A absorption tower was investigated experimentally for the typical WFGD process. The effects of operation conditions(such as flow velocity inside the tower

liquid-gas ratio and dust mass concentration at the system inlet) and major component layout on removal of the ducts were investigated. The results show that

the gas velocity and dust mass concentration at the system inlet do have influence on the dust removal rate

and the effect range is within 7%. As the major component inside the absorption tower

the spraying layer's layout and operation condition have great influence on the dust removal efficiency. When 5 spray layers were opened

the dust removal efficiency reached close to 100%. The effect of tray on the dust removal efficiency is determined by the height of the installation and the operation of the spraying layer

and the installation height is inversely proportional to the dust removal efficiency.