High-Temperature Sulfidation of Crofer 22APU in Atmospheres Containing H2S and H2O

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The work presents analyses of Crofer 22APU steel oxidation in hydrogen atmosphere containing 300 ppm H2S and in hydrogen atmosphere containing 300 ppm and 1% H2O. The oxidation process was conducted on two kinds of samples: pre-oxidized (pre-oxidation process was carried out in the air at a temperature of 800°C during 100 h), and not pre-oxidized at a temperature of 600 and 800°C using periodic method during 500 h. It was established that oxidation rate may be described by means of parabolic law. Determined parabolic rate constants indicate that not pre-oxidized samples undergo sulphurization in H2/300ppm H2S atmosphere, while in H2/300ppm H2S + 1%H2O atmosphere they undergo oxidation 3-4 orders of magnitude slower.

Info:

Periodical:

Advanced Materials Research (Volumes 347-353)

Edited by:

Weiguo Pan, Jianxing Ren and Yongguang Li

Pages:

3321-3324

DOI:

10.4028/www.scientific.net/AMR.347-353.3321

Citation:

Z. Żurek et al., "High-Temperature Sulfidation of Crofer 22APU in Atmospheres Containing H2S and H2O", Advanced Materials Research, Vols. 347-353, pp. 3321-3324, 2012

Online since:

October 2011

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$35.00

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