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大港减压渣油被超临界萃取技术分馏成F1~F16个级分。用商品级的石蜡作为外标,用GC/MS对这些级分进行定性和定量分析,分析结果显示,用GC/MS检测的主要成分为C15到C43的直链烷烃、包含藿烷、萜烯和含氧有机化合物等,这些化合物的浓度从F1到F16明显减少。HPLC/MS将被用来分析级分中分子量大、极性大的物种的分子组成。
Dagang vacuum residue by supercritical fluid extraction technology fractionation F1 ~ F16 fractions. Commercial grade paraffin waxes were used as external standards to perform qualitative and quantitative analysis of these fractions by GC / MS. The results showed that the main components detected by GC / MS were C15 to C43 linear alkanes, including hopane, terpene And oxygen-containing organic compounds, etc. The concentration of these compounds is significantly reduced from F1 to F16. HPLC / MS will be used to analyze the molecular composition of species with large molecular weight and high polarity.