化学工程2017，Vol.45Issue(9)：35-38,4.DOI:10.3969/j.issn.1005-9954.2017.09.007
常压下叔丁醇-水-乙二醇体系汽液平衡测定与关联
Measurement and correlation of vapor-liquid equilibria for TBA-water-ethylene glycol ternary system
任海鸥 1周金波 1李长明 1崔现宝2
作者信息
- 1. 中国石油天然气股份有限公司石油化工研究院兰州化工研究中心,甘肃兰州730060
- 2. 天津大学化工学院化学工程联合国家重点实验室,天津300072
- 折叠
摘要
Abstract
The vapor-liquid equilibrium data of TBA-ethylene glycol binary system was measured by improved Othmer vapor-liquid equilibrium still,and the thermodynamic consistencies of the phase equilibrium data were examined.The results show that the experimental data conforms to the examination of thermodynamic consistencies.The vapor-liquid equilibrium data was correlated by NRTL equation,and then the parameters obtained were used to calculate the vapor-phase compositions and the temperature.The calculation results agree well with the experimental data.The vapor-liquid equilibrium data of TBA-water-ethylene glycol ternary system was measured,the relative volatility between TBA and water increases sharply with ethylene glycol,which indicate that ethylene glycol is suitable solvent for separation of TBA-water system by extractive distillation.关键词
叔丁醇/水/乙二醇/汽液平衡/NRTL模型Key words
tert butyl alcohol/water/ethylene glycol/vapor-liquid equilibrium/NRTL model分类
化学化工引用本文复制引用
任海鸥,周金波,李长明,崔现宝..常压下叔丁醇-水-乙二醇体系汽液平衡测定与关联[J].化学工程,2017,45(9):35-38,4.
