中文摘要：

采用全二维气相色谱质谱联用仪，通过优化柱温、线速度、调制周期等条件，建立了吸热燃料及其裂解产物的定性定量分析方法。该方法利用GC×GC—MS对吸热燃料及裂解产物的族组成、正构烯烃、代表性的芳烃等进行定性分析，并根据有效碳数法利用GC×GC—FID进行定量分析。族组成分析结果表明，当裂解温度达到684℃时，液相产物中链烷烃的含量开始迅速降低，芳烃和烯烃的含量开始急剧增加。对特定化合物的定量分析结果表明，正构烯烃和芳烃的含量均随着裂解温度的升高而增大，与族组成中相应的族类变化趋势一致，体现了燃料裂解规律的变化趋势。

英文摘要：

A method was established for identifying and quantitating jet fuel and its supercritical cracking products by comprehensive two-dimensional gas chromatography coupled with MS detector. The effects of main chromatographic conditions such as initial oven temperature, linear velocity and modulation period on the separation of supercritical cracking products were discussed. The group composition of the jet fuel and its cracking products together with the identification of n-olefins and aromatics were analyzed based on GC x GC-MS. Moreover, the corresponding quantitative determination was achieved with the normalization and the effective carbon number of GC x GC- FID. The result of hydrocarbon group compositions showed that the content of paraffins began to decrease rapidly and the content of aromatics and olefins began to increase sharply when the cracking temperature reached 684 ~C. The contents ofn-olefms and aromatics both increased with increasing pyrolysis temperature, which is in well accordance with result of hydrocarbon group compositions and reflects the changing trend of fuel cracking.