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Model for reduction of iron oxide pellet with a C-O-H-N gas mixture considering water gas shift equilibrium in the gas while it diffuses through the product layer
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Department of Metallurgical Engineering, Indian Institute of Technology, Bombay.
2012 (English)In: XXVI International Mineral Processing Congress: IMPC 2012, New Delhi, India, September 24-28, 2012 : conference proceedings, New Delhi: The Indian Institute of Metals , 2012, Vol. 2, 3921-3928 p.Conference paper, Meeting abstract (Refereed)
Abstract [en]

In metallurgical processes, a higher usage of hydrocarbons is encouraged to bring down carbon emissions. In this regard, numerous investigations on reduction of oxides by C-O-H-N gas mixture have been reported. Attempts to simulate these reduction processes using shrinking core model, one of the common models used for such studies, have under predicted the reduction rates. This is perhaps owing to the fact that the homogeneous reaction in the gas phase is not being considered. If the reaction temperatures are above 1000K, which is generally so for many reduction processes, the homogeneous gas reaction rates are expected to be so high that one can assume local equilibrium in the gas phase. In the present study, reduction of wustite in a C-O-H-N gas mixture has been modeled using a shrinking core model considering the water gas shift equilibrium in the gas while it diffuses through the product layer.

Place, publisher, year, edition, pages
New Delhi: The Indian Institute of Metals , 2012. Vol. 2, 3921-3928 p.
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-39910Local ID: ed48ad30-2f08-4093-8ffe-9da38ae048e3ISBN: 9788190171434OAI: oai:DiVA.org:ltu-39910DiVA: diva2:1013429
Conference
International Mineral Processing Congress : 24/09/2012 - 28/09/2012
Note
Godkänd; 2012; 20120608 (andbra)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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Nurni, Viswanathan
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