Study on Catalytic Alkylation of Benzene with Methanol over ZSM-22 and ZSM-35  

作　　者：Li Yunsheng Wen Zhenhao Wei Zhenhao Yang Fan Zhu Xuedong 

机构地区：[1]Engineering Research Center of Large Scale Reactor Engineering and Technology, East China University of Science and Technology, Shanghai 200237 [2]State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237

出　　处：《China Petroleum Processing & Petrochemical Technology》2017年第4期38-46,共9页中国炼油与石油化工（英文版）

基　　金：financial support from the National Natural Science Foundation of China (No.2177061270)

摘　　要：The ZSM-22 and ZSM-35 zeolites were synthesized via the hydrothermal crystallization method. The samples were characterized by XRD, SEM, N_2 adsorption-desorption, NH_3-TPD, TPO, TG, and Raman spectrometry, and the results showed that ZSM-22 and ZSM-35 possessed similar microporous volume and acidity. In the alkylation of benzene with methanol, ZSM-22 and ZSM-35 showed different coke location, coking rate and graphitizing degree. Compared with the industrial ZSM-5, ZSM-22 and ZSM-35 both showed higher selectivity of toluene and xylene(93.63% and 96.50%,respectively) during the alkylation of benzene with methanol, and the selectivity of para-xylene in xylene isomers was51.96% and 41.45%, respectively. Meanwhile, the selectivity of ethylbenzene and C_9^+ aromatics was also lower than that of industrial ZSM-5.The ZSM-22 and ZSM-35 zeolites were synthesized via the hydrothermal crystallization method. The samples were characterized by XRD, SEM, N_2 adsorption-desorption, NH_3-TPD, TPO, TG, and Raman spectrometry, and the results showed that ZSM-22 and ZSM-35 possessed similar microporous volume and acidity. In the alkylation of benzene with methanol, ZSM-22 and ZSM-35 showed different coke location, coking rate and graphitizing degree. Compared with the industrial ZSM-5, ZSM-22 and ZSM-35 both showed higher selectivity of toluene and xylene(93.63% and 96.50%,respectively) during the alkylation of benzene with methanol, and the selectivity of para-xylene in xylene isomers was51.96% and 41.45%, respectively. Meanwhile, the selectivity of ethylbenzene and C_9^+ aromatics was also lower than that of industrial ZSM-5.

关 键 词：ZSM-22 ZSM-35 BENZENE METHANOL ALKYLATION 

分 类 号：TQ203.2[化学工程—有机化工]