NOx treatment | What are the types of catalysts in SCR denitration system? What are their respective characteristics?

With the intensification of global climate change and environmental problems, green energy transformation has become a common goal of all countries. SCR denitration technology plays an important role in the field of current environmental protection and energy utilization. In SCR denitration technology, catalyst is the core substance, which has a decisive impact on improving the denitration efficiency.

Catalyst is a crucial component of SCR denitration system, which directly affects the denitration efficiency, operation status and economy. Catalysts in SCR denitration systems are mainly divided into the following categories, and each type has unique characteristics:

The following types of catalysts are commonly used:

Cellular catalyst: This is the catalyst type with the highest proportion in the market, and has a large surface area and active components, so the activity is high and the volume is small. The SCR denitrification catalyst used in Green Valley can meet various flue gas conditions, and the denitrification efficiency can reach more than 95% of the denitrification activity efficiency. The cellular catalyst is suitable for high dust and low dust environments.

Plate catalysts: The market share of this catalyst is low, but it has increased in recent years. The surface area of the plate catalyst is between the honeycomb type and the corrugated plate, the weight is relatively light, but the active substance is about 70% less than the honeycomb type, and it is also suitable for high temperature and low dust environment, but there may be blockage between the sub-modules.

Usually, when we choose SCR denitrification catalyst, we also need to consider the composition of the exhaust gas, catalytic activity and stability, temperature range, economy and environmental protection and other properties, such as wear resistance, corrosion resistance and poison resistance.

With the continuous development of technology, the types and properties of SCR denitrification catalysts will be constantly updated to provide more efficient and environmentally friendly solutions for flue gas denitrification.