How should hydrogenation equipment be protected against corrosion?
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How can hydrogenation equipment be protected from corrosion? I’d like to ask everyone!
This post was last edited by cmt2098200 on 2009-8-20 22:50; it is based on material selection. The material selection must comply with API Publication 941. External attachments and skirts (with a minimum height of 450 mm) should have the same nominal composition as the material used for the vessel shell, or at least be made of a material that offers equivalent or better resistance to hydrogen attack.
What was said upstairs is too complicated as well as too simplistic. In my opinion: 1. As for the inspection of hydrogen pipelines, matters related to API standards are not the responsibility of plant engineers; what really matters is to conduct proper inspections of these pipelines during each maintenance session. 2. High-pressure air coolers can be deadly if they leak; it’s necessary to study the flow direction of inlet and outlet fluids, the amount of water used, whether there are any imbalances, and the type of lining used, among other things. 3. Blockage in high-flow areas and under-scale corrosion. 4. Surface evaporation air cooling; in my opinion, it’s not necessary if done properly. 5. Other common types of corrosion.
What was said upstairs is too complicated as well as too simplistic. In my opinion: 1. As for the inspection of hydrogen pipelines, matters related to API standards are not the responsibility of plant engineers; what really matters is to conduct proper inspections of these pipelines during each maintenance session. 2. High-pressure air coolers can be deadly if they leak; it’s necessary to study the flow direction of inlet and outlet fluids, the amount of water used, whether there are any imbalances, and the type of lining used, among other things. 3. Blockage in high-flow areas and under-scale corrosion. 4. Surface evaporation air cooling; in my opinion, it’s not necessary if done properly. 5. Other common types of corrosion.