TY - JOUR
T1 - Kinetics of the reaction of H2O gas with liquid iron
AU - Nagasaka, T.
AU - Fruehan, R. J.
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 1994/4
Y1 - 1994/4
N2 - The rate of the decarburization of carbon-saturated liquid iron by H20 gas between 1673 and 1873 K has been studied under conditions in which the effect of mass transfer is negligible, or a reasonable correction for its effect can be made. The rate was measured for water vapor pressures in the range 0.002 to 0.3 atm and sulfur contents in the metal from 0.005 to 0.5 mass of H20 on the surface. Sulfur was found to significantly decrease the rate, and the residual rate phenomenon was observed at high sulfur content. The rate constant for the dissociation of H20 on liquid iron is given by {Mathematical expression} where k°, k r, K s, and a s are the rate constant for pure iron, residual rate constant, the adsorption coefficient of sulfur, and the activity of sulfur in the metal relative to 1 mass pct in carbonsaturated liquid iron, respectively. The rate constants and adsorption coefficient were determined to be {Mathematical expression}
AB - The rate of the decarburization of carbon-saturated liquid iron by H20 gas between 1673 and 1873 K has been studied under conditions in which the effect of mass transfer is negligible, or a reasonable correction for its effect can be made. The rate was measured for water vapor pressures in the range 0.002 to 0.3 atm and sulfur contents in the metal from 0.005 to 0.5 mass of H20 on the surface. Sulfur was found to significantly decrease the rate, and the residual rate phenomenon was observed at high sulfur content. The rate constant for the dissociation of H20 on liquid iron is given by {Mathematical expression} where k°, k r, K s, and a s are the rate constant for pure iron, residual rate constant, the adsorption coefficient of sulfur, and the activity of sulfur in the metal relative to 1 mass pct in carbonsaturated liquid iron, respectively. The rate constants and adsorption coefficient were determined to be {Mathematical expression}
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U2 - 10.1007/BF02665207
DO - 10.1007/BF02665207
M3 - Article
AN - SCOPUS:51649134081
VL - 25
SP - 245
EP - 253
JO - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
JF - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
SN - 1073-5615
IS - 2
ER -