The industrial sector is under increasing pressure to reduce its environmental impact, particularly concerning air pollution. Nitrogen oxides (NOx) are a significant component of industrial emissions, contributing to acid rain and smog. Effective flue gas denitration is therefore paramount. Recently, advancements in catalytic technologies have introduced innovative solutions, with Fe-TiO2 catalysts emerging as a particularly promising avenue for enhancing catalyst performance for NOx reduction.

Titanium dioxide (TiO2) has long been recognized for its catalytic properties, often serving as a carrier for other active metals. When doped with iron (Fe), TiO2 exhibits significantly improved catalytic activity, especially in the context of denitration processes. This synergy between Fe and TiO2 is crucial for promoting the decomposition of oxidants like hydrogen peroxide (H2O2), which then generates highly reactive hydroxyl radicals (·OH). These radicals are instrumental in oxidizing NOx into less harmful compounds that can be subsequently removed. This mechanism is a cornerstone of modern catalytic oxidation denitrification.

A key challenge in flue gas treatment, particularly in power plants that experience variable load operations, is maintaining high denitrification efficiency at lower temperatures. Traditional Selective Catalytic Reduction (SCR) systems often suffer from reduced performance under these conditions. This is where the application of Fe-TiO2 catalysts shines. Research indicates that these catalysts maintain robust activity even at lower temperatures, offering a reliable solution for low-temperature flue gas NOx removal. This stability is vital for industries aiming for consistent environmental compliance regardless of operational fluctuations.

The effectiveness of these catalysts is further enhanced by optimizing various operational parameters. Factors such as the ratio of H2O2 to NOx, catalyst space velocity, and flue gas composition, including the presence of SO2, all play a role. Studies have shown that while low concentrations of SO2 can sometimes promote NO oxidation, higher concentrations can lead to competition for the catalyst's active sites, potentially reducing overall NOx removal efficiency. Therefore, precise control and understanding of these variables are essential for maximizing the benefits of these catalysts in industrial emission control.

Moreover, the preparation method of the Fe-TiO2 catalyst, such as co-precipitation, and its structural integrity after prolonged use are critical. While some minor surface agglomeration and a slight decrease in specific surface area might occur with extended operation, the core crystalline structure of the Fe-TiO2 catalyst generally remains stable. This inherent durability contributes to a longer service life and consistent performance, making it a valuable investment for companies looking to improve their environmental footprint. By understanding and implementing these advanced catalytic solutions, industries can achieve superior catalyst performance for NOx reduction and contribute to cleaner air.

For manufacturers and industrial facilities seeking to upgrade their emission control systems, exploring the benefits of Fe-TiO2 catalysts is a strategic move. These catalysts represent a significant step forward in achieving compliance with stringent environmental regulations and fostering a more sustainable industrial future. NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing cutting-edge solutions in this domain.