System and method for converting biomass
Published online: Apr 17, 2008
| Geographical region | Europe |
|---|---|
| Subject | Processing of biomass into useful chemicals |
| Published date | Mar 26, 2008 |
| Title | System and method for converting biomass |
| Patent Application Number | EP1902139 A2 |
| Assignee | Texas A & M Univ Sys, USA |
| Relevance | System and method for converting biomass into useful chemicals such as carboxylic acids and alcohols. |
| Type of claims | Publication |
| Overview | This patent discloses a system and method for converting biomass into useful chemicals by fermentation wherein the fermentors contain a buffer consisting of ammonium carbonate and ammonium bicarbonate. The buffer reduces or eliminates solid handling and allows simplified downstream processing of the fermentation broth. The process involves, A) fermenting biomass in fermentors to produce a fermentation broth comprising ammonium carboxylate salt, B) reacting the ammonium carboxylate salt with a high-molecular-weight alcohol to produce a high-molecular-weight ester and C) hydrogenating the high-molecular weight ester to produce alcohol. D) following step (A) for producing carboxylic acid, is by reacting the ammonium carboxylate salt with a high-molecular-weight amine to produce amine carboxylate salt and thermally cracking the amine carboxylate salt to produce carboxylic acid. |
| Related patent documents |
US Patent publications
Not Listed Foreign patent publicationsNot Listed |
| Patent Document | Full Patent Document [external link] |
Displaying 4 keywords used to tag this article:
- amine
- buffer
- fermentation
- carboxylic acids
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