Biomass shock pretreatment
First Claim
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1. A method of making a sugar-based product wherein a lignocellulosic or grain-based biomass is pretreated and sugars are extracted, comprising:
- pretreating the biomass by a process comprising;
introducing the biomass into a chamber;
feeding an explodable gaseous mixture into the chamber with the biomass;
igniting the gaseous mixture in the chamber to detonate it, creating a shock event that produces a shocked biomass;
transferring the shocked biomass from the chamber;
converting at least a portion of the shocked biomass into sugars;
extracting sugars from the shocked, converted biomass; and
converting at least a portion of the extracted sugars into a sugar-based product.
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Abstract
Methods and apparatus for treating biomass that may include introducing a biomass to a chamber; exposing the biomass in the chamber to a shock event to produce a shocked biomass; and transferring the shocked biomass from the chamber. In some aspects, the method may include pretreating the biomass with a chemical before introducing the biomass to the chamber and/or after transferring shocked biomass from the chamber.
9 Citations
19 Claims
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1. A method of making a sugar-based product wherein a lignocellulosic or grain-based biomass is pretreated and sugars are extracted, comprising:
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pretreating the biomass by a process comprising; introducing the biomass into a chamber; feeding an explodable gaseous mixture into the chamber with the biomass; igniting the gaseous mixture in the chamber to detonate it, creating a shock event that produces a shocked biomass; transferring the shocked biomass from the chamber; converting at least a portion of the shocked biomass into sugars; extracting sugars from the shocked, converted biomass; and converting at least a portion of the extracted sugars into a sugar-based product. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of making a sugar-based product wherein a lignin-based biomass is pretreated and sugars are extracted, comprising:
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pretreating the biomass by a process comprising; introducing the biomass into a high-pressure vessel; feeding an explodable gaseous mixture into the high-pressure vessel with the biomass; igniting the gaseous mixture in the chamber to detonate it, creating a shock event that produces a shocked biomass; transferring the shocked biomass from the high-pressure vessel; converting at least a portion of the shocked biomass into sugars; extracting sugars from the shocked, converted biomass; and converting at least a portion of the extracted sugars into a sugar-based product, wherein the shock event comprises a pressure increase of at least 100 psi in less than 1 second of elapsed time. - View Dependent Claims (10, 11, 12, 13)
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14. A method of making a sugar-based product wherein shock pretreatment is used to enhance biomass digestibility and sugars are extracted, comprising:
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pretreating a lignin-based biomass by a process comprising; treating the biomass with a chemical to produce a treated biomass; introducing the treated biomass into a high-pressure vessel; feeding an explodable gaseous mixture into the chamber with the biomass; igniting the gaseous mixture in the chamber to detonate it, creating a shock event that produces a shocked biomass; transferring the shocked biomass from the chamber; converting at least a portion of the shocked biomass into sugars; extracting sugars from the shocked, converted biomass; and converting at least a portion of the extracted sugars into a sugar-based product. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification