NDLI: Equation of state for the systems containing aqueous salt: Prediction of high pressure vapor-liquid equilibrium

Content Provider	Springer Nature Link
Author	Baseri, Hadi Lotfollahi, Mohammad Nader Asl, Ali Haghighi
Copyright Year	2009
Abstract	An equation of state (EOS), which is based upon contributions to the Helmholtz energy, is presented for systems containing aqueous electrolyte solutions at high pressure. The Peng-Robinson equation of state is used to provide the Helmholtz energy of a reference system. The electrolyte terms consist three terms containing a modified Debye-Hückel term for long-range electrostatic interactions, the Born energy contribution for electrostatic works and a Margules term for short-range electrostatic interactions between ions and solvents. The binary and ternary interaction parameters of the equation of state are obtained by experimental osmotic coefficient data. Systems that were studied here are (water+ NaCl+SC-CO$_{2}$), (water+NH$_{4}$Cl+SC-CO$_{2}$), (water+Na$_{2}$SO$_{4}$+SC-CO$_{2}$) and (water+methanol+NaCl+SC-CO$_{2}$). It is found that the proposed equation of state is able to accurately represent the experimental data over a wide range of pressure, temperature and salt concentration.
Starting Page	168
Ending Page	174
Page Count	7
File Format	PDF
ISSN	02561115
Journal	Korean Journal of Chemical Engineering
Volume Number	26
Issue Number	1
e-ISSN	19757220
Language	English
Publisher	Springer US
Publisher Date	2009-01-28
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Equation of State Electrolyte Solution Vapor-liquid Equilibrium Biotechnology Materials Science Catalysis Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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