Methane oxybromination over Rh-based catalysts: Effect of supports

Peng Wang; Lang Chen; Sheng Shen; Chak-Tong Au; Shuangfeng Yin

doi:10.1016/j.cjche.2019.09.001

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Methane oxybromination over Rh-based catalysts: Effect of supports

Catalysis, Kinetics and Reaction Engineering | Updated：2026-01-06

- Methane oxybromination over Rh-based catalysts: Effect of supports
- Chinese Journal of Chemical Engineering Vol. 28, Issue 7, Pages: 1809-1815(2020)
- 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.2019.09.001
  CLC：
- Published：2020
- Accepted：
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Peng Wang, Lang Chen, Sheng Shen, Chak-Tong Au, Shuangfeng Yin. Methane oxybromination over Rh-based catalysts: Effect of supports[J]. Chinese Journal of Chemical Engineering, 2020, 28(7): 1809-1815.
DOI：

Peng Wang, Lang Chen, Sheng Shen, Chak-Tong Au, Shuangfeng Yin. Methane oxybromination over Rh-based catalysts: Effect of supports[J]. Chinese Journal of Chemical Engineering, 2020, 28(7): 1809-1815. DOI： 10.1016/j.cjche.2019.09.001.

摘要

Abstract

Bromine mediation has been regarded as one of the most efficient ways to activate and convert methane to useful organics. This article reports the effects of active components (Rh

Pd and Pt) and supports (SiO

MgO and Al

) on the catalysis of methane oxybromination. Among the prepared catalysts

Rh/SiO

is the best in performance (CH

conversion of

. 20% and CH

Br selectivity exceeding 70%). The results reveal that support type has a notable influence on the catalytic performance of Rh

especially on product distribution. The high selectivity to CH

Br over Rh/SiO

is attributed to its low propensity for CH

Br oxidation. It was found that Rh small in particle size shows high catalytic activity and CH

Br selectivity. Although silicalite-1 zeolite suffers from a certain degree of structural damage due to the presence of high temperature steam

the use of silicalite-1 as support results in a performance comparable to that of Rh/SiO

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