Patent · US Active

Process for producing, in particular ethanol, by sequenced enzymatic hydrolysis of cellulose and hemicelluloses of a lignocellulosic raw material

US11021720B2 · kind B2 · utility

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1References
15Claims
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Key dates

Filing dateJun 3, 2015
Grant dateJun 1, 2021
Priority date
Expiry dateJun 3, 2035

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E50/10
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A process for producing ethanol includes steps of pre-treatment of the lignocellulosic vegetable raw material, including the steps consisting in destructuring the lignocellulosic vegetable raw material, then in separating, on the one hand, the cellulose (C6) capable of then being hydrolysed (and fermented for the production of ethanol) and, on the other hand, the hemicelluloses capable of then being hydrolysed and the lignins. The hydrolysis of the cellulose and of the hemicelluloses is then carried out in a sequenced manner according to the following steps consisting in:

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.