Methods of removing one or more compounds from a lignocellulosic hydrolysate via gas stripping, and related systems
AssigneePOET Research, Inc.
InventorsDavid Charles Carlson, Benjamin M. Gerdes, Casey C. Jenks, Ryan J. Bouza, Cory James Sarks
Life of this patent
Estimating the term…
Abstract
The present disclosure includes methods and systems for removing one or more fermentation inhibitors (e.g., furfural) from a hydrolysate composition (e.g., a whole broth hydrolysate) by gas stripping the one or more fermentation inhibitors from the hydrolysate composition.
Claims26
1) A method of removing at least a portion of furfural from a hydrolysate composition, wherein the method comprises:
- a) providing a whole broth hydrolysate composition comprising:
- i) pentose;
- ii) furfural, wherein the furfural is present in a first concentration;
- iii) cellulose and/or hexose;
- and
- iv) lignin;
- b) injecting a first volume of a gas into the whole broth hydrolysate composition to provide a treated, whole broth hydrolysate composition, wherein the treated, whole broth hydrolysate composition comprises furfural in a second concentration, wherein the second concentration is less than the first concentration;
- and
- c) recovering a second volume of the gas from the treated, whole broth hydrolysate composition, wherein the second volume of the gas comprises furfural.
14) (canceled)
17) A system for removing at least a portion of furfural from a whole broth hydrolysate composition, wherein the system comprises:
- a) a source of a whole broth hydrolysate composition, wherein the whole broth hydrolysate composition comprises:
- i) pentose;
- ii) furfural, wherein the furfural is present in a first concentration;
- iii) cellulose and/or hexose;
- and
- iv) lignin;
- b) a gas injection system in fluid communication with the source of the whole broth hydrolysate composition, wherein the gas injection system is configured to inject a volume of a gas component into the whole broth hydrolysate composition to provide a treated, whole broth hydrolysate composition, wherein the treated, whole broth hydrolysate composition comprises furfural in a second concentration, wherein the second concentration is less than the first concentration;
- and
- c) a gas recovery system in fluid communication with the whole broth hydrolysate composition, wherein the gas recovery system is configured to recover a second volume of the gas from the whole broth hydrolysate composition, wherein the second volume of the gas comprises furfural.
19) (canceled)
20) (canceled)
21) (canceled)
22) (canceled)
25) A method of removing at least a portion of furfural from a hydrolysate composition, wherein the method comprises:
- a) contacting lignocellulosic biomass with an aqueous composition to hydrolyze hemicellulose present in the lignocellulosic biomass to form a hydrolysate composition, wherein the hydrolysate composition comprises a pentose liquor comprising sulfuric acid and furfural, wherein the furfural is present in a first concentration;
- b) injecting a volume of a gas component into the hydrolysate composition to provide a treated, hydrolysate composition, wherein the treated, hydrolysate composition comprises furfural in a second concentration, wherein the second concentration is less than the first concentration;
- and
- c) recovering a second volume of the gas from the treated, hydrolysate composition, wherein the second volume of the gas comprises furfural.
26) (canceled)
Dependencies are inferred from the claim text.