Experimental study on two-stage selective methanation of CO over Ni/Ru-based dual catalysts

WANG Yufei; LUO Chunhuan; BAI Wei; DONG Jiangfeng; WU Bo; LIU Lifeng; YANG Changchang; SU Qingquan

doi:10.12434/j.issn.2097-2547.20250289

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Experimental study on two-stage selective methanation of CO over Ni/Ru-based dual catalysts

更新时间：2026-06-25

- Experimental study on two-stage selective methanation of CO over Ni/Ru-based dual catalysts
- Vol. 51, Issue 6, Pages: 23-29(2026)
- 作者机构：
  
  1.北京科技大学能源与环境工程学院，北京 100083
  2.北京科技大学顺德创新学院，广东佛山 528300
  3.中国北方发动机研究所，天津 300405
  4.中国北方发动机研究所车用动力系统全国重点实验室，天津 300405
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20250289
  CLC： TQ032.4
- Received：01 July 2025，
  
  Revised：2025-08-13，
  
  Published：25 June 2026
- 稿件说明：
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王豫飞,罗春欢,白伟等.Ni/Ru基双催化剂两段式CO选择性甲烷化实验研究[J].低碳化学与化工,2026,51(6):23-29.

WANG Yufei,LUO Chunhuan,BAI Wei,et al.Experimental study on two-stage selective methanation of CO over Ni/Ru-based dual catalysts[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(6):23-29.
王豫飞,罗春欢,白伟等.Ni/Ru基双催化剂两段式CO选择性甲烷化实验研究[J].低碳化学与化工,2026,51(6):23-29. DOI： 10.12434/j.issn.2097-2547.20250289.

WANG Yufei,LUO Chunhuan,BAI Wei,et al.Experimental study on two-stage selective methanation of CO over Ni/Ru-based dual catalysts[J].Low-Carbon Chemistry and Chemical Engineering,2026,51(6):23-29. DOI： 10.12434/j.issn.2097-2547.20250289.

摘要

针对碳基燃料重整氢气中CO深度脱除以及Ru基催化剂非贵金属替代问题，提出了基于Ni/Ru基双催化剂两段式CO选择性甲烷化（CO-SMET）技术。分别制备了Cl负载的Ru和Ni基催化剂，在入口气体为H

/CO

/CO（体积分数分别为75.0%、24.5%和0.5%）条件下，研究了其CO-SMET催化性能和CO甲烷化选择性。结果表明，一段式CO-SMET中，Cat-10Ni5Cl出口CO浓度（物质的量分数，下同）为17 μmol/mol，温度为310 ℃，CO甲烷化选择性为75.1%；Cat-1.5Ru4.5Cl出口CO浓度为32 μmol/mol，温度为250 ℃，CO甲烷化选择性为65.9%。Ni/Ru基双催化剂两段式CO-SMET出口CO浓度为8 μmol/mol，第一段和第二段温度分别为280 ℃和230 ℃，CO甲烷化选择性为80.0%。Cat-10Ni5Cl（作为第一段催化剂）在较低温度具有高CO甲烷化选择性，Cat-1.5Ru4.5Cl（作为第二段催化剂）在低温下具有高活性，两段式CO-SMET能够实现CO深度脱除，以实现Ru基贵金属催化剂的部分替代。

Abstract

To address the challenges of deep CO removal from hydrogen produced by carbon-based fuel reforming and the replacement of Ru-based noble metal catalysts with non-noble meta

a two-stage selective methanation of CO (CO-SMET) technology over Ni/Ru-based dual catalysts was proposed. Ru-based and Ni-based catalysts with Cl loading were prepared

and their CO-SMET catalytic performances and CO methanation selectivities were investigated under inlet gas H

/CO

/CO (volume fractions of 75.0%

24.5% and 0.5%

respectively). The results show that

in one-stage CO-SMET

the outlet CO concentration (mole fraction

the same below) is 17 μmol/mol

and the temperature is 310 ℃

and the CO methanation selectivity is 75.1% over Cat-10Ni5Cl

whereas the outlet CO concentration is 32 μmol/mol

and the temperature is 250 ℃

and the CO methanation selectivity is 65.9% over Cat-1.5Ru4.5Cl. In the two-stage CO-SMET over Ni/Ru-based dual catalysts

the outlet CO concentration is 8 μmol/mol

and the temperatures of first-stage and second-stage are 280 ℃ and 230 ℃

respectively

with the CO methanation selectivity of 80.0%. Cat-10Ni5Cl

(as the first-stage catalyst) exhibits high CO methanation selectivity at lower temperatures

and Cat-1.5Ru4.5Cl

(as the second-stage catalyst) exhibits high activity at low temperatures. Two-stage CO-SMET enables deep CO removal and partially replaces Ru-based noble metal catalysts.

关键词

Keywords

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