Firefly teams with Altaca for its CatLiq – hydrothermal liquefaction (HTL) tech

June 10, 2026 |

In the UK, Firefly has signed a partnership deal with Turkish engineering firm Altaca, providing key technology for the firm’s planned UK facility. The Bristol-based developer—which uses treated human sewage (biosolids) as a feedstock—now possesses all the necessary components to scale production and lead the effort to decarbonise the aviation industry.

Under the terms of the agreement, Altaca will supply Firefly with its CatLiq – hydrothermal liquefaction (HTL) technology. This specialised technology is used to convert sewage sludge into crude oil, representing a crucial “upstream” step in the bio-fuel production process. This solution serves as the final link in the supply chain, enabling Firefly to scale its innovative “wet-to-jet” platform and provide sustainable, affordable fuel for an industry facing significant cost and regulatory challenges.

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Category: Fuels

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