Hydrocarbon type fractionation of coal hydrogenation products by gradient elution chromatography on alumina column

A technique based on adsorption chromatography using a benzene-n-pentane solvent gradient has been developed for the quantitative fractionation of the neutral oil fraction derived from coal hydrogenation products boiling above 250°C. By this method the neutral oil is fractionated into saturates, mon...

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Bibliographic Details
Published inFuel processing technology Vol. 18; no. 2; pp. 107 - 117
Main Authors Chowdhury, P.B., Ghosh, T.K., Gun, S.R.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 1988
Elsevier Science
Subjects
Applied sciences
Energy
Exact sciences and technology
Fuel processing. Carbochemistry and petrochemistry
Fuels
Solid fuel processing (coal, coke, brown coal, peat, wood, etc.)
Group composition
Fractionation
Oil
Analysis method
Hydrocarbon
Carbochemistry
Reaction product
Aluminium
Column chromatography
Hydrogenation
Adsorption chromatography
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Summary:A technique based on adsorption chromatography using a benzene-n-pentane solvent gradient has been developed for the quantitative fractionation of the neutral oil fraction derived from coal hydrogenation products boiling above 250°C. By this method the neutral oil is fractionated into saturates, monoaromatics, two classes of hydroaromatics, diaromatics, polyaromatics and polar constituents. UV monitoring of the effluents, while the separation is in progress, has been used to ensure proper choice of the solvent for attaining optimum separation. The alumina column retains its activity and gives reproducible results even after twenty experiments.
ISSN:0378-3820
1873-7188
DOI:10.1016/0378-3820(88)90090-2