Honeycomb shaped low-temperature SCR denitrification catalyst

The harmful substances such as smoke, sulfur dioxide, and nitrogen oxides (NOX) contained in the flue gas of low-temperature SCR denitrification catalysts are the main causes of environmental problems such as air pollution, acid rain, and greenhouse effect. How to effectively remove SO2 and NOX from flue gas has attracted the attention of researchers around the world. The widely used desulfurization technology in the world today is flue gas desulfurization (FGD), among which wet FGD has high desulfurization efficiency but is difficult to use for denitrification. This is because the main component of NOX in flue gas is NO, accounting for more than 90% of the total. It is a colorless, odorless, and inactive gas that is almost not absorbed in water or alkaline solutions, except for the formation of complex compounds.

Generally speaking, low-temperature denitrification catalysts are tailor-made for projects, based on the composition, characteristics, efficiency, and customer requirements of the project flue gas. The performance of low-temperature denitrification catalysts (including activity, selectivity, stability, and regenerability) cannot be directly quantified, but is comprehensively reflected in some parameters, mainly including activity temperature, geometric characteristic parameters, mechanical strength parameters, chemical composition content, process performance indicators, etc. As the cerium oxide loading continues to increase and gradually reaches 6wt%, the specific pressure at which the hysteresis loop closes in the low-pressure region gradually increases. The pore radius in the pore size distribution map increases, gradually from 10.6nm to 16.8nm, and the specific surface area tends to remain stable. This indicates that as the cerium content continues to increase, the pore size of the low-temperature denitrification catalyst tends to increase, but it has little effect on the specific surface area of the low-temperature denitrification catalyst.

Honeycomb shaped low-temperature SCR denitrification catalystadvantage

1. A carrier that undergoes high-temperature stabilization treatment and is resistant to high temperatures and corrosion, ensuring that the catalyst is not sintered and maintaining a stable specific surface area;

2. Convenient to clean catalyst, ensuring a very long service life of the catalyst;

3. Highly dispersed precious metals;

4. Low resistance, saving operating costs;

5. Low temperature and high activity;

6. Very high mechanical strength;

7. Very high thermal stability.

Honeycomb shaped low-temperature SCR denitrification catalystSuitable for medium to high concentration treatment of various VOCs such as alcohols, esters, ethers, hydrocarbons, ketones, and benzene. This series of products is widely used in industries such as spraying, packaging printing, and chemical engineering, and is suitable for CO and RCO environmentally friendly combustion equipment.