| Abstract |
| Desulfurization behavior of hot metal was studied by bubbling Ar+CH₄mixture gas through submerged lance. The effects of melt temperature, CH₄partial pressure and gas flow rate on the desulfurization rate of hot metal are discussed. Desulfurization rate was increased by increasing temperature and partial pressure of CH₄. Desulfurization rate of hot metal was described by mixed control of the mass transfer of H₂ gas and [S] through gas and liquid film around the rising gas bubbles and chemical reaction at the interface. It was concluded that the desulfurization of hot metal by Ar+CH₄mixture gas bubbling is controlled by chemical reaction of H₂ gas and [S] at the gas bubble and liquid interface under the present experimental conditions. (Received February 2, 2004) |
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| Key Words |
| Desulfurization, Methane, Hot metal, Bubbling, Chemical reaction, Kinetics, Mass transfer |
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