Hotspot issues in synthesis towers
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In the ammonia synthesis tower, with a newly installed catalyst, the operating temperature started to drop after less than a year of operation. What is the reason?
Let’s analyze it from the following points: 1. The heating and reduction process was not carried out properly. 2. Poor control during production led to poisoning and deactivation of the catalyst. 3. Overproduction. 4. Quality issues with the catalyst. This post was last edited by ddfmy on 2009-3-26 at 22:35.]
All the points mentioned upstairs are worth investigating carefully. In my opinion, the main cause is the poor operating conditions – toxic substances such as copper liquid, liquid ammonia, carbon monoxide, carbon dioxide, and hydrogen sulfide get into the system, leading to the deactivation of the catalysts in the upper layers. The operating pressure and space velocity can also cause the hot spots to shift downward. It would be advisable for the person in question to examine the records from over the past year to see if there have been any cases of poisoning, and by comparing the times when the hot spots shifted downward, it might be easy to identify the cause.