The gas scrubber tray is corroded and peeled off
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There is a scrubber tower in the company, and the gas composition: Nitrogen, sulfur dioxide, natural gas, water, a small amount of flue gas, found during the inspection: The tray is severely corroded and falling off. The tray material is 30408 and the nozzle material is 31603. Please help analyze the reasons for this phenomenon. Thanks!
The nozzle seems to be OK, but the tray is basically corroded! Your working environment is subject to acid and alkali corrosion, so anti-corrosion methods should be considered in many aspects, and material is only one of them!
I'm considering switching to 31603. Do you have any suggestions?
From the perspective of corrosion, this is corrosion from low-temperature wet flue gas. The corrosion resistance of general metal materials, including conventional stainless steel, is still problematic. Therefore, the effect of choosing carbon steel surface for anti-corrosion according to the usage conditions, medium, temperature and pressure can be better.
Mr. Wang’s analysis is more professional.
If S30408/S30403 stainless steel is used at high temperatures, will the carbon content be lower?
Check the filling material, it shouldn't be corroded so badly. The operating temperature of the scrubber tower is over 300, and the water has been vaporized. Can it achieve the scrubbing effect?