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Properties, Hydrodynamics, and Mass Transfer

The EQ model requires reaction kinetic parameters and thermodynamic properties; the latter for the calculation of phase equilibrium and taking into account the effect of non-ideal component behavior in the calculation of reaction rates and chemical equilibrium constants.

NEQ models also require thermodynamic properties, not only for calculation of phase equilibrium but also for calculation of driving forces for mass transfer. In addition, physical properties such as surface tension, diffusion coefficients, viscosities, and so on for calculation of mass (and heat) transfer coefficients and interfacial areas are required.

Equipment design information also must be specified in the NEQ model so that mass-transfer coefficients, interfacial areas, liquid hold-ups, and pressure drops can be calculated.

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