节点文献
乙烷添加对Mo/HZSM-5催化剂上甲烷芳构化反应的影响
Effect of Ethane Addition on Methane Dehydroaromatization over Mo/HZSM-5 Catalyst
【摘要】 研究了乙烷添加对Mo/HZSM-5催化剂上甲烷芳构化反应性能的影响.在所考察的反应条件下,未观察到乙烷添加对甲烷转化的促进作用,乙烷本身反而生成甲烷,同时导致更高的积炭生成速率,使Mo/HZSM-5催化剂更快地失活.但添加乙烷加速了钼活性中心的形成,缩短了芳构化反应的诱导期,使苯的生成提前.
【Abstract】 The effect of ethane addition on methane dehydroaromatization over a Mo/HZSM-5 catalyst was investigated.It was revealed that the ethane addition could not promote the conversion of methane but produced methane and increased coke deposition rate,causing rapid deactivation of the catalyst.However,ethane accelerated the formation of Mo active centers(Mo2C and/or MoOxCy species),shortening the induction period and moving the benzene formation forward.
【关键词】 甲烷;
乙烷;
脱氢芳构化;
钼;
HZSM-5分子筛;
【Key words】 methane; ethane; dehydroaromatization; molybdenum; HZSM-5 zeolite;
【Key words】 methane; ethane; dehydroaromatization; molybdenum; HZSM-5 zeolite;
【基金】 国家重点基础研究发展计划(973计划,2005CB221407)
- 【文献出处】 催化学报 ,Chinese Journal of Catalysis , 编辑部邮箱 ,2010年01期
- 【分类号】O643.32
- 【被引频次】7
- 【下载频次】243