Meeting 2011

After the retirement of Prof. Dr. Jürgen Gmehling in April 2011, DDBST GmbH took over all rights and obligations of the University of Oldenburg. In order to mark this event, the ninth common meeting of the UNIFAC Consortium and the  DDBST User Meeting took place on Tuesday 13th September 2011 and Wednesday 14th September 2011 at TGO (Technologie- und Gründerzentrum Oldenburg) and at DDBST, respectively. 

The present status and the latest research activities on UNIFAC, mod. UNIFAC (Do) and PSRK were presented in short lectures. The company representatives had the opportunity to suggest possible future developments.
In the second part of the meeting the participants discussed proposals and practicable suggestions for the future developments of UNIFAC, mod. UNIFAC (Do), and PSRK at the research group.In the evening all participants were invited to join the laboratory tour, followed by the dinner.

Many thanks to all the participants for creating a nice atmosphere full of constructive discussions during the oral sessions!

Timetable 2011

Gallery of Pictures 2011

31 people from 30 companies have taken part in the meeting.

9th Joint meeting of “UNIFAC Consortium“ and “DDB User Meeting”
Tuesday, 13th and Wednesday, 14th September 2011

Seminar Room IV
TGO Oldenburg
Tuesday 13th September 2011
09:00 Reception
09:30 Welcome
  • Introduction
  • time schedule
  • overview of the work of consortium, consortium and DDBST
Prof. Dr. Jürgen Gmehling

DDB and DDB Software Package from 2010 to 2011 and Beyond

Prof. h. c. Dr. Jürgen Rarey 
10:30 The Status and Development of VTPR Group Contribution Equation of State Bastian Schmid
11:00 Coffee Break/Photo Shooting  
  "time available for lectures from participants"  
  • 11:20-11:50  "Ten ways to improve UNIFAC"  
Dr. Gerard Krooshof
DSM Chemical Technology BV
  • 12:00-12:40 "Expertise in Chemical Process Modeling"

Dr. Paul M. Mathias
Fluor Corporation

13:00 Lunch break  
14:00 Current state of the Revision and Extension of UNIFAC, Modified UNIFAC (Dortmund) and PSRK Group Contribution Equation of State Dr. Dana Constantinescu 
14:30 Consortium Session
  • Delivery 2011
  • Customization files
  • Future Plans
  • Discussion 
Dr. Dana Constantinescu  
Prof. Dr. Jürgen Gmehling
14:45 Coffee Break  
15:00 DDB-Session
In Depth Presentation of New Developments
Prof. h. c. Dr. Rarey 
Co-workers of DDBST
16:00 Simultaneous regression of gE model parameters
RecPar/1 for NRTL & UNIQUAC & Wilson
Wilfried Cordes
16:30 Laboratory Tour University/LTP Co-workers of LTP 
19:30 Dinner

"Rodizio" Restaurant ( Rodizio Lazador Brazil )
Pferdemarkt 16, 26121 Oldenburg Phone : +49(0) 441 8007433

  Wednesday 14th September 2011


09:00 Reception  
09:30 - 13:00 Hands-On Workshop
    Dortmund Data Bank (DDB)
    DDB Software Package (DDBSP) 
Small group or individual hands-on introduction to various features of DDB and DDBSP. Several topic are offered but this session is open to customer specific questions
    Process Simulation Parameter Verification Using DDB/DDBSP
    Physical Property Estimation and Critical Evaluation of Method Reliability
    Pure Component and Mixture Data Regression
    Data and Parameter Import/Export 
Co-workers of DDBST 
09:30 - 18:00 Private Appointments with co-workers of DDBST and University  
14:00 - 16:00 Hands-On Workshop (continued) Co-workers of DDBST