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US 11,697,221 B2Granted
Cooling acetylated wood elements
AssigneeTricoya Technologies Ltd
InventorsTheodorus Gerardus Marinus Maria Kappen, Stephen John Benstead
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Abstract
A process for the production of acetylated wood elements, a cooling system and a wood acetylation plant are described. A process for the production of acetylated wood elements comprises acetylating wood elements and cooling the acetylated wood elements wherein the cooling comprises supplying liquid water to the acetylated wood elements to provide wetted wood elements and exposing the wetted wood elements to a gas flow.
Claims15
A process for the production of acetylated wood elements, comprising:
- acetylating wood elements selected from the group consisting of wood chips, wood strands, and wood particles;
- and
- cooling the acetylated wood elements, the cooling comprising:
- spraying the acetylated wood elements with liquid water to provide wetted wood elements having a temperature of at least 120° C. and containing 10 to 500 g water per 1 kg dry wood elements;
- and
- exposing the wetted wood elements having the temperature of at least 120° C. and containing 10 to 500 g water per 1 kg:
- dry wood elements to a gas flow having a flow direction to contact the gas flow with the wetted wood elements,
- wherein the temperature of the wetted wood elements decreases by at least 30° C. during said exposing of the wetted wood elements to the gas flow.
5 more elements
Dependencies are inferred from the claim text.