关键词: 烟气脱硫, 钠法烟气脱硫, 脱硫容量

Abstract: The mechanism of flue gas desulfurization by sodium process is studied by using the principles of ion balance, charge balance and element balance. And the relevant mathematical models are established. The concepts of desulfurization capacity of absorption liquid and unit desulfurization capacity are put forward. This paper analyzes the effects of PH value of absorption liquid, liquid gas ratio of absorption liquid to flue gas, carbonate capacity in absorption liquid, SO2 concentration in flue gas and sulfite capacity in absorption liquid on unit desulfurization capacity and desulfurization efficiency. It explains the influence mechanism. According to the research conclusions, the paper puts forward the direction of further optimization of sodium desulfurization technology.

Key words: flue gas desulfurization, flue gas desulfurization by sodium process, desulfurization capacity