煤系重质油的仪器分析及系统考察Ⅰ.烃族分析

Instrumental Analysis and Systematic Investigation on Heavy Oils from Coal Ⅰ. Analysis of Hydrocarbon Class Composition

采用薄层棒色谱／氢火焰离子化检测（TLC／FID），对煤系重质油的烃族组成分析进行了研究。确定了最佳分析条件、烃族的定量因子等。在此基础上，对山西省焦化厂的典型重质油产品进行了系统测定。

A study on the analysis of hydrocarbon class composition was carried out by thin layer chromatography with flame ionizaion detection(TLC/FID). The optimum analytical conditions, experimental reproduction, standard deviation, quantitative correction factors of hydrocarbon class and so on were investigated.The instrument used were Mark Ⅲ, LATROSCAN TH-10 analyzer, thin layer rod was a CHROMAROD silica rod (150 mm × 0. 9 mm i. d). A satisfactory TLC/FID analytical method was established after a series of experiments and investigation. Typical heavy oils from coal were investigated based on this method. The optimum conditions were that the flame ionization detector was operated at a hydrogen flow rate of 100 mL/min corresponding to 90 kPa and air flow rate of 1. 9 L/min. The determinations in groups of saturated hydrocarbons, aromatics, resins and asphaltenes were performed by using n -heptane, toluene and V(chloroform): V(methanol) = 95: 5 as developing solvents. The developing distances were controlled at 10 cm, 5. 5 cm and 2. 5 cm respectively. In the present paper qualitative and quantitative analysis have been studied. And the method established was sufficiently applied to determine heavy oils from coal of coking plants of Shanxi.