Process for the thermal treatment of waste material
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United States of America Patent
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Jun 29, 1999
Grant Date -
N/A
app pub date -
Oct 24, 1996
filing date -
Jan 10, 1995
priority date (Note) -
Expired
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Abstract
The waste material is degasified under the action of heat in a pyrolysis chamber (2). The volatile degasifying products are subjected to afterburning with supply of oxygen in an afterburning chamber (4a or 4b or 4c) designed as a fluidized-bed reactor. The solids discharged from the afterburning chamber (4a or 4b or 4c) are separated off from the flue gas stream in a dust separator (8) and, preferably cooled in an external fluid-bed cooler, are recycled to the afterburning chamber (4a or 4b or 4c). The temperatures of above 2500.degree. C., which are produced in the afterburning of the carbonization gases having a high heating value (minimum 8000 kJ/m.sup.3 (S.T.P.), can be controlled.
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