Partial Oxidation and Dry Reforming of Methane Over Ca/Ni/K(Na) Catalysts |
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Authors: | Abolghasem Shamsi |
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Affiliation: | (1) U.S. Department of Energy, National Energy Technology Laboratory (NETL), P.O. Box 880, 3610 Collins Ferry Road, Morgantown, WV, 26505-0880 |
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Abstract: | Partial oxidation and dry reforming of methane to synthesis gas over Ca/Ni/K(Na) catalysts have been studied. Effects of temperature, pressure, and oxygen/methane ratios on catalytic activity, selectivity, and carbon formation have been determined. Also reforming of 13CH4 in the presence of CO2 and Temperature-Programmed Oxidation (TPO) of deposited carbon after the reaction indicated that both methane and CO2 contribute to carbon formation. The TPO of deposited carbon on Ca/Ni/K catalyst showed that the catalyst consumed a significant amount of oxygen, only a fraction of which was consumed by carbon species on the surface, indicating that the surface oxygen plays a significant role in oxidizing and removing carbon species from the catalyst surfaces |
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Keywords: | synthesis gas dry reforming catalysis carbon formation |
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