Flue gas desulfurization

The ammonia flue gas desulfurization (FGD) system uses ammonia (ammonia water, liquid ammonia) as an absorbent to react with sulfur dioxide contained in industrial waste gas to remove sulfur dioxide and generate ammonium sulfate as a by-product.

Application industries: chemical industry, electric power, steel, coking, smelting, cement, papermaking and other industries.

Shandong MirShine Environmental Protection's ammonia-based desulfurization converts sulfur dioxide in flue gas into important chemical raw materials such as ammonium sulfate, ammonium bisulfate or ammonium sulfite, and the entire process does not cause any secondary pollution or three waste emissions, truly turning pollutants into treasures, and completely eliminating the problems of subsequent CO2 emissions and by-product treatment and disposal after flue gas desulfurization, achieving organic fertilizer co-production, and successfully producing high-value-added products such as ammonium sulfate and humic acid. Ammonia-based desulfurization technology innovatively solves the problems of aerosol and ammonia escape, with low equipment operating costs, low device resistance, and saved operating power consumption.

Core Technology

Integrated technology of cascade separation and purification, ammonia desulfurization, dust removal and denitrification.

On May 27, 2016, the Chinese Society of Environmental Sciences held an appraisal meeting for the "integrated technology of step-by-step separation and purification ammonia desulfurization and dust removal" developed by our company in Shijiazhuang, Hebei Province. The appraisal committee, composed of experts such as Academician Hao Jiming of Tsinghua University, conducted on-site inspections of the desulfurization industrial device, reviewed relevant materials, and unanimously agreed after questioning and discussion that the technology aimed at the ammonia desulfurization and dust removal of coal-fired boiler flue gas and ammonia escape, and developed a "binary structure" multifunctional integrated double-circulation desulfurization process and supporting equipment to achieve ultra-low emissions of sulfur dioxide and smoke; and through the reasonable setting of the oxidation section liquid level, the selection of the appropriate pH value, and the use of distributed oxidation, the efficient oxidation of ammonium sulfite was achieved; at the same time, a secondary ammonia and ammonium salt washing and demisting device was developed to effectively control the escape of ammonia and ammonium salts. The appraisal committee believes that the process equipment is compact, occupies a small area, has a low one-time investment, has no secondary pollution, and the by-product ammonium sulfate can be recycled. The appraisal committee has identified that the research results have reached the international advanced level.