METHOD FOR CONTROLLING AEROSOL PRODUCTION DURING ABSORPTION IN AMMONIA DESULFURIZATION

摘要

The present invention relates to an apparatus and a method for controlling aerosol production during absorption in ammonia desulfurization, by removing sulfur dioxide in flue gas with an absorption circulation liquid containing ammonium sulfite, so as to remove the aerosol production during absorption in ammonia desulfurization. Efficient desulfurization and dust removal may be achieved by staged solution composition control and reaction condition control. At the same time, ammonia escape and aerosol production during absorption may be controlled. A flue gas may be subjected to preliminary temperature lowering and purification, and may be allowed to contact with an absorption circulation liquid and a fine particle washing circulation liquid sequentially. Levels of solution compositions and reaction temperatures may be controlled.