一种纳米多金属铁酸盐催化剂及其制备方法和应用
The nano-polymetallic ferrite catalyst prepared by high-temperature solid-phase reaction and magnetic separation technology solves the problems of low yield, high cost and narrow temperature window of existing nano-ferrite catalysts in carbon reduction and denitrification processes, and realizes efficient and low-cost CO2 reduction and NOx reduction, which is suitable for industrial flue gas treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CENT SOUTH UNIV
- Filing Date
- 2024-05-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing nano-ferrite catalysts suffer from low yield, high cost, limited CO2 reduction capacity, narrow operating temperature window, and the need for secondary heating for denitrification during carbon reduction and denitrification processes, making industrial application difficult.
Using inexpensive and readily available natural minerals and solid waste as raw materials, a nano-polymetallic ferrite catalyst with strong magnetic properties and high catalytic activity is synthesized through high-temperature solid-phase reaction. Magnetic separation and nano-sand milling technology are used to achieve the nano-sizing and efficient preparation of the catalyst, thereby broadening the CO2 reduction temperature range and reducing the denitrification temperature.
It achieves efficient and low-cost CO2 reduction to solid carbon and selective NOx reduction to N2. The catalyst can directly utilize the waste heat of the factory flue gas, reducing the need for additional heating, improving CO2 reduction and denitrification efficiency, and is suitable for industrial production.
Smart Images
Figure CN118513049B_ABST