Normally, higher conversion of benzene represented higher utilization rate of methanol. Given these problems, we have modified HZSM-5 with 3-aminopropyltriethoxysilane (AMEO) and the physical-chemistry properties of the catalysts were characterized by XRD, Zeta potential, Contact Angle Measurement, SEM, NH₃-TPD and EDS. Meanwhile, the influence of AMEO addition on the catalytic performance of HZSM-5 for the alkylation of benzene with methanol was researched. Results show that HZSM-5 treated with AMEO, not only the selectivity of target product and the utilization of methanol for the alkylation of benzene with methanol were improved, but also the amount of coke was significant reduced.

通常，较高的苯转化率表示较高的甲醇利用率。鉴于这些问题，我们用3-氨基丙基三乙氧基硅烷（AMEO）改性了HZSM-5，并通过XRD，Zeta电位，接触角测量，SEM，NH ₃ -TPD和EDS对催化剂的物理化学性质进行了表征。同时，研究了AMEO加成对HZSM-5催化苯与甲醇烷基化反应性能的影响。结果表明，采用AMEO处理HZSM-5，不仅提高了目标产物的选择性，而且提高了甲醇在苯与甲醇的烷基化反应中的利用率，而且显着减少了焦炭的用量。