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硫酸回收装置中,E7009塔Ⅱ顶再沸器换热系统受SO2-H2S-H2O腐蚀较为严重。文章探讨了其腐蚀机理,并结合实际提出了一些切实可行的防护措施。
Sulfuric acid recovery unit, E7009 Tower II top reboiler heat exchange system by SO2-H2S-H2O corrosion is more serious. The paper discusses its corrosion mechanism, and puts forward some practical protective measures according to the actual situation.