库仑法测定油品的烯烃含量

本文提出了由油品平均分子量和溴值计算油品的烯烃百分含量的方法。当油品中含有较多C_8以上烯烃作库命分析时,建议使用具有催化作用的电解液。文中考察了方法的准确度和精密度,并讨论了影响准确度的主要因素。该法具有简单快速、准确精密,样品用量少等优点。

Determination of Olefine in Petroleum Products by Coulometry

The average molecular weight and bromine number were used to calculate weightpercent of olefine in petroleum products. Olefine of higher carbon number (C>8) was determined with electrolyte having catalytic action by Coulometry. The accuracy and the precision of the method were presented, and the main factors influencing accuracy were discussed.The major advantages of the method are simple, fast, with very little sample etc..