Swelling of coal in relation to solvent electron-donor numbers |
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Authors: | Jan Szeliga Anna Marzec |
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Affiliation: | Department of Petroleum and Coal Chemistry, Polish Academy of Sciences, 1 Maja 62 St, 44-100 Gliwice, Poland |
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Abstract: | Twenty solvents characterized by electron-donor and electron-acceptor number and solubility parameter were used to study the swelling of a hvB coal. It was found that extent of swelling could be correlated with solvent electron-donor number. Mechanisms of swelling include solvent-induced breakage of electron-donor—acceptor interactions between coal macromolecules. |
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Keywords: | coal electron donors swelling |
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