Michelin, IFPEN, and Axens celebrated the inauguration of France's first industrial-scale demonstrator for producing bio-based butadiene at Michelin's site in Bassens, near Bordeaux.
This milestone was achieved as part of the BioButterfly project, a collaborative effort between the three partners and supported by ADEME (French Agency for Environment and Energy Management).
The project's objective is to develop and commercialize butadiene derived from ethanol obtained from biomass (plants), as a sustainable alternative to petrochemical-based butadiene. BioButterfly represents a significant advancement in establishing a bio-based synthetic elastomer industry.
Butadiene, a C4 diolefin, serves as a crucial chemical intermediate in the production of various polymers widely used in applications such as tire manufacturing (40% of butadiene usage). The remaining 60% finds applications in varnish, resin, ABS plastic, nylon for automobiles, textiles, and construction. The introduction of bio-based butadiene offers potential markets across these applications.
Launched in July 2023, the industrial-scale demonstrator is designed to validate each stage of the manufacturing process for bio-based butadiene, showcasing technological and economic viability. With a production capacity ranging from 20 to 30 metric tons per year, this scale allows for rapid industrial development.
This demonstration phase marks a significant step towards the global commercialization of the new process, enabling the production of innovative synthetic rubbers without relying on fossil-based resources. Axens' commercialization of this technology is pivotal for ensuring substantial volumes of renewable butadiene.
The inauguration of the demonstrator underscores the commitment of the three partners to foster the development of a French bio-based synthetic elastomer sector, promoting sustainability in the industry.
Michelin collaborates with its partners to build virtuous ecosystems and enhance synergy among various value chain participants, aiming to operate, finance, and boost the production of renewable butadiene. Over time, these ecosystems are expected to lead to the construction of multiple plants globally, meeting the increasing demand for sustainable and bio-based finished goods.
The BioButterfly project has attracted a total investment exceeding €80 million, including €14.7 million in support from ADEME under the Investments for the Future Program. Additional support has come from the Nouvelle Aquitaine region and the Bordeaux Urban Community. The project has already generated around twenty jobs at Michelin's Bassens site.
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