Community Research and Development Information Service - CORDIS

Abstract

Final report on Contract NO 7210-PR/069, 1 July 1998 to 30 June 2001.

The overall objective of this research project was to minimize pollutant emissions, especially dust, SOx, NOx, and PCDD/F, without expensive end-of-pipe cleaning of the waste gases.

Corus studied the possible reduction of NOx emission by injecting carbon monoxide or steam into the sintering gas (EOS configuration). Sinter pot trials were carried out, and a mathematical model of the NOx formation during the sintering process was developed.

At CRM, the destruction of PCDD/Fs present in fumes recycled at 850°C was studied experimentally. The sulphur behaviour during sintering was investigated by carrying out sinter pot trials aiming at determining the effect of input parameters on the sulphur partition between fumes and sinter, and also on the shape of the SOx emission peak.

IRSID studied the influence of solid fuels on both metallurgical results and pollutant emissions by carrying out sinter pot trials with measurements on fumes (NOx, SOx, VOCs, dust) and chemical analyses (S, Cl, Na, K etc.) on solids (sinter, return fines, dust). Tests with third-field ESP dusts in the sinter mix were carried out to assess their impact on dust emissions and alkali and chlorine balances.

RWTH Aachen developed a thermodynamic model of the PCDD/Fs formation during sintering, combined with a CFD model of the whole sintering process. Three possible pathways pf the PCDD/F formation in the sinter plants were found. Three methods to reduce or suppress the PCDD/F formation in the sinter plants are discussed.

Additional information

Authors: MARLIERE M, IRSID, Maizieres-les-Metz (FR);VANDERHEYDEN B, CRM, Liège (BE);MARLIÈRE M, IRSID, Maizières-lès-Metz (FR);ZWAAN F, Corus NL, IJmuiden (NL);NEUSCHÜTZ D, RWTH, Aachen (DE)
Bibliographic Reference: EUR 20373 EN (2002), pp.151. Euro: 23.50
Availability: EUR-OP reference: KI-NA-20373-EN-S Available from EUR-OP sales agents. URL: http://eur-op.eu
ISBN: ISBN: 92-894-3934-3
Record Number: 200215268 / Last updated on: 2002-10-15
Category: PUBLICATION
Original language: en
Available languages: en