Solvent-Free Synthesis of Core-Shell Zn/ZSM-5@Silicalite-1 Catalyst for Selective Conversion of Methanol to BTX Aromatics

被引：44

作者：

Zhang, Jian ^{[1
,3
]}

Wang, Liang ^{[2
]}

Wu, Zhiyi ^{[1
]}

Wang, Hai ^{[2
]}

Wang, Chengtao ^{[3
]}

Han, Shichao ^{[3
]}

Xiao, Feng-Shou ^{[1
,2
,3
]}

机构：

[1] Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing 100029, Peoples R China

[2] Zhejiang Univ, Coll Chem & Biol Engn, Key Lab Biomass Chem Engn, Minist Educ, Hangzhou 310027, Zhejiang, Peoples R China

[3] Zhejiang Univ, Dept Chem, Key Lab Appl Chem Zhejiang Prov, Hangzhou 310028, Zhejiang, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2019年 / 58卷 / 34期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

PARA-XYLENE SELECTIVITY; ZEOLITE; TOLUENE; SYNGAS; ZSM-5; ZSM-5-AT-SILICALITE-1; DEHYDROGENATION; TRANSFORMATION; HYDROGENATION; GENERATION;

D O I：

10.1021/acs.iecr.9b03357

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We report the synthesis of Zn/ZSM-5 particles coated with a silicalite-1 zeolite shell (core-shell Zn/ZSM-5@ silicalite-1) via grinding of the raw silica source materials with TPAOH and Zn/ZSM-5, followed by solvent-free crystallization at 180 degrees C for 72 h. The product was well characterized by the XRD patterns, N-2 sorption isotherms, SEM images, and TEM images. Because of the core-shell structure, the Zn/ZSM-5@silicalite-1 sample exhibits high selectivities for benzene, toluene, and xylenes in the conversion of methanol, compared with those over ZSM-5 and Zn/ZSM-5 samples. The solvent-free synthesis offers an alternative method for preparing core-shell Zn/ZSM-5@silicalite-1 catalysts.

引用

页码：15453 / 15458

页数：6

共 32 条

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