Treating biomass to produce materials useful for biofuels
First Claim
Patent Images
1. A method comprising:
- a) providing a biomass containing polysaccharides; and
b) contacting the biomass with a solution containing at least one α
-hydroxysulfonic acid thereby hydrolyzing the biomass to produce at least one fermentable sugar containing product.
2 Assignments
0 Petitions
Accused Products
Abstract
Fermentable sugar useful for the production of biofuels can be produced from biomass by contacting the biomass with a solution containing at least one α-hydroxysulfonic acid. The α-hydroxysulfonic acid can be easily removed from the product and recycled.
39 Citations
35 Claims
-
1. A method comprising:
-
a) providing a biomass containing polysaccharides; and b) contacting the biomass with a solution containing at least one α
-hydroxysulfonic acid thereby hydrolyzing the biomass to produce at least one fermentable sugar containing product. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
-
-
34. A method comprising:
-
(a) providing a biomass containing polysaccharides; (b) contacting the biomass with a solution containing at least one α
-hydroxysulfonic acid in an amount of from about 1% wt. to about 55% wt., based on the solution, at a temperature within the range of about 50°
C. to about 150°
C. and a pressure within the range of 1 barg to about 10 barg thereby hydrolyzing the biomass to produce at least one fermentable sugar containing product;(c) removing at least a portion of the α
-hydroxysulfonic acid in its component form from the product by heating and/or reducing pressure to produce an acid-removed product containing at least one fermentable sugar; and(d) recycling the α
-hydroxysulfonic acid removed in step (c) to step (b) as components and/or in its recombined form. - View Dependent Claims (35)
-
Specification