Discussion on two-stage desulfurization adopted in circulating fluidized bed boiler to achieve ultra-low SO_2 emission

The process of circulating fluidized bed desulfurization technology was introduced.The options of desulfurization method of a gangue power plant in northeast of China were analyzed and introduced as an example,and the rationality and feasibility of two-stage desulphurization adopted in circulating fluidized bed boiler to achieve ultra-low SO2 emission were demonstrated.