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Dürr - Catalytic Filter Element
The catalytic filter element concept is a technology that combines the removal of sulfur, nitrogen oxides, and dust using catalytic candle filters (CCFs). The system is therefore based on the catalytic process, but depending on the application it can also fall into the separation process category. The catalytic filter elements allow dust, heavy metals, sulfur oxides and nitrogen oxides to be removed simultaneously in one Air Pollution Control System. The consistently high process temperature makes it possible to use the waste heat after the Air Pollution Control phase. There is no longer any need for a cooling phase before the dust is removed by the catalytic candle filters or a subsequent re-heating phase before the SCR stage to reduce nitrogen oxide levels.Most popular related searches
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- Adaptability to different volumetric flow rates
- Simultaneous reduction in the following pollutants:
- Dust
- Nitrogen oxides (NOx)
- Sulfur oxides (SOx)
- Higher separation levels
- Lower risk of an unwanted reaction between ammonia and sulfur compounds
- Increased efficiency because of the higher temperature range of up to 400°C
Catalytic filter element systems are used primarily in the glass and cement industries. This type of Air Pollution Control System also increasingly found in the waste combustion, steel, and timber industries.
- Glass Industry
- Cement Industry
- Waste Combustion
- Steel Industry
- Timber Industry
Catalytic filter element systems separate and convert the pollutants or contaminations produced during manufacturing processes with the help of catalytic candle filters.
The pollutants listed below typically found in all or part of the exhaust air volume flows:
- Dust
- Nitrogen oxides (NOx)
- Sulfur dioxide and trioxide (SOx)
- Hydrogen chloride (HCl)
- Varying volumetric flow rates and pollutant concentrations
If VOCs are also present in the exhaust gas, additional active VOC filter elements used to remove them.