It is a tower device in which the medium contains 5% dilute sulfuric acid. How should this equipment be treated to prevent corrosion by dilute sulfuric acid?
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Tower parameters: Design pressure 0.35； Design temperature 260℃ ； Shell material: Q245R ； The medium is quench water (containing 5% dilute sulfuric acid) + other process gases ； Inner diameter of the tower: 1400 ； The tower is 22 meters tall. May I ask: How can this device address the issue of corrosion caused by dilute sulfuric acid?
What is the actual operating temperature? If it is less than 200°, PTFE or PFA-coated materials can be chosen!
Operating temperature: 240°C; lining is not allowed
Can you stop talking nonsense! Which stainless steel can resist corrosion by dilute sulfuric acid? ? ?
For this operating condition, only zirconium material can barely handle it, though it is also very expensive
As mentioned above, it’s a friend who is misleading me. Based on cost-effectiveness and practical anti-corrosion requirements, it is recommended to use imported vinyl ester resin anti-corrosion coatings; these are currently in use in the coal and petroleum industries, and they are effective against corrosive substances such as sulfur gases, acidic gases, and alkaline gases.
As mentioned above, it’s a friend who is misleading me. Based on cost-effectiveness and practical anti-corrosion requirements, it is recommended to use imported vinyl ester resin anti-corrosion coatings; these are currently in use in the coal and petroleum industries, and they are effective against corrosive substances such as sulfur gases, acidic gases, and alkaline gases.