
Catagen partners with Ryanair and Shell to accelerate sustainable aviation fuel production
Belfast green technology firm Catagen has unveiled ClimaHtech Green Flight, a subsidiary focused on producing sustainable aviation fuel (SAF) through patented modular reactor technology. Unlike conventional large-scale facilities, this decentralised approach allows production near airports or renewable energy sources, shortening lead times and overcoming infrastructure bottlenecks.
The company has secured offtake agreements with Ryanair and Shell Aviation, reflecting strong demand for scalable, cost-effective SAF to support UK and EU net-zero commitments. Initial output is planned at one million litres per site annually, with expansion potential to ten million litres.
By situating production closer to demand, Catagen reduces reliance on imports, strengthens energy security, and accelerates aviation’s transition to low-carbon operations. The model offers airlines and energy providers a flexible, modular solution that meets sustainability mandates without requiring extensive new infrastructure.
As pressure mounts on the aviation sector to decarbonise, Catagen’s integration of modular reactor technology with renewable energy positions the company at the forefront of next-generation SAF solutions. The approach delivers both environmental and operational benefits, demonstrating how decentralised, technology-driven production can support energy independence and enable the sector to meet stringent emissions targets.
Dive into the full article to explore how Catagen’s decentralised model could reshape the future of sustainable aviation fuel.


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