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US 12,479,962 B2Granted
Fractionation of woody biomass using phenol-4-sulfonic acid (PSA)
AssigneeThe Board of Trustees of Western Michigan University
InventorsQiang Yang, Duo He
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Abstract
A method of fractionating lignocellulosic biomass includes fractionating lignocellulos biomass in an aqueous phenol-4-sulfonic acid (PSA). The process may provide complete or nearly complete fractionation under mild conditions.
Claims10
A method of fractionating lignocellulosic biomass, the method comprising:
- fractionating lignocellulosic biomass in an aqueous phenol-4-sulfonic acid (PSA) comprising at least about 60% weight percentage PSA at a temperature of about 50° C.-80° C. for about 0.5 hours to about 3.0 hours to form a mixture comprising fractionated woody biomass and adsorbed PSA.
Dependencies are inferred from the claim text.