On November 14th, the passengers on Alaska Airlines flight #4 received some interesting news. Joe Sprague, Alaska Airlines’ senior vice president of communications and external relations, stepped onto …more
NARA is optimizing a conversion process that converts the carbohydrates in woody biomass into bio-jet fuel and other chemical products. Depending on the tree species, up to 60% of the dry weight of wood is carbohydrates. That leaves the remaining 40% of the woody biomass as a byproduct. In order to maximize the economic sustainability of a wood-to-biofuel industry, converting the byproduct into …more
On June 7th, Alaska Airlines fueled two commercial flights using a 20% blend of Gevo’s renewable biojet fuel made from sustainable U.S. corn. These flights represent the first commercial flights fueled with biojet fuel made using Gevo’s alcohol-to-jet technology.
Read the news release here. A video is available here.
Gevo has developed fermentation and process technology to convert biomass sugars to isobutanol and further into renewable jet fuel through chemical processing. As a key member of the NARA project, Gevo has developed GIFT®, Gevo Integrated Fermentation Technology, to produce isobutanol at high productivity, titer, …more
The Northwest Advanced Renewables Alliance (NARA) congratulates our fuels partner, Gevo, Inc. for ASTM International’s inclusion of Gevo’s alcohol to jet (ATJ) synthetic paraffinic kerosene (ATJ-SPK) into ASTM D7566 (Standard Specification for Aviation Turbine Fuel Containing Synthesized Hydrocarbons). This inclusion makes Gevo’s ATJ-SPK eligible to be used as a blending component, up to 30%, in standard Jet A-1 fuel used by commercial airlines in the United States and in many other countries around the globe.
Pretreatment is the process that breaks up major wood components (lignin and polysaccharides like hemicelluloses and cellulose) so that enzymes can degrade (hydrolyze) the polysaccharides into simple sugars. Effective pretreatment and hydrolysis are necessary to achieve high sugar quality and yield. The sugars derived from the pretreatment/hydrolysis process can serve as a …more
Under the conditions evaluated by NARA to convert post-harvest forest residuals into biojet fuel, approximately two-thirds of the woody material is left over as a byproduct. This left over material is rich in lignin, a complex polymer molecule found in plant cell walls.
The USDA-NIFA, through the NARA grant, funds research to develop high-value chemicals and materials that can be made from the lignin-rich material left after the various …more
A key issue attached to the use of post-harvest forest residuals (slash) to make biojet fuel and other chemical products is how slash removal impacts the productivity and ecology of a working forest. The USDA-NIFA, through the NARA project, funds research to evaluate the impacts of slash removal on …more
When it comes to evaluating an industry that uses post-harvest forest residuals (slash) to make bio-jet fuel and co-products, the primary components in softwoods, like Douglas-fir, receiving the most industrial interest are cellulose, hemicellulose and lignin. The cellulose and hemicellulose contain the simple sugars used to biofuel and other chemical products. The lignin is a byproduct of the fuel conversion process and can be used to make additional products like …more