Apparatus and method for the heat treatment of lignocellulosic material
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United States of America Patent
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Sep 5, 2006
Grant Date -
Aug 5, 2004
app pub date -
Nov 20, 2002
filing date -
Nov 20, 2002
priority date (Note) -
Expired
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Abstract
There is provided an apparatus and a method for heat treatment of lignocellulosic material. The apparatus comprises a treatment chamber and devices for circulating and recovering gases from the treatment chamber such as to provide a uniform temperature within the chamber and allow efficient drying of the material. This is achieved by injecting and recovering the gases from at least two sides of the treatment chamber.
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