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MixProps is a two phase vapor-liquid equilibrium, thermodynamic, and transport property calculator for technical professionals. Both pure and multicomponent systems are supported with a comprehensive collection of physical property methods. MixProps is for use on MS Windows (tm) operating systems.

MixProps is extremely easy to use and includes the following features:

An intuitive user interface.
equilibrium Equations of state supported: RK, SRK, API-SRK, PR, PR-78.
redlick-kwong EOS binary interaction parameters use and specification is fully supported.
Pure component data drawn from the extensive PhysProps data base.
peng-robinson A full range of thermophysical and transport properties for each phase is generated.
equilibrium flash T-P Flash (isothermal) routine employed is extremely accurate and stable.
bubble point Also computes bubble and dew point pressures/temperatures.
dew point Quality print-outs of generated data available.
flash calculation Saving cases and calculations for future reference.
compressibility Cut/Copying/Pasting is supported to allow importing/exporting data to other applications.

Thermodynamic models include the following equations of state (EOS): Redlich-Kwong, Soave-Redlich-Kwong, API-SRK, Peng-Robinson, and the 1978 modification of the PR equation of state. Binary interaction coefficient input is also supported to allow the user to fine-tune the data the EOS model produces and allow the EOS to be used for increasingly more non-ideal systems.

MixProps is the perfect software tool for professionals in the chemical, natural gas, and petroleum industries. You can now easily and reliably calculate thermodynamic and transport properties and use the results to size equipment and instrumentation, check column/heat exchanger performance, and perform difficult vapor-liquid equilibrium problems. In addition, dew and bubble points can be computed in accordance to API 14.1! Natural gas professionals will appreciate the ease with which standard gas analysis problems can be solved.

The basic routine for vapor-liquid equilibrium calculations is the temperature-pressure (T-P) flash routine. All of the well known process simulation applications available today use a T-P flash routine modified to provide results which are a compromise between speed and accuracy. Within these process simulation applications, computational speed is emphasized and accuracy is compromised. Speed is emphasized simply because of the large number of T-P flash calculations needed to produce a reasonable, overall result for the process simulation model...even for small, simple simulation models.

This is not the case with MixProps. The T-P flash routine used in MixProps was designed for one purpose...unparalleled accuracy. A rigorous T-P flash is performed and the routine used generates a precise solution regardless of machine time involved. These accurately computed phase splits and component compositions, coupled with the PhysProps database of pure component properties, generates an optimum set of physical property data limited only by the pure component data and thermodynamic model used. With MixProps, inaccurate and compromised property values commonly found in process simulators is a thing of the past.

The output generated by MixProps consists of a comprehensive set of thermodynamic, thermophysical and transport properties...all instantly available and in a wide variety of engineering units:

* Equilibrium vapor and liquid compositions
* Equilibrium K-Values
* Flash phase fractions
* Mixture molecular weights
* Mixture critical volume/temperature/pressure
* Phase compressibility factors
* Mixture densities
* Heats of Vaporization
* Mixture heat capacities
* Phase enthalpy/entropy
* Mixture viscosity/thermal conductivity
* Mixture heat capacity ratio
* Mixture Joule-Thompson coefficient
* Sonic velocity through mixtu