The corn stover used in the SAFFiRE process is a waste feedstock that would otherwise be left to decompose in the fields. Corn stover is collected by or purchased from local farmers and processed through a proprietary deacetylation and disk refining technology developed by NREL called “pretreatment.” Once the corn stover is pretreated, we use existing, proven technology to hydrolyze, ferment, and separate it into renewable ethanol. Alcohol-to-jet technology is utilized to ultimately upgrade renewable ethanol into fully certified sustainable aviation fuel that can be used in aircraft.

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