CPA

The CPA model is available, by CERE, in various formats and for different types of applications as mentioned below:

• SPECS: VLE and LLE calculations for various associating mixtures can be carried out.

• ThermoSystem: The CPA module can be used in any CAPE-OPEN compliant process simulators (e.g. Aspen HYSYS®, SimSci PRO/II) using. It also provides the option to use the CPA module in Aspen Plus® as a user model.

• Electrolyte CPA (eCPA) : MATLAB® tool for the calculation of activity coefficients and solubility plots for aqueous salt solutions including mixed salts

• Asphaltenes: MATLAB tool for the calculation of asphaltene phase envelope (PT plot including upper and lower onset boundaries) with gas injection effect.

• Gas Hydrate: MATLAB tool for the calculation of hydrate formation using CPA/qCPA with vdW-Platteeuw hydrate model.

• MAPS: Multicomponent adsorption calculations can be carried out using the MAPS software, combined with the MPTA theory by Alexander Shapiro and Erling Halfdan Stenby.

• INT2EOS: MATLAB and Python interfaces to the FORTRAN dynamic-link library (DLL) of the CPA and PC-SAFT equations of state.

• CPA Dew Point Calculator: Dew point calculations, three-phase equilibrium temperatures, hydrate and frost formation calculations for natural gas containing water and/or production chemicals can be performed using the dew point calculator. The GERG based model calculator is also developed for the comparison of dew point.

Software Availability

SPECS and general CAPE-OPEN (ThermoSystem) description and instruction videos (for simulation of flow-sheet for natural gas processing) can be downloaded from the members section for the CERE member companies.

The Dew point calculator can be also downloaded from the member section for the CERE member companies.

All other CPA based modules/tools mentioned above are available for the members of CHIGP joint industry project.