摘要
利用气相色谱法和毛细管柱将轻苯中的所有组分进行分离,轻苯中各组分的含量相对固定,且各组分的色谱流出顺序按组分沸点由低到高排列,与轻苯蒸馏实验过程中的组分流出顺序一致,可以从轻苯组分数据中找出与轻苯初馏点、终馏点有相关性的数据。根据色谱分析结果和蒸馏结果的线性关系推导出回归曲线方程,计算轻苯蒸馏数据,所测定的结果具有良好的准确度和精密度,试样分析时间不超过15 min,可代替GB/T 2282-2000《焦化轻油类产品馏程测定》用于测定轻苯初馏点和终馏点,为焦炉煤气轻苯加工行业提供了快捷准确的分析数据。
It is introduced how to determine distillation process of light benzene with gas chromatography： with this method and capillary column to separate all components in light benzene, the contents of all components are relatively fixed, and the color spectrum flowing out order of various component is arranged accord- ing to their boiling points from low to high, being consistent with that in light benzene distillation test procedure, the data having relativity with initial and end boiling points of light benzene can be found out from light benzene component data. According to the linear relation between the color spectrum analysis and the distillation result, the regression curve equation can be derived and the light benzene distillation data calculated out. The determined data has good accuracy and precision, the sample analysis time is not longer than 15 minutes. This method can be used to replace GB/T2282 -2000《Coking light oil products - -Determination of distillation range》to determine the initial and end boiling points of light benzene, offer fast and accurate analysis data for coke gas light benzene working industry.
出处
《河北冶金》
2016年第2期73-75,共3页
Hebei Metallurgy
关键词
气相色谱法
轻苯
初馏点
终馏点
回归曲线
馏程
gas chromatography
light benzene
initial boiling point
end boiling point
regression curve
distillation procedure
