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VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 14b
SUMMARY:Research on the production of bio-coke for the smelting of manganese ferroalloys in submerged arc furnaces (SAF)
DESCRIPTION:The carbothermal reduction process is used to produce manganese ferroalloys. One way to reduce CO2 emissions from the process in which coke is used would be to replace fossil carbon with renewable biomass carbon, which is considered to be carbon neutral. One of possibilities is to use bio-coke as a substitute for typical coke made of only fossil coking coal. Bio-coke can be manufactured on the basis of coking coal with the addition of materials of biomass origin. Blends for the production of bio-coke should have acceptable cokemaking properties to allow to produce bio-coke of appropriate quality. The paper presents the results of the on-going research project on the influence of the addition (up to 20%) of bio-materials of different origins to the coal blend on its cokemaking properties, i.e., Gieseler Fluidity, Arnu—Audibert dilatation and caking ability (Roga Index). The bio materials used in the research were raw and thermally processed waste biomass of different origins (forestry: beech and alder woodchips; sawmill: pine sawdust; and the food industry: hazelnut shells and olive kernels) and commercial charcoal. Presented results show that the amount of additive as well as the type of material affect the obtained coking properties. The presentation also contains the results of the quality parameters of bio-coke made on the basis of a coal blend with the addition of up to 20% of thermally processed biomass -  charcoal. The evaluated parameters were: reactivity to CO2 (CRI), CSR post-reaction strength, structure and texture parameters. The presentation will also show the results of earlier research conducted at SINTEF: CO/CO2 reactivity, electrical resistivity and reactivity to MnO (slag-reactivity). Studies have shown that the quality parameters of the bio-coke produced on a large-laboratory scale meet the requirements for the reductant in the process of smelting manganese ferroalloys in submerged arc furnaces. 
CLASS:PUBLIC
DTSTART:20230614T155000
DTEND:20230614T161000
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