IKFT 03-21 Bachelor- or Master Thesis Recording an Advanced Distillation Curve for Different Renewable Liquid Fuels
Institute of Catalysis Research und Technology (IKFT)
The bioliq® concept developed at KIT is a three step conversion process for the production of 2nd generation drop-in biofuels from biomass waste, such as wheat straw. First, biomass is converted in decentralized fast pyrolysis units to yield energy dense biosyncrude, a mixture of bio-oil and char. This slurry is the feed for large scale pressurized entrained flow gasification operated at 8 MPa to yield producer gas free of tars. Finally, this gas is converted via DME synthesis to yield designer fuels.
The given task is set in the first step, fast pyrolysis. This initial conversion is performed in a twin-screw mixing reactor at 500 °C. The comminuted biomass feed is thermochemically converted to hot pyrolysis vapours, gas, and char fines within seconds. Solid char particles are separated by cyclones prior to a two-step condensation of the vapours yielding an organic and an aqueous condensate.
The scope of this work is to increase the understanding of the chemically complex fast pyrolysis oil organic condensate thermodynamics. We will use ADCs (advanced distillation curves) to collect thermodynamic data (temperatures, volume percent distilled, vapor phase composition). Specific tasks are:
1. Validation of the ADC with decane/tetradecane mixtures at atmospheric pressure and at 5-10 kPa(abs) vacuum
2. Distillation of organic condensate with the ADC
3. Distillation of plastic pyrolysis oil with the ADC
4. Characterisation of vapor phase samples collected during ADC (e.g. via GC-MS/FID)
5. Simulation of distillation curves in Aspen Plus
6. Installation of a liquid composition data channel to increase data collection
as soon as possible
Chemical engineering, process engineering, technical chemistry, willingness to work and thesis in English
3-6 months according to university calendar
Dr.-Ing. Anke Krutof
Please apply online using the button below for this vacancy number IKFT 03-21.
Ausschreibungsnummer: IKFT 03-21
Recognized severely disabled persons will be preferred if they are equally qualified.
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