- Communications Faculty of Sciences University Ankara Series B Chemistry and Chemical Engineering
- Volume:34 Issue:01.02
- LIMITS ON THE PREDICTION OF İSOBARİC TERNARY PHASE EQUILIBRIA BY NRTL AND LEMF EQUATIONS
LIMITS ON THE PREDICTION OF İSOBARİC TERNARY PHASE EQUILIBRIA BY NRTL AND LEMF EQUATIONS
Authors : Ülkü ÖZALP
Pages : 142-158
Doi:10.1501/Commub_0000000496
View : 41 | Download : 3
Publication Date : 1899-01-01
Article Type : Research Paper
Abstract :The isobaric separation of multicomponent mixtures by distillation reauire reliable vapour- liquid equilibrium data. Therefore, the separation is dependent on the predictive thermodyna- mic method used for estimation of vapour-Iiquid equilibria. The abilities of the NRTL and LEMF equations to predict isobaric binary and ternary vapour-liquid equilibria using only two or more lower heats of mixing data were compared. A ternary and three binary systems compri- sing the ternary were studied. Both equations gave reasonable results fer binary systems with intermolecular interaetions insert ignore into journalissuearticles values(HE max < 200 cal/g.mol);. For physical interaetions about 235 cal/g.mol the NRTL equation was found to be superior in the predietion of ternary VLE data with Standard deviation ranging from 12-17 % whereas the LEMF equation conld predict the ternary vapour phase with in the accuracy of 16-21 %Keywords : Therefore, A ternary, For physical
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