Abstract: This paper focuses on the evaluation of the linear VLE model for systems containing C5 hydrocarbons and acetonitrile by use of an experimental column with 22 sieve-plates (d = 32mm) operated at total reflux and total solvent recirculation. As reported previously[6], the linear VLE model, which have been used for C5 hydrocarbons DMF systems, is as follows: (1) (2) According to the good agreement of the calculated results using this linear model with expermental results, the conclusion can be made that these linear equilibrium relations are suitable for systems containing C5 hydrocarbons and acetonitrile for technical purposes. The average deviation in concentration between experimental and calculated values is 0.45% (mole) and the temperature deviation is 3.6℃ and 0.7℃ (after correction). The model parameters M and B are also reported,

摘要： 曾报道过下列最简单的线性汽液平衡模型可以适用于C_5-DMF体系. 本文按文献数据回归了一套适合于C_5-乙腈(包括含水乙腈)体系的模型参数M、B值.同时,在小型筛板塔上进行了以乙腈为溶剂全循环全回流萃取精馏碳五馏份的试验,并用上述关系式和M、B值进行了试验塔沿塔身浓度、温度分布的逐板计算.结果证明所用计算模型及参数值是适用的,可供设计乙腈萃取精馏碳五馏份工业塔时选用.浓度计算值与实测值平均偏差为0.45%(mol),温度平均偏差为3.6℃,校正后为0.7℃.提出了一个利用试验塔的实测数据和计算模型,例算部分组分模型参数的方法,用此方法求取了反式-2-戊烯的参数.