Hydrogen production by catalytic methane decomposition over yttria doped nickel based catalysts |
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| Affiliation: | 1. Chemical Engineering Department, Yildiz Technical University, Davutpasa Campus, Topkapi, 34210, Istanbul, Turkey;2. Department of Energy Science and Technology, Turkish-German University, Beykoz, 34820, Istanbul, Turkey;1. PCeIM, Centro de Nanociencias y Nanotecnología–UNAM, CP. 22860 Ensenada, B.C., Mexico;2. Centro de Investigación y Desarrollo Tecnológico en Electroquímica, C.P. 76703 Querétaro, Mexico;3. Sección de Estudios de Posgrado e Investigación, UPIITA, Instituto Politécnico Nacional, Av. IPN 2580, 07340 Ciudad de México, Mexico;4. Lab. Catálisis y Materiales. IPN–ESIQIE, Edificio 8, tercer piso, Zacatenco 07738, Mexico;5. Centro de Nanociencias y Nanotecnología–UNAM, CP. 22860 Ensenada, B.C., Mexico;1. Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 11421, Riyadh, Saudi Arabia;2. Catalytic Processes and Materials, MESA+ Institute for Nanotechnology, University of Twente, 7500 AE Enschede, The Netherlands;1. Catalyst and Advanced Materials Research Laboratory, Chemical Engineering Department, Faculty of Engineering, University of Kashan, Kashan, Iran;2. Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan, Iran |
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| Abstract: | Catalytic methane decomposition can become a green process for hydrogen production. In the present study, yttria doped nickel based catalysts were investigated for catalytic thermal decomposition of methane. All catalysts were prepared by sol-gel citrate method and structurally characterized with X-ray powder diffraction (XRD), scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS) and Brunauer, Emmet and Teller (BET) surface analysis techniques. Activity tests of synthesized catalysts were performed in a tubular reactor at 500 ml/min total flow rate and in a temperature range between 390 °C and 845 °C. In the non-catalytic reaction, decomposition of methane did not start until 880 °C was reached. In the presence of the catalyst with higher nickel content, methane conversion of 14% was achieved at the temperature of 500 °C. Increasing the reaction temperature led to higher coke formation. Lower nickel content in the catalyst reduced the carbon formation. Consequently, with this type of catalyst methane conversion of 50% has been realized at the temperature of 800 °C. |
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| Keywords: | Methane Catalytic decomposition Hydrogen production Yttria catalyst |
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