Hydrogenation Reaction Mechanism of Sumiyoshi Coal

概要

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Sumiyoshi coal was hydrogenated under 220-230 kg/cm<SUP>2</SUP> hydrogen pressure at 400°C with red mud-sulfur catalyst and without vehicle oil.The nominal reac-tion time was changed from 4 to 155minute.The reaction product was fractionated by n-hexane and benzene into five fractions such as oil 1, oil 2, asphaltene 1, asphaltene 2 and organic benzene insolubles.The structural parameters of each fraction were calculated by NMR spectroscopy and elemental composition.In the proceeding reaction, from the change of yield of these fractions, the mean molecular weight and structural parameters, the mechanism of the hydrogenation was investigated and surmized as follows.<BR>The chemical reaction occuring in the reaction course, it was noted that the cleavage of the linkage between the structural unit, dealkylation and the hydrogenation of aromatic ring.It was also noted that the oxygen containing structure of Sumiyoshi coal was consi-dered as relatively refractory part for hydrogenation.
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