DETERMINATION AND CORRELATION OF TERNARYVLE DATA UNDER REDUCED PRESSURE FOR FERMENTATION ALCOHOL SYSTEM CONTAINING A SMALL AMOUNT OF IMPURITY

周金汉; 钱栋英; 蒋淇忠

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DETERMINATION AND CORRELATION OF TERNARYVLE DATA UNDER REDUCED PRESSURE FOR FERMENTATION ALCOHOL SYSTEM CONTAINING A SMALL AMOUNT OF IMPURITY

更新时间：2025-12-16

- DETERMINATION AND CORRELATION OF TERNARYVLE DATA UNDER REDUCED PRESSURE FOR FERMENTATION ALCOHOL SYSTEM CONTAINING A SMALL AMOUNT OF IMPURITY
- CIESC Journal Issue 6, (1994)
- 作者机构：
  
  浙江大学化工系!杭州310027,浙江大学化工系!杭州310027,浙江大学化工系,杭州,310027
- 作者简介：
- 基金信息：
- DOI：
  CLC： 642
- Online First：25 December 1994，
  
  Published：25 December 1994
- 稿件说明：
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周金汉, 钱栋英, 蒋淇忠. DETERMINATION AND CORRELATION OF TERNARYVLE DATA UNDER REDUCED PRESSURE FOR FERMENTATION ALCOHOL SYSTEM CONTAINING A SMALL AMOUNT OF IMPURITY[J]. CIESC Journal, 1994, (6).
DOI：

周金汉, 钱栋英, 蒋淇忠. DETERMINATION AND CORRELATION OF TERNARYVLE DATA UNDER REDUCED PRESSURE FOR FERMENTATION ALCOHOL SYSTEM CONTAINING A SMALL AMOUNT OF IMPURITY[J]. CIESC Journal, 1994, (6). DOI：

摘要

1 引言发酵酒精中以甲醇、正丙醇、异丁醇为代表的杂醇含量是酒精质量的重要标志

为有效地去除这些杂质

以得到高纯食用酒精.本文应用目前国内开发和设计的较新颖的节能型酒精蒸馏流程——差压精馏流程

测定了减压汽液平衡数据

并进行了基础研究. 有关甲醇-乙醇-水、正丙醇-乙醇-水、异丁醇-乙醇-水的三元汽液平衡关系文献早有报道’‘’

他们测定了常压下有大量水时各醇类对乙醇的相对挥发度.本文结合实际生产情况

测定减压下低浓度甲醇、正丙醇、异丁醇和全浓度范围的乙醇-水的3组三元汽液平衡数据

经热力学关联和计算

以期获得Wilson、NRTL、UNIQUAC交互作用参数值.2 实验2.1 试剂甲醇、乙醇、正丙醇、异丁醇均为分析纯试剂

水为二次蒸馏水.2.2 实验装置’“ 采用改进的汽液双循环型Rose平衡釜及自制的二级真空稳压系统

其精度为0.skPa

测温用1/10分度的实验室H级标准水银温度计

并考虑了露点校正”‘.2·3 组成分析用配有C-R3A色谱数据处理机的GC-gA岛津气相色谱仪分析汽、液相组成

色谱柱为装有天津试剂二厂生产的GDX-102担体的玻璃柱.分别以氢焰和热导为检测手段

用修正百分率法处理数据.3 数据处理和实验结果3.二热力学一致性校验为证实实验装置的可靠性

首先对常压下乙醇-水和53.32kPa

Abstract

Three groups of ternary VLE data for methanol- ethanol- water

1-propanol-ethanolwater and iso- butyl alcohol- ethanol- water containing a small amount of impurity in a fermentation alcohol system were determined under absolute pressure of 53. 32 kPa with an improved Rose equilibrium still apparatus. The data were correlated by the Wilson

NRTL

UNIQUAC activity coefficient model

and their energy parameters were determined for each system. The results were in good agreement with the experimental data.

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