Development of Ni catalysts for tar removal by steam gasification of biomass |
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| Affiliation: | 1. Institute of Material Sciences, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8573, Japan;2. Department of Materials Science, Faculty of Engineering, Tottori University, Koyama-cho Minami, Tottori 680-8552, Japan;3. Department of Applied Chemistry, Faculty of Engineering, Kanagawa University, 3-27-1, Rokkakubashi, Kanazawa-ku, Yokohama, Kanagawa 221-8686, Japan;1. Laboratory for Nano-minerals and Environmental Materials, School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China;2. Department of Chemistry, University of Connecticut, Storrs, CT 06269-3060, United States;3. Guangzhou Institute of Geochemistry, Chinese Academy of Science, Guangzhou, China;4. Institute of Materials Science, University of Connecticut, Storrs, CT 06269, United States;1. School of Chemical Engineering, Anhui University of Science and Technology, 232001 Huainan, PR China;2. School of Mining and Safety Engineering, Anhui University of Science and Technology, 232001 Huainan, PR China;1. Department of Environmental Science and Technology, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, G5-8, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan;2. Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, PR China;3. Laboratory of Waste-coexsistence Engineering, Department of Environmental Engineering, Osaka Institute of Technology, Asahi-ku, Osaka 533-8585, Japan;1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640, China;2. Nanjing Tech University, Nanjing, 211816, China;3. Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China;4. School of Materials Science and Hydrogen Energy, Foshan University, China;5. CAS Key Laboratory of Renewable Energy, Guangzhou, 510640, China;6. Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640, China |
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| Abstract: | Catalytic performance of Ni/CeO2/Al2O3 catalysts prepared by a co-impregnation and a sequential impregnation method in steam gasification of real biomass (cedar wood) was investigated. Especially, Ni/CeO2/Al2O3 catalysts prepared by the co-impregnation method exhibited higher performance than Ni/Al2O3 and Ni/CeO2/Al2O3 prepared by the sequential impregnation method, and the catalysts gave lower yields of coke and tar, and higher yields of gaseous products. The Ni/CeO2/Al2O3 catalysts were characterized by thermogravimetric analysis, temperature-programmed reduction with H2, transmission electron microscopy and extended X-ray absorption fine structure, and the results suggested that the interaction between Ni and CeO2 became stronger by the co-impregnation method than that by sequential method. Judging from both results of catalytic performance and catalyst characterization, it is found that the intimate interaction between Ni and CeO2 can play very important role on the steam gasification of biomass. |
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