Back to results
US 10,385,140 B2Granted
Cellulose-containing compositions and methods of making same
AssigneeRenmatix, Inc.
InventorsEwellyn A. Capanema, Mikhail Y. Balakshin, Patrick David Fitzgibbon, Matyas Kosa, Todd Michael McLarty, Charles Sebastian Sanderson
Life of this patent
Estimating the term…
Abstract
Cellulose-containing compositions and method of making same are disclosed. The compositions comprise a cellulose product comprising a type-I cellulose, a type-II cellulose, amorphous cellulose, or a combination thereof. Further, methods are disclosed for making these compositions and for further hydrolyzing these compositions. Additionally, uses for the cellulose-containing compositions are disclosed.
Claims20
A method comprising:
- providing a feedstock comprising a type-I cellulose;
- converting at least a portion of the type-I cellulose by contacting the feedstock with a fluid comprising a near critical or a supercritical water at a temperature above about 300° C. to form a cellulose product comprising a type-II cellulose;
- and
- hydrolyzing at least a portion of the type-II cellulose to form a hydrolyzed cellulose product.
1 more element
A method comprising:
- providing a feedstock comprising a type-I cellulose;
- converting at least a portion of the type-I cellulose by contacting the feedstock with a fluid comprising a sub-critical, near-critical, or a supercritical water to form a composition comprising a cellulose product, wherein the cellulose product comprises unconverted type-I cellulose and a type-II cellulose, and
- hydrolyzing, in a different step from the converting, at least a portion of the unconverted type-I cellulose at the same or different conditions as the converting.
A method comprising:
- providing a feedstock comprising a type-I cellulose;
- converting at least a portion of the type-I cellulose to a type-II cellulose;
- and
- hydrolyzing at least a portion of the type-II cellulose;
- wherein the converting produces a composition comprising a cellulose product, wherein the cellulose product comprises an unconverted type-I cellulose and the type-II cellulose;
- and wherein the uncoverted type-I cellulose is recovered.
3 more elements
Dependencies are inferred from the claim text.