Complete removal of carbon monoxide in hydrogen-rich gas stream through methanation over supported metal catalysts |
| |
| Affiliation: | 1. Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China;2. Collaborative Innovation Center of Renewable Energy Materials, Guangxi University, Nanning 530004, China;3. Engineering Research Center of Materials-Oriented Chemical Engineering of Xinjiang Production and Construction Corps, Shihezi 832003, China;4. Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region, Shihezi 832003, China;1. State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China;2. University of Chinese Academy of Sciences, Beijing 100049, PR China |
| |
| Abstract: | Complete removal of CO by methanation in H2-rich gas stream was performed over different metal catalysts. Ni/ZrO2 and Ru/TiO2 were the most effective catalysts for complete removal of CO through the methanation. These catalysts can decrease a concentration of CO from 0.5% to in the gases formed by the steam reforming of methane with a significantly low conversion of CO2 into methane. Catalytic activities of supported Ni and Ru strongly depended on the type of supports, i.e. ZrO2 for Ni and TiO2 for Ru are suitable supports for the methanation of CO. The effect of catalytic supports on methanation of CO could be explained by particles sizes of Ni and Ru metal. Catalytic activity of supported Ru catalysts for the complete removal of CO through methanation became higher as particle sizes of Ru metal became smaller, while Ni metal particles with relatively larger diameters were effective for the reaction. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
