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Received September 25, 2008
Accepted December 26, 2008
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Correlation of measured excess enthalpies of binary systems composed of n-alkane+1-alkanol
Department of Chemical and Biological Engineering, Korea University, 5 Ga, Anam-dong, Sungbuk-gu, Seoul 136-701, Korea
jwkang@korea.ac.kr
Korean Journal of Chemical Engineering, January 2009, 26(1), 240-245(6), 10.1007/s11814-009-0040-y
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Abstract
The excess enthalpies of the binary mixture composed of n-alkane (n-octane, n-nonane, n-decane) and 1-alkanol (ethanol, 1-propanol, 1-butanol) have been measured by using a flow-type isothermal microcalorimeter (model CSC 4400, Calorimetry Science Corp., USA) at 313.15 K under atmospheric pressure. The measured excess enthalpy data were correlated by the Redlich-Kister equation and the nonrandom lattice fluid with hydrogen bonding (NLFHB)_x000D_
equation of state. Hydrogen bonding type specific parameters were introduced in the NLF-HB equation of state framework, and the effects of those parameters were investigated for excess enthalpy calculations. With two adjustable temperature-dependent interaction parameters, the NLF-HB equation represents the excess enthalpies for nine binary systems qualitatively.
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References
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