Biogas plant, Connecticut, USA

Biogas plant in Connecticut, USA, will be built in cooperation with local manufacturers and general contractors. The raw material will be chicken and cattle manure from nearby farms. The final product – biomethane – will be injected into the local natural gas network. In addition, high-quality organic fertilizer will be produced, as well as CO₂ capture and preparation for further use. The station is designed with future development and expansion options, ensuring synergy with the surrounding agricultural and energy infrastructure.

The station project will consist of more than 15 different engineering structures and buildings. They are planned to include:

• Reception tanks with water connection and mechanical stirring, ensuring homogeneous preparation of raw material for the fermentation process. Tanks equipped with odor and emission treatment systems.
• Fermentation tanks equipped with mechanical stirrers and a heating system to ensure high biogas production efficiency. The tanks will be equipped with a double membrane system for gas capture and process safety, as well as modern process control sensors.
• Biological pre-treatment station, designed to reduce sulfur and ammonia in biogas before further processing stages.
• Biogas processing building, which integrates biomethane production technology and raw material processing line. Biogas will be purified to biomethane and injected into the local natural gas network. The processing line will ensure the production of high-quality organic fertilizer.
• Post-fermentation tanks, designed for storage of digestate and further use as fertilizer. The tanks are equipped with gas capture and process efficiency improvement systems.
• A CO₂ capture and preparation station that will provide ~13,000 tons of CO₂ capture and preparation for use or commercialization.

The plant will process a significant amount of agricultural by-products per year and produce:

• 100 GWh of biomethane;
• 13,000 tons of CO₂.