Method for drying biomass
AssigneeEvonik Degussa GmbH
InventorsChristian Rabe, Hans Christian Alt, Frank Fischer, Stefan Eils, Horst Priefert, Michael Diehl
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Abstract
It has been found in accordance with the invention that a biomass comprising an oxidation-sensitive material of value may be particularly readily converted into a particulate, flowable composition if a silica, especially a hydrophilic or hydrophobic silica, is added as additive.
Claims21
1-15. (canceled)
A method for preparing a particulate free-flowing biomass comprising an oxidation-sensitive material of value, wherein said method comprises:
- a) obtaining a fermentation broth comprising biomass;
- b) optionally concentrating said fermentation broth to produce a concentrated broth;
- c) drying either said fermentation broth or said concentrated broth;
- d) adjusting the amount of silica in said fermentation broth or said concentrated broth either before or after the drying of step c) so that the concentration of silica in said particulate free-flowing biomass is 0.1-8% by weight.
A particulate free-flowing biomass comprising an oxidation-sensitive material of value and silica in an amount of 0.1 to 8% by weight.
Dependencies are inferred from the claim text.