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Effect of operating conditions and feedstock composition on the properties of manganese oxide or quartz charcoal pellets for the use in ferroalloy industries

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dc.contributor.author Surup, Gerrit Ralf
dc.contributor.author Nielsen, Henrik Kofoed
dc.contributor.author Großarth, Marius
dc.contributor.author Deike, Rüdiger
dc.contributor.author Van den Bulcke, Jan
dc.contributor.author Kibleur, Pierre
dc.contributor.author Müller, Michael
dc.contributor.author Ziegner, Mirko
dc.contributor.author Yazhenskikh, Elena
dc.contributor.author Beloshapkin, Sergey
dc.contributor.author Leahy, James J.
dc.contributor.author Trubetskaya, Anna
dc.date.accessioned 2020-01-03T09:12:55Z
dc.date.issued 2020
dc.identifier.uri http://hdl.handle.net/10344/8342
dc.description peer-reviewed en_US
dc.description The full text of this article will not be available until the embargo expires on the 26/12/2021
dc.description.abstract This study investigates the effect of heat treatment temperature on the properties of charcoal composite pellets used for the reduction of ferroalloys. The heavy fraction of biooil was used as a binder for the charcoal ore pellet preparation. The effect of heat treatment temperature on the pellet shrinkage was related to the degree of reduction which varied with feedstock and ore composition. The results showed that the size and shape of the charcoal pellets were not affected by the biooil devolatilization. Manganese charcoal pellets showed higher electrical resistance during pyrolysis, whereas the structure, composition and electrical resistance of silica composite pellets remained unaffected by heat treatment temperatures < 1650 °C. However, the secondary heat treatment decreased the CO2 gasification reactivity and electrical resistivity of charcoal composite pellets. In addition, the findings of this work demonstrate the potential for using biooil as a binder for the charcoal composite pellets used in ferroalloy industries. The composite pellets are suitable to pre-reduce the manganese ore in the low temperature zones of an industrial furnace, and the charcoal pellets can be used as an alternative bed material. However, the high CO2 reactivity may create challenges during the direct replacement of metallurgical coke with the bio-reductants. en_US
dc.language.iso eng en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Energy;193, 116736
dc.relation.uri https://doi.org/10.1016/j.energy.2019.116736
dc.rights This is the author’s version of a work that was accepted for publication in Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Energy, 2020, 193, 116736, https://doi.org/10.1016/j.energy.2019.116736 en_US
dc.subject charcoal en_US
dc.subject ferroalloys en_US
dc.subject biooil en_US
dc.subject ash en_US
dc.subject pyrolysis en_US
dc.title Effect of operating conditions and feedstock composition on the properties of manganese oxide or quartz charcoal pellets for the use in ferroalloy industries en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1016/j.energy.2019.116736
dc.contributor.sponsor Elkem AS, Saint Gobain Ceramic Materials AS, and Eramet Norway AS en_US
dc.date.embargoEndDate 2021-12-26
dc.embargo.terms 2021-12-26 en_US
dc.rights.accessrights info:eu-repo/semantics/embargoedAccess en_US


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