Investigation of sticking mechanisms during reduction of iron ore/coal mixtures in a fluidised bed reactor

Ziel

The new processes aimed at producing liquid metal directly from iron ores and coal generally involve a first step of pre-reduction in a fluidized bed reactor. It is well known that, during their reduction in a fluidized bed, iron oxides may undergo solid-state sticking phenomena that are especially detrimental to the operation and performance of the reactor. In general, the higher the temperature the more severe these phenomena. This requires operations to be effected at moderate temperature levels (around 600°C) that are not compatible with the industrial objectives of achieving high reaction kinetics and high levels of reduction. The present research is aimed at describing and understanding the physico-chemical phenomena that will allow the sticking of iron oxides during their reduction in a fluidized bed, in the presence of coal, to be controlled effectively.

Programm/Programme

ECSC-STEELRES 8C - Medium-term guidelines (ECSC) for the programmes of technical steel research and of steel pilot/demonstration projects, 1991-1995

Thema/Themen

B - Reduction of iron ores

Aufforderung zur Vorschlagseinreichung

Data not available

Finanzierungsplan

CSC - Cost-sharing contracts

Koordinator

INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANÇAISE

EU-Beitrag

Keine Daten

Adresse

Voie Romaine - BP 320
57214 MAIZIERES-LES-METZ CEDEX
Frankreich

Gesamtkosten