Method for producing sugar solution
US-9212377-B2 · Dec 15, 2015 · US
In situ production of furfural in a controlled amount in an alcohol production unit from a lignocellulosic biomass
US8980595B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8980595-B2 |
| Application number | US-201013320323-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 7, 2010 |
| Priority date | May 15, 2009 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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Abstract
Official abstract text for this publication.
The present invention describes a process for the production of alcohol, known as second generation production, from a lignocellulosic substrate, in which a controlled quantity of furfural is produced in situ and which comprises at least the following steps: a first step for alkaline chemical pre-treatment of the substrate; a step for adjusting the pH of the substrate; then a step for enzymatic hydrolysis of said pre-treated substrate; a step for alcoholic fermentation of the hydrolysate obtained with an alcohol-producing microorganism; a step for separation/purification; and a step for acid conversion of at least one liquid fraction into furfural, said liquid fraction being obtained during one of the preceding steps; a step for mixing said furfural obtained with the pre-treated substrate during the pH adjusting step.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process of producing alcohol from a cellulosic or lignocellulosic substrate in which furfural is produced and which comprises at least the following steps: alkaline chemical pre-treating said substrate, comprising heating in the presence of an alkaline chemical reagent, at the end of which at least one stream comprising at least said chemical reagent and the pre-treated substrate are obtained, and optionally washing said pre-treated substrate, at…
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- C12P7/10Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Cross-Sectional Technologies · mapped topic
Chemistry & Metallurgy · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US8980595B2 cover?
- The present invention describes a process for the production of alcohol, known as second generation production, from a lignocellulosic substrate, in which a controlled quantity of furfural is produced in situ and which comprises at least the following steps: a first step for alkaline chemical pre-treatment of the substrate; a step for adjusting the pH of the substrate; then a step …
- Who is the assignee on this patent?
- Ropars Marcel, Aymard Caroline, Ghisoni Flora, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C12P7/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).