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The New Jersey Institute of Technology's
Electronic Theses & Dissertations Project

Title: Calculations of isobaric phase enthalpy differences for binary systems from vapor-liquid equilibrium data
Author: Harvey, Steven Merrill
View Online: njit-etd1979-012
(v, 26, [4], A24 pages ~ 1.7 MB pdf)
Department: Department of Chemical Engineering and Chemistry
Degree: Master of Science
Program: Chemical Engineering
Document Type: Thesis
Advisory Committee: Chen, Hung T. (Committee chair)
Greenstein, Teddy (Committee member)
Lei, George Y. (Committee member)
Date: 1979-05
Keywords: Vapor-liquid equilibrium
Enthalpy
Availability: Unrestricted
Abstract:

Equations relating isobaric vapor-liquid equilibrium data to heats of vaporization are useful in testing the thermodynamic consistency of experimental VLE data and in the design of distillation equipment. Several researchers have proposed such equations based on the Gibbs-Duhem equation. At low pressures, simplified versions of these equations were successfully used to test the consistency of published VLE and enthalpy data. At high pressures, equilibrium phase enthalpy differences were calculated from rigorous equations using a modified form of the Redlich-Kwong equation to calculate fugacity coefficients. As expected, the relative error of using the simplified equations was found to increase with increasing pressure.


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