With the continuous development of industry, the impact of many emissions on our environment is quite significant. However, the introduction of catalytic combustion equipment has largely addressed this issue. Many may not be aware that the clean treatment of industrial emissions by catalytic combustion relies primarily on the catalytic effect of catalysts. To maintain their normal activity, reactions typically require higher temperatures, necessitating preheating before treatment for better adaptation. Below, we'll briefly understand this process.
In fact, all catalysts have a catalytic activity temperature, which for catalytic combustion is referred to as the ignition temperature of the catalyst. The temperature of the waste gas and bed must reach the ignition temperature to proceed with catalytic combustion, hence the need for a preheating device.
During the preheating process for the equipment, heat exchangers and piping within the bed can be utilized to achieve this. The heat source for the preheater can be flue gas or electric heating, with electric heating being more commonly used currently. Once our catalytic reaction commences, we can employ recycling methods to preheat the exhaust gas. In cases with significant reaction heat, a waste heat recovery unit can be installed to achieve energy-saving effects. The temperature of the preheated exhaust gas is generally higher than the catalyst's active temperature.
The photo-oxidation catalytic state detection and maintenance method ensures both the equipment's consistent good condition and maximizes the lifespan of its components. This detection and maintenance not only helps resolve malfunctions but also effectively extends the service life of catalytic combustion equipment. Therefore, regular maintenance and inspection are crucial to ensure smooth operation.
