Articles & Issues
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
3성분계 기액평형에 관한 연구 (Benzene(1)-n-Heptane(2)-Toluene(3)계와 n-Hexane(1)-Ethanol(2)-Benzene(3)계의 기액평형)
A Study on Vapor-Liquid Equilibria for Ternary Systems(Vapor-Liquid Equilibria of Benzene(1)-n-Heptane(2)-Toluene(3) and n-Hexane(1)-Ethanol(2)-Benzene(3) System)
HWAHAK KONGHAK, August 1986, 24(4), 311-319(9), NONE
Download PDF
Abstract
상압하에서 benzene（1）-n-heptane(2)-toluene(3)계와 n-hexane(1)-ethanol(2)-benzene(3)계의 기액평형 조성을 Scatchard 평형증류기의 기액분리부분을 개량한 증류기로 측정하였다.
이들 3성분계의 기액평형값을 Wilson식, NRTL식, UNIQUAC식에 의하여 추정하여 비교하였고 각 식의 파라메타는 3성분계의 2성분쌍이 이루는 문헌의 기액평형값으로부터 구하였다. 이들 식에 의한 3성분계 기액평형의 기상 조성의 추정값은 평균편차가 1.56∼3.50 % 범위내에서 NRTL식, Wilson식, UNIQUAC식 순으로 잘 맞았다.
이들 3성분계의 기액평형값을 Wilson식, NRTL식, UNIQUAC식에 의하여 추정하여 비교하였고 각 식의 파라메타는 3성분계의 2성분쌍이 이루는 문헌의 기액평형값으로부터 구하였다. 이들 식에 의한 3성분계 기액평형의 기상 조성의 추정값은 평균편차가 1.56∼3.50 % 범위내에서 NRTL식, Wilson식, UNIQUAC식 순으로 잘 맞았다.
Vapor-liquid equilibrium compositions at the normal atmospheric pressure were measured for the benzene（1）-n-heptane(2)-toluene(3) system and also n-hexane(1)-ethanol(2)-benzene(3) system with the improved Scatchard equilibrium still.
These ternary vapor-liquid equilibrium compositions were compared with predicted values by the Wilson, NRTL and UNIQUAC equations. And parameters in those equations were obtained by using the binary vapor-liquid equilibrium compositions in the literature for binary pairs consisting of ternary systems.
The predicted vapor compositions of ternary vapor-liquid equilibria by those equations with only binary parameters were in good agreement with accuracy in mean deviation range of 1.56-3.50 %（NRTL eq.,2.50% ; Wilson eq., 2.52% ; UNIQUAC eq.,2.57%）.
These ternary vapor-liquid equilibrium compositions were compared with predicted values by the Wilson, NRTL and UNIQUAC equations. And parameters in those equations were obtained by using the binary vapor-liquid equilibrium compositions in the literature for binary pairs consisting of ternary systems.
The predicted vapor compositions of ternary vapor-liquid equilibria by those equations with only binary parameters were in good agreement with accuracy in mean deviation range of 1.56-3.50 %（NRTL eq.,2.50% ; Wilson eq., 2.52% ; UNIQUAC eq.,2.57%）.
