关键词: ZSM-5分子筛膜, 噻吩, 苯并噻吩, 脱硫

Abstract: Liquid alkalinity of making membrane，silicon/aluminum ratio and quantity of template for the influence of becoming membrane were investigated in detail using orthogonal testing method. Desulfurization experiment was conducted in single component simulation gasoline. The optimal ratio of the crystallization for removing thiophene and benzothiophene was obtained in the desulfurization performance. Two membranes were prepared under the optimal conditions. The characteristics of the membranes were determined by XRD and SEM. The synthesized membranes were proved to be ZSM-5 zeolite membranes，and the apertures of two membranes were tested at 0.58 nm and 0.64 nm. Results showed that the ratio of the crystallization liquid mainly affected the aperture of the membrane which affected the selectivity of ZSM-5 zeolite membranes furthermore. The experiment result showed that when the aperture of ZSM-5 zeolite membrane was set to be slightly smaller than the dynamic diameter of sulfide molecular，an optimal desulfurization ratio was obtained.

Key words: ZSM-5 zeolite membrane, thiophene, benzothiophene, desulfurization