Aviation Biofuels

There are few options to tackle emissions in the aviation sector, and the adoption of biofuels is one of them. The process of approval for fuels in aviation is intricate. Nevertheless, currently there five three types of biofuels approved by the ASTM international  D7566 - Standard Specification for Aviation Turbine Fuel Containing Synthesized Hydrocarbons -  to be deployed in aviation:

• FT - SPK (Fischer-Tropsch Synthesized Paraffinic Kerosine)
• HEFA (Hydroprocessed Esters and Fatty Acids)
• SIP (Synthesized Iso-Paraffinic)
• FT - SPK/A (Fischer-Tropsch synthesized paraffinic kerosine plus Aromatics)
• ATJ (Alcohol to jet)

References

• IEA Bioenergy (2017): Drop-in biofuels for international marine and aviation markets. Summary and conclusions from the IEA Bioenergy ExCo 78 Workshop. Edited by IEA Bioenergy. International Energy Agency (IEA). Paris. Available online at https://www.ieabioenergy.com/wp-content/uploads/2017/04/ExCo78-Drop-in-biofuels-for-marine-and-aviation-markets.pdf