Meet the BIOMETHAVERSE Demo Sites, where innovations in the biomethane universe happen!

In-Situ and Ex-Situ Electro-methanogenesis (EMG) in France

Feedstock- 30,000 t/y agro-industrial residues

Main numbers

  • 1,815,000 m³/y of biomethane

  • 250 Nm³/h injected into the NG gride

  • 6,000 m³ digestion volume (HRT > 50 days)

  • Valorisation of digestate-land spreading

  • (6,000 ha, 31 farms)

Technology – Biomethane from bioelectrochemical methanation

  • 1c-AD-BES: biogas with a biomethane content up to 70-80%

  • 2c-AD-BES:biogas upgrading to biomethane (>95%) and P2G applications (bio-electrocatalytically), converting the biogas CO2 share

Input – O2 +electricity + H2 O

Output – + 91% of biogas, 98% biomethane, 0.8 m3/day

TRL advance: 4→ 6-7

Ex-Situ Biological Methanation (EBM) in Italy

Feedstock – Urban WWTP with 2 parallel AD lines for sewage sludge valorization to biogas

Main numbers

  • 90 m3/h or 600,000 m3/y bioCH4 injected into grid​

Technology – Feedstock pre-treatment via ozonolysis, Pilot-scale Ex-situ biological upgrading (EBM), Pilot-scale microalgae operation, Pilot-scale co-digestion operation

Input – CO2 +H2

Output – 160 L/h biomethane, increase of 78% of biomethane production

TRL Advance: 3-4→ 7

Ex-Situ Thermochemical/catalytic Methanation (ETM) in Greece

Feedstock – 80,000 t/y of livestock waste

Main numbers

  • 8,400 MWh electricity + 75,000 t digestate

  • 290 Nm3/h capacity – 1 MW CHP

  • 2 fermenters of 4,500 m³ each

  • Land-spreading valorizations (5,000 acres)

Technology – Conversion of CO2 in the biogas to biomethane, through its reaction with renewable H2 in a catalytic reactor

Input – 6 Nm3 /h biogas​ (CO2 + H2)

Output – 15,000 Nm3 of biomethane, 95% of methane content, energy efficiency of the process at 61%

TRL advance: 5 → 7

Ex-Situ Syngas Biological Methanation (ESB) in Sweden

Feedstock – Wood chips, logging residues, municipal yard trimming

Main numbers

  • 6 MW gasification plant owned

  • Syngas H2 (55%) CO (30%) CO2 (14%) CH4 (1%)

Technology – Demo plant containerized and fully mobile. Biological methanation of syngas (CO and H2) and nutrient solution (i.e., digestate or from H2O after S/L of WWT sludge) with or w/o external electrolyser that provide additional H2 from renewable electricity.

Input – 10 kW syngas + 10kW H2

Output – 16 kW biomethane

TRL advance: 4 → 6-7

In-Situ Biological Methanation (IBM) in Ukraine

Feedstock – 300 t/d of chicken manure and agricultural residues

Main numbers

  • 85 GW electricity + 75,000 t of digestate

  • 12 MW capacity

  • 12 reactors (9 main fermenters and 3 post-digestors)

  • 90,000 m3 each  

Technology – Hydrogen-assisted in situ biological biogas upgrading to bioCH4

Input – 100 Nm3 biogas

Output – 18 Nm3​ biomethane, 85% biomethane

TRL advance: 4 → 6-7