8 weeks of “Chemical Process Development” are over

8 weeks full day teaching and workshops are over, from my POV very successful 🙂

This year we had very interesting design projects again. I will add the reports and slides later when available.

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2016 01 – Economic Recovery of Biobutanol and Its Conversion to Higher Value Products
Within the world-wide effort to use renewable sources as basis for high value chemical products, the extraction of products from fermentation broth plays a key role. In this project, novel routes to extract butanol from an ABE fermentation via ionic liquids are considered.
One participant of the design group will be Frederick Chikava of the research group of Prof. Annegret Stark in Durban, South Africa. After the design project in Germany there is the possibility to continue the work during an internship at the University of Kwazulu-Natal in Durban
(up to 3 months).
There is a long and intensive cooperation with the University of Kwazulu-Natal, Since 2006, Jürgen Rarey is a honorary professor in Durban.
Marcel Wernke , Henning Steinert, Frederik Chikava

2016 02 Separation and Recovery of a Complexing Agent in the Production of Lithium Hexafluorophosphate
Lithium hexafluorophosphate (LiPF6) is used as a component of the electrolyte for lithium ion batteries (used as a storage technology for renewable wind and solar energy). A novel process for the production of LiPF6 has been developed. This study focused on the extraction and treatment of the waste material from this production process: pyridine, ethanol, water and nitrogen.
One participant in the design group will be Nadine Moodley of the research group of Prof. Deresh Ramjugernath in Durban, South Africa. After the design project in Germany there is he possibility to continue the work during an internship at the  the University of Kwazulu-Natal in Durban (up to 3 months).
There is a long and intensive cooperation with the University of Kwazulu-Natal, Since 2006, Jürgen Rarey is a honorary professor in Durban.
Nadine Moodley

2016 03 – Production of High Purity L-Lactic Acid from Fermentation Broth: Process modeling and Plant Design
L-lactic acid is an important intermediate for the production of many valuable products. A process for the production of high purity L-lactic acid has been developed at Suranaree University of Technology (SUT) in Nakhon Ratchasima, Thailand. Detailed results are available from a recent project demonstration based on a 300 l batch fermentation. Process simulation is applied to the prediction of process dynamics and the optimization of operating conditions as a preliminary step to plant design.
One important purification step involves the esterification of L-lactic acid with ethanol, purification of the ester via distillation and ester hydrolysis. Within the design project, these steps should be simulated, whereby detailled experimental data are available.
One participant in the design group will be Mai Khanh Trang (Ken) of the research group of Prof. Apichat Boontawan at SUT. After the design project in Germany there is he possibility to continue the work during an internship at SUT in Thailand (up to 3 months).
There is a long history of cooperation between SUT and the University of Oldenburg. with intensive exchange of students and researchers (Prof. Rössner and Rarey in different projects and topics). Both universities signed a Memorandum of Understanding.
Kai Kniepkamp, Mai Khanh Trang, Tobias Mai

2016 04 – Bio-Derived Jet Fuel for Gas turbine engines: A Feasible Technology Using Palm Kernel Oil
While biodiesel is used worldwide as a renewable replacement of diesel fuel, no comparable replacement is available for jet engine fuel (kerosine) at sufficient volume. A process for the production of both biodiesel and biojetfuel has been developed at Suranaree University of Technology (SUT) in Nakhon Ratchasima, Thailand. In the previous course, one design group has already worked on parts of this process. Meanwhile all steps of the production have been experimentally optimized and verified within a larger batch experiment, so that further modelling using process simulation is required.
One participant in the design group will be Nhan Thi Thuc Truong (Kathy) of the research group of Prof. Apichat Boontawan at SUT. After the design project in Germany there is he possibility to continue the work during an internship at SUT in Thailand (up to 3 months).
There is a long history of cooperation between SUT and the University of Oldenburg. with intensive exchange of students and researchers (Prof. Rössner and Rarey in different projects and topics). Both universities signed a Memorandum of Understanding.
Nhan Thi Thuc Truong

2016 05 – Removal of Sour Gases (CO2 and H2S) from a Hydrocarbon Gas Stream via Aqueous MDEA Scrubbing
Removal of sour gases from process streams and pays an important role in the refinery, petro-chemical and chemical industry and for the reduction of CO2 emissions. One classic process is amine scrubbing. Within an informal cooperation with the German University of Technology (GUTECH) in Muscat, Oman, the design project is co-supervised by Prof. Dr. Najah Al Mhanna.
After the design project in Germany there is he possibility to continue the work during an internship at GUTECH in Oman (up to 3 months).
Alexander Damps, Markus Graminski

2016 06 – Simulation of Fuel Cells With Special View to Cell Degragation
At the associated EWE Research Center Next Energy at the University of Oldenburg, fuel cell performance is tested on a large scale as function of the different operating parameters with a special view on cell durability and degradation. Several approaches to the simulation of fuel cells in chemical process simulators are proposed in literature. Within this design project, a cell simulation should be developed that is able to describe the performance as function of operating parameters and model the observed degradation.
The project is co-supervised by Khrystyna Yezerska and Dr. Peter Wagner of Next Energy.
Florian Pieper, David Kieslich

2016 07 – Modelling of the Sulphur-Iodine Cycle for Hydrogen Production
Production of hydrogen plays a significant role for many technical and industrial applications (hydrogen economy, hydrogen fuel cells for transportation (Toyota)). Current technologies involve steam reforming (high CO2 emissions) and electrolysis (limited efficiencies). With a view to high temperature sources from concentrated solar energy and 4th generation nuclear reactors (e.g. pebble bed), thermochemical water-splitting processes attract a lot of attention. The sulphur-iodine process shows several advantages (all fluid, continuous, no effluents, individual steps all demonstrated, highest efficiency).
Within the design project, the process should be modelled, whereby a special focus will be on the correct modelling of the behavior of the chemical systems involved (vapor-liquid and liquid-liquid equilibria of electrolyte mixtures).
Luca Gerhards, Marco Weers

 

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