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US 2014/0178944 A1Published application
Preservation of Biomass for Pretreatment
AssigneeSweetwater Energy, Inc.
InventorsSarad Parekh, Carl P. Felice
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Abstract
Provided are methods and compositions directed to increasing the rate and/or yield of sugar extraction processes using feedstocks. Also provided are methods and compositions for decreasing the yield of one or more undesirable products during pretreatment.
Claims31
A method of producing silage from a biomass, the method comprising:
- (a) packing the biomass in a container to a bulk density sufficient to reduce oxygen levels within and surrounding the biomass;
- (b) contacting the biomass with sulfur dioxide gas, formic acid, propionic acid, or a combination thereof to acidify the biomass;
- and
- (c) maintaining the biomass under conditions and for a time to produce silage from the biomass.
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Dependencies are inferred from the claim text.