Removal of vapour phase PCDD/Fs in electric arc furnace steelmaking emissions by sorption using plastics.

Abstract

Plastics are potentially suitable for the removal of vapour phase PCDD/Fs in emissions from the electric arc furnace (EAF) steelmaking process. Three different commercial plastics, i.e. polypropylene BE170MO (Borealis A/S, Denmark), polypropylene in the form of 5 mm spheres (The Precision Plastic Ball Co. Ltd., UK) and polyethylene LD605BA (ExxonMobil Chemical, Belgium), have been studied using a novel experimental apparatus for the removal of vapour phase PCDD/Fs. Polypropylene BE170MO was identified to be the most suitable product amongst the three plastics in terms of PCDD/F sorption and potential industrial application. The optimum temperature for PCDD/F sorption on polypropylene BE170MO was below 90 degrees C for a removal efficiency of >99% at an average vapour phase PCDD/F concentration of 3.5 ng I-TEQ/Nm(3). At 130 degrees C, 53% of the PCDD/Fs trapped on polypropylene BE170MO were desorbed.

• Authors: Tze Chean Ooi, Bruce C R Ewan, Keith R Cliffe, David R Anderson, Raymond Fisher, Dennis Thompson
• Journal: Chemosphere (Chemosphere) Vol. 73 Issue 1 Suppl Pg. S84-9 (Aug 2008) ISSN: 0045-6535 [Print] England
• PMID: 18439650 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Air Pollutants
• Benzofurans
• Dibenzofurans, Polychlorinated
• Plastics
• Polychlorinated Dibenzodioxins
• Polypropylenes
• Steel

Topics

• Adsorption
• Air Pollutants (chemistry, isolation & purification)
• Benzofurans (chemistry, isolation & purification)
• Dibenzofurans, Polychlorinated
• Electricity
• Plastics (chemistry)
• Polychlorinated Dibenzodioxins (analogs & derivatives, chemistry, isolation & purification)
• Polypropylenes (chemistry)
• Steel
• Surface Properties
• Temperature
• Volatilization