With the gradual strengthening of people’s awareness of environmental protection, the national standards for industrial emissions are increasingly strict, and the environmental protection technology in the field of petrochemical industry is also constantly improving. Selective catalytic reduction (SCR) denitrification technology, as the most efficient emission reduction technology we currently use, is widely used in the petrochemical industry. There are still a number of challenges. How should we respond to the emergence of problems? This paper discusses the main challenges encountered in the practical application of SCR denitration technology and the corresponding solutions.
SCR denitrification technology refers to the reduction of NOx to nitrogen N2 and water (H2O) under the catalytic action of a certain temperature. Compared with traditional denitrification technology, SCR denitrification technology has the advantages of higher denitrification rate, low ammonia escape rate and stable operation. The core of SCR denitration technology is that the catalyst directly affects the efficiency and operating cost of denitration. In the practical application of SCR denitration technology, it is mainly divided into the following aspects:
1, the catalyst activity is reduced: at low temperatures, the activity of the catalyst will decrease, resulting in a reduction in the conversion rate of NOx.
2, equipment corrosion risk increases: at low temperatures, the water vapor in the flue gas may condense on the surface of the equipment, resulting in corrosion of the equipment and catalyst inactivation.
3, there will be side reactions: at low temperatures, it will lead to side reactions on the catalyst surface, which will reduce the removal efficiency of NOx, and will also lead to catalyst deactivation.
4, market and policy changes: the development of environmental protection policies and changes in the market environment will also directly affect the application and promotion of low-temperature SCR denitrification technology.
5, Stability of equipment technology: Low-temperature SCR denitrification technology is still in the development stage, and there is still room for stability improvement.
In addition, what are the conditions and solutions that need to be solved for SCR denitrification technology in the petrochemical field?
1, Develop new catalysts to improve their activity and selectivity at low temperatures. Through technology development, the performance of catalyst at low temperature is enhanced.
2, the need to continue to carry out technology research and development, improve the system innovation, automatic control and intelligent monitoring, improve the stability and reliability of the system.
3, through technological innovation and cost control, to reduce technical costs, improve economy, and promote the promotion and application of technology.
4, Promote technology promotion and cloud adoption by paying close attention to policy dynamics and market changes.
5, Improve public awareness and acceptance through public education and popularization of science, and enhance social support for the technology.
In summary, the implementation of the above solutions can effectively deal with the challenges faced by low-temperature SCR denitrification technology in the field of petrochemical industry, promote the development and application of this technology, and contribute to the realization of green environmental protection and sustainable industrial production.
Post time: Apr-22-2024