Limestone-gypsum desulfurization process is a widely used wet desulfurization technology in the world, which is suitable for coal with high sulfur content, especially in areas where limestone is abundant and gypsum is widely used.

The semi-dry flue gas desulfurization technology is based on the principle of circulating fluidized bed. It establishes a high-density, intensely turbulent particle bed layer at the upper part of the Venturi tube in the desulfurization tower.

Traditional dry flue gas desulfurization processes mainly include dry calcium injection, electron beam irradiation, and adsorption methods, but their desulfurization efficiency is relatively low. Our company adopts a new sodium-based desulfurization process, which effectively improves efficiency. This method is particularly suitable for treating flue gas with low SO2 content, where technical renovation space is limited and investment is minimal, such as in small and medium-sized lime kilns.