Power generation, particularly from fossil fuels, is a primary source of nitrogen oxide (NOx) emissions, which contribute to air pollution and climate change. Selective Catalytic Reduction (SCR) systems have become a cornerstone of emission control strategies in power plants worldwide. The efficiency of these systems relies heavily on the performance of the SCR honeycomb catalyst, a sophisticated component designed for maximum NOx reduction.

The fundamental principle of SCR involves using ammonia (NH3) as a reducing agent, reacting with NOx in the flue gas over a catalyst to produce nitrogen (N2) and water (H2O). The SCR honeycomb catalyst provides the essential platform for this reaction. Its unique structure, characterized by numerous parallel channels, offers a high surface area and optimal flow dynamics. This design ensures that the flue gas comes into intimate contact with the catalytic surface, promoting efficient chemical conversion. The materials used, often based on titanium dioxide (TiO2) with active elements like vanadium and tungsten, are selected for their activity at typical power plant operating temperatures and their resistance to deactivation.

In power plant applications, flue gas composition can vary, influencing catalyst performance. Factors like the presence of sulfur dioxide (SO2) can lead to the formation of sulfates, which may poison the catalyst over time. Likewise, fly ash, a particulate byproduct of combustion, can physically clog the catalyst channels. Modern SCR honeycomb catalysts are engineered to mitigate these issues. They often feature improved resistance to SO2 oxidation, lower ammonia slip, and robust physical durability to withstand particulate matter. This focus on resilience is key to maintaining high NOx removal efficiency over extended periods, crucial for the continuous operation of power generation facilities.

The longevity and effectiveness of SCR catalysts in power plants are critical for both environmental compliance and operational cost-effectiveness. Catalysts designed for this sector can have service lives of 16,000 to 40,000 hours, depending on the flue gas characteristics and operational conditions. This longevity reduces the frequency of catalyst replacement, lowering maintenance costs and minimizing downtime. By achieving significant NOx reduction, typically upwards of 90%, these catalysts play a pivotal role in enabling power plants to meet stringent environmental regulations and contribute to cleaner air. The effectiveness of power plant emission control is directly tied to the quality and design of the SCR catalyst.

NINGBO INNO PHARMCHEM CO.,LTD. supplies high-performance SCR honeycomb catalysts specifically designed for power plant applications. Our commitment to quality and innovation ensures that our catalysts provide superior NOx reduction and long-term reliability for your emission control needs. We are a trusted partner in achieving effective industrial exhaust treatment and promoting environmental sustainability.