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Isothermal Stage Kinetics of Direct Coal Liquefaction for Shenhua Shendong Bituminous Coal
- Jiang, Hongbo, Wang, Xiuhui, Shan, Xiangen, Li, Kejian, Zhang, Xuwen, Cao, Xueping, Weng, Huixin
- Energy & Fuels 2015 v.29 no.11 pp. 7526-7531
- anthracenes, catalysts, coal, kinetics, liquefaction, models, oils, solvents, temperature
- To study the direct coal liquefaction in the isothermal stage of Shenhua Shendong bituminous coal, the direct coal liquefaction with an iron-based catalyst was carried out in a 0.01 ton/day continuous tubular facility in the temperature range of 445–465 °C, with hydrogenated anthracene and wash oil as the solvent. An eight-lump kinetic model of the isothermal stage was proposed, and the kinetic parameters were estimated. The result showed that, in the isothermal stage, the oil was mainly obtained from pre-asphaltene and asphaltene (PAA) rather than from coal directly. The model was valid for the isothermal stage of direct coal liquefaction.