Aspen Physical Property System - Physical Property Models

References
M. Benedict, G. B. Webb, and L. C. Rubin, J. Chem. Phys., Vol. 8, (1940), p.
334.
R. F. Curl and K.S. Pitzer, Ind. Eng. Chem., Vol. 50, (1958), p. 265.
B. I. Lee and M.G. Kesler, AIChE J., Vol. 21, (1975), p. 510.
Lee-Kesler-Plöcker
The Lee-Kesler-Plöcker equation-of-state is the basis for the LK-PLOCK
property method. This equation-of-state applies to hydrocarbon systems that
include the common light gases, such as H2S and CO2. It can be used in gasprocessing,
refinery, and petrochemical applications.
The general form of the equation is:
Where:
The fo and fR parameters are functions of the BWR form. The fo parameter is
for a simple fluid, and fR is for reference fluid n-octane.
The mixing rules are:
Vcm
2 Thermodynamic Property Models 31
=
=
�� =
Zm
Where:
Vcij
Tcij
Zci
=
=
=
=
kij = kji