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US 10,519,477 B2Granted
Self-sufficient process for the production of biomass hydrolysate with reduced salt content
AssigneeClariant International Ltd.
InventorsMichael Zavrel, Danielle Dennewald, Philip Hoffmann, Marcus Verhuelsdonk
Life of this patent
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Abstract
The present invention is directed to a self-sufficient process for the production of biomass hydrolysate with reduced salt content as well as the de-salted hydrolysate produced after the inventive process and the use of the de-salted hydrolysate as a fermentation medium.
Claims10
Process for the production of de-salted biomass hydrolysate comprising the steps
- a) Providing a biomass;
- b) Acidic pretreatment of the biomass;
- c) Hydrolysis of the biomass to obtain a biomass hydrolysate;
- d) Solid-liquid separation of the biomass hydrolysate to obtain a solid phase and a liquid phase;
- e) Deionization of the liquid phase by electrodialysis using at least one bipolar membrane;
- f) Separation of an acid and/or an alkaline fraction from the deionized liquid phase;
- g) Addition of at least part of the separated acid fraction to step b)
- wherein steps a) to g) are repeated at least once.
5 more elements
Dependencies are inferred from the claim text.