Intensive Testing

Biokerosene research and test programs have taken place worldwide. The test results are the basis to support further sustainable biofuel development. The testing

engages fuel suppliers, engine companies, and the airlines as a team effort to address industry concerns about carbon dioxide emissions, safety, fuel availability, and cost.

The Bio-SPK fuel blends used in test flights have all either met or exceeded the performance specifications for jet fuel. For example, the Bio-SPK fuel blends demonstrated higher energy density per unit mass than typical jet fuel, enabling airplanes to travel further using less fuel. For all of the test flights, the blended biofuel displayed no adverse effects on any of the aircraft systems.

On 11 June 2011, the ASTM gave preliminary approval to use algae and Jatropha as a biokerosene. Final approval followed in August 2011.

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