A density correction for the Peng—Robinson equation of state
1989; Elsevier BV; Volume: 47; Issue: 1 Linguagem: Inglês
10.1016/0378-3812(89)80051-2
ISSN1879-0224
AutoresPaul M. Mathias, T. Naheiri, Edwin M. Oh,
Tópico(s)Chemical Thermodynamics and Molecular Structure
ResumoA simple empirical additive term is proposed which corrects the liquid molar volumes predicted by the Peng—Robinson equation of state. The correction term requires only a single parameter for each component and is applicable to mixtures containing polar as well as non-polar substances. The corrected model predicts vapor and liquid densities to within 2%–4% of experimental data. A similar correction is applicable to other equations of state.
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