Characterisation of rotary kiln residues from the pyrolysis of shredder wastes. Osric Tening Forton Marie K. Harder Norman R. Moles. Waste & Energy Research Group. Faculty of Science and Engineering. University of Brighton, UK. Presentation Outline.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Characterisation of rotary kiln residues from the pyrolysis of shredder wastes
Osric Tening Forton
Marie K. Harder
Norman R. Moles
Waste & Energy Research Group. Faculty of Science and Engineering. University of Brighton, UK
Waste characteristics & recovery options
MIDDLES (15 – 130mm)
Characterise of solid residues from the pyrolysis of ASR & SR
Presence of residual metals and contaminants -
Cu, Zn and Fe – potential for further recovery from residues?
Pb – major contaminant and limiting factor for reuse options
Evaluate/Use the performance of a mechanical roll crushing process to fractionate metals for recovery and disposal
Flue Gas Exhaust
Gas fired furnace
and Bag Filters
Char and metals
Experimental Design & feed characteristics
Kiln type – MRP Rotary Kiln Unit
Screening & sieving
Screening & sieving
-Average Carbon Content (LOI @ 550oC)
- ASR – 17%
- SR – 23%
-largest proportion of residues in
-changes in aspect ratio
Pyrolysis is useful in the characterisation of shredder wastes
Pyrolysis (commercial) is useful for material recovery towards ELV Directive targets
Inerts contain useful metals (Cu, Zn, Fe) and contaminants (Pb)
Lead levels in SR residues are ~double ASR residues
Implications for sustainable waste management?
Implications for automotive industry?
Mechanical roll crushing and separation concentrates metals and contaminants into some fractions.
leaves most of the inerts less contaminated – reusable?
Pb concentration for re use or disposal
Possible Fe, Zn and Cu recovery for secondary markets
Value from shredder wastes pyrolytic solid residues
Suitable markets with product specifications must be identified
Collation of larger datasets for more rigorous statistical analyses