Liquid-solid equilibria in a decane plus multi-paraffins system

被引：89

作者：

Pauly, J ^{[1
]}

Dauphin, C ^{[1
]}

Daridon, JL ^{[1
]}

机构：

[1] Univ Pau & Pays Adour, Ctr Rech Sci, Lab Haute Press, F-64000 Pau, France

来源：

FLUID PHASE EQUILIBRIA | 1998年 / 149卷 / 1-2期

关键词：

experimental method; data; solid-fluid equilibria; heavy hydrocarbons;

D O I：

10.1016/S0378-3812(98)00366-5

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Measurements, performed at atmospheric pressure on mixtures made up of decane plus various distributions of heavy normal paraffins from octadecane to triacontane, were carried out to provide information on wax content (amount and composition) as function of temperature. At various temperatures below the wax appearance temperature, liquid and solid phases in partially frozen mixtures were separated by isothermal filtration and analyzed by gas chromatography. Amount and composition of both phases were then deduced from mass balance after correction of the entrapped liquid in the solid residue. Furthermore, the L-S equilibrium data obtained are compared with the values predicted by means of several models. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：191 / 207

页数：17

共 11 条

[1]

[Anonymous], 1946, ACTA PHYSICOCHIM URS

[2] EVALUATION OF ACTIVITY-COEFFICIENT MODELS IN PREDICTION OF ALKANE SOLID-LIQUID EQUILIBRIA [J].

COUTINHO, JAP ;

ANDERSEN, SI ;

STENBY, EH .

FLUID PHASE EQUILIBRIA, 1995, 103 (01) :23-39

[3] A local composition model for paraffinic solid solutions [J].

Coutinho, JAP ;

Knudsen, K ;

Andersen, SI ;

Stenby, EH .

CHEMICAL ENGINEERING SCIENCE, 1996, 51 (12) :3273-3282

[4] Phase boundary measurement on a methane plus decane plus multiparaffins system [J].

Daridon, JL ;

Xans, P ;

Montel, F .

FLUID PHASE EQUILIBRIA, 1996, 117 (1-2) :241-248

[5]

Flory P J., PRINCIPLES POLYM CHE

[6] A THERMODYNAMIC MODEL FOR PREDICTING WAX FORMATION IN CRUDE OILS [J].

HANSEN, JH ;

FREDENSLUND, A ;

PEDERSEN, KS ;

RONNINGSEN, HP .

AICHE JOURNAL, 1988, 34 (12) :1937-1942

[7]

PEDERSEN KS, 1991, ENERG FUEL, V5, P924

[8] A New Two-Constant Equation of State [J].

PENG, D ;

ROBINSON, DB .

INDUSTRIAL & ENGINEERING CHEMISTRY FUNDAMENTALS, 1976, 15 (01) :59-64

[9]

Prausnitz J.M., 1969, Molecular thermodynamics of fluid-phase equilibria

[10] HIGH-PRESSURE HIGH-TEMPERATURE RESERVOIR FLUIDS - INVESTIGATION OF SYNTHETIC CONDENSATE GASES CONTAINING A SOLID HYDROCARBON [J].

UNGERER, P ;

FAISSAT, B ;

LEIBOVICI, C ;

ZHOU, H ;

BEHAR, E ;

MORACCHINI, G ;

COURCY, JP .

FLUID PHASE EQUILIBRIA, 1995, 111 (02) :287-311

← 1 2 →