Modeling of solid-liquid equilibria in naphthalene, normal-alkane and polyethylene solutions

被引:50
作者
Pan, C
Radosz, M [1 ]
机构
[1] Louisiana State Univ, Dept Chem, Baton Rouge, LA 70803 USA
[2] Louisiana State Univ, Macromol Study Grp, Baton Rouge, LA 70803 USA
关键词
equation of state; SAFT; solid-fluid equilibria; method of calculation; alkanes; polyethylene;
D O I
10.1016/S0378-3812(98)00454-3
中图分类号
O414.1 [热力学];
学科分类号
摘要
A solid-liquid equilibrium (SLE) model is developed on the basis of an equation of state referred to as copolymer SAFT. This SLE model is demonstrated for hydrocarbon solutions containing totally and partially crystallizable solutes. Initially regressed and tested on the solubility data for naphthalene, normal-alkane, and polyethylene, this model is used in a sensitivity study to understand the effects of crystallizability, melting temperature, molecular weight, and pressure on solid-liquid and liquid-liquid transitions of polyethylene in subcritical and supercritical propane. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
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页码:57 / 73
页数:17
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