@inproceedings{01HW01MEBE1YEMNBA7D5394P5W,
  abstract     = {{Third-generation biorefineries using CO2 as their feedstock have garnered considerable interest for the carbon-neutral biological production of fuels and chemicals. To make this technology economically competitive, energy-efficient fixation of the gaseous carbon is crucial. In this respect, syngas fermentation with acetogenic bacteria appears to be a propitious route, albeit with a limited product spectrum of mainly small organic acids and alcohols. To enhance the product portfolio, we focus on a coupled fermentation approach with acetate, the natural product of the acetogens, serving as the intermediate.
More specifically, we have been investigating the techno-economic feasibility of this intricate process for the production of single-cell protein (SCP) from steel-mill off gas. Experimental data from lab and pilot-scale fermentations were used to build a model and conduct economic analyses. Significant cost reductions could be achieved through optimization of the gas-to-acetate fermentation process, for which a target concentration (45 g/L) and productivity (4 g/L/h) were identified, laying the foundation for further development of the acetate platform.
Another key aspect in this research field is the utilization of real industrial syngas as fermentation feedstock since the varying gas composition and presence of contaminants influence the acetate production. To assess the performance directly at the emission source, a mobile pilot plant for gas fermentation (the Bio Base Mobile Pilot Plant) was utilized to convert biomass-derived syngas into acetate.
Conclusively, our work sheds light on practical strategies to advance toward the sustainable and economically viable implementation of third-generation biorefineries.}},
  author       = {{Vlaeminck, Elodie and Quataert, Koen and Uitterhaegen, Evelien and De Winter, Karel and Delmulle, Tom and Kontovas, Stoilas-Stylianos and Misailidis, Nikiforos and G. Ferreira, Rafael and Petrides, Demetri and Soetaert, Wim}},
  booktitle    = {{The Carbon Recycling Network 4th Annual Conference, Abstracts}},
  language     = {{eng}},
  location     = {{Cheshire, UK}},
  pages        = {{45--45}},
  title        = {{Valorising syngas in a coupled fermentation via acetate : techno-economic analysis for SCP production and pilot-scale implementation}},
  url          = {{https://carbonrecycling.net/event/the-carbon-recycling-network-conference-4/}},
  year         = {{2024}},
}