Low-temperature rare earth-based denitration catalyst with nano synapse structure as well as preparation method and application of low-temperature rare earth-based denitration catalyst
By using nanosynaptic structure low-temperature rare earth-based denitrification catalysts in the steel sintering industry, the problem of insufficient catalytic activity and anti-toxicity ability of existing catalysts in low-temperature environments is solved, and efficient NOx denitrification and anti-hydrosulfur poisoning performance is achieved.
Patent Information
- Application Number
- CN202510080102.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-19
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2045-01-19
AI Technical Summary
The existing low-temperature denitrification catalysts are insufficient in the steel sintering industry, especially in the low-temperature environment, and are susceptible to water and ammonium bisulfate poisoning.
A low-temperature rare earth-based denitrification catalyst was used for nanosynaptic structures. It was prepared by a combination of titanium dioxide with nanosynaptic structures as the support, a composite oxide combining cerium oxide and yttrium oxide as the active component, and a composite oxide of priserodymium oxide and samarium oxide as the co-catalyst.
The catalyst exhibits efficient NOx denitrification performance at low temperatures, with a denitrification efficiency of more than 90%. It also has strong anti-water sulfur poisoning properties, extending the service life of the catalyst.