Zairyo-to-Kankyo
Online ISSN : 1881-9664
Print ISSN : 0917-0480
ISSN-L : 0917-0480
Screening Tests on Materials of Construction for the Thermochemical IS Process
Kaoru OnukiIkuo IokaMasatoshi FutakawaHayato NakajimaSaburo ShimizuIchiro Tayama
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1997 Volume 46 Issue 2 Pages 113-117

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Abstract

Corrosion tests were conducted at two environments in an iodine-sulfur thermochemical water-splitting process. One is 50wt% sulfuric acid solution containing 0.1wt% hydriodic acid at 95°C and 120°C, and the other is gaseous mixture of HI/I2/H2O, the molar ratio of which is 1/1/6, at 200-400°C. In the former environment, Ta, Zr, Quartz glass, and Pb showed corrosion resistance. Although PFA showed corrosion resistance, iodine penetration was observed. In the latter environment, Ti and Hastelloy C-276 showed good corrosion resistance. Inconel 600 and 1Cr-1/2Mo also showed small corrosion rate. However, Inconel 600 suffered grain boundary corrosion.

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© Japan Society of Corrosion Engineering
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