Dry Flue Gas Desulfurization
Technical Features
In dry flue gas desulfurization, the desulfurizing agent is NaHCO₃ or Ca(OH)₂, achieving a desulfurization efficiency of over 95%.
The desulfurizing agent is evenly distributed and its dosage is easy to control.
The desulfurizing agent offers a high utilization rate.
Stable operation.
Technical Advantages
The chimney exhaust is free of plume (smoke trail).
No chimney anticorrosion treatment is required.
There is no desulfurization wastewater generated, unlike in wet FGD.
There is no secondary pollution from aerosols.
Semi-Dry Flue Gas Desulfurization Technology
Technical Characteristics:
With Ca(OH)₂ as the desulfurizing agent, the desulfurization ash is circulated and humidified to establish favorable desulfurization conditions. The process achieves a high desulfurizing-agent utilization rate, with no slurry preparation system and no clogging.
Technical Advantages:
The desulfurization ash is recycled to improve desulfurization efficiency and desulfurizing-agent utilization.
No slurry preparation system, no clogging, and no secondary pollutants.
Integrated desulfurization and dust removal, with low operating costs.
Integrating lime slaking with ash recirculation and humidification minimizes equipment caking.
