Ammonia-based FGD technology (AS-WFGD) uses liquid ammonia or ammonia water to remove SO2 from flue gas and produce high quality ammonium sulfate [(NH4)2so4]. AS-WFGD
It is not suitable for SO2 removal from tail gas of large thermal power units, petroleum and chemical enterprises burning low-cost and high-sulfur fuels. While using ammonia or waste ammonia water to desulfurize, it produces high-quality and high-purity ammonium sulfate, which gradually becomes the mainstream technology for comprehensive utilization of flue gas desulfurization circular economy in large projects.
+ The technology is mature, and the only ammonia desulfurization technology successfully used in 500 B 1W flue gas volume.
+ The desulfurization tower is not easy to scale.
+ The range of sulfur content in fuel is adaptable, especially for desulfurization of high sulfur coal, heavy oil and petroleum coke.
+ Complete resources turn waste into treasure, turn harm into benefit, no secondary pollution;
+ The by-product of desulfurization is ammonium sulfate, which can be widely used as fertilizer and has high utilization value.
+ The escape rate of NH3 is low, < 10 ppm.
+ The desulfurization efficiency is generally higher than 98%.
+ The system is simple.
+ Absorbent utilization rate is high.
+ The equipment occupies less land and is easy to be reformed.
+ The optimized ultra-clean ammonia desulfurization process meets the ultra-low emission requirements of Sox and PM.
+ Absorbent Storage and Transportation System
+ Fume system
+ Ammonium sulfate dehydration and drying system
+ Process water system
+ Compressed air system
Recommended Scope of Application
+ 50MW and above new large or medium-sized units;
+ Desulfurization of city gas installations;
+ Sulfur content of fuel is between 0 5 ~ 5%.
+ Desulfurization in the process of oil refinery;
+ The required desulfurization efficiency is above 98%;
+ There are fertilizer plants producing synthetic ammonia or chemical and petrochemical and other companies producing ammonia by-products in the surrounding area of the plant
+ Saline-alkali area power plant.