Problems with the ethylene caustic scrubber tower
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What are the effects of a high pH value in the water washing section of the alkali scrubber tower?
Excessively high pH levels can cause NaOH to crystallize at low temperatures in the cooler following the alkali washing tower, thereby blocking the pipelines; it also causes corrosion to those pipelines
This post was last edited by BBS787 on 2022-7-13 at 23:33. An excessively high pH in the alkali washing section can cause corrosion in subsequent pipelines, poisoning of the desiccant in the dryer, and crystallization blockages in the material outlet cooler, thereby reducing heat exchange efficiency. The reasons, in my opinion, are as follows: 1. A decrease in acidic gases in the incoming material results in an excess of sodium hydroxide in the alkali section; 2. Or there have been changes in the amount and concentration of fresh alkali added. 3. The circulation volume for water washing is insufficient. This is just my humble opinion; I hope experts can correct me