Vacuum pyrolysis of automobile shredder residues

Authors
Citation
C. Roy et A. Chaala, Vacuum pyrolysis of automobile shredder residues, RESOUR CON, 32(1), 2001, pp. 1-27
Citations number
31
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Environment/Ecology,"Environmental Engineering & Energy
Journal title
RESOURCES CONSERVATION AND RECYCLING
ISSN journal
0921-3449 → ACNP
Volume
32
Issue
1
Year of publication
2001
Pages
1 - 27
Database
ISI
SICI code
0921-3449(200105)32:1<1:VPOASR>2.0.ZU;2-U
Abstract
A research program was undertaken to evaluate the overall performance of a vacuum pyrolysis process applied to the treatment of Automobile Shredder Re sidues (ASR). North American and European ASR samples were tested. Vacuum p yrolysis experiments were carried out in the temperature range of 496-536 d egreesC and a total pressure of approx. 1-5 kPa. Pyrolysis product yields a veraged 52.5 wt.% solid residue, 27.7 wt.%, organic liquids, 13.3 wt.% pyro lytic water and 6.6 wt.% pyrolysis gas. Composition of ASR feedstocks and p yrolysis products has been thoroughly characterized, After pyrolysis, ASR v olume and weight were reduced 5 x and 1.8 x respectively. It was possible t o readily recover 14 wt.% of useful metals remaining in the solid residues; the material left over can be safely landfilled. Pyrolytic gas and oil can be used as heating Fuels. The heavy fraction of the oil ( > 400 degreesC) can be added to road bitumens in order to improve their performance. The to tal oil also represents a challenging matrix for various purposes, The vacu um pyrolysis technology can be seen as an alternative to landfill and incin eration. (C) 2001 Elsevier Science B.V. All rights reserved.