Extension of the group-contribution lattice-fluid equation of state

被引：9
|
作者：
Li, Jianwei [1 ]
Lei, Zhigang [1 ]
Chen, Biaohua [1 ]
Li, Chengyue [1 ]
机构：
[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
来源：
FLUID PHASE EQUILIBRIA | 2007年 / 260卷 / 01期
关键词：
group-contribution lattice-fluid equation of state (GCLF EOS); group parameters; UNIFAC model; extractive distillation; crystallinity;
D O I：
10.1016/j.fluid.2006.09.003
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This work focuses on the extension of the numbers of group parameters and application of the group-contribution lattice-fluid equation of state (GCLF EOS). The new group parameters of the GCLF EOS were evaluated by means of the volume translated Peng-Robinson equation of state (VTPR EOS) and the UNIFAC model. Values for 20 main groups and 33 subgroups are added into the current parameter matrix. The procedure used in this work can also be used to evaluate group parameters for the groups not present in the current matrix. Some examples are given to show the reliability of the new group parameters. Two new applications of the GCLF EOS are present: the effect of polymeric additive to solvents in extractive distillation and prediction of the crystallinity of polymers in the presence of gas. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：135 / 145
页数：11
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