【摘 要】
：
考察了担载ＭｏＯ３的沸石催化剂上甲烷的无氧芳构化性能，并与沸石结构相关联．结果表明，孔径与苯分子动态直径相当的ＺＳＭ－５、ＺＳＭ－８、ＺＳＭ－１１和β沸石等是甲烷无氧芳构化催化剂的良好载体，其中３％ＭｏＯ３／ＨＺＳＭ－１１具有最高的甲烷
【机 构】
：
吉林大学化学系,哈尔滨工程大学化工系,中国科学院大连化学物理研究所
论文部分内容阅读
考察了担载ＭｏＯ３的沸石催化剂上甲烷的无氧芳构化性能，并与沸石结构相关联．结果表明，孔径与苯分子动态直径相当的ＺＳＭ－５、ＺＳＭ－８、ＺＳＭ－１１和β沸石等是甲烷无氧芳构化催化剂的良好载体，其中３％ＭｏＯ３／ＨＺＳＭ－１１具有最高的甲烷芳构化活性和稳定性，９７３Ｋ下的转化率和苯选择性分别为８．０％和９０．９％；６％ＭｏＯ３／ＨＺＳＭ－８与７％ＭｏＯ３／Ｈ－β芳构化性能相当．以ＨＭＣＭ－４１和ＨＳＡＰＯ－３４为载体时芳构化活性很低，以ＨＭＯＲ、ＨＸ和ＨＹ为载体时仅有少量乙烯生成，而以ＨＳＡＰＯ－５和ＨＳＡＰＯ－１１为载体时未检测到烃类生成．
The anaerobic aromatization of methane over zeolites supported on MoO3 was investigated and correlated with the zeolite structure. The results show that ZSM-5, ZSM-8, ZSM-11 and β zeolite, which have equivalent pore diameter and benzene molecular dynamic diameter, are good carriers for methane-free anaerobic aromatization catalyst. The 3% MoO3 / HZSM- The aromatization activity and stability were 8% and 90.9% at 973K and 7%, respectively. The aromatization performance of 6% MoO3 / HZSM-8 and 7% MoO3 / H-β were comparable. The aromatization activity was low with HMCM-41 and HSAPO-34 as carriers, and only a small amount of ethylene was formed with HMOR, HX and HY as carriers whereas no hydrocarbons were detected with HSAPO-5 and HSAPO-11 as carriers generate.
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