Rapid Pitting Corrosion on Gas Scrubber^*: Salt Accumulations Cause Attack Noticeable in only 3 Weeks

Rapid pitting attack on stainless steel gas scrubber is described. Attack was evident in only three weeks of operation from salt accumulation on areas not washed down by water showers. Describes internal equipment and flow process of gas through scrubber. Discusses investigation for cause of corrosion and exposure tests of materials to determine suitable construction materials to solve corrosion problem. Lists materials tested. Also describes corrosive attack on internal braces. Conclusion gives five design factors that should be realized for scrubber fabrication. 3.2.2