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Computer Simulations of Vapor-Liquid-Liquid Equilibria Involving Hydrocarbons and Water

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Computer Simulations of Vapor­Liquid­Liquid Equilibria Involving 

Hydrocarbons and Water

Suren Moodley1, Peter Ahlström2, Kim Bolton2, and D. Ramjugernath3. (1) Chemical 

Engineering, University of KwaZulu Natal, King George V Avenue, Durban, South Africa, (2)  School of Engineering, University College of Borås, ­, SE­501 90 Borås, Sweden, (3) Chemical  Engineering, University of KwaZulu­Natal, King George V Avenue, Durban, South Africa In this work three­phase equilibria between hydrocarbons and water and their mixed vapor phase are  studied unsing Gibbs Ensemble Monte Carlo simulations. In earlier investigations phase equilibria  between a single liquid and a single vapour phase of the pure components like water [1], pure  hydrocarbons and hydrocarbon mixtures [2] have been the subject of our studies. Optimal parameter  combinations for the binary hydrocarbon­water systems were determined earlier [3] and those  parameter sets were used in subsequent studies of the two­phase system of liquid water/liquid  hydrocarbons [4]. In the present study, the latter system is extended to include a vapor phase in  order to more realistically model these systems.  [1] E.Johansson, K.Bolton & P.Ahlström, J.Chem.Phys., 123 (2005), 024504.  [2] T.McKnight, P.Ahlström, M.Starzak, T.Vlugt, D.Ramjugernath, K.Bolton, Fluid Phase  Equilibria, 232 (2005)  136  [3] E.Johansson, P.Ahlström, Lecture Notes in Computational Science, 4699 (2007), 59­65.  [4] E.Johansson, K.Bolton, D.N.Theodorou, and P.Ahlström, J.Chem.Phys.J.Chem.Phys., 126  (2007), 224902.

See more of #190 ­ Poster Session: Thermodynamics and Transport      Properties (01A06)   

See more of Engineering Sciences and Fundamentals

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