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Discussion on the start-up and shutdown procedures for acid production by wet method?
The control of the start-up and shutdown processes directly affects the operation and lifespan of wet sulfuric acid plants.
Dew point corrosion is most likely to occur at this stage.
The pipes between our WSA converter and the condenser are often corroded
Two points: 1. Heat retention 2. Drum pressure. Once these are taken care of, there will be no problems. Details determine the existence of the WSA device.
The main cause of corrosion is dilute acid; therefore, it is essential to purge and clean the system when shutting it down in order to prevent the formation of dilute acid. During normal operation, proper insulation must be maintained to avoid the formation of dilute acid due to condensation caused by low temperatures
The drum pressure determines the condenser inlet temperature.
Is there anyone who can introduce the operators for acid production by wet method? Those who are interested can contact directly. Phone: 13736170800, Mr. Wang. Email: 276480197@qq.com
What is often overlooked in the initial stage of construction for many systems and devices is insulation; during operation, what is easily neglected is the temperature at the converter outlet, as well as purging and drying when the system is shut down
The condenser inlet pressure is normally around 275