Dual-template synthesis of HZSM-5 zeolites with tailored activity in toluene methylation with CH<sub>3</sub>Br

Wuhui Wang; Jun Xie; Peng Wang; Lang Chen; Chaktong Au; Shuangfeng Yin

doi:10.1016/j.cjche.2018.10.013

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Dual-template synthesis of HZSM-5 zeolites with tailored activity in toluene methylation with CH₃Br

Updated：2026-01-06

- Dual-template synthesis of HZSM-5 zeolites with tailored activity in toluene methylation with CH₃Br
- Chinese Journal of Chemical Engineering Vol. 27, Issue 8, Pages: 1846-1850(2019)
- Affiliations：
  
  1. State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan Provincial Key Laboratory for Cost-effective Utilization of Fossil Fuel Aimed at Reducing Carbon-dioxide Emissions, College of Chemistry and Chemical Engineering, Hunan University,Changsha,China,410082
  2. College of Chemistry and Chemical Engineering, Hunan Institute of Engineering,Xiangtan,China,411104
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.10.013
  CLC：
- Published：2019
- Accepted：
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Br[J]. 中国化学工程学报, 2019, 27(8): 1846-1850.
DOI：

Br[J]. 中国化学工程学报, 2019, 27(8): 1846-1850. DOI： 10.1016/j.cjche.2018.10.013.

摘要

Abstract

Shape-selective zeolites (HZ-

x/y

) were synthesized by a one-pot method using TPAOH (

) and/or MeEt

(

) as templates. The use of MeEt

affects the crystal growth and the distribution of acid sites on the external surface of the zeolites. The catalysts show excellent catalytic activity towards toluene alkylation with CH

Br. With toluene conversion of 36.3% and

-xylene selectivity of 66.2%

HZ-40/0 is the most effective among the prepared catalysts

showing a

-xylene yield of 21.2%. The improved

para

-selectivity is mainly due to the decrease of acid sites on the external surface of the catalysts.

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Dual-template synthesis of HZSM-5 zeolites with tailored activity in toluene methylation with CH3Br

DOI：10.1016/j.cjche.2018.10.013

摘要

Abstract

关键词

Keywords

references

Dual-template synthesis of HZSM-5 zeolites with tailored activity in toluene methylation with CH₃Br