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High‐temperature mutual solubilities of hydrocarbons and water. Part II: Ethylbenzene, ethylcyclohexane, and n ‐octane
Author(s) -
Heidman J. L.,
Tsonopoulos C.,
Brady C. J.,
Wilson G. M.
Publication year - 1985
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690310304
Subject(s) - ethylbenzene , solubility , chemistry , cyclohexane , octane , thermodynamics , vapor pressure , volatility (finance) , benzene , hydrocarbon , critical point (mathematics) , phase equilibrium , vapor–liquid equilibrium , hexane , phase (matter) , organic chemistry , chromatography , mathematical analysis , physics , mathematics , financial economics , economics
In Part I (Tsonopoulos and Wilson, 1983), the mutual solubilities of three C 6 hydrocarbons (benzene, cyclohexane, n ‐hexane) and water were experimentally investigated and, together with critically selected literature data, were correlated up to the three‐phase critical end point. The present paper extends this analysis to the mutual solubilities of three C 8 hydrocarbons (ethylbenzene, ethylcyclohexane, n ‐octane) and water, which have been measured at the three‐phase equilibrium pressure up to the critical temperatures (568, 561 and 539 K, respectively). A thermodynamic analysis of these new measurements and of available literature data has been performed up to the three‐phase critical end point. Information is also provided on vapor‐phase equilibrium compositions. The solubility of hydrocarbons in water has been used to calculate Henry's constants, while the solubility and volatility of water in hydrocarbons has been successfully correlated with several modifications of the Redlich‐Kwong equation of state.