Modeling of the solubility of aromatic compounds in supercritical carbon dioxide-co solvent systems using SAFT equation of state

被引：44

作者：

Yang, HY ^{[1
]}

Zhong, CL ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, Key Lab Nanomat, Minist Educ, Dept Chem Engn, Beijing 100029, Peoples R China

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2005年 / 33卷 / 02期

基金：

中国国家自然科学基金;

关键词：

aromatic compound; solubility; supercritical fluid; cosolvent; SAFT;

D O I：

10.1016/j.supflu.2004.05.008

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The SAFT equation of state (EOS) combined with a one-parameter mixing rule was used to evaluate the capability of the SAFT approach for modeling the solubility of solid aromatic compounds in supercritical fluids (SCFs) with cosolvents. Binary interaction parameters were obtained by fitting the phase equilibrium data of the constituent binary systems. The SAFT EOS was used to predict the solubility of solids in carbon dioxide with cosolvents for five systems, and the overall average absolute relative deviation (AARD) was 20.43%. For the other 11 systems, the binary interaction parameters between the solids and the cosolvents were obtained by fitting the ternary solubility data, and the overall AARD was 16.45%. Comparison with the PRSV EOS showed that the SAFT EOS was superior in terms of both prediction and correlation. The present work demonstrates that the SAFT approach is useful for modeling the solubility of solids in SCFs with cosolvents with reasonable accuracy. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：99 / 106

页数：8

共 33 条

[1] Screening of cosolvents for a supercritical fluid: A fully predictive approach [J].

Abaroudi, K ;

Trabelsi, F ;

Recasens, F .

AICHE JOURNAL, 2002, 48 (03) :551-560

[2]

ALSTEN JCV, 1993, J CHEM ENG DATA, V38, P605

[3] Solubilities of solids in supercritical fluids .2. Polycyclic aromatic hydrocarbons (PAHs) plus CO2/cosolvent [J].

Anitescu, G ;

Tavlarides, LL .

JOURNAL OF SUPERCRITICAL FLUIDS, 1997, 11 (1-2) :37-51

[4] Representation of solid-supercritical fluid phase equilibria using cubic equations of state [J].

Ashour, I ;

Almehaideb, R ;

Fateen, SE ;

Aly, G .

FLUID PHASE EQUILIBRIA, 2000, 167 (01) :41-61

[5] AN EXCESS FUNCTION-EQUATION OF STATE MODEL FOR SOLUBILITY OF HYDROCARBON SOLIDS IN SUPERCRITICAL CARBON-DIOXIDE [J].

BARNA, LR ;

RAUZY, E ;

BERRO, C ;

BLANCHARD, JM .

FLUID PHASE EQUILIBRIA, 1994, 100 :191-208

[6] EQUILIBRIUM-PHASE PROPERTIES OF N-PENTANE-CARBON DIOXIDE SYSTEM [J].

BESSERER, GJ ;

ROBINSON, DB .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1973, 18 (04) :416-419

[7] SAFT - EQUATION-OF-STATE SOLUTION MODEL FOR ASSOCIATING FLUIDS [J].

CHAPMAN, WG ;

GUBBINS, KE ;

JACKSON, G ;

RADOSZ, M .

FLUID PHASE EQUILIBRIA, 1989, 52 :31-38

[8] NEW REFERENCE EQUATION OF STATE FOR ASSOCIATING LIQUIDS [J].

CHAPMAN, WG ;

GUBBINS, KE ;

JACKSON, G ;

RADOSZ, M .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1990, 29 (08) :1709-1721

[9] 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

[10]

Daubert T E., 1989, PHYS THERMODYNAMIC P, DOI DOI 10.5860/CHOICE.27-3319

← 1 2 3 4 →