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Iron production by electrochemical reduction of its oxide for high CO2 mitigation (IERO)
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Iron production by electrochemical reduction of its oxide for high CO2 mitigation (IERO)

Final report

Väljaande metaandmed

IERO project aims at developing a breakthrough technology to produce steel without any direct CO2 emissions. The economic model of this new route shows that the conditions for electrolysis to be the dominant technology of the steel industry in 2035 are a high carbon value of 150€.t-1CO2 and a price ratio of electricity on coal lower than three. Its environmental benefit depends on the availability of low carbon energy resources. The low temperature ULCOWIN technology has been studied at laboratory level. Results indicate that the electrochemical process is very fast, the key parameter to reach high efficiency is the transfer of the particles. Among all the catalysts considered for anode, the cobalt spinel Ni/Co3O4 is the most efficient at high current densities. At pilot level, an ULCOWIN cell version n°2 has been developed with which eighteen experimental tests have been carried out. By process improvement, the cell technology checks most of the initial specifications. Most notably, the deposit can be harvested in situ and thick deposits can be obtained. Upscalability can be considered with the design of a cheap version of the cell called ULCOWIN version N°3 incorporating the knowhow acquired during production campaigns. The high temperature electrolysis route has been studied at laboratory level. Mechanistic studies show that cathodic reaction in salt and slag is limited by transport. All the components of a process have been defined: anode is a substituted spinel, slag is a silicoaluminate fused by addition of magnesia and refractory containment is alumina surrounded with wool.
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ISSN 1831-9424
ISBN 978-92-79-61276-3
DOI 10.2777/084034
Katalooginumber KI-NA-28065-EN-N
ISSN 1018-5593
ISBN 978-92-79-61275-6
DOI 10.2777/130511
Katalooginumber KI-NA-28065-EN-C
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ISSN 1831-9424 ISBN 978-92-79-61276-3 DOI 10.2777/084034 Katalooginumber KI-NA-28065-EN-N
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ISSN 1018-5593 ISBN 978-92-79-61275-6 DOI 10.2777/130511 Katalooginumber KI-NA-28065-EN-C
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