Separation of Small Particles by Diffusio- and Thermophoresis in a Gas-Liquid Cross-Flow Array

摘要

A wet scrubber technique was studied for the separation of particles 2.5m from exhaust gas by a gas-liquid cross-flow array. The cleaning water of the separator flows vertically down along many regularly configured wires and the generated water film acts as an independent sink for particle collection. Due to the surface-orientated horizontal particle movement caused by diffusio- (DP) and thermophoresis (TP), the particles can be captured by the water films. Since wastewater from the same production process can be used, the necessary cleaning water recycling costs can be saved due to the already available water treatment device. Experiments on a laboratory-scale test rig show the particle grade removal efficiency (PGRE) for different inlet gas-water temperature gradients and for a constant vapor injection.