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09-21-2019
You are here: Projects  › Current projects  › CO2USE+EPP  › 

CO2USE+EPP

– Increasing the economic viability of utilising CO2 from flue gas to produce biogas and bioplastic with photoautotrophic cyanobacteria

The production of biogas and bioplastics (polyhydroxybutyric acid – PHB) from CO2-rich flue gases is a very promising approach. However, for an economically viable process, it is necessary to optimize the weak points of the process. The most important aim is to increase PHB yields from 5-10% to 30-40% of cell biomass. This will be achieved on the one hand by genetic strain improvement and on the other hand by screening for PHB producing wild type strains and a possible mutagenesis of them. A further approach is mixotrophic growth on fatty acid byproducts from the biogas hydrolysis step. In addition, cheap CO2-sources such as direct flue gas from caloric power plants or biomass combustion plants as well as CO2-rich off-gases from bioethanol production are used for growing cyanobacteria in a pilot-scale photobioreactor.

The project contains the following tasks:
  • Innovative conversation processes, as anaerobic digestion from renewable resources with algae
  • Screening and characterisation of suitable algae strains
  • Production of efficient secondary energy carrier with fermentation
  • Optimisation of technologies and supply chains of biomethane from biogenic resources
  • Consideration of value-added chain of production, processing and utilisation
Duration: 1.03.2015 – 28.2.2018
Programme: Energieforschung - Kooperative F&E-Projekte "Experimentelle Entwicklung
Funded by:
FFG
Project Partners
Contact: Bernhard Drosg

In cooperation with

EVN AG

ANDRITZ Energy & Environment GmbH (AE&E)

TU Graz, Institute for Chemistry and Technology of Materials (ICTM)


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