Biomass treatment
AssigneeBio-Sep, Inc.
InventorsKen DAY, Andrew WEST
Life of this patent
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Abstract
According to a first aspect, there is provided a method of fractionating a biomass material. The method comprises treating the biomass material with an aqueous medium to form a slurry. The method further comprises subjecting the slurry to sonication to produce a sonicated mixture comprising a liquid component (L) and a solid component (S) comprising lignin and cellulose. The aqueous medium can comprise an acid (preferably organic acid) catalyst.
Claims32
A method of fractionating a biomass material, said method comprising:
- dispersing biomass material in an aqueous medium comprising an acid to form a slurry, wherein the aqueous medium either does not comprise ketone or comprises ketone in an amount of less than 10 weight %;
- sonicating the slurry to produce a sonicated mixture comprising a liquid component (L) comprising hemicellulose hydroxylates and a solid component (S) comprising lignin and cellulose,
- wherein ratio of the weight of the lignin in the solid component (S) to the weight of the lignin in the liquid component (L) is greater than 2:1;
- and
- wherein said method further comprises separating the lignin from the cellulose in the solid component.
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Dependencies are inferred from the claim text.