Alaska Airlines, Gevo to Demonstrate Renewable Alcohol-to-Jet Fuel in Upcoming Flight
by Jim Lane (Biofuels Digest) Alaska Airlines ups the ante in the search for sustainable, affordable jet fuels. In Colorado, Gevo and Alaska Airlines announced a strategic alliance to purchase Gevo’s renewable jet fuel and fly the first-ever commercial flight on alcohol-to-jet fuel (ATJ).
The demonstration flight is expected to occur after Gevo receives ASTM International certification for its fuel, sometime in mid to late 2015. Gevo has been working through the rigorous ASTM process for six years, which includes extensive engine testing and data analysis by all of the major original equipment manufacturers to establish the specification for this drop in fuel. Once approved, this fuel can be seamlessly integrated into the existing distribution infrastructure and onto commercial aircraft.
“Developing a domestic, competitively priced, sustainable supply of biofuels is fundamental to the future of American aviation,” said Joe Sprague, senior vice president of external relations at Alaska Airlines. “The cost of fossil-based jet fuel is one of the largest expenses for airlines. This investment in Gevo’s ATJ will help reduce our exposure to high fuel prices, minimize our carbon footprint and demonstrate growing demand for fuel alternatives.”
Gevo’s ATJ is produced at its demo biorefinery in Silsbee, TX, using isobutanol produced at its Luverne, MN, fermentation facility.
In March, NASA purchased volumes Gevo’s renewable alcohol-to-jet fuel (ATJ) for aviation use at the NASA Glenn Research Center in Cleveland, Ohio.
In December 2014, the US Navy’s Naval Air Systems Command announced its first successful alcohol-to-jet supersonic flight, fueled by Gevo’s renewable isobutanol. This was the first aviation test program to comprehensively test and evaluate the performance of a 50/50 ATJ blend in supersonic (above Mach 1) afterburner operations – a critical test to successfully clear the F/A-18 for ATJ operations through its entire flight envelope. This military specification would allow for commercial supply of ATJ fuel to the Navy and Marines Corps.
In April 2014, Gevo announced tan agreement with Lufthansa to evaluate Gevo’s renewable jet fuel with the goal of approving Gevo’s alcohol-to-jet fuel for commercial aviation use. Lufthansa’s testing is being supported through work with the European Commission.
The Alaska / Gevo partnership is a solid step towards commercializing the fuels, which Gevo has the capability to produce at demonstration levels. It would need an equity infusion to take the Silsbee technology to the next level.
In that context, consider the March 2015 memorandum of understanding between Praj Industries and Gevo, in which Praj would undertake to license up to 250 million gallons of isobutanol capacity for sugar-based ethanol plants over the next ten years. Gevo will market the isobutanol produced by Praj’s sub-licensees — which could well include airline customers via a Silsbee-like commercial scale conversion facility. READ MORE and MORE (Al Jazeera includes VIDEO)