Waste processing
AssigneeChinook End-Stage Recycling Limited
InventorsOphneil Henry Perry, Rifat Al Chalabi
Life of this patent
Estimating the term…
Abstract
An apparatus (100) for processing waste material is provided which comprises a heat proof chamber (102), a hot gas inlet (106, 112) for heating the interior of the heat proof chamber (102), and a rotatable drum (118) for containing waste to be processed. The drum (118) has gaps (120) therein, is located within the heat proof chamber (102), and separated therefrom around its edge by a gap. The apparatus (100) is also provided with a drive (126, 128) for rotating the drum (118) at a speed such that, in use, waste material that is heat softened is centrifugally separated from the remainder of the waste and passes through the gaps (120) in the drum (118).
Claims24
A method of processing waste matter containing heat softening material, the method comprising:
- providing an apparatus for pyrolysing material containing organic matter said apparatus having a heated chamber in which said material containing organic matter is heated and a treatment chamber connected to said heated chamber by feed and return conduits;
- providing a waste processing apparatus having rotating drum having gaps therein
- placing the waste matter containing heat softening material in said rotating drum;
- pyrolysing said material containing organic matter within said heated chamber to produce syngas;
- circulating said syngas through said treatment chamber;
- treating said circulated gas in said treatment chamber by heating it in a substantially oxygen free environment;
- recycling at least part of said syngas through said heated chamber;
- and
- passing at least some of said syngas through said waste processing apparatus to heat the waste matter therein to a temperature sufficient to heat soften the heat softening material contained therein but not sufficient to pyrolyse the waste matter;
- and
- rotating the drum so as to cause the heat softened material to centrifugally separate from the remainder of the waste matter by passing through the gaps in the drum;
- wherein
- said hot syngas contains substantially no oxygen.
An apparatus for processing waste matter containing heat softening material, the apparatus comprising:
- a pyrolysing apparatus for pyrolysing material containing organic matter, said pyrolysing apparatus comprising a heated chamber in which said material containing organic matter is heated to produce a syngas, and a treatment chamber connected to said heated chamber by feed and return conduits;
- a waste processing apparatus comprising:
- a heat proof chamber having side walls, an inlet for receiving hot gas and a first outlet for exhausting hot gas;
- a rotatable drum for containing waste matter to be processed, said drum having gaps therein and being located within the heat proof chamber and separated therefrom around its edge by a gap;
- a means for rotating the drum at a speed such that, in use, waste matter that is heat softened is centrifugally separated from the remainder of the waste matter and passes through the gaps in the drum;
- and
- conduit means for passing at least some of said syngas through said waste processing apparatus to, in use, heat said waste matter therein.
Dependencies are inferred from the claim text.