Study on coal liquefaction characteristics of Chinese coals |
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| Affiliation: | 1. Energy and Environment Technology Development Department, New Energy and Industrial Technology Development Organization, SUNSHINE 60, 30F, 1-1, 3-Chome Higashi-Ikebukuro, Toshima-Ku, Tokyo 170-6028, Japan;2. Mitsui Engineering and Shipbuilding Co., Ltd, 6-4, Tsukiji 5-Chome, Chuo-Ku, Tokyo 104-8489, Japan;3. Beijing Research Institute of Coal Chemistry, CCRI No. 5, Qingniangou Road, Hepingli, Beijing 100013, People''s Republic of China;1. School of Natural Resources, Davis College of Agriculture, Natural Resources and Design, West Virginia University, 322 Percival Hall, Morgantown, WV 26506-6125, USA;2. Department of Chemical Engineering, Benjamin M. Statler College of Engineering and Mineral Resources, West Virginia University, 395 Evansdale Drive, Morgantown, WV 26506-6102, USA;1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi Province 030001, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. National Energy Center for Coal to Liquids, Synfuels China Co., Ltd., Beijing 101400, China;4. State Key Laboratory of Chemical Recourse Engineering, Beijing University of Chemical Technology, Beijing 100029, China;1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China;2. Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China;1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China;2. Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China |
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| Abstract: | The New Energy and Industrial Technology Development Organization (NEDO) has implemented the collaborative research work with China Coal Research Institute (CCRI) on the liquefaction of Chinese coals for about 20 years. A total of 53 runs in a 0.1 t/d bench scale coal liquefaction plant installed at the CCRI were made on 27 kinds of coal selected among coals existing throughout China. The bench plant was operated in a direct hydrogenation (DH) mode and NEDOL mode. In the DH mode, 25 MPa of reaction pressure was employed with decrystallized anthracene oil used as the solvent, while 17 MPa of reaction pressure was employed and hydrogenated solvent was used in the NEDOL mode. This study confirmed that the NEDOL mode, which uses comparatively mild in liquefaction conditions, can liquefy each coal with the high oil yield more efficiently, and is capable of liquefying about 60% of inertinite in high inertinite coals. |
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