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HomeAlternate carbon sources for sintering of iron ore (Acasos)
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In the RFCS project ‘Acasos’, alternative carbon sources, for example olive pits, sunflower husks, blast furnace (BF) dust and sludge, anthracite and pet coke, were analysed, pre-treated and evaluated by sinter pot tests and industrial sinter plant trials. It was found that pre-treatment is essential for the utilisation of alternate carbon sources. The crushing of the evaluated biomass to a particle size smaller than the optimal coke breeze size improved thermal utilisation at sintering, although productivity and quality could not reach the level of carbon breeze. At the industrial scale it was shown that the pelletising of carbon-rich BF dust and sludge led to the increased utilisation of their carbon content without negative effects on productivity. The substitution of coke breeze with 60 % anthracite at the industrial scale led to a slight reduction in sinter productivity. Environmental aspects were considered, especially concerning emissions of SO2 and volatile organic carbon (VOC). SO2 can be a limitation criterion for pet coke, anthracite, and BF dust and sludge if the sulphur/carbon ratio is significantly higher than that of coke breeze. On the other hand, VOC emission is a strong limiting criterion for the utilisation of all kinds of biomass, although biomass Acasos has advantages over SO2 emissions and CO2 balance due to regenerative resources.
- Published:
- Corporate author(s): Directorate-General for Research and Innovation (European Commission)
- Personal author(s): Unland, Elke ; Ventrella, Giuseppe ; Janz, Joachim ; Martinez.Pacebo, Maria ; Fray, Trevor A. T ; Zandi, Mohammad ; Pietruck, Roland ; Schmid, Herbert
- Themes: Industrial research and development , Basic metals industry, steel industry
- Subject: carbon , coke , iron and steel industry , iron ore , production technique , research report , testing
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| ISSN 1831-9424 | ISBN 978-92-79-22676-2 | DOI 10.2777/58105 | Catalogue number KI-NA-25151-EN-N |
- Released on EU publications website:
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