How to prevent the formation of ferrous sulfide naturally during the maintenance of desulfurization towers?
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How to prevent the formation of ferrous sulfide naturally during the maintenance of desulfurization towers? During the maintenance last year, one layer of packing was burned out
1. It is natural for ferrous sulfide to be present in desulfurization towers; chemical cleaning methods can be used to passivate surfaces such as the tray sections first. By contacting the appropriate manufacturers, they will provide you with a professional solution. 2. Even with chemical cleaning methods, it is not possible to completely remove ferrous sulfide from inside the tower, as the cleaning is carried out through reflux cooking rather than full-tower circulation. Therefore, after opening the tower, it is still necessary to inject water; this water helps to carry away the heat generated by the continued oxidation of ferrous sulfide, thereby preventing damage to the equipment. 3. Be careful: air cannot be introduced for displacement until a sufficient amount of water has been injected to moisten all parts of the tower. The scale removed from the trays will ignite on its own, so it is best to rinse the removed material with water to prevent overheating. The above opinions are for reference only.