Zairyo-to-Kankyo
Online ISSN : 1881-9664
Print ISSN : 0917-0480
Research Paper
Corrosion Resistance of Materials of Construction for High Temperature Sulfuric Acid Service in Thermochemical IS Process
—Alloy 800, Alloy 600, SUSXM15J1 and SiC—
Nobuyuki TanakaKaoru OnukiSaburo ShimizuAkihisa Yamaguchi
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JOURNALS FREE ACCESS

2006 Volume 55 Issue 7 Pages 320-324

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Abstract

Exposure tests of candidate materials were carried out up to 1000 hr in the sulfuric acid environments of thermochemical hydrogen production IS process, focusing on the corrosion of welded portion and of crevice area. In the gas phase sulfuric acid decomposition condition at 850°C, welded samples of Alloy 800 and of Alloy 600 showed the same good corrosion resistance as the base materials. In the boiling condition of 95 wt% sulfuric acid solution, test sample of SiC showed the same good corrosion resistance. Also negligible corrosion was observed in crevice corrosion.

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© 2006 Japan Society of Corrosion Engineering
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