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A Modified van der Waals Mixture Theory for Associating Fluids: Application to Ternary Aqueous Mixtures
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نویسنده
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Aghamiri Seyed Foad ,Modarres Modarress ,Hamid ,Nickmand Nickmand ,Zahra ,Taheri Hammed
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منبع
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iranian journal of chemistry and chemical engineering - 2012 - دوره : 31 - شماره : 4 - صفحه:69 -76
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چکیده
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In this study a simple and general chemical association theory is introduced. the concept of infinite equilibrium model is re-examined and true mole fractions of associated species are calculated. the theory is applied to derive the distribution function of associated species. as a severe test the application of presented theory to the van der waals mixture modelis introduced in order to perform vapor-liquid equilibrium (vle) calculations of aqueous ternary mixtures. the calculations are shown to be consistently improving the prediction over the non-associating case. also, well known empirical models of nrtl and uniquac are applied on the studied systems and their results are compared with proposed model.
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کلیدواژه
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Association ,van der Waals ,van Laar ,NRTL ,UNIQUAC ,VLE
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آدرس
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university of isfahan, Chemical Engineering, Department, Faculty of Engineering, University of Isfahan, Isfahan, I R IRAN, ایران, amirkabir university of technology, Chemical Engineering Department, Amirkabir University of Technology, Tehran, I R IRAN, ایران, university of isfahan, Chemical Engineering Department, Faculty of Engineering, University of Isfahan, Isfahan, I R IRAN, ایران, university of isfahan, Chemical Engineering Department, Faculty of Engineering, University of Isfahan, Isfahan, I R IRAN, ایران
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Authors
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