Method and device for recycling waste by pyrolisis and...

C - Chemistry – Metallurgy – 10 – B

Patent

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C10B 53/00 (2006.01) C10B 55/00 (2006.01)

Patent

CA 2172500

A low-energy, non-polluting method for reducing waste, and associated plant, are disclosed. Waste such as worn tyres, lead-acid batteries, old oils, sawdust, papers, rags, plastics, etc. are recycled directly as industrial quality secondary products or indirectly by reaction with the decomposition vapours of the above. A plant for implementation of said method will consist essentially of a large multi-wall furnace under different stages of vacuum, heating elements and one or more fluid ring pumps providing a reaction with the volatile matter. Continuous processing can be achieved by associating liquid waste with divided solids. A high temperature device breaks down the complex volatile matter and backscatter. By combining several units, chemical and synthesis reactions are possible.

La présente invention concerne un procédé non-polluant et ?conome en énergie, de réduction des déchets et son installation. Des déchets tels que: pneus usés, accumulateurs au plomb, huiles usagées, sciures, papiers, chiffons, plastiques, etc., sont valorisés directement en produits secondaires de qualité industrielle ou indirectement par réaction avec les vapeurs de décomposition des premiers. Une installation suivant ce procédé sera essentiellement constituée d'un four multi-parois sous vides étagés de grandes dimensions, associé à des éléments de chauffage et à une ou plusieurs pompes à anneau fluide en réaction avec les produits volatils. L'association d'un déchet liquide à des solides fractionnés permet un traitement en continu. Un dispositif haute température décompose les produits volatils complexes et les rétro-diffusions. La combinaison de plusieurs installations permet des réactions chimiques et de synthèses.

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