Effect of Physicochemical Characteristics of Sorbents on the Quality of the Separation of Hydrocarbon Groups by Liquid Adsorption Chromatography

Abstract

The hydrocarbon group-type composition (so-called SARA composition) of petroleum and petroleum product samples was determined using various procedures of liquid adsorption chromatography and corresponding commercial sorbents (alumina and silica) of foreign and domestic production. The composition and properties of commercial sorbents were studied by electron microscopy and laser diffraction. No significant effect of the physicochemical characteristics of the sorbents on the quality of the separation of hydrocarbon groups of the analyzed petroleum samples was demonstrated based on the statistical processing of the results obtained by the selected analytical methods.