Computational fluid dynamics(CFD)method was used to numerically simulate the flow field of gas and liquid in different types of vane demister.The effects of gas velocity

blade spacing and droplet diameter on demisting efficiency and pressure loss were investigated.The results show that the demisting efficiency increases with the droplet diameter and gas velocity while decreases with the increasing mist eliminator(ME)plate space.The wave-plate ME has the lowest demisting efficiency

but its pressure loss is also the smallest.Then is the baffle-plate

and wave-plate ME with drainage channels and two row drainage channels has the highest demisting efficiency and the most great pressure loss.The wave-plate with large space is suitable for the first ME to control the inlet droplet concentration of the second ME.The waveplate with small space is suitable for the second ME to control the total droplet emission of the entire spray tower.