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Comparison of nitrogen bases generated via HCl precipitation and ion exchange chromatography |
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| Authors: | Dennis H. Finseth Zbigniew T. Przybylski Charles E. Schmidt |
| Affiliation: | 1. US Department of Energy, Pittsburgh Energy Technology Center, PO Box 10940, Pittsburgh, Pennsylvania, USA;2. Institute of Petroleum Processing, ul. Lukasiewicza 1, Krakow, Poland |
| Abstract: | Nitrogen base fractions were prepared from a heavy coal-derived liquid via two commonly accepted laboratory procedures and partially characterized. Significant differences in the composition of the two fractions suggest strongly that extreme caution should be exercised in interpreting and comparing the results of base characterization studies in which different base isolation procedures are used. |
| Keywords: | coal-derived liquids nitrogen precipitation methods chromatography |
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