Physical properties

Virtually any physprops package

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gPROMS models can call Aspen Properties®

gPROMS is used across virtually all process industry sectors, from cement manufacture to pharmaceuticals to food. There is no universal physical properties package that can supply all requirements.

For this reason PSE's approach is to provide a simple built-in properties package augmented by a wide range of optional rigorous physical property packages that cater for different needs.

Built-in ideal properties

gPROMS is supplied with a simple ideal physical properties package, gPROMS Ideal Properties, built in as a standard feature.

gPROMS Multiflash properties

gSAFT: Find out more ...

Optionally, gPROMS can be supplied with Multiflash physical properties.

Multiflash is a highly rigorous properties package that supports all commonly-used thermodynamic and transport properties, including a wide range of equation of state and activity coefficient thermodynamic models (see right).

Multiflash is specifically designed for equation-orientated modelling, providing tight convergence of internal iterations and analytical partial derivatives with respect to temperature, pressure and composition.

A MS Excel plug-in provides parameter estimation capabilities for thermodynamic constants.

Multflash can be supplied with the DIPPR database.

Other properties options

Multiflash

comprehensive
high-accuracy
industry-standard
designed for advanced modelling environments

OLI®

OLI properties are available for aqueous electrolytic systems.

CAPE-OPEN physical properties

gPROMS provides a CAPE-OPEN physical properties socket into which any CAPE-OPEN compliant physical properties package can be plugged – for example Aspen Properties®, SIMULIS®, COM-Thermo® and many others.

Proprietary physical property packages

gPROMS provides a general open interface for interfacing of external property and thermodynamic tools.

Virtually any physical properties package can be interfaced to gPROMS with a few days' effort.

gSAFT: the SAFT equation of state

The SAFT (Statistical Associating Fluids Theory) equation of state is a significant new development in physical properties of recent years.

gPROMS provides several routes to access SAFT calculations.