摘要：A EOS-G(E) model has been developed for the prediction of solid-liquid-vapor equilibira in highly asymmetric paraffinic systems. In this work, the fluid phases (vapor and liquid) are described by the EOS-G(E) model in which the volume translated PR EOS is adopted coupled with the LCVM mixing rule and a nonlinear calculation of the segment fractions for gamma(C) in UNIFAC is introduced to consider the high asymmetry in tested systems. For solid phase, the non-ideality is represented by the IRSW model for the complete physical significance of g(E) in solid phase (Yang et al. Fluid Phase Equilibria 427 (2016) 504-512) and by the Poynting factor for the pressure effects. To validate the established EOS-G(E) model, several binary, ternary and quaternary systems as well as multiple systems are investigated. The calculation results show great concord with the experimental WATs (wax appearance temperature) and bubble points. (C) 2018 Elsevier B.V. All rights reserved.

关键字：Thermodynamic model Solid liquid-vapor equilibrium Wax precipitation EOS-G(E) UNIFAC

ISSN号：0378-3812

卷、期、页：卷: 480 页: 1-10

发表日期：2019-01-25

影响因子：2.473000

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,ESI（基本科学指标数据库）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：FLUID PHASE EQUILIBRIA

通讯作者：杨居衡,石国赟,王丹,丁麟,柳扬,宋尚飞

第一作者：王玮,宫敬,史博会

论文类型：期刊论文

论文概要：杨居衡,王玮,石国赟,王丹,宫敬,史博会,丁麟,柳扬,宋尚飞，Predicting solid-liquid-vapor equilibria in highly asymmetric paraffinic systems with EOS-G(E) model，FLUID PHASE EQUILIBRIA，2019，卷: 480 页: 1-10

论文题目：Predicting solid-liquid-vapor equilibria in highly asymmetric paraffinic systems with EOS-G(E) model