| SRK方程结合超额Gibbs自由能规则预测汽液平衡 |
| |
| 引用本文： | 吴选军,张光旭,刘相鹏.SRK方程结合超额Gibbs自由能规则预测汽液平衡[J].化学工程,2010,38(1). |
| |
| 作者姓名： | 吴选军 张光旭 刘相鹏 |
| |
| 作者单位： | 武汉理工大学,化学工程学院,湖北,武汉,430070 |
| |
| 摘 要： | SRK方程结合范德华混合规则应用于极性体系会产生较大误差,而结合超额Gibbs自由能(GE)型混合规则能得较好的结果。Wong-Sandler(WS型)混合规则是基于无穷大压力的GE型混合规则,文中对提出一种基于常压的改进型WS(MWS型)混合规则,利用SRK方程分别结合WS型和MWS型混合规则对多个二元极性体系汽液平衡进行预测。比较结果表明,采用SRK方程结合MWS型混合规则预测汽液平衡结果一般优于WS型混合规则。
|
| 关 键 词： | 改进WS型混合规则 UNIFAC SRK状态方程 预测 汽液平衡 |
SRK equation of state combined with new extra Gibbs mixing rule for predicting vapor-liquid equilibrium |
| |
| WU Xuan-jun,ZHANG Guang-xu,LIU Xiang-peng.SRK equation of state combined with new extra Gibbs mixing rule for predicting vapor-liquid equilibrium[J].Chemical Engineering,2010,38(1). |
| |
| Authors: | WU Xuan-jun ZHANG Guang-xu LIU Xiang-peng |
| |
| Affiliation: | College of Chemical Engineering;Wuhan University of Technology;Wuhan 430070;Hubei Province;China |
| |
| Abstract: | The predicting results of polar systems have a greater error when applying SRK equation combined with van der Waals mixing rules,but those are better when applying SRK equation combined with extra Gibbs(GE) mixing rules.Wong-Sandler(WS) is one of GE mixing rules based on the infinite pressure.One of modified WS(MWS) mixing rules based on atmospheric pressure was proposed.SRK equation was applied for the prediction of vapor-liquid equilibria of various polar binary systems combined with WS and MWS mixing rul... |
| |
| Keywords: | modified WS mixing rule UNIFAC SRK equation of state prediction vapor-liquid equilibrium |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
