The levels of raw material salt, chlorine, and water in the atmospheric and vacuum distillation unit suddenly exceeded the specified limits
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From last night until now, things were normal until suddenly the levels of salt, chlorine, and water in the feedstock for the vacuum distillation unit exceeded the allowed limits: the water content rose from 0.1% to 2.3%, while the chlorine level increased sharply from less than 5 to 25. It’s absolutely unbelievable. The key is that the cause has not yet been found. I’m speechless. I’m asking if any experts have encountered similar problems!
If there are no changes in the operation, then check the raw materials first!
Is it crude oil before treatment or after treatment? This needs to be made clear.