Compound-class fractionation of coal-derived liquids by extrography
✍ Scribed by Jaroslav Černý; Helena Pavlíková; Vladimír Machovič
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 634 KB
- Volume
- 69
- Category
- Article
- ISSN
- 0016-2361
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Compound classes in coal liquids were investigated by thin-layer chromatography coupled with a flame ionization detector (t.1.c.f.i.d.). Individual t.1.c. peaks for coal liquids were identified as paraffins, aromatics, polar compounds and more strongly polar compounds or asphaltenes in order of incr
Coal-derived liquids, obtained from pilot plants and bench-scale reactors, have been separated by gel permeation chromatography into aromatic, phenolic, and asphaltenic fractions, where asphaltenes and long-chain hydrocarbons are in the same fraction. The chromatographic system uses 10 nm PStyragel