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用脉冲催化色谱法以环己烯转化为模型反应考察了镧氢Y,氢型 ZSM-5,氢丝光沸石,铝交链蒙脱土和无定形硅酸铝的骨架异构化和氢转移反应选择性,考察了酸型、酸强度对反应的影响,以及已用过的催化剂的热脱附产物.结果表明,各种沸石的骨架异构化反应选择性的顺序为:HZSM-5>HM>SIO_2·Al_2O_3>AlCLM>LaHY,而氢转移选择性的顺序正好相反,这种差别主要与它们的孔道结构有关。
The isomerization and hydrogen transfer reactions of Lanthanum Hydrogen Y, Hydrogen ZSM-5, Hydrogen Mordenite, Al-Clay Montmorillonite and Amorphous Aluminum Silicate were investigated by the pulsed-catalytic chromatography using cyclohexene conversion as a model reaction Selectivity, the effect of acidity and acid strength on the reaction, and the thermal desorption products of used catalysts were investigated.These results showed that the order of the skeletal isomerization reactions of various zeolites was HZSM-5> HM > SIO_2 · Al_2O_3> AlCLM> LaHY, while the order of hydrogen transfer selectivity is just the opposite. The difference is mainly related to their pore structure.