(251e) Effect of humidity on pressure-drop and penetration of a membrane filter during loading with charged and neutralized particles

The electrostatics enhancing particle filtration begins to be used in powder station and waste incineration to clean the flue gas. The humidity of flue gas plays an important role in this technology. It changes the ability of particle charging and the structure of the cake. The Effect of gas humidity on the evolution of pressure-drop and penetration of a membrane filter during loading with charged and neutralized particles has been compared. A novel experimental setup was developed to perform in situ monitoring of pressure drop, aerosol classify concentration. The tested aerosol particle is a kind of fly ash from a power station in China. A laser displacement sensor (Model LK-081/2101, Keyence, Osaka, Japan) was used to in-situ measure the increase of cake thickness with time. The cake mass at a specific was inferred from the measured final cake mass, the total collection time and the mass concentration with ELPI