This new fuel will make air travel more sustainable environmentally and increase our national energy resources. In contrast to traditional petroleum-based fuels, these new alternative fuels can reduce air quality emissions and are renewable.
In collaboration with the aviation industry, the FAA approves new renewable jet fuel pathways through ASTM International. The FAA’s Continuous Lower Energy, Emissions and Noise (CLEEN) partnership with industry was crucial in completing the necessary steps to support ASTM International approval of this new fuel, known as Alcohol to Jet Synthetic Paraffinic Kerosene (ATJ-SPK). It is created from an alcohol called isobutanol that is derived from renewable feed stocks such as sugar, corn or forest wastes.
Other previously approved fuels include:
These new fuels will help the aviation industry meet its climate change goal of carbon neutral growth. For example, operation with ATJ-SPK could reduce greenhouse gas emissions on a life-cycle basis by up to 85 percent.
As more alternative jet fuels are developed, these products have the potential to be increasingly viable for cost-competitive production and broad use. Another cost-saving goal and FAA focus area is a “drop-in” requirement for alternative fuels.
That means the fuels can be used directly in existing aircraft without any modification to engines or other equipment while maintaining an equivalent level of safety and performance to petroleum jet fuels.
In addition to CLEEN, the FAA is working with industry, other government agencies and academia through the Commercial Aviation Alternative Fuels Initiative (CAAFI) and the agency’s Aviation Sustainability Center (ASCENT), a consortium of research universities.
The U.S. Federal Aviation Administration has approved a biofuel made from isobutanol—an alcohol derived from such raw materials as sugar, corn and forest waste—for planes. It's the fifth biofuel the FAA has approved, and the agency said it will reduce emissions and help the aviation industry maintain its carbon footprint even as the industry grows.
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