Crossover SAFT equation of state for pure supercritical fluids

被引：32

作者：

Hu, ZQ ^{[1
]}

Yang, JC ^{[1
]}

Li, YG ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Chem Engn, Beijing 100084, Peoples R China

来源：

FLUID PHASE EQUILIBRIA | 2003年 / 205卷 / 01期

关键词：

crossover theory; equation of state; statistical associating fluid theory; supercritical fluids; thermodynamic properties; vapor-liquid equilibrium;

D O I：

10.1016/S0378-3812(02)00091-2

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A crossover statistical associating fluid theory (SAFT) equation of state (EOS) is used to fit the parameters of eight common pure supercritical fluids (water, ammonia, carbon dioxide, R134a, ethane, propane, ethene and propene) and calculate their thermodynamic properties. Over a wide range including the critical region, the EOS reproduces the saturated pressure data with an average absolute deviation (AAD) of about 1% and the saturated densities with an AAD of about 2%. In the one-phase region, the EOS represents the experimental values of pressure with an AAD of about 1-3%. The results are satisfactory. (C) 2002 Published by Elsevier Science B.V.

引用

页码：1 / 15

页数：15

共 16 条

[1] CROSSOVER APPROACH TO GLOBAL CRITICAL PHENOMENA IN FLUIDS [J].

ANISIMOV, MA ;

KISELEV, SB ;

SENGERS, JV ;

TANG, S .

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 1992, 188 (04) :487-525

[2] APPLICATIONS OF AUGMENTED VANDERWAALS THEORY OF FLUIDS .1. PURE FLUIDS [J].

CHEN, SS ;

KREGLEWSKI, A .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1977, 81 (10) :1048-1052

[3] CROSSOVER FROM SINGULAR CRITICAL TO REGULAR CLASSICAL THERMODYNAMIC BEHAVIOR OF FLUIDS [J].

CHEN, ZY ;

ALBRIGHT, PC ;

SENGERS, JV .

PHYSICAL REVIEW A, 1990, 41 (06) :3161-3177

[4] EQUATION OF STATE FOR SMALL, LARGE, POLYDISPERSE, AND ASSOCIATING MOLECULES [J].

HUANG, SH ;

RADOSZ, M .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1990, 29 (11) :2284-2294

[5] Crossover SAFT equation of state: Application for normal alkanes [J].

Kiselev, SB ;

Ely, JF .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1999, 38 (12) :4993-5004

[6] A crossover equation of state for associating fluids [J].

Kiselev, SB ;

Ely, JF ;

Adidharma, H ;

Radosz, M .

FLUID PHASE EQUILIBRIA, 2001, 183 :53-64

[7] Crossover SAFT equation of state and thermodynamic properties of propan-1-ol [J].

Kiselev, SB ;

Ely, JF ;

Abdulagatov, IM ;

Magee, JW .

INTERNATIONAL JOURNAL OF THERMOPHYSICS, 2000, 21 (06) :1373-1405

[8] Simplified crossover SAFT equation of state for pure fluids and fluid mixtures [J].

Kiselev, SB ;

Fly, JF .

FLUID PHASE EQUILIBRIA, 2000, 174 (1-2) :93-113

[9] Cubic crossover equation of state [J].

Kiselev, SB .

FLUID PHASE EQUILIBRIA, 1998, 147 (1-2) :7-23

[10]

LEMMON EW, 2001, NIST CHEM WEBBOOK NI

← 1 2 →