Effect of Particle Morphology for ZSM-5 Zeolite on the Catalytic Conversion of Methanol to Gasoline-Range Hydrocarbons

被引：24
|
作者：
Fu, Tingjun [1 ]
Zhou, Hao [1 ]
Li, Zhong [1 ]
机构：
[1] Taiyuan Univ Technol, Key Lab Coal Sci & Technol, Minist Educ & Shanxi Prov, Taiyuan 030024, Peoples R China
来源：
CATALYSIS LETTERS | 2016年 / 146卷 / 10期
关键词：
ZSM-5; Particle; Morphology effect; Methanol-to-gasoline; ACID SITES; COKE FORMATION; H-ZSM-5; STRENGTH; MFI; DEACTIVATION; CRYSTALS; UNIFORM; ACCESSIBILITY; PERFORMANCE;
D O I：
10.1007/s10562-016-1841-3
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：
ZSM-5 zeolite composed of nano-sphere or nano-rod crystallites were prepared to compare with micron-sized ZSM-5. These samples have different morphologies but similar acid properties, which could diminish the effect of acid properties to study the morphology effect of ZSM-5 particles on MTG reaction. It was found that nano-sphere crystallite aggregate ZSM-5 presented larger external surface and mesopore volume than micron-sized ZSM-5 and nano-rod crystallites aggregate ZSM-5, increasing both acid sites accessibility and diffusion properties. Add that into the consideration with the weak acidity, nano-sphere crystallite aggregated ZSM-5 exhibited high liquid hydrocarbon yield, slow deactivation process and high selectivity to aromatics and iso-paraffins. [GRAPHICS] .
引用
收藏
页码：1973 / 1983
页数：11
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