Mobile processing plants might hold the key to harvesting agricultural waste on the farm for biofuels production.
Chemical engineers at Purdue University have come up with the concept and developed a new method to process agricultural waste and other biomass into biofuels. The method would utilize various types of biomass, including wood chips, switch grass, corn stover, rice husks, and wheat straw.
The approach would solve one of the major problems in using agricultural waste for biofuels – transporting the biomass to a plant for processing. “It makes more sense to process biomass into liquid fuel with a mobile platform and then take this fuel to a central refinery for further processing before using it in internal combustion engines,” says chemical engineer Rakesh Agrawal.
The new method, called fast-hydropyrolysis-hydrodeoxygenation, works by adding hydrogen into the biomass-processing reactor. The hydrogen for the mobile plants would be derived from natural gas or the biomass itself. However, Agrawal envisions the future use of solar power to produce the hydrogen by splitting water, making the new technology entirely renewable.
The method, which has the shortened moniker of H2Bioil — pronounced H Two Bio Oil — has been studied extensively through modeling, and experiments are under way at Purdue to validate the concept.




The Government Accountability Office (GAO) 
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