One-Step Synthesis of High-Silica ZSM-5 Zeolite with Less Internal Silicon Hydroxyl Groups: Highly Stable Catalyst for Methanol to Propene Reaction

被引：6

作者：

Huang, Huiwen ^{[1
]}

Yuan, Chengyi ^{[1
]}

Zhong, Pei ^{[1
]}

Fan, Wenyang ^{[1
]}

He, Shanshan ^{[1
]}

Xu, Dongmei ^{[1
]}

Gao, Jun ^{[1
]}

Zhang, Qiang ^{[2
]}

Li, Chunyi ^{[2
]}

机构：

[1] Shandong Univ Sci & Technol, Coll Chem & Biol Engn, Qingdao 266590, Peoples R China

[2] China Univ Petr East China, State Key Lab Heavy Oil Proc, Qingdao 266580, Peoples R China

来源：

CATALYSIS LETTERS | 2022年 / 152卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Methanol; Propene; High-silica ZSM-5 zeolite; Silicon hydroxyl groups; Deactivation; TUNABLE ACIDITY; PROPYLENE; CONVERSION; H-ZSM-5; DEALUMINATION; MESOPOROSITY; PERFORMANCE; ALUMINUM; OLEFINS;

D O I：

10.1007/s10562-021-03796-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High-silica ZSM-5 zeolite with less internal silicon hydroxyl groups was directly synthesized through a one-step hydrothermal crystallization method. The physicochemical properties of high-silica ZSM-5 zeolite with less internal silicon hydroxyl groups together with its catalytic capability for methanol to propene reaction were roundly compared with that of commercial ZSM-5 zeolite and another high-silica ZSM-5 zeolite with similar acid distribution but different hydroxyl distribution to it. The results show that high-silica ZSM-5 zeolite with less internal silicon hydroxyl groups has good crystallinity, uniform crystal size and moderate acidity, which is a highly stable catalyst for methanol to propene reaction. Based on the characterization and reaction results, the high stability of high-silica ZSM-5 zeolite with less internal silicon hydroxyl groups in methanol to propene reaction proves that the distribution of silicon hydroxyl groups plays a significant role in the deactivation of ZSM-5 zeolite. [GRAPHICS] .

引用

页码：2178 / 2185

页数：8

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