Improving the treatment of heavy hydrocarbons by the SRK EOS
1993; Elsevier BV; Volume: 84; Linguagem: Inglês
10.1016/0378-3812(93)85131-5
ISSN1879-0224
Autores Tópico(s)Chemical Thermodynamics and Molecular Structure
ResumoA new expression is proposed for the temperature dependence of the attractive parameter of the SRK equation of state. The new function is a two-parameter extension of the original form and can be applied to polar and non-polar compounds. By correlation of vapor pressures generated by the Lee-Kesler equation, expressions have been derived to predict the parameters of non-polar compounds from the acentric factor. They should allow a more reliable extrapolation of heavy hydrocarbon vapor pressures below their boiling point, with respect to the original SRK equations.
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