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Metal catalyzed formation of chlorinated aromatic compounds: a study of the correlation pattern in incinerator fly ash.
University of Kalmar, School of Pure and Applied Natural Sciences.ORCID iD: 0000-0001-9382-9296
Bergström & Öhrström.
Bergström & Öhrström.
2007 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 67, no 9, p. S185-S190Article in journal (Refereed) Published
Abstract [en]

Chlorinated aromatics are unintentionally formed and released from combustion and other thermal processes involving organic matter and chlorine. The catalytic activity of incinerator fly ash in the low-temperature formation of chlorinated aromatics has been demonstrated in both laboratory experiments and full-scale trials. Copper has been shown to be an effective catalyst, but several other transition metals possess a similar activity. Here results are reported from a series of full-scale combustion trials with different fractions of household and industrial wastes, with waste from forestry as a reference fuel. The composition of elements and chlorinated aromatics in the fly ash was evaluated with principal component analysis and partial least squares regression. The observed correlation pattern indicates that metals other than copper are of equal importance for the catalytic activity. Chromium and nickel are two of these metals, which may contribute to the de novo formation of chlorinated benzenes, phenols, PCDD and PCDF.

Place, publisher, year, edition, pages
Oxford: Pergamon Press , 2007. Vol. 67, no 9, p. S185-S190
Keyword [en]
Catalysis, Chlorobenzenes, Chlorophenols, Dioxins, Chromium, Fly ash
National Category
Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:hik:diva-1485DOI: 10.1016/j.chemosphere.2006.05.098PubMedID: 17204302OAI: oai:DiVA.org:hik-1485DiVA, id: diva2:213754
Available from: 2009-04-28 Created: 2009-04-28 Last updated: 2017-12-13Bibliographically approved

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Öberg, Tomas

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CiteExportLink to record
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  • Other locale
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