STRUCTURAL STUDIES OF SHORT PATH DISTILLATES AND SUPERCRITICAL FLUID EXTRACT OF PETROLEUM SHORT RESIDUE BY NMR SPECTROSCOPY |
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| Authors: | I.D. Singh V. Ramaswamy V. Kothiyal L. Brouwer D. Severin |
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| Affiliation: | 1. Indian Institute of Petroleum , Dehra Dun, 248005, INDIA;2. German Petroleum Institute , SPB 134 Erd?ltechnik - Erd?lchemie, Walther-Nerast-Straβe 7, Clausthal-Zellerfeld, 3392, Federal Republic of Germany |
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| Abstract: | Abstract Four short-path distillates obtained at different evaporator temperatures (240, 270, 300, and 330° C) and a supercritical fluid extract (with CO2 as solvent) of petroleum short residue (North Gujarat Mix) have been separated into saturates and aromatics. Each fraction of all the said samples has been studied by 1H- and 13C-NMR spectrometry and the distributions of various types of hydrogens and carbons are reported. Several reliable average structural parameters have been computed and their relative variation is discussed. |
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