Rapid and Accurate Determination of Crystallization Point of Petroleum Benzene
Benzene crystals point as the purity of identifying benzene and an effective means of quality control,which is important for the high quality high output of petroleum benzene products to achieve significance to the company.The purity of petroleum benzene in the distillation outlet and storage tank of our unit's extraction device is greater than 99.0％,and its purity is greatly affected by the content of non aromatic hydrocarbons(NA),which in turn affects the determination of the crystallization point.It was argued that there was a certain linear relationship between the purity of petroleum benzene and the crystallization point,so the change in crystallization point can be quickly determined by the purity of petroleum benzene,while reducing the labor intensity and occupational hazard factors of analysts.The relationship between NA with different contents and their crystallization points,as well as between NA with the same content but different types and crystallization points,were explored.And on the premise of not affecting the accuracy of the measured data results,ethanol thermal conductivity was used instead of traditional air thermal conductivity.By optimizing the experimental conditions,the experimental reaction time was shortened,greatly reducing the analysis cost and improving the efficiency of analysis and testing.
petroleum benzenecrystallization pointnon aromatic hydrocarbonspurityreaction time
万方数据
维普
