摘要
本文以卡尔——费休——库仑滴定电分析法测定C_4馏分中水分含量。选用经改装的J烷取样瓶采样系统采集样品,以苯及浓硫酸在气定温度下溶解和吸收水定量水分为标准样品对方法的准确度进行了测定。测定的准确度相对误差为+15％,精密度标准偏差为8.7。
In this thesis the water content in C4 distillation is determined with Carl-Fisher-Coulomb potentiometric method.The sampling system of modified butane-sampling bottle is used to collect the samples,and quantitative water dissolved and absorbed in given temperature by benzene and concentrated sulfuric acid is used as standard samples to determine the accuracy of the method.The relative error of accuracy is+15% and the standard deviation is 8.7.
关键词
水分
馏分油
碳四馏分
测定
Carl-Fisher method Coulombtitration C_4 distillation Water
