Reasons for the high COD level in the circulating water of aromatic compound complexes
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What are the main factors causing the high COD level in the circulating water of aromatic compound plants (whose main products are benzene, toluene, o-xylene, and p-xylene)?
A high chlorine content in the circulating water causes corrosion and penetration of the cooler pipelines in the process system, allowing materials to enter the circulating water.
A high chlorine content in the circulating water causes corrosion and penetration of the cooler pipelines in the process system; materials end up in the circulating water. The analysis is good
Inspecting heat exchangers where the pressure on the material side is higher than the pressure of the circulating water will reveal the problem