Enhanced catalytic performance for light-olefins production from chloromethane over hierarchical porous ZSM-5 zeolite synthesized by a growth-inhibition strategy

Qing Liu; Dafen Wen; Yanran Yang; Zhaoyang Fei; Zhuxiu Zhang; Xian Chen; Jihai Tang; Mifen Cui; Xu Qiao

doi:10.1016/j.apsusc.2017.11.153

Enhanced catalytic performance for light-olefins production from chloromethane over hierarchical porous ZSM-5 zeolite synthesized by a growth-inhibition strategy

Qing Liu, Dafen Wen, Yanran Yang, Zhaoyang Fei, Zhuxiu Zhang, Xian Chen, Jihai Tang, Mifen Cui, Xu Qiao

College of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

Hierarchical porous ZSM-5 (HP-ZSM-5) zeolites were synthesized by hydrothermal crystallization method adding triethoxyvinylsilane as the growth-inhibitor at different hydrothermal crystallized temperatures. The properties of the obtained samples were characterized by XRD, SEM, N ₂ -sorption, uptake of ethylene, ²⁷ Al MAS NMR, NH ₃ -TPD, and Py-IR. It was found that the mesopore was introduced and the acidity was adjusted over HP-ZSM-5 samples successfully. The hydrothermal crystallized temperature had an important influence on the porous structure and surface properties. The catalytic performance for chloromethane to light-olefins (CMTO) were also investigated. Compared with ZSM-5 samples, HP-ZSM-5 samples exhibited enhanced stability and increased selectivity of light-olefins for CMTO reaction because of the introduction of the abundant mesopore and appropriate acidity. The lifetime (the duration of chloromethane conversion >98%) and selectivity of light-olefins reached 115 h and 69.3%, respectively.

Original language	English
Pages (from-to)	945-952
Number of pages	8
Journal	Applied Surface Science
Volume	435
DOIs	https://doi.org/10.1016/j.apsusc.2017.11.153
State	Published - 30 Mar 2018

Keywords

CMTO
Hierarchical pore
Light-olefins
ZSM-5

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10.1016/j.apsusc.2017.11.153

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@article{6ac2db292f0242728669620648baf221,

title = "Enhanced catalytic performance for light-olefins production from chloromethane over hierarchical porous ZSM-5 zeolite synthesized by a growth-inhibition strategy",

abstract = " Hierarchical porous ZSM-5 (HP-ZSM-5) zeolites were synthesized by hydrothermal crystallization method adding triethoxyvinylsilane as the growth-inhibitor at different hydrothermal crystallized temperatures. The properties of the obtained samples were characterized by XRD, SEM, N 2 -sorption, uptake of ethylene, 27 Al MAS NMR, NH 3 -TPD, and Py-IR. It was found that the mesopore was introduced and the acidity was adjusted over HP-ZSM-5 samples successfully. The hydrothermal crystallized temperature had an important influence on the porous structure and surface properties. The catalytic performance for chloromethane to light-olefins (CMTO) were also investigated. Compared with ZSM-5 samples, HP-ZSM-5 samples exhibited enhanced stability and increased selectivity of light-olefins for CMTO reaction because of the introduction of the abundant mesopore and appropriate acidity. The lifetime (the duration of chloromethane conversion >98%) and selectivity of light-olefins reached 115 h and 69.3%, respectively.",

keywords = "CMTO, Hierarchical pore, Light-olefins, ZSM-5",

author = "Qing Liu and Dafen Wen and Yanran Yang and Zhaoyang Fei and Zhuxiu Zhang and Xian Chen and Jihai Tang and Mifen Cui and Xu Qiao",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2018",

month = mar,

day = "30",

doi = "10.1016/j.apsusc.2017.11.153",

language = "英语",

volume = "435",

pages = "945--952",

journal = "Applied Surface Science",

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T1 - Enhanced catalytic performance for light-olefins production from chloromethane over hierarchical porous ZSM-5 zeolite synthesized by a growth-inhibition strategy

AU - Liu, Qing

AU - Wen, Dafen

AU - Yang, Yanran

AU - Fei, Zhaoyang

AU - Zhang, Zhuxiu

AU - Chen, Xian

AU - Tang, Jihai

AU - Cui, Mifen

AU - Qiao, Xu

PY - 2018/3/30

Y1 - 2018/3/30

N2 - Hierarchical porous ZSM-5 (HP-ZSM-5) zeolites were synthesized by hydrothermal crystallization method adding triethoxyvinylsilane as the growth-inhibitor at different hydrothermal crystallized temperatures. The properties of the obtained samples were characterized by XRD, SEM, N 2 -sorption, uptake of ethylene, 27 Al MAS NMR, NH 3 -TPD, and Py-IR. It was found that the mesopore was introduced and the acidity was adjusted over HP-ZSM-5 samples successfully. The hydrothermal crystallized temperature had an important influence on the porous structure and surface properties. The catalytic performance for chloromethane to light-olefins (CMTO) were also investigated. Compared with ZSM-5 samples, HP-ZSM-5 samples exhibited enhanced stability and increased selectivity of light-olefins for CMTO reaction because of the introduction of the abundant mesopore and appropriate acidity. The lifetime (the duration of chloromethane conversion >98%) and selectivity of light-olefins reached 115 h and 69.3%, respectively.

AB - Hierarchical porous ZSM-5 (HP-ZSM-5) zeolites were synthesized by hydrothermal crystallization method adding triethoxyvinylsilane as the growth-inhibitor at different hydrothermal crystallized temperatures. The properties of the obtained samples were characterized by XRD, SEM, N 2 -sorption, uptake of ethylene, 27 Al MAS NMR, NH 3 -TPD, and Py-IR. It was found that the mesopore was introduced and the acidity was adjusted over HP-ZSM-5 samples successfully. The hydrothermal crystallized temperature had an important influence on the porous structure and surface properties. The catalytic performance for chloromethane to light-olefins (CMTO) were also investigated. Compared with ZSM-5 samples, HP-ZSM-5 samples exhibited enhanced stability and increased selectivity of light-olefins for CMTO reaction because of the introduction of the abundant mesopore and appropriate acidity. The lifetime (the duration of chloromethane conversion >98%) and selectivity of light-olefins reached 115 h and 69.3%, respectively.

KW - CMTO

KW - Hierarchical pore

KW - Light-olefins

KW - ZSM-5

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U2 - 10.1016/j.apsusc.2017.11.153

DO - 10.1016/j.apsusc.2017.11.153

M3 - 文章

AN - SCOPUS:85034992307

SN - 0169-4332

VL - 435

SP - 945

EP - 952

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Enhanced catalytic performance for light-olefins production from chloromethane over hierarchical porous ZSM-5 zeolite synthesized by a growth-inhibition strategy

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Keywords

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