The UK is moving towards a new stage in aviation decarbonization with the launch of QRITOS, a project led by Rolls-Royce, British Airways, Imperial College London, and Heathrow Airport. QRITOS aims to reduce not only CO₂ emissions but also the climate impact of contrails. These clouds of ice crystals, responsible for warming that can exceed the CO₂ emitted by a flight, are becoming one of aviation’s major challenges.

QRITOS focuses on a key principle: fuel chemistry matters. Cleaner fuels generate less soot, reducing ice nucleation points and, therefore, the formation of persistent contrails. The project analyzes flights with a high probability of generating contrails and assesses how the selective use of Fischer-Tropsch (FT) SAFs can lessen their impact.

This approach aligns with the advancements of Avioxx, whose ultra-clean SAF FT has been specifically designed to minimize particulate emissions. Its results—0% aromatics, zero sulfur, and n-paraffin levels close to 73%—position it as an optimal fuel for reducing icing at high altitudes. The company maintains that contrail mitigation is essential to understanding the true climate impact of aviation, which can be two to three times greater than reported CO₂ emissions.

As the UK moves toward a 10% SAF blend by 2030 and 22% by 2040, QRITOS proposes a smart strategy: deploying SAF where it truly matters. Given the limited supply, allocating it to specific flights—based on atmospheric conditions, altitude, and thrust phases—offers a significantly greater climate benefit than applying uniform percentages.

Rolls-Royce has emphasized that a minority of flights generate the majority of the potential climate impact, presenting a strategic opportunity for the industry. With verifiable data and ultra-clean chemical properties, Avioxx’s SAF aligns directly with this vision, supporting a future where fuels are no longer mined: they are engineered.

Source and Credits to Avioxx

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