采用浸泡方法研究了316L不锈钢在烧结烟气有机胺脱硫溶液中的腐蚀行为，主要对pH、温度、Cl-浓度和SO42-浓度变化引起的影响进行了分析。结果表明，316L不锈钢在脱硫溶液中存在点蚀行为，随着溶液pH、温度、SO42-浓度(60～140 g/L)、Cl-浓度(1～10 g/L)因素的变化，均有不同程度的腐蚀; 但当pH<4、温度>80 ℃、ρ(Cl-)>10 g/L时，对316L的腐蚀影响较为明显。
The effect of the pH, temperature, Cl- concentration and SO42- concentration on the corrosion behavior of 316L stainless steel in the sintering flue gas organic amine desulfurization solution were studied using immersion method. The results showed that 316L stainless steel had pitting corrosion behavior in the desulfurization solution, and as the solution pH, temperature, SO42- concentration (60~140 g/L), and Cl- concentration (1~10 g/L) factors changing, different degrees corrosion occured; when pH<4, temperature>80 ℃, ρ(Cl-)>10 g/L, the effect of corrosion on 316L was more obvious.
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