Catalyxx has chosen Sines, Portugal, as the site for its first commercial-scale plant. The facility, called Catalyxx Ibérica, will convert bioethanol into butanol, hexanol and octanol.
These are low-carbon alternatives to petrochemical versions of the same molecules. Catalyxx says they’re chemically identical to their fossil-based counterparts. That means they can slot directly into existing industrial applications and supply chains.
The €120 million project builds on years of development. Catalyxx first validated its catalytic process at a demonstration facility in Sevilla, Spain. That plant ran under continuous operating conditions. It generated the operational data and expertise needed to scale up.
Sines offers deep-water port access and strong renewable energy infrastructure. The location supports Catalyxx’s push to strengthen supply security and cut emissions across the European chemical sector. The plant is expected to avoid roughly 105,000 tonnes of CO2 emissions annually.
The Portuguese government has granted the project Project of National Interest status. That recognition speeds up regulatory approval. Key environmental permits have already been secured, clearing the way for construction.
Construction is set to begin in the fourth quarter of 2026. Engineering support comes from Worley and Quadrante, two firms specializing in energy, chemicals and industrial infrastructure.
Funding combines private investment with public support. Catalyxx recently received €20 million from the Circular Bio-based Europe Joint Undertaking, reflecting the project’s role in Europe’s broader decarbonization goals.
Joaquín Alarcón, chief executive of Catalyxx, said the Sines facility marks the next step in replacing fossil-based chemicals with renewable, compatible alternatives. He credited Portuguese authorities and agencies for supporting the project.
The plant is expected to draw further investment into Portugal’s industrial sector, while positioning the country as a growing hub for sustainable chemical manufacturing.
