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
2013 (English)In: Journal of Chemistry and Chemical Engineering, ISSN 1934-7375, E-ISSN 1934-7383, no 7, 666-670 p.Article in journal (Refereed) Published
In metallurgical processes, more and more usage of hydrocarbons is encouraged to bring down the 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 may be owing to the fact that the homogeneous reaction in the gas phase is not being considered. If the reaction temperatures are above 1,000 K, generally so for many reduction processes, the homogeneous gas reaction rates are expected to be high enough that local equilibrium in the gas phase can be assumed. In the present study, reduction of wustite in a C-O-H-N gas mixture has been modeled using shrinking core model considering the water gas shift equilibrium in the gas while it diffuses through the product layer.
Place, publisher, year, edition, pages
2013. no 7, 666-670 p.
Research subject Process Metallurgy
IdentifiersURN: urn:nbn:se:ltu:diva-3012Local ID: 0c2f6596-fc48-4784-822d-c3a892a96a78OAI: oai:DiVA.org:ltu-3012DiVA: diva2:975867
Godkänd; 2013; 20131203 (ysko)2016-09-292016-09-29Bibliographically approved