发明名称 |
Method to produce water-soluble sugars from biomass using solvents containing lactones |
摘要 |
A process to produce an aqueous solution of carbohydrates that contains C6-sugar-containing oligomers, C6 sugar monomers, C5-sugar-containing oligomers, C5 sugar monomers, or any combination thereof is presented. The process includes the steps of reacting biomass or a biomass-derived reactant with a solvent system including a lactone and water, and an acid catalyst. The reaction yields a product mixture containing water-soluble C6-sugar-containing oligomers, C6-sugar monomers, C5-sugar-containing oligomers, C5-sugar monomers, or any combination thereof. A solute is added to the product mixture to cause partitioning of the product mixture into an aqueous layer containing the carbohydrates and a substantially immiscible organic layer containing the lactone. |
申请公布号 |
US9045804(B2) |
申请公布日期 |
2015.06.02 |
申请号 |
US201313736550 |
申请日期 |
2013.01.08 |
申请人 |
Wisconsin Alumni Research Foundation |
发明人 |
Dumesic James A.;Luterbacher Jeremy S. |
分类号 |
C07H1/00;C13K1/02;C13K1/06;C13K13/00 |
主分类号 |
C07H1/00 |
代理机构 |
DeWitt Ross & Stevens S.C. |
代理人 |
Leone, Esq. Joseph T.;DeWitt Ross & Stevens S.C. |
主权项 |
1. A process to produce an aqueous solution of carbohydrates comprising C6-sugar-containing oligomers, C6-sugar monomers, C5-sugar-containing oligomers, C5-sugar monomers, or any combination thereof, the process comprising:
(a) reacting biomass or a biomass-derived reactant with a solvent system comprising (i) an organic solvent selected from the group consisting of beta-, gamma-, and delta-lactones, and combinations thereof, and (ii) at least about 1 wt % water; in the presence of an acid catalyst for a time and under conditions to yield a product mixture wherein at least a portion of water-insoluble C6-sugar-containing polymers or oligomers, or water-insoluble C5-sugar-containing polymers or oligomers, if present in the biomass or biomass-derived reactant, are converted to water-soluble C6-sugar-containing oligomers, C6-sugar monomers, C5-sugar-containing oligomers, C5-sugar monomers, or any combination thereof; and then (b) adding a solute to the product mixture of step (a) in an amount sufficient to cause partitioning of the product mixture into an aqueous layer and a substantially immiscible organic layer. |
地址 |
Madison WI US |