Surface dealumination of micro-sized ZSM-5 for improving propylene selectivity and catalyst lifetime in methanol to propylene (MTP) reaction

Rui Feng; Xinlong Yan; Xiaoyan Hu; Zifeng Yan; Jiawei Lin; Zheng Li; Kun Hou; Mark J. Rood

doi:10.1016/j.catcom.2018.02.005

Surface dealumination of micro-sized ZSM-5 for improving propylene selectivity and catalyst lifetime in methanol to propylene (MTP) reaction

Rui Feng, Xinlong Yan, Xiaoyan Hu, Zifeng Yan, Jiawei Lin, Zheng Li, Kun Hou, Mark J. Rood

Civil and Environmental Engineering

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

Abstract

Novel micro-sized ZSM-5 zeolite was successfully prepared by a two-stage glucose-assisted crystallization and a selective surface dealumination process before removing the templates for methanol to propylene (MTP) reaction. The structural and crystalline properties of the as-prepared ZSM-5 were characterized by XRD, XPS, SEM, FTIR, and NMR analyses. Results showed that novel ZSM-5 zeolites with micro-sized crystals had better performances in improving the propylene selectivity in the MTP reaction than those conventional ZSM-5 zeolites with nano-sized crystals. The surface dealumination before the template removal obviously decreased the concentrations of surface aluminum atoms and significantly improved lifetime of catalysts in MTP reaction.

Original language	English (US)
Pages (from-to)	1-5
Number of pages	5
Journal	Catalysis Communications
Volume	109
DOIs	https://doi.org/10.1016/j.catcom.2018.02.005
State	Published - May 5 2018

Keywords

Dealumination
Glucose
Methanol to propylene
Micro-sized
ZSM-5

ASJC Scopus subject areas

Catalysis
General Chemistry
Process Chemistry and Technology

Online availability

10.1016/j.catcom.2018.02.005

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title = "Surface dealumination of micro-sized ZSM-5 for improving propylene selectivity and catalyst lifetime in methanol to propylene (MTP) reaction",

abstract = "Novel micro-sized ZSM-5 zeolite was successfully prepared by a two-stage glucose-assisted crystallization and a selective surface dealumination process before removing the templates for methanol to propylene (MTP) reaction. The structural and crystalline properties of the as-prepared ZSM-5 were characterized by XRD, XPS, SEM, FTIR, and NMR analyses. Results showed that novel ZSM-5 zeolites with micro-sized crystals had better performances in improving the propylene selectivity in the MTP reaction than those conventional ZSM-5 zeolites with nano-sized crystals. The surface dealumination before the template removal obviously decreased the concentrations of surface aluminum atoms and significantly improved lifetime of catalysts in MTP reaction.",

keywords = "Dealumination, Glucose, Methanol to propylene, Micro-sized, ZSM-5",

author = "Rui Feng and Xinlong Yan and Xiaoyan Hu and Zifeng Yan and Jiawei Lin and Zheng Li and Kun Hou and Rood, {Mark J.}",

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T1 - Surface dealumination of micro-sized ZSM-5 for improving propylene selectivity and catalyst lifetime in methanol to propylene (MTP) reaction

AU - Feng, Rui

AU - Yan, Xinlong

AU - Hu, Xiaoyan

AU - Yan, Zifeng

AU - Lin, Jiawei

AU - Li, Zheng

AU - Hou, Kun

AU - Rood, Mark J.

PY - 2018/5/5

Y1 - 2018/5/5

N2 - Novel micro-sized ZSM-5 zeolite was successfully prepared by a two-stage glucose-assisted crystallization and a selective surface dealumination process before removing the templates for methanol to propylene (MTP) reaction. The structural and crystalline properties of the as-prepared ZSM-5 were characterized by XRD, XPS, SEM, FTIR, and NMR analyses. Results showed that novel ZSM-5 zeolites with micro-sized crystals had better performances in improving the propylene selectivity in the MTP reaction than those conventional ZSM-5 zeolites with nano-sized crystals. The surface dealumination before the template removal obviously decreased the concentrations of surface aluminum atoms and significantly improved lifetime of catalysts in MTP reaction.

AB - Novel micro-sized ZSM-5 zeolite was successfully prepared by a two-stage glucose-assisted crystallization and a selective surface dealumination process before removing the templates for methanol to propylene (MTP) reaction. The structural and crystalline properties of the as-prepared ZSM-5 were characterized by XRD, XPS, SEM, FTIR, and NMR analyses. Results showed that novel ZSM-5 zeolites with micro-sized crystals had better performances in improving the propylene selectivity in the MTP reaction than those conventional ZSM-5 zeolites with nano-sized crystals. The surface dealumination before the template removal obviously decreased the concentrations of surface aluminum atoms and significantly improved lifetime of catalysts in MTP reaction.

KW - Dealumination

KW - Glucose

KW - Methanol to propylene

KW - Micro-sized

KW - ZSM-5

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JO - Catalysis Communications

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ER -

Surface dealumination of micro-sized ZSM-5 for improving propylene selectivity and catalyst lifetime in methanol to propylene (MTP) reaction

Abstract

Keywords

ASJC Scopus subject areas

Online availability

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