New CHA-Type aluminoborosilicates as efficient catalysts for MTO and NH3-SCR of NOx reactions

Jingyan Zhang; Peng Ji; Li Ren; Yuhong Zhao; Shiqing Li; Hao Xu; Honggen Peng; Jin Gang Jiang; Yejun Guan; Peng Wu

doi:10.1016/j.cej.2022.136657

New CHA-Type aluminoborosilicates as efficient catalysts for MTO and NH₃-SCR of NO_x reactions

Jingyan Zhang
, Peng Ji
, Li Ren
, Yuhong Zhao
, Shiqing Li
, Hao Xu^*
, Honggen Peng
, Jin Gang Jiang
, Yejun Guan
, Peng Wu

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

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

11 Scopus citations

Abstract

The small-pore CHA-type zeolites have received intensive attentions due to their outstanding performance in both of the methanol-to-olefin (MTO) process and ammonia selective catalytic reduction of nitrogen oxides (NH₃-SCR of NO_x) reactions. However, the costly synthesis of CHA-type aluminosilicate is a great issue for the practical application. In this study, a novel and cheap organic structure-directing agent of N,N,N-trimethylisobutylammonium hydroxide was developed and used to synthesize CHA-type zeolites (name as ECNU-25) with boric acid as the supporting agent. The Si/Al ratio in the synthetic gel could be tailored in a wide range of 50 - ∞. [Al,B]-ECNU-25 zeolite thus synthesized served as an effective catalyst for the MTO reaction. After Cu²⁺-exchange, the Cu-[Al,B]-ECNU-25 was also highly active in the NH₃-SCR of NO_x.

Original language	English
Article number	136657
Journal	Chemical Engineering Journal
Volume	444
DOIs	https://doi.org/10.1016/j.cej.2022.136657
State	Published - 15 Sep 2022

Keywords

CHA zeolite
High-silica
MTO reaction
NH-SCR of NO
cheap OSDA

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10.1016/j.cej.2022.136657

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@article{ee1943a97e4b484f931b4757cc5be061,

title = "New CHA-Type aluminoborosilicates as efficient catalysts for MTO and NH3-SCR of NOx reactions",

abstract = "The small-pore CHA-type zeolites have received intensive attentions due to their outstanding performance in both of the methanol-to-olefin (MTO) process and ammonia selective catalytic reduction of nitrogen oxides (NH3-SCR of NOx) reactions. However, the costly synthesis of CHA-type aluminosilicate is a great issue for the practical application. In this study, a novel and cheap organic structure-directing agent of N,N,N-trimethylisobutylammonium hydroxide was developed and used to synthesize CHA-type zeolites (name as ECNU-25) with boric acid as the supporting agent. The Si/Al ratio in the synthetic gel could be tailored in a wide range of 50 - ∞. [Al,B]-ECNU-25 zeolite thus synthesized served as an effective catalyst for the MTO reaction. After Cu2+-exchange, the Cu-[Al,B]-ECNU-25 was also highly active in the NH3-SCR of NOx.",

keywords = "CHA zeolite, High-silica, MTO reaction, NH-SCR of NO, cheap OSDA",

author = "Jingyan Zhang and Peng Ji and Li Ren and Yuhong Zhao and Shiqing Li and Hao Xu and Honggen Peng and Jiang, \{Jin Gang\} and Yejun Guan and Peng Wu",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = sep,

day = "15",

doi = "10.1016/j.cej.2022.136657",

language = "英语",

volume = "444",

journal = "Chemical Engineering Journal",

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TY - JOUR

T1 - New CHA-Type aluminoborosilicates as efficient catalysts for MTO and NH3-SCR of NOx reactions

AU - Zhang, Jingyan

AU - Ji, Peng

AU - Ren, Li

AU - Zhao, Yuhong

AU - Li, Shiqing

AU - Xu, Hao

AU - Peng, Honggen

AU - Jiang, Jin Gang

AU - Guan, Yejun

AU - Wu, Peng

PY - 2022/9/15

Y1 - 2022/9/15

N2 - The small-pore CHA-type zeolites have received intensive attentions due to their outstanding performance in both of the methanol-to-olefin (MTO) process and ammonia selective catalytic reduction of nitrogen oxides (NH3-SCR of NOx) reactions. However, the costly synthesis of CHA-type aluminosilicate is a great issue for the practical application. In this study, a novel and cheap organic structure-directing agent of N,N,N-trimethylisobutylammonium hydroxide was developed and used to synthesize CHA-type zeolites (name as ECNU-25) with boric acid as the supporting agent. The Si/Al ratio in the synthetic gel could be tailored in a wide range of 50 - ∞. [Al,B]-ECNU-25 zeolite thus synthesized served as an effective catalyst for the MTO reaction. After Cu2+-exchange, the Cu-[Al,B]-ECNU-25 was also highly active in the NH3-SCR of NOx.

AB - The small-pore CHA-type zeolites have received intensive attentions due to their outstanding performance in both of the methanol-to-olefin (MTO) process and ammonia selective catalytic reduction of nitrogen oxides (NH3-SCR of NOx) reactions. However, the costly synthesis of CHA-type aluminosilicate is a great issue for the practical application. In this study, a novel and cheap organic structure-directing agent of N,N,N-trimethylisobutylammonium hydroxide was developed and used to synthesize CHA-type zeolites (name as ECNU-25) with boric acid as the supporting agent. The Si/Al ratio in the synthetic gel could be tailored in a wide range of 50 - ∞. [Al,B]-ECNU-25 zeolite thus synthesized served as an effective catalyst for the MTO reaction. After Cu2+-exchange, the Cu-[Al,B]-ECNU-25 was also highly active in the NH3-SCR of NOx.

KW - CHA zeolite

KW - High-silica

KW - MTO reaction

KW - NH-SCR of NO

KW - cheap OSDA

UR - https://www.scopus.com/pages/publications/85129492305

U2 - 10.1016/j.cej.2022.136657

DO - 10.1016/j.cej.2022.136657

M3 - 文章

AN - SCOPUS:85129492305

SN - 1385-8947

VL - 444

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

M1 - 136657

ER -

New CHA-Type aluminoborosilicates as efficient catalysts for MTO and NH₃-SCR of NO_x reactions

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Keywords

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