QUANTITATIVE COMPONENT ANALYSIS OF CRUDE OILS AND ОIL PRODUCTS BY DIFFERENTIAL SCANNING CALORIMETRY COUPLED WITH THERMOGRAVIMETRY
Qualitative component analysis of hydrocarbon mixtures is shown possible by application of method of differential scanning calorimetry (DSC). Quantitative component analysis becomes possible in case of combining of DSC method with thermogravimetry (TG). Experimental conditions, providing for sample complete oxidation during its heating, leads to successive oxidation and removal of paraffin, oils, heavy aroma and resins out of oil heavy residue. Crude oils of different chemical classes, such as paraffin, naphthene and naphthene-paraffin, have been studied and rules of their qualitative and quantitative analysis by TG and DSC methods have been formulated.