Compositions of solvent-extracts of a Polish bituminous coal |
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| Authors: | Janusz Pajak Anna Marzec Dieter Severin |
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| Affiliation: | 1. Department of Petroleum and Coal Chemistry, Polish Academy of Sciences, 1 May Street 62, 44-100 Gliwice, Poland;1. Institut für Erdölforschung, Walther-Nernst-Str. 7, D-3392 Clausthal-Zellerfeld, FRG |
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| Abstract: | The compositions of acetone, tetrahydrofuran and pyridine extracts from a bituminous coal were studied using mass spectrometry and the main components were identified. The compositions of the extracts were similar, as predicted by the electron-donor-acceptor mechanism of coal extraction. Different extract yields are due mainly to differences in the fraction of high molecular weight components in the extracts. |
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| Keywords: | coal solvent extraction EDA mechanism |
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