1 July 2015 – Boeing announced the next phase of their ongoing ecoDemonstrator 757 testing of environmental improvement concepts for commercial aviation. The multi-phase ecoDemonstrator program aims to increase testing and use of technologies to improve environmental performance and reduce environmental impact across the airplane’s lifecycle by improving fuel efficiency, cutting carbon emissions, and recycling production materials.
On June 17, the ecoDemonstrator 757 flew from Seattle to Langley Research Center in Hampton, VA using jet fuel comprised of a blend of 95% petroleum-based jet fuel and 5% of a renewable blending component produced by Diamond Green Diesel. Boeing is working with industry partners to pursue within ASTM the approval of an expanded HEFA-SPK definition that will allow for inclusion of molecules from renewable diesel production processes. Diamond Green Diesel produced the blending component from animal fat waste, inedible corn oil, and used cooking oil, and estimates a reduction in lifecycle CO2 emissions up to 80% less from petroleum jet fuel. The eventual approval of this fuel should result in wider availability of renewable jet fuel blends, as well as improving affordability versus petroleum-based Jet-A fuel.
The ecoDemonstrator 787 made the first flights with this "HEFA Plus" blending component in December 2014. Read full Biofuels International article here.