Dr. Gerrit DANKER is involved in the development of the process modelling tool ProMoT and of the simulation tool Diana (see recent article in Chemie Ingenieur Technik at DOI: 10.1002/cite.201400003).
The key aspects of the ProMoT/Diana environment are flexible structured models, efficient modular numerical kernel, and the use of the scripting language Python as a powerful command line interface. The implementation is based on CAPE-OPEN interfaces to allow a modular software design and easy extensions of the system. Have a look at the paper in Computers and Chemical Engineering (DOI: 10.1016/S1570-7946(06)80086-6) for a discussion on the design and implementation rationale of the simulation environment.