Why can’t the synthesis tower overheat when ammonia pressure is increased? What are the harms?
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Full-circulation aqueous solution method: Why can’t the synthesis tower overheat when ammonia pressure is increased? (
Excessive temperature has an impact on the lining and welds of the synthesis tower
This type of over-temperature results in a sudden rise in the temperature inside the tower; a large difference arises between the temperature inside the tower and the temperature of the tower walls, which can easily damage the lining.
In a synthesis tower, the ammonia pressure should generally not exceed 150 degrees before feeding can begin; excessive temperature during this pressure increase can lead to uneven deformation between the tower lining and the tower walls, causing significant damage.
Is overheating always a sudden rise in local temperature? It is only sudden increases that cause a sharp rise in stress, right?