Bian Baigui, Wang Yanru and Shi Jun(Nanjing Institute of Chemical Technology, Nanjing 210009). A NEW MIXING RULE CONTAINING EXCESS GIBBS ENERGY MODEL FOR CUBIC EQUATIONS OF STATE[J]. CIESC Journal, 1993, (3).
DOI:
Bian Baigui, Wang Yanru and Shi Jun(Nanjing Institute of Chemical Technology, Nanjing 210009). A NEW MIXING RULE CONTAINING EXCESS GIBBS ENERGY MODEL FOR CUBIC EQUATIONS OF STATE[J]. CIESC Journal, 1993, (3).DOI:
A NEW MIXING RULE CONTAINING EXCESS GIBBS ENERGY MODEL FOR CUBIC EQUATIONS OF STATE
A modified Huron-Vidal mixing rule is presented by introducing excess Gibbs energy(gE) models into mixing rules for cubic equations of state at a reference pressure. The Soave-Redlich-Kwong equation of state and Wilson model is used as an example by taking atmospheric pressure as reference pressure. VLE data are predicted for 50 sets of 16 typical systems. Examples are also given for high pressure VLE prediction. The results show that the mixing rule enables direct incorporation of parameters of low pressure gE model for predicting low and high pressure VLE with cubic equations of state.