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- W2013267506 abstract "Abstract A pitch coke was impregnated with nickel nitrate and some additives and gasified in an atmospheric hydrogen flow, to investigate the possibility of promoting nickel-catalyzed hydrogasification by the addition of foreign components. Alkaline earths and aluminum nitrate, which were not direct catalysts for the hydrogasification of carbon, enhanced methane formation markedly, while nitrates of potassium, chromium, and iron and also potassium carbonate had almost no effect. Additives which are effective are believed to be in the form of an oxide. In the presence of nickel, methane is formed at two separate regions: 400–700 °C and above 750 °C. All the promoters increased conversion in the lower temperature reaction while only calcium salt enhanced it in the higher temperature reaction. Promoters, especially magnesium, extensively suppressed the sintering of nickel. The enhancement of methane formation at lower temperatures is ascribed to the increased dispersion of nickel. Possible reasons for the promotions are discussed." @default.
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- W2013267506 date "1983-05-01" @default.
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- W2013267506 title "Promotion of nickel-catalyzed hydrogasification of carbon by alkaline earth compounds" @default.
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- W2013267506 doi "https://doi.org/10.1016/0021-9517(83)90161-6" @default.
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