Dehydrogenation and aromatization of methane under non-oxidizing conditions
Dehydrogenation and aromatization of methane under non-oxidizing conditions
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DOI：
10.1007/bf00767368
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发表时间：
1993-03
影响因子：
2.8
通讯作者：
Linsheng Wang;Longxiang Tao;Maosong Xie;Guifen Xu;Jiasheng Huang;Yide Xu
中科院分区：
文献类型：
--
作者：
Linsheng Wang;Longxiang Tao;Maosong Xie;Guifen Xu;Jiasheng Huang;Yide Xu
采用固定床连续流反应器和程序升温反应器，在非氧化条件下研究了改性ZSM-5沸石催化剂上甲烷的脱氢和芳构化反应。结果表明，在高温（973 K）下，苯是甲烷催化转化的唯一烃产物。加入金属阳离子（Mo或Zn）大大提高了ZSM-5的催化活性。在TPAR过程中，用质谱仪直接检测了产物中的h2h和乙烯。提出了一种碳离子活化甲烷的机理。
The dehydrogenation and aromatization of methane on modified ZSM-5 zeolite catalysts has been studied under non-oxidizing conditions with a fixed bed continuous-flow reactor and with a temperature programmed reactor. The results show that benzene is the only hydrocarbon product of the catalytic conversion of methane at high temperature (973 K). The catalytic activity of ZSM-5 is greatly improved by incorporating a metal cation (Mo or Zn). H2and ethene have been directly detected in the products with a mass spectrometer during TPAR. A carbenium ion mechanism for the activation of methane is suggested.