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Chromatographic and n.m.r. analysis of coal liquefaction products |
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| Authors: | Frank K Schweighardt HL Retcofsky Robert A Friedel |
| Affiliation: | U.S. Energy Research and Development Administration, Pittsburgh Energy Research Center, 4800 Forbes Avenue, Pittsburgh, Pa. 15213, USA |
| Abstract: | An efficient Chromatographic separation scheme has been developed to characterize the SYNTHOIL hydrodesulphurization coal liquefaction product. Chromatographic fractions were analysed by nuclear magnetic resonance to determine carbon and hydrogen aromatic/aliphatic distribution ratios of major molecular types. The SYNTHOIL product and its coal-derived asphaltenes were found to contain intermolecularly hydrogen-bonded complexes that may affect the physical properties of the oil. |
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