Most of the processed crude oil is processed from the Middle East.In order to facilitate further processing,it is very important to understand the components of the crude oil,especially the characterization of the residual compounds.Saudi Arabia intermediate atmospheric residue was subjected to supercritical fluid extraction fractionation(SFEF)and separated into 4 extractable fractions and an unextractable end-cut.The basic physicochemical properties were obtained by routine analysis means.The polar compoun...
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