What is the reason for the presence of chlorine in coked benzene?
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Recent tests have shown the presence of chlorine in benzene; where could it possibly have come from?
Check what the water content of the cleaning oil is The most likely scenarios are either leakage from the oil cooler, allowing circulating water to enter, or leakage from the final cooling tower, allowing circulating water to get into the gas stream; after all, it is the circulating water that contains the highest levels of chloride ions.