Chemical transformation of lignocellulosic biomass into fuels and chemicals
AssigneeWisconsin Alumni Research Foundation
InventorsJoseph Bartholomew BINDER, Ronald Thaddeus Raines
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Abstract
A method for converting a carbohydrate to a furan in a polar aprotic solvent in the presence of a chloride, bromide, or iodide salt or a mixture thereof and optionally in the presence of an acid catalyst, a metal halide catalyst and/or an ionic liquid (up to 40 wt %). The method can be employed in particular to produce furfural or 5-hydroxymethylfurfural.
Claims39
A method for converting a carbohydrate to a furan which comprises the steps of:
- (a) preparing a mixture of the carbohydrate in a polar aprotic solvent containing a chloride, bromide, or iodide salt;
- (b) heating the mixture to obtain a furan.
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The method of claim 39 wherein the ionic liquid is selected an alkylimidazolium ionic liquid, an alkylimidazolium halide ionic liquid, an alkylimidazolium chloride ionic liquid, an alkylpyridinium ionic liquid, an alkylpyridinium halide ionic liquid, an an alkylpyridinium chloride ionic liquid or a combination thereof.
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A method for generating one or more monosaccharides from biomass which comprises the step of contacting the biomass with a polar aprotic solvent containing a chloride, bromide or iodide salt and a catalyst.
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A monosaccharide feedstock comprising a monosaccharide in a polar aprotic solvent and a chloride, bromide or iodide salt.
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Dependencies are inferred from the claim text.