Combustion Synthesis Ironmaking: Investigation on Required Carbon Amount in Raw Material from the Viewpoint of Adiabatic Flame Temperature Calculation

Keisuke Abe; Ade Kurniawan; Masafumi Sanada; Takahiro Nomura; Tomohiro Akiyama

doi:10.22146/ijc.38359

Combustion Synthesis Ironmaking: Investigation on Required Carbon Amount in Raw Material from the Viewpoint of Adiabatic Flame Temperature Calculation

https://doi.org/10.22146/ijc.38359

Keisuke Abe^(1*), Ade Kurniawan⁽²⁾, Masafumi Sanada⁽³⁾, Takahiro Nomura⁽⁴⁾, Tomohiro Akiyama⁽⁵⁾

(1) Center for Advanced Research of Energy and Materials, Hokkaido University, Kita 13 Nishi 8, Kita-Ku, Sapporo, 060-8628 Japan
(2) Graduate School of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-Ku, Sapporo, 060-8628 Japan
(3) Graduate School of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-Ku, Sapporo, 060-8628 Japan
(4) Center for Advanced Research of Energy and Materials, Hokkaido University, Kita 13 Nishi 8, Kita-Ku, Sapporo, 060-8628 Japan
(5) Center for Advanced Research of Energy and Materials, Hokkaido University, Kita 13 Nishi 8, Kita-Ku, Sapporo, 060-8628 Japan
(*) Corresponding Author

Abstract

Combustion synthesis (CS) is a simple and very fast method to synthesize a target material. New ironmaking method via the CS using carbon-infiltrated iron ore was proposed, and the possible conditions for the method were investigated. Adiabatic flame temperatures (Tad) of the CS reaction, maximum reachable temperatures in an adiabatic system, were calculated to estimate the sample temperature during the CS. To reach the adiabatic temperature of 1811 K, 23.9, 27.9, and 29.3 wt.%-C were required for Fe₂O₃, Fe₃O₄, and FeO, respectively. When the carbon amount is higher than the calculated one, molten iron which is separated from slag components should be obtained via the CS.

Keywords

combustion synthesis; ironmaking; goethite; adiabatic flame temperature; calculation

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DOI: https://doi.org/10.22146/ijc.38359