How should materials be selected for ammonia synthesis towers to meet operational requirements? Considering possible failure modes, which one is preferable?
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Given the operational requirements of the ammonia synthesis tower, how many material options are available? If we take into account factors such as the types of failures that may occur and cost-effectiveness, which option would be better? I would appreciate your advice
The key factor is the operating temperature; if it’s at room temperature, then low-alloy steel can be used. I’ve seen in previous cases that people arrange for the syngas at room temperature to flow through the gap between the tower internals and the cylinder, so as to prevent the operating temperature of the cylinder from becoming too high. I saw earlier that double-phase stainless steel is used in some cases; presumably the operating temperature is quite high, and it becomes necessary to take into account the impact of hydrogen and nitrogen on the material of the cylinder. However, in such cases the number of inlet and outlet ports will be fewer.
But these are issues that large engineering companies consider; it doesn’t seem like ordinary people need to worry about them, right? What is the daily production capacity of your equipment?