In October 2019, after long-term research efforts by the technical staff of the R&D department and a large number of experimental analysis and demonstrations, the regeneration method of the arsenic poisoning SCR denitrification catalyst developed by our company was officially authorized by the national invention patent. The arsenic content in coal combustion in northern my country is high, and arsenic poisoning is one of the main factors for catalyst deactivation in this area, and it is widespread. The deactivation of arsenic poisoning is largely irreversible deactivation, which is a recognized technical problem in the industry. Therefore, the The successful development of technology is an important technical achievement with practical significance.

　　In November 2018, our company used this technology in the catalyst regeneration project of Jilin Siping Power Plant with high arsenic content, and effectively regenerated the deactivated catalyst of the plant, with obvious effect and good operation.

　　This technology is mainly to develop arsenic removal compound cleaning agent and regeneration process. Under the condition of neutral pH, the removal rate of arsenic on the surface and inside of the catalyst can reach 60-90%, and the active sites are released again, so that the activity of the catalyst is significantly improved. . The newly developed agent does not introduce sodium, potassium, calcium and other harmful components to the catalyst, which avoids secondary pollution of the catalyst and is also conducive to the treatment of subsequent cleaning waste liquid.

　　This patent is an important supplement to our company's catalyst regeneration technology patent pool, which makes our company's catalyst field patent technology reach nearly 30. It is a veritable large catalyst regeneration and utilization patent in my country, which reflects the technology of Kenchuang company. The consistent characteristics, continue the development of cutting-edge technology of catalyst regeneration in my country.