中文摘要：

采用NaOH溶液对ZSM-5分子筛进行碱处理，制备了多级孔径ZSM-5分子筛。采用浸渍法制备了多级孔Zn—La／HZSM-5分子筛，并采用XRD、BET、SEM和NH3-TPD等方法进行了表征，在固定床反应器中进行甲醇芳构化反应。结果表明，经过碱处理，ZSM-5分子筛的平均孔径、孔容和比表面积增大，孔径呈微孔和介孔多级孔分布。Zn和La的负载量均为0．5％时，Zn-La／ZSM-5分子筛具有较好的芳构化活性。在反应温度475℃、反应压力0．6MPa、空速（LHSV）0．8h。条件下，芳烃（苯、甲苯和二甲苯）的收率可达32．3％。

英文摘要：

The alkaline treatment of ZSM-5 zeolite with NaOH solution, received the hierarchical porous ZSM-5 zeolite, Zn and La by co-impregnation method of loading in the alkali treatment of the modified ZSM-5 zeolite, the ZSM-5 molecular sieves were characterized by XRD, BET,SEM and NH3-TPD. The reaction of methanol aromatization was investigated in a fixed bed reactor. The results show that after alkali treatment modified ZSM-5 zeolite had a pore size increased and the acidity distribution was changed; Zn-La/HZSM-5 zeolite had the better catalytic, Zn and La with the load capacity of each of 0.5%, the reaction temperature was 475 ℃, the reaction pressure was 0. 6 MPa, LHSV was 0. 8 h-1, the yield of aromatic hydrocarbons （benzene, toluene and xylene） up to 32.3%.