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247. Direct Heating for Analysing Reforming Reaction on Alloy Surface in Low S/C Environment

Author

Ueda, Mitsutoshi, Fujita, Kenjiro, Matsuzaki, Yoshio, and Maruyama, Toshio

Abstract

New apparatus for direct heating of alloy specimen in the gas stream has been developed in order to analyze not only reforming reaction but also carbon deposition on the alloy surface in low S/C environment. A foil of iron can be heated directly to 1073 K by the Joule heat from the specimen. Temperature of the foil can be kept at 1073 plus-minus 10 K by using AC power regulator connected with temperature controller. Temperature of the foil is not influenced by the thermal radiation from the oxide scale during the oxidation. One experiment has been carried out to check carbon deposition on the ferritic alloys at 1073 K in the CH4-H2O gas mixture. Oxidation and carbon deposition simultaneously occur on the alloy surface and no carbon deposition is observed in the chamber. Developed apparatus is suitable for investigation of carbon deposition and carburization of alloys in low S/C environment.

Published
2010

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