The Application Research of Multi-element Simulated Distillation by Gas Chromatography-Atomic Emission Detection in Geology

Key words: 
• multi-element simulated distillation /
• gas chromatography-atomic emission detection

Abstract: The study of multi-element simulated distillation for C, H, S, N, Ni, V and Fe in crude oil by gas chromatography-atomic emission detection was introduced. The distortion of various boiling point samples for injector insert of different shapes was examined, the effects of non-linear response and correction of H element on accurate detection of simulated distillation were also discussed. The correction curve of boiling point of n-alkane ranged from n-C₁₂ to n-C₉₈ were established, the calibration factor of each element was obtained. The result indicates that the measuring error of boiling point for n-alkane was than 1℃, the simulated distillation data of standard samples were in good agreement with the standard values. The results show that characters of multi-element simulated distillation of crude oil which have abundant information were obvious, the characters have comparable data of benchmark, all kinds of petroleum can be elucidated in detail, their source and kind can be confirmed too, therefore, the new means that can distinguish the comparable mode between oil and oil, oil and source was obtained.