Coupling of Electrolytic Solution in Wet Electrostatic Scrubbers for Removing Liquid Aerosols
摘要
This study delineates the lab-scale experiments that were conducted to determine the abatement rate of liquid aerosol using electrospray. The main objective of this work was to couple the electric field with a highly conducting electrolytic solution for aerosol removal which helps to study detailed capturing mechanisms in wet electrostatic scrubbing. In this study, the electrolytic solutions with five different concentrations were prepared using potassium salt and the electrospray was generated using pin-ring electrode configuration. A diethyl hexyl sebacate (DEHS) solution was used for generating the aerosols. The findings of this study demonstrated that highly conducting electrolytic solution for electrospray marginally accelerated the scavenging of particles. It was determined for the larger size particles (750 nm–1 micron), the maximum scavenging efficiency was around 70% and for particles with a size range of 450 nm–750 nm, the maximum scavenging efficiency was around 50%. The particles whose size was in the range of 10–400 nm, these particles are non-removable using electrospray. Also, through experimental data, the theoretical collision efficiency was analyzed. It was found that due to the electrostatic force of attraction, the collision efficiency of the particles is much higher compared to other mechanisms.