Desulfurization

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.