Process for treating lignocellulosic material, and apparatus for carrying out the same
Assignee9103-7366 Québec Inc.
InventorAndré Brunet
Life of this patent
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Abstract
A process for treating lignocellulosic material, such as wood for example, the process including the steps of: a) providing lignocellulosic material; b) evaluating parameters of the lignocellulosic material; c) preparing the lignocellulosic material; d) heating the lignocellulosic material in a treatment chamber following a given profile based on parameters of the lignocellulosic material; e) stabilizing the lignocellulosic material; and f) cooling down the lignocellulosic material. The process enables to improve the quality of the wood being treated, while ensuring a greater repeatability and uniformity of coloring results, and overcoming drawbacks associated with conventional torrefaction methods.
Claims18
A process for treating lignocellulosic material, the process comprising the steps of:
- a) providing lignocellulosic material;
- b) evaluating parameters of the lignocellulosic material;
- c) preparing the lignocellulosic material;
- d) heating the lignocellulosic material in a treatment chamber following a given profile based on parameters of the lignocellulosic material;
- e) stabilizing the lignocellulosic material;
- and
- f) cooling down the lignocellulosic material;
- wherein a gas pipe opens near a top portion of the treatment chamber;
- wherein a water basin is filled with a volume of water for maintaining about 0.5 kg of positive pressure inside the treatment chamber during step c);
- wherein gases are evacuated by the gas pipe when the pressure inside the treatment chamber becomes greater than about 0.5 kg;
- wherein the gases are led to the water basin, wherein dust and particles are left in the water itself, and wherein residual gases are allowed to continue onward to an evacuation pipe;
- and wherein the gases are entered from the evacuation pipe and into a combustion chamber, and wherein said gases are burnt by a gas inside the combustion chamber.
Dependencies are inferred from the claim text.