Failure analysis on abnormal corrosion of economizer tubes in a waste heat boiler

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• 作者：Qun Ding ; Xiao-Feng Tang ; Zhen-Guo Yang ; ^{zgyang@fudan.edu.cn}
• 关键词：Waste heat boiler ; Economizer ; Dew point corrosion ; Failure analysis
• 刊名：Engineering Failure Analysis
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：73
• 期：Complete
• 页码：129-138
• 全文大小：2144 K
• 卷排序：73

文摘

High content of sulfur was detected in deposits. Sulfuric acid dew point corrosion was proved to be the root cause. Mechanisms were proposed to explain the perforation and distinct morphology on tubes. It was necessary to raise the operation temperature and control sulfur content.