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Limestone gypsum method in desulfurization and denitrification: efficient purification of flue gas
In the field of exhaust gas treatment, desulfurization and denitrification technology plays a crucial role. Among them, the limestone gypsum method, as a mature and reliable desulfurization technology, is widely used in the flue gas purification process of industrial boilers and thermal power boilers.
The basic principle of limestone gypsum desulfurization technology is to use limestone (calcium carbonate) as an absorbent and react chemically with sulfur dioxide in the flue gas. The specific process is as follows: limestone is crushed, mixed with water to make a slurry, and then pumped into the absorption tower. In the absorption tower, the limestone slurry comes into full contact with the flue gas, and the sulfur dioxide in the flue gas reacts with the calcium carbonate in the slurry to produce calcium sulfite. Calcium sulfite is oxidized to calcium sulfate, also known as gypsum, at the bottom of the absorption tower. After concentration and dehydration, gypsum slurry forms gypsum products with a moisture content of less than 10%, which can be used as additives or raw materials in the building materials industry.
The reason why this technology is widely used is due to its efficient and stable desulfurization performance. The desulfurization efficiency of limestone gypsum method can reach over 98%, ensuring that flue gas emissions meet environmental standards. Meanwhile, the by-product gypsum has high economic value and achieves the recycling of resources. In addition, the process flow of this technology is relatively simple, easy to operate and maintain, further reducing operating costs.
The limestone gypsum desulfurization technology is suitable for industrial boilers and thermal power boilers of various scales, providing flexible solutions for different industries. In thermal power plants, this technology can effectively reduce sulfur dioxide emissions and improve air quality. In industries such as steel and chemical, significant environmental benefits can also be achieved.
As a professional environmental protection equipment manufacturer, we have been deeply involved in the field of desulfurization and denitrification for many years, accumulating rich project experience and technical strength. If you are interested in limestone gypsum desulfurization technology or need customized waste gas treatment solutions, please feel free to contact us at any time. We will wholeheartedly provide you with high-quality service and jointly safeguard the blue sky and white clouds.