DEHYDROGENATION AND AROMATIZATION OF METHANE IN THE ABSENCE OF OXYGEN OVER DOPED Mo/HZSM-5 CATALYSTS

被引：0

作者：

舒玉瑛 ^{[1
]}

徐奕德 ^{[1
]}

崔巍 ^{[1
]}

王林胜 ^{[1
]}

郭燮贤 ^{[1
]}

机构：

[1] 中国科学院大连化学物理研究所催化基础国家重点实验室

来源：

Journal of Energy Chemistry | 1998年 / 03期

关键词：

甲烷无氧脱氢芳构化反应; 修饰的Mo／HZSM－5催化剂; 助剂; 预处理温度; 碳物种;

D O I：

暂无

中图分类号：

O623.11 [饱和脂烃（石蜡、烷属烃）];

学科分类号：

070303 ; 081704 ;

摘要：

研究了在Ｍｏ／ＨＺＳＭ－５催化剂上添加助剂以及不同的反应预处理温度对甲烷无氧脱氢芳构化反应的影响。实验结果表明，由于第二组分的添加，Ｍｏ／ＨＺＳＭ－５催化剂的活性和选择性都得到了较大程度的改善。预处理温度是影响催化剂反应性能的关键因素。Ｍｏ－Ｒｕ／ＨＺＳＭ－５催化剂经过８７３Ｋ空气预处理后，甲烷在９７３Ｋ的转化率约为１０％，催化剂的稳定性也得到较大程度的提高。ＴＰＳＲ实验结果表明，Ｒｕ的加入降低了芳烃生成的温度。ＴＰＯ和ＤＴＡ实验结果表明，在Ｍｏ－Ｒｕ／ＨＺＳＭ－５催化剂上可生成较多的碳物种，结合反应结果，可以认为反应过程中生成的碳物种对甲烷的无氧脱氢芳构化反应是起积极作用的

引用

页码：16 / 27+91

页数：13

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