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Quantification of polybrominated diphenylethers in oil produced by pyrolysis of flame retarded plastic

Hall, W.J. and Williams, P.T. (2008) Quantification of polybrominated diphenylethers in oil produced by pyrolysis of flame retarded plastic. Journal of the Energy Institute, 81 (3). pp. 158-163. ISSN 0144-2600

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In recent years, there has been extensive research into using pyrolysis to convert toxic brominated plastics into safe, bromine free fuels. However, there has been little investigation of the polybrominated diphenyl ethers (PBDE) that are present in the pyrolysis oils. PBDEs are brominated flame retardants that are extremely toxic and are difficult to analyse owing to the existence of 209 different congeners. In this work, the authors have investigated the PBDEs present in the pyrolysis oil of high impact polystyrene which contained decabromodiphenyl ether as a flame retardant. The plastic was pyrolysed in a fluidised bed reactor and the resulting oil was subjected to a rigorous clean-up procedure to remove interfering compounds before the PBDEs were quantified using gas chromatography–mass spectrometry. It was found that the most prominent PBDEs in the oil were 3-monoBDE, 4-monoBDE, 3,49-diBDE, 3,39,4-triBDE and 2,29,4,49,5,69-hexaBDE. The lesser brominated PBDEs were more prevalent than the more heavily brominated PBDEs.

Item Type: Article
Copyright, Publisher and Additional Information: © 2008 Energy Institute. Published by Maney on behalf of the Institute. Uploaded in accordance with the publisher's self-archiving policy.
Keywords: Pyrolysis, Bromine, Plastics, Flame retardants, PBDE
Institution: The University of Leeds
Academic Units: The University of Leeds > Faculty of Engineering (Leeds) > School of Chemical & Process Engineering (Leeds) > Energy Research Institute (Leeds)
Depositing User: Dr William Hall
Date Deposited: 03 Dec 2008 18:46
Last Modified: 12 Jun 2014 14:54
Published Version: http://www.ingentaconnect.com/content/maney/eni/20...
Status: Published
Publisher: Maney
Refereed: Yes
Identification Number: 10.1179/174602208X330257
URI: http://eprints.whiterose.ac.uk/id/eprint/4969

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