用于中小型锅炉烟气处理的络合吸收及生物还原反应系统
By using a complexation absorption and bioreduction reaction system, Fe(II)EDTA and a single-column double-head MBfR reactor to treat flue gas from small and medium-sized boilers, the high cost and secondary pollution problems of flue gas denitrification treatment for small and medium-sized coal-fired industrial boilers have been solved, achieving efficient and environmentally friendly NOx removal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUZHOU UNIV OF SCI & TECH
- Filing Date
- 2023-03-22
- Publication Date
- 2026-07-17
AI Technical Summary
The denitrification treatment of flue gas from small and medium-sized coal-fired industrial boilers is characterized by high cost, large footprint, and secondary pollution. Traditional bioreactors suffer from complex structure, uneven distribution of pollutants, and packing blockage. Furthermore, the addition of organic carbon sources increases reaction costs and CO2 emissions.
A complexation absorption and bioreduction reaction system is adopted, including a complexation absorption system, a bioreduction system and an external circulation system. A single-column double-head MBfR reactor is used. NOx is absorbed by Fe(II)EDTA complexation and recycled in the bioreduction system. Zero-valent nano iron and methane are used as electron donors for the reduction reaction, avoiding the toxicity of external organic matter and oxygen to microorganisms.
It achieves efficient NOx absorption and reduction, reduces reaction costs, reduces pollutant emissions, conforms to the concept of environmental protection and sustainable economic development, and improves the stability and processing capacity of the reactor.
Smart Images
Figure CN116173682B_ABST