Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Extended UNIQUAC model for correlation and prediction of vapour-liquid-solid equilibria in aqueous salt systems containing non-electrolytes. Part A. Methanol-water-salt systems
Autore:
Iliuta, MC; Thomsen, K; Rasmussen, P;
Indirizzi:
Tech Univ Denmark, Inst Kemitekn IVC SEP, Dept Chem Engn, DK-2800 Lyngby, Denmark Tech Univ Denmark Lyngby Denmark DK-2800 m Engn, DK-2800 Lyngby, Denmark
Titolo Testata:
CHEMICAL ENGINEERING SCIENCE
fascicolo: 14, volume: 55, anno: 2000,
pagine: 2673 - 2686
SICI:
0009-2509(200007)55:14<2673:EUMFCA>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHASE-EQUILIBRIA; G(E) MODEL; SOLUBILITY; THERMODYNAMICS; REPRESENTATION; MIXTURES; SOLVENTS; EQUATION; SINGLE;
Keywords:
extended UNIQUAC; vapour-liquid-solid equilibria; electrolytes; nonelectrolytes;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
70
Recensione:
Indirizzi per estratti:
Indirizzo: Rasmussen, P Tech Univ Denmark, Inst Kemitekn IVC SEP, Dept Chem Engn, Bldg 229, DK-2800 Lyngby, Denmark Tech Univ Denmark Bldg 229 Lyngby Denmark DK-2800 y, Denmark
Citazione:
M.C. Iliuta et al., "Extended UNIQUAC model for correlation and prediction of vapour-liquid-solid equilibria in aqueous salt systems containing non-electrolytes. Part A. Methanol-water-salt systems", CHEM ENG SC, 55(14), 2000, pp. 2673-2686

Abstract

The Extended UNIQUAC model has previously been used to describe the excessGibbs energy for aqueous electrolyte mixtures. It is an electrolyte model formed by combining the original UNIQUAC model, the Debye-Huckel law and the Soave-Redlich-Kwong equation of state. In this work the model is extendedto aqueous salt systems containing non-electrolytes in order to demonstrate its ability in representing solid-liquid-vapour (SLV) equilibrium and thermal property data for these strongly non-ideal systems. The model requiresonly pure component and binary temperature-dependent interaction parameters. The calculations are based on an extensive database consisting of salt solubility data in pure and mixed solvents, VLE data for solvent mixtures and mixed solvent-electrolyte systems and thermal properties for mixed solvent solutions. Application of the model to the methanol-water system in the presence of several ions (Na+, K+, NH4+, Cl-, NO3-, SO42-, CO2- and HCO3-) shows that the Extended UNIQUAC model is able to give an accurate description of VLE and SLE in ternary add quaternary mixtures, using the name set of binary interaction parameters. The capability of the model to predict accurately the phase behaviour of methanol-water-three salts systems is illustrated. (C) 2000 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/04/20 alle ore 11:28:05