Perturbed-Chain-Statistical-Associating-Fluid-Theory (PC-SAFT) is an equation of state developed by Gross and Sadowski (2001).
In CERE software, it is used in the simplified form developed a few years later by von Solms, Michelsen and Kontogeorgis (2003).The PC-SAFT model is available, by CERE, in various formats as mentioned below:
- SPECS: VLE and LLE calculations for both polymer and non-polymer systems can be carried out using PC-SAFT. A special PC-SAFT database should be selected under SPECS.
- ThermoSystem: The PC-SAFT/CPA module can be used in any CAPE-OPEN compliant process simulators (e.g. Aspen HYSYS®, SimSci PRO/II) using ThermoSystem. It also provides the option to use the CPA module in Aspen Plus® as a user model.
- Asphaltenes: MATLAB tool, based on the CPA/PC-SAFT module, for the calculation of asphaltene phase envelope (PT plot including upper and lower onset boundaries) with gas injection effect.
- INT2EOS: MATLAB and Python interfaces to the FORTRAN dynamic-link library (DLL) of the CPA and PC-SAFT equations of state.
Software Availability
SPECS and PC-SAFT/CAPE-OPEN in ThermoSystem, stand-alone DLL and executables as well as instruction videos can be downloaded from the members section for the CERE member companies.
CPA models and Asphaltene tool are available for the members of CHIGP joint industry project.