Use of renewable deep eutectic solvents in a one-pot process for a biomass

Inactive Publication Date: 2020-07-09
NAT TECH & ENG SOLUTIONS OF SANDIA LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011]The one-pot biomass pretreatment, saccharification, and fermentation with bio-compatible deep eutectic solvents (DESs). The used bio-compatible DESs are tested for microbial, such as yeast, compatibility and toxicity. The pretreatment efficacy of the selected DESs are tested. The uses of the DESs for biomass processing eliminates the need to remove any solvent after biomass pretreatment, thus making the one-pot approach possible.
[0012]Using bio-compatible DESs enables a on

Problems solved by technology

(2-4) Current challenges to the realization of an affordable and scalable biomass conversion technology are those associated with complicated process designs, difficulties associated with efficient solvent recycle, and water consumption.
Process intensification and integration within a biorefinery context can be challenging because of the typical discrepancy between the conditions used for pretreatment and those used downstream for saccharification and fermentation.
Reagents used in pretreatment are usually not compatible with downstream processing (e.g., enzymatic saccharification and microbial fermentatio

Method used

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Examples

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Example

EXAMPLE 1

Biocompatible Choline-Based Deep Eutectic Solvents Enable One-Pot Production of Cellulosic Ethanol

[0048]Previous configurations of biomass conversion technologies based on the use of ionic liquids (ILs) suffer from problems such as high operating costs and large amounts of water used. There have been recent efforts toward process intensification and integration to realize a one-pot approach for biofuel production using certain ILs, but these typically still require pH adjustment and / or dilution after pretreatment and before saccharification and fermentation. Deep eutectic solvents (DESs) were investigated as an alternative to ILs to address these challenges, and the results obtained suggest that certain DESs are compatible with hydrolytic enzymes and common biofuel producing microorganisms such as Saccharomyces cerevisiae. Among the DESs investigated, choline chloride / glycerol (Ch12) achieved the highest rates of lignin extraction and pretreatment efficiency in terms of su

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Abstract

The present invention provides for a method to produce a biofuel and/or chemical compound from a biomass, the method comprising: (a) introducing a biomass and a deep eutectic solvent (DES), or mixture thereof, into a vessel to form a one-pot composition, wherein the DES, or mixture thereof, solubilizes the biomass; (b) introducing an enzyme and/or a microbe to the one-pot composition such that the enzyme and/or microbe produce a biofuel and/or chemical compound from the solubilized biomass; and, (c) optionally the biofuel and/or chemical compound is separated from the one-pot composition.

Description

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Claims

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Application Information

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Owner NAT TECH & ENG SOLUTIONS OF SANDIA LLC
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