2015
DOI: 10.1007/s11663-015-0345-7
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Abstract: A novel ironmaking process is under development at the University of Utah to produce iron directly from iron oxides concentrates by the gas-solid flash reaction using gaseous fuels and reductants. This process will reduce energy consumption and minimize carbon dioxide emissions. Having investigated the hydrogen reduction kinetics of magnetite and hematite concentrate particles relevant to the novel flash ironmaking process, the carbon monoxide reduction kinetics of hematite concentrate particles (average parti… Show more

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Cited by 76 publications
(73 citation statements)
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“…As an integral part of the development of this novel process, Sohn and coworkers [1,22,23] have determined detailed kinetics of the gaseous reduction of magnetite concentrate particles, aimed at generating a database to be used for the design of a flash ironmaking reactor; before their work, there had been little research reported on this subject under the conditions of the FIT.…”
Section: Reduction Kineticsmentioning
confidence: 99%
See 2 more Smart Citations
“…As an integral part of the development of this novel process, Sohn and coworkers [1,22,23] have determined detailed kinetics of the gaseous reduction of magnetite concentrate particles, aimed at generating a database to be used for the design of a flash ironmaking reactor; before their work, there had been little research reported on this subject under the conditions of the FIT.…”
Section: Reduction Kineticsmentioning
confidence: 99%
“…Sohn et al [1,20,22,23] measured the kinetics of the reduction of magnetite or hematite concentrate particles by hydrogen or carbon monoxide in the temperature range of 1423-1673 K (1150-1400°C). They obtained the following rate expression for the hydrogen reduction of magnetite concentrate particle in the temperature range of 1423-1623 K (1150-1350°C) given by: ÀLnð1 À XÞ ¼ 1:…”
Section: Reduction Kineticsmentioning
confidence: 99%
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“…The activation energy for the reduction reaction was 214 kJ mol −1 . In the same temperature range, they also studied the reduction of hematite concentrate by carbon monoxide and determined that the reduction kinetics followed the same model with the same Avrami parameter and CO partial pressure dependence. The activation energy for the reduction by carbon monoxide was 231 kJ mol −1 .…”
Section: Introductionmentioning
confidence: 99%
“…A novel flash ironmaking process is under development at the University of Utah [1][2][3][4][5][6][7][8][9][10][11][12][13] where hydrogen, natural gas, or coal gas is used as the reductant and fuel in a gas-solid flash reactor. A novel flash ironmaking process is under development at the University of Utah [1][2][3][4][5][6][7][8][9][10][11][12][13] where hydrogen, natural gas, or coal gas is used as the reductant and fuel in a gas-solid flash reactor.…”
Section: Introductionmentioning
confidence: 99%