The impact of temperature increase on ozone decomposition catalyst
1. The catalytic activity may decrease (especially at high temperatures)
Most ozone catalysts have good catalytic activity within a certain temperature range (typically from room temperature to 80°C, and some can reach up to 120°C).
However, if the temperature is too high (such as exceeding 100~120°C, depending on the type of catalyst), the activity of the catalyst may decrease or even deactivate. The reasons include:
The active components may sinter or change their crystal form;
The carrier structure may be damaged (such as the oxidation aluminum carrier undergoing high-temperature sintering);
The surface area of the catalyst may decrease, and the active sites may be covered or reduced;
It may trigger side reactions, such as the production of nitrogen oxides (when NOx is present) or other undesired products.
2. The lifespan of the catalyst shortens
If the catalyst operates at high temperatures for a long time, it is prone to aging, sintering or poisoning, thereby reducing its service life.
3. Safety risks
If the temperature is too high, it may also cause problems with the temperature resistance of equipment materials, or increase the risk of fire/explosion (although ozone itself is not flammable, it is necessary to be cautious when certain impurities are present at high temperatures).
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