Regarding synthetic catalysts, their activity is affected to varying degrees after each start-up and shutdown during operation.
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After starting up or shutting down the methanol synthesis catalyst, the temperature at the outlet of the synthesis tower shows a slight increase. Analysis of the catalyst taken out revealed a high iron content. However, it has not been clear how the start-up and shutdown processes affect the catalyst’s activity; I would appreciate some guidance from experts.
What is your iron content? The rate of pressure and temperature changes when starting up or shutting down also affects the catalyst.
You need to understand the components of catalysts. Catalysts are, in essence, substances that possess certain specific physical and chemical properties. If the vehicle is not operated according to the proper guidelines, things like too rapid pressure increase can crush the catalyst, and temperature also has a direct impact on its activity. There are also substances that act as poisons for catalysts; some of these have a permanent effect, while others are temporary
Facing the same problem, I hope an expert can help resolve it
At low temperatures, there is a possibility of the formation of iron carbonyl Fe(CO)6 in equipment pipelines