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SEPARATION AND CHROMATOGRAPHIC ANALYSIS OF GAS OIL

Tatjana Tomić ; INA d.d. Zagreb
Nada Uzorinac Nasipak ; INA d.d. Zagreb

Sažetak

Knowing the detailed hydrocarbon composition of the gas oil from visbreaking process used for blending of diesel fuel is very important for foreseeing the final commercial product quality and its ecological properties. Gas oil is complex mixture of different hydrocarbon groups: paraffines, naphtenes, olefins, aromatics, polar compounds. Their total content and relation control final product ecological and quality properties. Different chromatographic techniques (HPLC, GC, GC/MS, TLC) were used for determination of hydrocarbon composition in oil products. Complete hydrocarbon group separation is hard to reach because of the numerous components in one specific group and complex structure composition.
HPLC prefractionation step of gas oil was performed on the in-house made silver – modified silica gel column. On silver column unsaturated hydrocarbons retain longer than saturated due to double-bond π electrons. By fractionation saturated and unsaturated fraction was separated and further analysed by normal – phase high performance liquid chromatography hyphenated by UV/DAD detection.

Ključne riječi

visbreaking gasoil; olefine parafine separation; content to properties relation; high performance liquid chromatography HPLC; stationary phase in chromatography; UV/DAD Ultra violet diode array detection spectrometry

Hrčak ID:

43460

URI

https://hrcak.srce.hr/43460

Datum izdavanja:

30.9.2009.

Podaci na drugim jezicima: hrvatski

Posjeta: 2.470 *