A new predictive UNIQUAC for modeling of wax formation in hydrocarbon fluids

被引：44

作者：

Coutinho, Joao A. P. ^{[1
]}

Mirante, Fatima

Pauly, Jerome

机构：

[1] Univ Aveiro, CICECO, Dept Quim, P-3810193 Aveiro, Portugal

[2] Univ Pau & Pays Adour, Lab Fluides Complexes, Ctr Univ Rech Sci, F-64013 Pau, France

来源：

FLUID PHASE EQUILIBRIA | 2006年 / 247卷 / 1-2期

关键词：

wax; UNIQUAC; solid-liquid equilibria; high pressure; diesel; crude;

D O I：

10.1016/j.fluid.2006.06.002

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A new UNIQUAC based predictive local composition model is here compared against predictive Wilson and predictive modified UNIQUAC on their abilities to predict wax formation. For that purpose a very large database of phase equilibrium data of both synthetic and real hydrocarbon fluids, at both low and high pressures, will be used. It is shown that the new UNIQUAC model does not suffer from the limitations, or is much less affected by them, than the models previously proposed. The global description of the phase equilibrium for all the systems studied is also significantly superior to the two other models. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：8 / 17

页数：10

共 42 条

[1] STATISTICAL THERMODYNAMICS OF LIQUID-MIXTURES - NEW EXPRESSION FOR EXCESS GIBBS ENERGY OF PARTLY OR COMPLETELY MISCIBLE SYSTEMS [J].

ABRAMS, DS ;

PRAUSNITZ, JM .

AICHE JOURNAL, 1975, 21 (01) :116-128

[2] PREDICTION OF VAPOR-LIQUID-EQUILIBRIUM WITH THE LCVM MODEL - A LINEAR COMBINATION OF THE VIDAL AND MICHELSEN MIXING RULES COUPLED WITH THE ORIGINAL UNIFAC AND THE T-MPR EQUATION OF STATE [J].

BOUKOUVALAS, C ;

SPILIOTIS, N ;

COUTSIKOS, P ;

TZOUVARAS, N ;

TASSIOS, D .

FLUID PHASE EQUILIBRIA, 1994, 92 :75-106

[3] Prediction of vapor-liquid equilibria with the LCVM model: Systems containing light gases with medium and high molecular weight compounds [J].

Boukouvalas, CJ ;

Magoulas, KG ;

Stamataki, SK ;

Tassios, DP .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1997, 36 (12) :5454-5460

[4] AN ANALYSIS OF SOLID PHASE BEHAVIOR OF NORMAL PARAFFINS [J].

BROADHURST, MG .

JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS SECTION A-PHYSICS AND CHEMISTRY, 1962, 66 (03) :241-+

[5] Mixtures of numerous different n-alkanes:: 2.: Studies by X-ray diffraction and differential thermal analyses with increasing temperature [J].

Chevallier, V ;

Petitjean, D ;

Bouroukba, M ;

Dirand, M .

POLYMER, 1999, 40 (08) :2129-2137

[6] Mixtures of numerous different n-alkanes:: 1. Structural studies by X-ray diffraction at room temperature -: Correlation between the crystallographic long c parameter and the average composition of multi-alkane phases [J].

Chevallier, V ;

Provost, E ;

Bourdet, JB ;

Bouroukba, M ;

Petitjean, D ;

Dirand, M .

POLYMER, 1999, 40 (08) :2121-2128

[7] Paraffin crystallization in synthetic mixtures:: Predictive local composition models revisited [J].

Coutinho, JAP ;

Gonçalves, C ;

Marrucho, IM ;

Pauly, J ;

Daridon, JL .

FLUID PHASE EQUILIBRIA, 2005, 233 (01) :28-33

[8] Evidence for the aging of wax deposits in crude oils by Ostwald Ripening [J].

Coutinho, JAP ;

da Silva, JAL ;

Ferreira, A ;

Soares, MR ;

Daridon, JL .

PETROLEUM SCIENCE AND TECHNOLOGY, 2003, 21 (3-4) :381-391

[9] Predictive local composition models:: NRTL and UNIQUAC and their application to model solid-liquid equilibrium of n-alkanes [J].

Coutinho, JAP .

FLUID PHASE EQUILIBRIA, 1999, 158 :447-457

[10] Experimental measurements and thermodynamic modeling of paraffinic wax formation in undercooled solutions [J].

Coutinho, JAP ;

RuffierMeray, V .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1997, 36 (11) :4977-4983

← 1 2 3 4 5 →