Based on the existing problems in characterization of petroleum fractions with pseudo-components and real-components methods,a new real-components method was proposed,by which the fractions in narrow distillation ranges were characterized with some real-components contained structrure informations according to the properties of the fractions in different distillation ranges.

New and reliable empirical correlations for predicting the average boiling points of petroleum fractions,which include mass average boiling point, molar average boiling point, cubic average boiling point and mid-average boiling point,were proposed and the deviation was analyzed.

Structural parameters, such as 1 H NMR spectrum, hydrogen and carbon atom contents,for 20 petroleum fractions from two crude oils were determined by using nuclear magnetic resonance (NMR) spectroscopy and elemental analysis.

Study on mathematic models for three distillation curves of petroleum fractions;

Mathematical model of inter-conversion among ASTM,TBP and EFV curves for petroleum fractions at atmospheric pressure

Chemical method, chromatography and the hyphenation of chromatography and mass spectrometry are often used to analyze target compounds and quantify the aromatics in different petroleum fractions.

A nonequilibrium nonlinear dynamic model of petroleum fractionators is developed in this paper by directly taking into account the mass and heat transfer between liquid and vapor in the tower.

The result showed under the given conditions of naphtha fraction (60 - 901) as extraction dissolvent, the extraction times of 2, the optimum dissolvent dosing ratio of 1:1, the temperature o.