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针对脱硫醇装置尾气管线的湿硫化氢腐蚀问题 ,提出了用氮气吹扫管线等有效措施 ,特别指出选用0Cr17Ni7Mo2不锈钢是最有效的办法 ,其腐蚀率为 0 .0 7mm/a。
Aiming at the problem of wet hydrogen sulfide corrosion in the off-gas pipeline of sweetening unit, the author puts forward some effective measures such as purging pipeline with nitrogen gas, especially selecting 0Cr17Ni7Mo2 stainless steel as the most effective method. The corrosion rate is 0. 0 7mm / a.