What causes the temperature of the ozone destructor unit to rise when working?
We have received many customer feedback stating that in the ozone destructor unit (ozone decomposition device), when using ozone decomposition catalysts, the system temperature will rise. This is indeed a common problem during use. Here are some factors that we have identified as contributing to the increase in the temperature of the catalyst:
I. Working principle of ozone destruction catalyst
The ozone decomposition catalyst (usually a supported metal oxide, such as MnO₂, CuO, etc.) functions by catalyzing the reaction to decompose ozone into oxygen. The reaction equation is: 2O₃→ 3O₂. This reaction is an exothermic reaction, meaning that heat is released during the reaction.
II. Reasons for temperature increase
1. Ozone decomposition is an exothermic process. When ozone decomposes on the catalyst surface, it releases heat. If the ozone concentration is high or the gas flow rate is low, local heat accumulation will cause the temperature to rise.
2. Exothermic reaction + insufficient environmental heat dissipation. If the structural design of the ozone destroyer does not adequately consider heat dissipation (such as a thick catalyst bed layer, long gas residence time, poor ventilation, etc.), the heat generated by the reaction cannot be promptly dissipated, resulting in a gradual increase in temperature.
3. High ozone concentration or high gas velocity. When the incoming ozone concentration is high or the gas residence time in the catalyst bed layer is long (low flow rate), the reaction volume increases, and the heat released is large, which is also prone to cause local temperature rise.
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