中文摘要：

采用Na2CO3溶液以及Na2CO3／TPAOH（四丙基氢氧化铵）混合碱溶液对不同硅铝比的ZSM-5分子筛进行处理，用XRD，BET，NHs—TPD，SEM等方法对碱处理前后的ZSM-5分子筛进行表征。结果表明：Na2CO3／TPAOH混合碱处理没有破坏ZSM-5分子筛原晶体形貌，且更利于增加分子筛的比表面积和介孔体积。以FCC汽油为原料，对碱处理后不同硅铝比的ZSM-5分子筛制得的Co—Mo／ZSM-5催化剂进行加氢脱硫及烯烃芳构化性能评价。结果表明，在反应温度为400℃、反应压力为2．5MPa、氢油体积比为300：1、反应空速为1．5h^-1的条件下，脱硫率为94．2％，芳烃收率为30．82％。

英文摘要：

ZSM-5 zeolites with different Si/A1 ratio were treated by Na2CO3 and TPAOH mixed alkali solution. The zeolites before and after alkali treatment were characterized by XRD, BET, SEM and NH3-TPD techniques. Co-Mo/ZSM-5 catalysts were prepared by step pore volume impregnation method. With FCC gasoline as the raw material, the performance of hydrodesulfurization and olefin aromatization over CoMo/ZSM-5 catalysts was evaluated. The results show that the zeolite frame structure is not destroyed by Na2CO3/TPAOH treatment. The treatment is beneficial to the increase of specific surface area and pore volume of mesoporous. At the reaction conditions of 400 ℃, 2.5 MPa, space velocity of 1.5 h 1 H2/oil ratio of 300 ： 1, the desulfurization rate reaches 94.2%, and the yield of aro- matics is 30.82 %.