How to choose flue gas desulfurization technology
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How to choose flue gas desulfurization technologies? Which technologies are mature and environmentally friendly?； Is the ammonia method the best choice? Please share your thoughts based on actual operational experience.
Magnesium oxide is effective for desulfurization
Generally, the lime-gypsum method achieves the highest desulfurization efficiency of 99% and is the most mature approach; the dry desulfurization method has an efficiency of 95%. To meet ultra-low emission standards, high requirements are placed on desulfurization within the furnace, with emission levels needing to be below 800. The ammonia-based desulfurization method involves issues such as ammonia escape and aerosols, which can cause significant corrosion to chimneys, thus imposing high demands on chimney design