Pre-treated biomass having enhanced enzyme accessibility

A technology of biomass and composition, applied in the direction of biofuel, fermentation, etc.

Inactive Publication Date: 2013-06-12
可再生能源试用股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, little work or research has been done to process biomass with more accessible enzymes

Method used

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  • Pre-treated biomass having enhanced enzyme accessibility
  • Pre-treated biomass having enhanced enzyme accessibility
  • Pre-treated biomass having enhanced enzyme accessibility

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Embodiment Construction

[0008] Plant biomass is the preferred raw material for the fermentation method (process, process). Preferred feedstocks for producing high enzyme-accessible steam are provided below.

[0009] Besides starch, the three main constituents in plant biomass are cellulose, hemicellulose and lignin, commonly referred to by the generic term lignocellulose. Polysaccharide-containing biomass as a general term includes both starch and lignocellulosic biomass. Thus, some types of feedstock can be plant biomass, polysaccharide-containing biomass, and lignocellulosic biomass.

[0010] If the biomass is polysaccharide-containing biomass and it is lignocellulosic, often pretreatment is used to ensure that the enzymes are given a more accessible structure to the lignocellulosic content, while ensuring that harmful by-products such as acetic acid, furfural and hydroxymethyl are inhibited Furfural is kept in fairly low concentrations.

[0011] According to the present invention, polysaccharid...

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Abstract

This invention is to a biomass composition of 5 and 6 carbon sugars, lignin, and cellulose which has been steam exploded and the composition has a very high enzyme accessibility at 24 hours for hydrolysis.

Description

technical field [0001] The object of the invention is the use of biomass to be hydrolyzed in energy production. Background technique [0002] The use of biomass in second generation ethanol processes is known. A typical approach would be to pretreat the biomass by at least one steam explosion (steam explosion), hydrolyze the cellulose in the presence of enzymes, and then ferment the resulting product to ethanol. WO2009 / 108773 discloses a possible preprocessing equipment setup with conceptual method steps. While WO2009 / 108773 provides an apparatus, it does not provide operational details for carrying out or treating biomass. [0003] Past research has focused on developing or selecting better enzymes to hydrolyze cellulose so that the hydrolysis step can proceed more quickly. However, little work or research has been done to process biomass in a way that is more accessible to enzymes. As is known, the more accessible the material prior to hydrolysis, the faster the hydrol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08H8/00
CPCC08H8/00C08L5/14C08L97/02C12P2201/00Y02E50/10C08L5/00C12P7/10
Inventor 保罗·托雷弗朗西斯科·凯尔基皮耶罗·奥托内洛西莫内·费雷罗
Owner 可再生能源试用股份公司
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