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US 12,722,976 B2Granted
Bio-based carbon foam
AssigneeStora Enso OYJ
InventorsDavid Masson, Stephan Walter, Oruç Köklükaya, Daniel Hult Torron
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Abstract
The present invention relates to bio-based carbon foams, a method for their manufacturing and their use. The method comprises foaming a slurry of cellulose fibres and a biomass component to obtain a biomass-cellulose fibre foam, and carbonization of said biomass-cellulose fibre foam.
Claims12
A bio-based carbon foam, the bio-based foam comprising:
- cellulose fibres and a biomass component that have been carbonized, wherein
- a density of the bio-based carbon foam is between 10 to 80 kg/m3, and
- a mean pore diameter of bio-based carbon foam is from 0.5 to 10 mm.
A method for the preparation of a bio-based carbon foam, the method comprising:
- a. suspending cellulose fibres and a biomass component in a liquid medium to obtain a slurry,
- wherein the biomass component is selected from lignin and lignocellulosic materials;
- b. foaming said slurry to obtain a biomass-cellulose fibre foam;
- and
- c. carbonization of the biomass-cellulose fibre foam to obtain a bio-based carbon foam, wherein the bio-based foam comprises a density between 10 to 80 kg/m3, and a mean pore diameter of bio-based carbon foam is from 0.5 to 10 mm.
2 more elements
Dependencies are inferred from the claim text.