Supercritical fluid extraction of two Indian coals |
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| Affiliation: | 1. School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, PR China;2. Theoretical Physics Department, National Research Centre, El-Buhouth Str., Dokki, Giza, 12622, Egypt;3. Electron Microscope and Thin Films Department, National Research Centre, El-Buhouth Str., Dokki, Giza, 12622, Egypt;4. School of Physical Science and Technology, Nanjing Normal University, Nanjing 210023, PR China;5. Computational Condensed Matter Physics Laboratory, RIKEN, Wako, Saitama 351-0198, Japan;1. College of Environment, Hohai University, Nanjing 210098, PR China;2. Department of Earth and Space Science and Engineering, York University, Toronto, Ontario M3J 1P3, Canada;3. National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing, Jiangsu 210018, PR China |
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| Abstract: | Results on the supercritical fluid extraction of two Indian coals (Ranigunj and Godavari Valley Coal fields) are reported using toluene as solvent. The effect of extraction time on supercritical toluene dissolution of these coals was studied in a tubular reactor, in a semi-continuous mode operating at constant operating conditions of 673 K and 9.8 MPa. Coal conversions in the range of 18–21% and the oil contents of the extracts varying from 40 to 75% were obtained. |
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