Themes in the spotlight in 2024 

Discover the four themes that will be explored at Expobiogaz in 2024:  

• Pyro-gasification 
  Pyro-gasification is one of the innovative sectors that will contribute to the decarbonisation of the energy mix by 2050. It expands the range of possibilities for exploiting biomass and non-recyclable waste in new ways, such as the production of renewable, low-carbon gas, emphasising local ecosystems and strengthening regional energy independence. Pyro-gasification supplements the production of renewable gas by the anaerobic digestion sector without competing for the sources of biomass used, and makes a notable contribution to reducing the quantities of waste sent to landfill by recovering it for energy production

• Digestate  
  Digestate, the valuable by-product of anaerobic digestion that is rich in nutrients and organic matter for fertilising crops. How can increasing volumes be exploited? What does regulation have to say? Maximising the return of digestate to the soil: what are the best practices for storage and spreading? 

• BPA/CPB 
  Two new mechanisms that will soon be contributing to the establishment of biomethane injection projects. Unlike feed-in tariffs, these are not state-supported tariffs. We will demonstrate how their long-term commitments make it possible to create profitable projects. 

• CO2 
  The biogenic CO2 discharged by biomethane purification is a by-product that can be reused in a mature market. Around a dozen units are now active since the first was launched in 2020. What can we do to bring bioCO2 to market more quickly? What obstacles, including health-related and procedural challenges, need to be overcome before this currently underestimated fraction of biogas can be exploited? 

• Hydrothermal gasification  
  Hydrothermal gasification is the most recent and probably the most disruptive of the new, innovative gas production processes aiming to contribute to energy sovereignty and the decarbonization of numerous activities in France by 2027. It enables the recovery of liquid, wet and dry (mixed) biomass and fossil wastes, alone or in mixtures, to transform them into renewable, low-carbon gas, while preserving valuable components (minerals, nitrogen, water) for reuse, in line with a circular economy approach. The technology offers a complementary solution to other gas production technologies, and a very complete and interesting alternative for better valorizing the quantities of waste that today end up in incineration or landfill.