石油化工Issue(11)：1388-1395,8.
气相色谱-飞行时间质谱表征馏分油芳烃分子组成的馏程分布
Distillation Range Distribution of Aromatic Hydrocarbon Molecular Composition in Distillate Oil Characterized by Gas Chromatography-Time of Flight Mass Spectrometry
王乃鑫 1刘泽龙 1汪燮卿 1祝馨怡 1田松柏1
作者信息
- 1. 中国石化 石油化工科学研究院，北京 100083
- 折叠
摘要
Abstract
A method for the analysis of distillation range distribution of aromatic hydrocarbon molecular composition in distillate oil by gas chromatography-time of fl ight mass spectrometry was established. The chromatogram of the aromatic was divided into diff erent distillation ranges according to the fi tting curve of“boiling point-GC retention time”. The distillation range distributions of the molecular compositions, average molecular weights and average molecular structures of sample Y were characterized. The results showed that,the average molecular weights of the every fraction were linear with the distillation temperature and the correlation coeffi cient was 0.995 4,which made the prediction of the average relative molecular weight of every distillation fraction possible. It was found that,in the same distillation fraction,the higher the unsaturation degree,the lower the average molecular weight and the average carbon number,and the shorter the side chains. The method can characterize petroleum and its products in molecular level.关键词
气相色谱-飞行时间质谱/馏分油/芳烃分子组成/馏程分布Key words
gas chromatography-time of flight mass spectrometry/distillate oil/aromatic hydrocarbon molecular composition/distillation range distribution分类
化学化工引用本文复制引用
王乃鑫,刘泽龙,汪燮卿,祝馨怡,田松柏..气相色谱-飞行时间质谱表征馏分油芳烃分子组成的馏程分布[J].石油化工,2015,(11):1388-1395,8.
