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Capture and electroCONVERsion of CO2 to eThylene via an all-in-one device using Ionic LiquidS

Objective

The transition to a sustainable circular economy requires not only decarbonizing energy production but also rethinking carbon sourcing and material inputs for fuels, chemicals, and advanced materials. Conventional recycling faces limitations, while emerging industrial approaches offer new ways to transform waste into valuable resources.
CO2 conversion into chemicals, fuels, polymers, and minerals remains limited. A 2023 report estimates a production capacity of 1.3Mt CO2/year, compared to 50-60Mt CO2 captured globally. Ethylene (C2H4) is a high-value target, mainly for PET packaging, agricultural, pharmaceutical, and construction applications.
Current industrial ethylene production relies on petroleum or natural gas via steam cracking, following a linear carbon economy. Zero-carbon CO2-based routes are under development, typically involving four steps: capture, desorption, electro-conversion to CO, and conversion to C2+ molecules. These are limited by energy intensity, catalyst efficiency, feedstock variability, scalability and economic factors.
CONVERT-IL aims to simplify this route by eliminating two steps and using ionic liquids as a single chemical vector for both capture and electro-conversion, creating an all-in-one device. Ionic liquids provide electrochemical stability, ionic conductivity, tunable CO2 solubility, and low vapor pressure, enabling efficient capture and recycling. Iolitec will design the IL composition, fine-tuned with SINTEF’s machine learning, while CEA will develop a compatible catalyst for selective CO2-to-C2H₄ conversion. eChemicles will develop and scale an IL-compatible electrolyser, and EKIUM will perform techno-economic and life-cycle analyses. The project will demonstrate feasibility with industrial CO2 and assess scalability, economic viability, and environmental performance.

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Programme(s)

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Topic(s)

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Funding Scheme

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HORIZON-EIC - HORIZON EIC Grants

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Call for proposal

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(opens in new window) HORIZON-EIC-2025-PATHFINDERCHALLENGES-01

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Coordinator

COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 1 154 136,10
Address
RUE LEBLANC 25
75015 Paris
France

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Region
Ile-de-France Ile-de-France Paris
Activity type
Research Organisations
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Total cost

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Participants (5)