0．053MPa下酒精中乙醇和主要杂质之间的汽液平衡研究

Studies on vapor-liquid phase equilibrium between alcohol and its main impurities at pressure of 0.053MPa

本文利用自行改进的Ｒｏｓｅ釜研究了在０．０５３ＭＰａ绝对压力下酒精中乙醇和主要杂质（甲醇、正丙醇和异丁醇）之间的三个二元汽液平衡关系，为差压精馏技术在酒精精馏中的应用提供基础数据．获得的全部数据与ＵＮＩＱＵＡＣ模型符合得很好．

This paper studies the three binary-system vapor-liquid phase equilibrium between alcohol and its respective main impurities (methanol. propyl alcohol and isobutyl alcohol )at an absolute pressure of 0. 053MPa in Rose still modified by us. It provides basic data for the application of difference pressure distillation in alcohol distillation, .All the data obtained are well correlated with those of UNIQUAC method.