Preparation of H-mordenite/MCM-48 composite and its catalytic performance in the alkylation of toluene with tert-butanol


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A series of HM/MCM-48 samples with different SiO2/Al2O3 molar ratio were prepared by sol-gel method. The prepared catalysts were characterized by XRD, N2 adsorption-desorption, NH3-TPD, FT-IR, SEM, and TEM techniques, and their catalytic performance was investigated in alkylation of toluene with tert-butanol. The adsorption capacity and the acid sites amount of HM/MCM-48-4 sample prepared by growing MCM-48 on the surface of HM zeolite are much higher than that of their mechanical mixture (HM/MCM-48(4) sample) due to its biporous structure; it shows higher catalytic performance than other HM/MCM-48 samples. The influence of reaction conditions on the catalytic performance of HM/MCM-48-4 zeolite was discussed. Toluene conversion of 41.4% and p-tert-butyltoluene selectivity of 73.5% were obtained at the weight ratio of toluene to HM/MCM-48-4 of 5, reaction temperature of 453 K, reaction time of 5 h and the molar ratio of toluene to tert-butanol of 0.5.

作者简介

Zhiwei Zhou

College of Chemical Engineering; Jiangsu Yangnong Chemical Group Co., LTD.

Email: wwl@njtech.edu.cn
中国, Nanjing, 210009; Yangzhou, 225009

Fuling Cheng

College of Chemical Engineering

Email: wwl@njtech.edu.cn
中国, Nanjing, 210009

Juan Qin

Technology and Finance Service Center of Jiangsu Province

Email: wwl@njtech.edu.cn
中国, Nanjing, 210042

Pengcheng Yu

College of Chemical Engineering

Email: wwl@njtech.edu.cn
中国, Nanjing, 210009

Lin Xu

Jiangsu Yangnong Chemical Group Co., LTD.

Email: wwl@njtech.edu.cn
中国, Yangzhou, 225009

Zhiqiang Gu

Jiangsu Yangnong Chemical Group Co., LTD.

Email: wwl@njtech.edu.cn
中国, Yangzhou, 225009

Xiaoqin Liu

College of Chemical Engineering

Email: wwl@njtech.edu.cn
中国, Nanjing, 210009

Wenliang Wu

College of Chemical Engineering

编辑信件的主要联系方式.
Email: wwl@njtech.edu.cn
中国, Nanjing, 210009

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