On online water washing of catalytic fractionation towers
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Is it necessary to perform online water washing in the catalytic fractionation tower? It does require washing by water; where are the main areas that need to be washed? What is the configuration of the washing system in your facility? What size water tank should be used, what size pump should be chosen, and what is the head requirement? What type of water should be used for washing? Where are the inlets and outlets for the washing water in a distillation tower? Washing yields the best results; I hope everyone can discuss this
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Is the owner’s company planning to set up an online laundry service? Is there any more information? We have carried out water washing of the distillation tower without shutting it down many times, but we never thought of installing an online water washing system. Is it necessary?
Water washing of the distillation tower usually takes place when salt accumulation occurs in the tower. During this process, cold reflux can be used to inject water into the tower; depending on the location of the salt accumulation, water is discharged from either the top circulation outlet or the light diesel outlet. During water washing, the reaction rate is reduced and the reaction temperature is lowered, all in order to maintain normal operation. The diesel produced may be classified as defective depending on the circumstances. It is important to monitor the temperature carefully to prevent water from reaching the bottom of the tower, as this could affect the operation of the slurry pump.
What was said upstairs is correct: before, we could do it up to 3 times a month, haha, once every 10 days. Think it through first, then do it. There's a problem on one side. The most important thing is to prevent water from reaching the bottom of the tower; if it does, you’ll be in trouble.