1results about How to "Improve denitrification performance" patented technology

This invention relates to a method for the selective catalytic reduction of NO by ammonia. x This invention relates to a catalyst, its preparation method, and its application, belonging to the field of environmental catalysis and air pollution control technology. The catalyst comprises a support, a main active component, and a modifying agent. The support is selected from SAPO-18 molecular sieve, the main active component is selected from Cu, and the modifying agent is selected from Zr. The space velocity is 88,000 h⁻¹. ‑1 At that time, the ZrCu-SAPO-18 molecular sieve catalyst, within the temperature range of 225–450℃, produced NO x The conversion rate reached over 90%; after hydrothermal treatment at 750℃ for 12 hours, NO was reduced within the range of 175–400℃. x The conversion rate remains above 90%. The catalyst of this invention can be used to remove NO from diesel vehicle exhaust and stationary source flue gas. x Highly efficient removal.