C - Chemistry – Metallurgy – 10 – B
Patent
C - Chemistry, Metallurgy
10
B
C10B 53/00 (2006.01) A62D 3/00 (2006.01)
Patent
CA 2067147
WASTE DISPOSAL PROCESS Abstract In a process for the disposal of toxic and/or infectious waste, especially highly halogenated solids, plastic containers, hos- pital waste and the like, to recover useful substances and render inert non-recyclable and unoutgassable residues, outgassing by the pyrolytic process is used, with air excluded and a reduced oxygen content, followed by the direct incineration of the distilla- tion gases obtained from pyrolysis or their cracking to form a pyrolysis separation gas. The waste to be disposed of is inserted in an autoclave (2), partially outgassed there for a period of 20 minutes to 6 hours at about 250 to 320 °C in an initial outgassing stage, then cooled and made into a granulate or pellets measuring from I to 50 mm, which are subsequently treated by the pyroly- sis outgassing method in a second outgassing stage at a temperature of 550 to 600 °C. This generates distillation gas which is sep- arated from the residues, like carbon. ash, heavy metal particles and other components. The liquid partial outgassing intermediate products, like oil and/or coal tars, produced in the autoclave (2) are taken to the second outgassing stage, while the distillation gas separated off in the first outgassing stage in the autoclave (2) is taken off and added to the stream of distillation gas from the second outgassing stage.
Pka Pyrolyse Kraftanlagen Gmbh
Swabey Ogilvy Renault
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