The corrosion mechanism of the tube air preheater in a gas-fired boiler was investigated in this study through analysis of operating conditions, macroscopic examination, chemical composition analysis, metallographic analysis, hardness analysis, and energy spectrum analysis. The findings indicate that the combination of fly ash and sulfur content generated from phenol wastewater mixing can expedite the corrosion process of enamel air preheater pipes. Additionally, the quality of the enamel pipes themselves also plays a significant role in promoting corrosion.
姚书恒，黄时今，曲 毅. 含酚废水掺烧对空预器腐蚀机理分析及处理[J]. 煤炭与化工, 2025, 48(2): 146-150.
Yao Shuheng, Huang Shijin, Qu Yi. Analysis and treatment of corrosion mechanism of air preheater caused by mixing combustion of phenol-containing wastewater. CCI, 2025, 48(2): 146-150.
