Corrosion protection and energy saving in atmospheric and vacuum distillation units
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The data indicates that the three-phase corrosion at the top of the tower is caused by H2O, H2S, and HCl. Does mechanical vacuuming mean that there is no more water present, and as a result, will the corrosion be reduced? ? ? After mechanical vacuum extraction is applied at the top of the pressure reduction tower in our unit, is it still necessary to implement the three-injection anti-corrosion measure? ? ?
If your pressure relief system is purely dry-type and the tower has good sealing, with no leaks in the top cooler, then there will not be a large amount of water present. Generally, anti-corrosion measures such as three injections are required to prevent corrosion at low temperatures.
Reply to 2# Under the Windy and Rainy Platanus: Is there low-temperature corrosion in the absence of water? Our pressure relief tower is dry-type, assuming there are no leaks in the top condenser.