Promotion effect of Re additive on the bifunctional Ni catalysts for methanation coupling with water gas shift of biogas: Insights from activation energy

Xinxin Dong; Baosheng Jin; Zhiwei Kong; Yiqing Sun

doi:10.1016/j.cjche.2020.03.016

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Promotion effect of Re additive on the bifunctional Ni catalysts for methanation coupling with water gas shift of biogas: Insights from activation energy

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

- Promotion effect of Re additive on the bifunctional Ni catalysts for methanation coupling with water gas shift of biogas: Insights from activation energy
- Promotion effect of Re additive on the bifunctional Ni catalysts for methanation coupling with water gas shift of biogas: Insights from activation energy
- 中国化学工程学报（英文版） 2020年第6期页码：1628-1636
- Affiliations：
  
  Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy & Environment, Southeast University,Nanjing,China,210096
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2020.03.016
  中图分类号：
- 纸质出版：2020
- Accepted：
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Xinxin Dong, Baosheng Jin, Zhiwei Kong, 等. Promotion effect of Re additive on the bifunctional Ni catalysts for methanation coupling with water gas shift of biogas: Insights from activation energy[J]. 中国化学工程学报（英文版）, 2020,(6):1628-1636.

Xinxin Dong, Baosheng Jin, Zhiwei Kong, et al. Promotion effect of Re additive on the bifunctional Ni catalysts for methanation coupling with water gas shift of biogas: Insights from activation energy[J]. Chinese Journal of Chemical Engineering, 2020, (6): 1628-1636.
Xinxin Dong, Baosheng Jin, Zhiwei Kong, 等. Promotion effect of Re additive on the bifunctional Ni catalysts for methanation coupling with water gas shift of biogas: Insights from activation energy[J]. 中国化学工程学报（英文版）, 2020,(6):1628-1636. DOI： 10.1016/j.cjche.2020.03.016.

Xinxin Dong, Baosheng Jin, Zhiwei Kong, et al. Promotion effect of Re additive on the bifunctional Ni catalysts for methanation coupling with water gas shift of biogas: Insights from activation energy[J]. Chinese Journal of Chemical Engineering, 2020, (6): 1628-1636. DOI： 10.1016/j.cjche.2020.03.016.

摘要

Abstract

The cheap manganese sand was first modified by H

and was further creatively utilized as Ni-based catalyst support. In order to enhance the catalytic performance

Re was added into the Ni-based catalyst and the promotion effect of Re on the methanation coupling with water gas shift of biogas was investigated from the perspective of activation energy. It was found that CH

and CO

formation rates

which separately represented the reaction rate of methanation and water gas shift

were both enhanced after Re addition compared to non-added catalyst. Two kinetics models including empirical model and K-model were employed and from the results of calculation

it showed that Re selectively decreased the activation energy of methanation reaction and had little impact on the activation energy of water gas shift. The increased CO

formation rate was owing to the assistance of accelerated H

O production from methanation rather than the activation energy change in water gas shift.

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