷的氢氘交换的催化性能。结果表明,在进料组成不变的条件下,当温度低于692K时,甲烷的转化率随温度的升高而快速升高,当温度高于692K时,甲烷的转化率不随温度的升高而变化;当温度低于692K时,甲烷的转化率随反应物流量的增加而明显减小,当温度高于692K时,甲烷的转化率基本不随温度和反应物流量的变化而变化;在反应物总流量不变的条件下,当HD/CH4流量比为1.1～2.5时,甲烷的转化率随着HD/CH4流量比增加而减小。The catalytic properties of the Ni-Rh/Al2O3 catalysts for the hydrogen-deuterium exchange of methane were tested with the fixed-bed micro-reactor.The results indicated that the conversion of methane increased by increasing reaction temperature when the temperature was less than 692K,the conversion of methane is not changed with increasing temperature when the temperature was higher than 692K under the same feed composition conditions.The conversion of methane was reduced with increasing the flow of reactants when the temperature was less than 692K,the conversion of methane did not change with increasing temperature when the temperature was higher than 692K under the same feed composition conditions.The conversion of methane was significantly reduced with increasing the flow rate of HD/CH4 when the flow rate was 1.1—2.5.

关 键 词：Ni-Rh/Al2O3催化剂 甲烷 氢氘交换 

分 类 号：TL941.2[核科学技术—辐射防护及环境保护]