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A Fe-C-Ca big cycle in modern carbon-intensive industries: toward emission reduction and resource utilization
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
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2016 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 6, 22323Article in journal (Refereed) PublishedText
Abstract [en]

Herein a big Fe-C-Ca cycle, clarifying the basic element flows and energy flows in modern carbon-intensive industries including the metallurgical industry and the cement industry, was proposed for the first time in the contexts of emission reduction and iron ore degradation nowadays. This big cycle was focused on three industrial elements of Fe, C and Ca and thus it mainly comprised three interdependent loops, i.e., a C-cycle, a Fe-cycle and a Ca-path. As exemplified, we started from the integrated disposal of hot steel slags, a man-made iron resource via char gasification and the employment of hematite, a natural iron resource greatly extended the application area of this idea. Accordingly, based on this concept, the theoretical potentials for energy saving, emission reduction and Fe resource recovery achieved in modern industry are estimated up to 7.66 Mt of standard coal, 63.9 Mt of CO2 and 25.2 Mt of pig iron, respectively.

Place, publisher, year, edition, pages
Nature Publishing Group, 2016. Vol. 6, 22323
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Engineering and Technology
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URN: urn:nbn:se:kth:diva-184035DOI: 10.1038/srep22323ISI: 000371024300004PubMedID: 26923104OAI: oai:DiVA.org:kth-184035DiVA: diva2:914441
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QC 20160324

Available from: 2016-03-24 Created: 2016-03-22 Last updated: 2016-03-24Bibliographically approved

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Seetharaman, Seshadri
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