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对不同Mo含量的Mo／HZSM－5催化剂的结构进行了表征，并对这些催化剂的甲烷非氧气氛下的转化反应进行了考察．催化剂的BET比表面积及酸性随Mo含量的增加而降低，当Mo含量大于5％时，Mo对ZSM－5分子筛的晶型有影响，并出现MoO3物相．甲烷在700℃时可高选择性地生成苯和乙烯，最佳Mo含量大约为2％．纯的MoO3或HZSM－5上该反应几乎不进行，因此，可能是分散的钼氧离子和分子筛的酸中心是甲烷转化的活性中心，只有二者的协同作用才能促进甲烷的转化．反应后催化剂中的钼物种被还原了．催化剂上的积炭可能是催化剂失活的主要原因之一，烧炭后催化剂活性基本恢复．
The structures of Mo / HZSM-5 catalysts with different Mo content were characterized and the conversion reactions of these catalysts in non-oxygen methane atmosphere were investigated. The BET specific surface area and acidity of the catalyst decreased with the increase of Mo content. When the Mo content was more than 5%, Mo affected the crystal structure of the ZSM-5 zeolite and the MoO3 phase appeared. Methane at 700 ℃ with high selectivity to benzene and ethylene, the best Mo content of about 2%. Pure MoO3 or HZSM-5 almost no reaction, so it may be dispersed molybdenum oxygen ions and molecular sieve acid center is the active center of methane conversion, only the synergy can promote the methane conversion. The molybdenum species in the catalyst is reduced after the reaction. The coke deposition on the catalyst may be one of the main reasons for catalyst deactivation. The activity of the catalyst recovered basically after the carbonization.