Ethanol oxidative steam reforming over Ni-based catalysts |
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| Affiliation: | 1. Departament d’Enginyeria Quimica, Escola Tècnica Superior d’Enginyeria Química, Universitat Rovira i Virgili, Campus Sescelades, 43007 Tarragona, España, Spain;2. Institut de Recherches sur la Catalyse, CNRS, 69626 Villeurbanne, France;1. Departamento de Ingeniería Química, Universidad del País Vasco UPV/EHU, Apartado 644, 48080 Bilbao, Spain;2. Departamento de Ingeniería Química y Medio Ambiente, Universidad del País Vasco UPV/EHU, Paseo Rafael Moreno “Pitxitxi” 3, 48013 Bilbao, Spain;1. Facultad de Química, UdelaR, Laboratorio de Fisicoquímica de Superficies, DETEMA, Gral. Flores 2124, 11800 Montevideo, Uruguay;2. Facultad de Química, UdelaR, Cryssmat-Lab, DETEMA, Gral. Flores 2124, 11800 Montevideo, Uruguay;1. Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand;2. Department of Chemical Engineering, Faculty of Engineering, King Mongkut''s University of Technology North Bangkok, Bangkok, 10800, Thailand;3. Department of Chemical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom, 73000, Thailand;4. The Joint Graduate School of Energy and Environment, King Mongkut''s University of Technology Thonburi, Bangkok, 10140, Thailand;5. Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Collaboratorative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China;1. Department of Mechanical Engineering, Indian Institute of Technology Madras, Chennai, 600036, Tamil Nadu, India;2. Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, Tamil Nadu, India;3. Department of Physics, Indian Institute of Technology Madras, Chennai, 600036, Tamil Nadu, India;4. DST-Solar Energy Harnessing Centre, Indian Institute of Technology Madras, Chennai, 600036, Tamil Nadu, India;1. Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India;2. Department of Chemical and Biochemical Engineering, University of Saskatchewan, Saskatoon, SK S7N5C5, Canada |
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| Abstract: | Oxidative steam reforming of ethanol for hydrogen production in order to feed a solid polymer fuel cell (SPFC) has been studied over several catalysts at on board conditions (a molar ratio of H2O/EtOH and of O2/EtOH equal to 1.6 and 0.68 respectively) and a reforming temperature between 923 and 1073 K. Two Ni (11 and 20 wt.%)/Al2O3 catalysts and five bimetallic catalysts, all of them supported on Al2O3, were tested. The bimetallic catalysts were Ni (approximately 20 wt.%) based catalysts doped with Cr (0.65 wt.%), Fe (0.6 wt.%), Zn (0.7 wt.%) or Cu (0.6 and 3.1 wt.%). The results in terms of H2 production and CO2/COx ratio obtained over Ni-based catalysts supported on Al2O3 are compared with those obtained over Ni–Cu/SiO2 and Rh/Al2O3 catalysts reported in our previous works. Tendencies of the product selectivities are analyzed in the light of the reaction network proposed. |
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