Why is the hotspot temperature used to determine the activity level of catalysts
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Why is the hotspot temperature used to determine the activity level of catalysts
Under conditions where other factors such as gas flow rate, circulation volume, and gas after alcohol treatment remain unchanged, a high hotspot temperature indicates high catalyst activity and a fast reaction rate; conversely, a lower temperature suggests low activity.
Because the hotspot temperature is the highest temperature reached by the catalyst during a reaction, a higher hotspot temperature indicates that the catalyst’s active temperature is higher, which in turn means it requires a higher reaction temperature; this is because the catalyst only increases its reaction temperature when its activity declines over time···························
I know everything you’re talking about,,, What I want is the principle,,,
Chemical reactions take place. There is a relationship regarding the energy required for such reactions: when a catalyst has high activity, less energy is needed for the reaction to occur, so it is possible to provide sufficient reaction energy at lower temperatures; conversely, more energy is required. The level of activity of a reduced catalyst depends on the degree of dispersion of its active centers (i.e., the size of the particles). The greater the dispersion of the active centers (the smaller the particles), the higher the catalyst’s activity. The decrease in catalyst activity over time is due to the aggregation of these active centers (particles).
It has good activity and can react at low temperatures. The fact that this reaction can occur under such a catalyst and at low temperatures indicates that its activity is very high. To determine the quality of a catalyst, it is necessary to consider the performance of the reaction.