Severe corrosion problems occurred in the debutenal tower of a vinyl acetate unit,resulting in frequent abnormal and unplanned shutdowns,which seriously affected the long-term safe and stable operation of the plant.Through the process material analysis and laboratory simulation test,the corrosion mechanism of debutenal tower was studied,the causes of corrosion were ana-lyzed and the anti-corrosion measures were put forward to provide guarantee for the smooth operation of the unit.
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