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Unique biogas liquefaction and transport technology to unlock on-farm methanisation

Project description

Turning farm biogas into a transportable green solution

Biogas captures methane that would otherwise escape from decomposing agricultural waste, turning a potent greenhouse gas into a renewable energy source. Yet, small farms often lack access to the costly infrastructure required for grid injection. The EIC-funded SUBLIME Energie project addresses this barrier with a patented on-farm liquefaction technology that captures biomethane and bioCO2 together. Using a mobile cryogenic tank, biogas is liquefied directly on site and transported to a central hub for purification. This model lowers investment costs, removes the need for grid extensions and ensures both gases are fully reused. By empowering farmers to turn local biomass into a profitable and low-carbon fuel, SUBLIME Energie strengthens rural economies while advancing renewable energy.

Objective

SUBLIME Energie is pioneering a one-of-a-kind biogas liquefaction technology that efficiently transports the methane–carbon dioxide mixture. Biogas-derived methane and CO2 can be transported compressed or liquified separately, never together, except with SUBLIME Energie’s technology. Upgrading of liquefied biogas is then done at the hub allowing mutualisation of costly processes of gas separation and conditioning at a dedicated valorisation hub. In this model, farmers retain ownership of their biogas production, while SUBLIME Energie purchases it directly. The liquefaction process is performed on-farm using a mobile cryogenic tank (the subject of the first SUBLIME Energie patent at the inception of the company), which is then collected 1-2 times per week by hub operators. This approach enables the valorisation of biomass from farms that are far from the grid or are too small to make an injection model profitable. It eliminates the need to extend the gas grid, reduces CAPEX for farmers, and ensures that both methane and CO2 are valorised – thereby generating higher revenues for farmers and unlocking a previously untapped biomass resource.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-EIC-ACC - HORIZON EIC Accelerator

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Call for proposal

(opens in new window) HORIZON-EIC-2025-ACCELERATOR-02

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Coordinator

SUBLIME ENERGIE
Net EU contribution
€ 2 432 468,34
Address
60 Boulevard Saint-Michel Ecole Mines Paristech
75006 Paris
France
SME
Yes
Region
Ile-de-France Ile-de-France Paris
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Links
Total cost
No data