2016•International Journal of Computational Science and EngineeringRequires access

Applications of the Peng-Robinson equation of state using Mathcad

Wei Zhang, Lixin Liu, Guili Liu

Abstract

The Peng-Robinson equation of state (PR EOS) can accurately describe both the liquid and vapour phase. We present several applications of this equation of state with the aid of Mathcad, including estimation of pure component properties, computation of vapour-liquid equilibrium (VLE) and isobaric diagram for a binary mixture. In addition, high-pressure chemical-equilibrium calculations are performed. An example of an adiabatic flash computation is also presented.

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Available abstract

Key concepts: Isobaric process, Equation of state, Computation, Thermodynamics, Adiabatic process, Binary number, Phase equilibrium, Component (thermodynamics)