Thursday, December 27, 2012

Investigation of the oxidative desulfurization of LCO model mixture by GC-MS and FTIR spectroscopy

CATEGORY: DESULFURIZATION
Fuel Processing Technology, Volume 101, September 2012, Pages 101–105
Investigation of the oxidative desulfurization of LCO model mixture by GC-MS and FTIR spectroscopy
Vesislava Toteva, Anton Georgiev, Liliana Topalova
University of Chemical Technology and Metallurgy, 8 “St. Kliment Ohridski” Blvd., Sofia 1756, Bulgaria
Abstract
Describes oxidative desulfurization of a model mixture of fluid-catalytic-cracked light cycle oil (LCO). Oxidations of the sulfur compounds were monitored by FTIR spectroscopy. Oxidized sulfur compounds and degree of desulfurization by oxidation were determinad by gas chromatography-mass spectroscopy (GC-MS).
Researchers determined that after oxidation and proper extraction process about 90% of the highly refractive by HDS (hydrodesulfurization) sulfur compound like 4,6-Dimethyl-dibenzothiophene (4,6-DMDBT) is removed from the oxidized model mixture.
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