Kinetics of Gas Phase Oxygen Control System and Oxygen Concentration Measurement in Liquid Pb and LBE

Sung Ho Lee; Tae Yung Song

Journal of Industrial and Engineering Chemistry, Vol.13, No.4, 602-607, July, 2007

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Kinetics of Gas Phase Oxygen Control System and Oxygen Concentration Measurement in Liquid Pb and LBE

Sung Ho Lee^†, and Tae Yung Song

Korea Atomic Energy Research Institute, Daejeon 305-600, Korea

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Liquid lead (Pb) and lead-bismuth eutectic (LBE) are very corrosive to the structural materials at high temperature. This corrosion problem can be prevented by the formation of a protective oxide layer on the surface of a steel by an active control of the oxygen concentration. In recent studies, the necessity of control and measurement of the oxygen concentration in the liquid metal in order to safely operate a liquid Pb and LBE system has been shown. The dynamic behaviour of the gas phase oxygen control system (OCS) is investigated with the theoretical equations describing the thermodynamic and kinetic behaviour of such a system. For a measurement of the oxygen concentration in a liquid LBE, we chose the Yttria Stabilized Zirconia (YSZ) oxygen sensor with a Bi/Bi2O3 reference electrode, and calibration tests in a liquid LBE were performed. The oxygen concentration dissolved in liquid LBE can be determined by the electromagnetic force (EMF) of the YSZ oxygen sensor caused by the oxygen concentration difference across a solid electrolyte.

Keywords:diffusion;kinetics;YZS sensor;oxygen control and measurement;liquid Pb;LBE

[References]

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Li N, J. Nucl. Mater., 300, 73 (2002)
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Borgstedt HU, Mathews CK, Applied Chemistry of the Liquid Alkali Metals, Plenum Press, New York (1987)
Lee JY, Tak YS, J. Ind. Eng. Chem., 5(2), 139 (1999)
Samson GV, The oxide Handbook, 2nd Ed., IFI/Plenum, New York (1982)

[Referenced By]

[1] Ito K, Sakai T, J. Nucl. Sci. Technol., March, 41, 252 (2004)

[2] Mller G, Schumacher G, Zimmermann F, J. Nucl. Mater., 278, 85 (2000)

[3] Li N, J. Nucl. Mater., 300, 73 (2002)

[4] Zhang J, Li N, J. Nucl. Mater., 321, 184 (2003)

[5] Kim HT, Park CH, Kim J, Kang MS, J. Ind. Eng. Chem., 3, 55 (1997)

[6] Fraden J, Handbook of Modern Sensors, 2nd Ed.: Physics, Designs, and Applications. Woodbury, NY: American Institute Physics Press (1997)

[7] He X, Li N, Mineev M, J. Nucl. Mater., 297, 214 (2001)

[8] Fernandez JA, Abella J, Barcelo J, Victori L, J. Nucl. Mater., 301, 47 (2002)

[9] Konys J, Muscher H, Vob Z, Wedemeyer O, J. Nucl. Mater., 296, 289 (2001)

[10] Mulla IS, Ramgir NS, Hwang YK, Chang JS, J. Ind. Eng. Chem., 10(7), 1242 (2004)

[11] Jost W, Diffusion in Solids, Liquids, Gases, 6th Ed., Academic, New York (1970)

[12] Lefhalm CH, Knebel JU, Mack KJ, J. Nucl. Mater., 296, 301 (2001)

[13] Wike CR, Chang P, AIChE J., 1, 264 (1955)

[14] Borgstedt HU, Mathews CK, Applied Chemistry of the Liquid Alkali Metals, Plenum Press, New York (1987)

[15] Lee JY, Tak YS, J. Ind. Eng. Chem., 5(2), 139 (1999)

[16] Samson GV, The oxide Handbook, 2nd Ed., IFI/Plenum, New York (1982)