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Alternative reducing agents in metallurgical processes: gasification of shredder residue material
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering. Department of Minerals Technology and ProcessingCentral Metallurgical Research and Development Institute (CMRDI)Helwan, CairoEgypt.
Department of Minerals Technology and Processing, Central Metallurgical Research and Development Institute (CMRDI), Helwan, Cairo, .
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering.
2017 (English)In: Journal of Sustainable metallurgy, ISSN 2199-3823, Vol. 3, no 2, 336-349 p.Article in journal (Refereed) Published
Abstract [en]

Shredder residue material (SRM) contains plastic material, which has a potential to replace metallurgical coal for reduction during bath-smelting processes. Among the important parameters affecting its implementation are the gasification and the reactivity of char. Therefore, prior to considering its application in metallurgical processes, the gasification characteristics of the produced char need to be studied. Although the char produced from SRM contains lower fixed carbon compared with coal char, it has a porous structure and high surface area, which makes it highly reactive during gasification experiments. In addition to physiochemical properties, the catalytic effect of ash content of SRM char is attributed to its higher reactivity and lower activation energy compared with coal char. Furthermore, the effect of devolatilization heating rate on the gasification characteristics of produced char is investigated. It was found that the devolatilization heating rate during char production has a considerable effect on morphological properties of the char product. Moreover, the gasification reactivity of char produced at a fast devolatilization heating rate was the highest, due to the less crystalline structure of the produced char. 

Place, publisher, year, edition, pages
2017. Vol. 3, no 2, 336-349 p.
National Category
Metallurgy and Metallic Materials
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-60057DOI: 10.1007/s40831-016-0096-yOAI: oai:DiVA.org:ltu-60057DiVA: diva2:1043709
Note

Validerad; 2017; Nivå 2; 2017-05-12 (andbra)

Available from: 2016-10-31 Created: 2016-10-31 Last updated: 2017-05-12Bibliographically approved

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