Papermaking alkali black liquor tail gas treatment system and method

The invention is applicable to the technical field of chemical processes, and provides a papermaking alkali black liquor tail gas treatment system and method, the papermaking alkali black liquor tailgas treatment system comprises an electric dust remover and a spray absorption tower which are sequentially communicated, and the inlet of the electric dust remover is communicated with the outlet ofa papermaking alkali black liquor boiler. According to the papermaking alkali black liquor tail gas treatment system provided by the embodiment of the invention, most alkali ash is removed by utilizing the electric dust remover; meanwhile, by utilizing the characteristic that sodium carbonate and sodium sulfide are extremely easy to dissolve in water and adopting empty tower spraying, sodium carbonate and sodium sulfide can be further absorbed, the treatment rate of sodium carbonate and sodium sulfide is increased, sulfur dioxide in the tail gas is removed, and the technical problems that thepapermaking alkali black li