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Approach for Minimizing Operating Blast Furnace Carbon Rate Using Carbon-Direct Reduction (C-DRR) Diagram

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Abstract

An approach for reducing input carbon rate of a blast furnace using carbon-direct reduction (C-DRR) diagram has been developed. The role of shaft efficiency, blast input conditions, and heat loss rate in reducing the carbon rate has been brought out. A two-zone thermochemical model has been used to develop C-DRR diagrams for analyzing operating data of a furnace as well as predicting conditions for reducing its carbon rate. The model can be integrated with the control system of a blast furnace for driving an operating furnace to reduce carbon rates.

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The authors acknowledge the computational assistance provided by Rajeev Kumar, a graduate student at the Indian Institute of Technology, Kharagpur in the preparation of the final manuscript.

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Authors and Affiliations

  1. Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Kharagpur, 721302, India

    Soumavo Paul (Graduate Student), S. K. Roy (Professor) & P. K. Sen (Professor)

Authors
  1. Soumavo Paul
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  2. S. K. Roy
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  3. P. K. Sen
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Corresponding author

Correspondence to P. K. Sen.

Additional information

Manuscript submitted July 6, 2012.

Appendices

Appendix I.A: Raw Material Analysis

Table I.A.1 Iron Ore, Sinter and Coke Composition
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Appendix I.B: Hot Metal analysis

Table I.B.1 Hot Metal Composition
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Appendix I.C: Coal composition

Table I.C.1 Ultimate Analysis of Coal (on Dry Mineral Matter Free Basis)
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Table I.C.2 Proximate Analysis of Coal
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Table I.C.3 Ash Analysis of Coal
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Paul, S., Roy, S.K. & Sen, P.K. Approach for Minimizing Operating Blast Furnace Carbon Rate Using Carbon-Direct Reduction (C-DRR) Diagram. Metall Mater Trans B 44, 20–27 (2013). https://doi.org/10.1007/s11663-012-9776-6

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  • DOI: https://doi.org/10.1007/s11663-012-9776-6

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