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US 8,475,880 B2Granted
Process and apparatus for the heat treatment of a wood product and treated wood product
AssigneesSerex, Inc., Valuqat S.E.C.
InventorsAbdelkader Chaala, Ahmed Koubaa
Life of this patent
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Abstract
A process and apparatus for treatment of wood, typically moist wood, using a heated bioester derived from vegetable oil or animal fat. The bioester exhibits a decreased viscosity versus other methods of heated oil treatment thereby providing for deep penetration of the heated bioester into the wood.
Claims22
A process for the heat treatment of a wood product, the process comprising:
- placing the wood product in a reactor vessel;
- heating bioesters in a heater to a predetermined temperature;
- introducing said bioesters into said reactor vessel until the wood product is covered with said bioesters;
- retaining the covered wood product in said reactor vessel for a predetermined period of time;
- removing the treated wood product from said reactor vessel;
- and
- recovering substantially all of said bioesters from the treated wood product;
- wherein said bioesters act as a heating medium and said bioesters may be used a plurality of times as said heating medium without additional processing.
5 more elements
An apparatus for heat treating a wood product comprising:
- a reactor vessel configured to receive the wood product;
- a source of bioesters heated to a predetermined temperature;
- a means for introducing the wood product into said vessel;
- a means for covering the introduced wood product with said heated bioesters for a predetermined time;
- and
- draining said bioesters from said heat treated wood product;
- wherein said bioesters act as a heating medium and substantially none of said bioesters remain in said drained heat treated wood product.
4 more elements
A process for the heat treatment of a wood product, the process comprising:
- placing the wood product in a vessel;
- heating a treatment product having a kinematic viscosity of less than 20 cSt at 40° C. to a predetermined temperature;
- introducing said treatment product into said vessel until the wood product is covered with said treatment product;
- removing the treated wood product from said vessel;
- and
- recovering substantially all of said treatment product;
- wherein said treatment product is bioesters, said bioesters act as a heating medium and further wherein said bioesters may be used as said heating medium a plurality of times without reprocessing.
4 more elements
Dependencies are inferred from the claim text.