低碳化学与化工2026，Vol.51Issue(6)：23-29,7.DOI:10.12434/j.issn.2097-2547.20250289
Ni/Ru基双催化剂两段式CO选择性甲烷化实验研究
Experimental study on two-stage selective methanation of CO over Ni/Ru-based dual catalysts
王豫飞 1罗春欢 2白伟 3董江峰 3吴波 4刘丽峰 4杨畅畅 1苏庆泉1
作者信息
- 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 能源与环境工程学院,北京 100083||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||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
- 4. 中国北方发动机研究所,天津 300405
- 折叠
摘要
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 metals,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 H2/CO2/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
重整氢气/甲烷化/CO脱除/催化剂Key words
reforming hydrogen/methanation/CO removal/catalysts分类
化学化工引用本文复制引用
王豫飞,罗春欢,白伟,董江峰,吴波,刘丽峰,杨畅畅,苏庆泉..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):23-29,7.
