... void ratio, low pressure drop, low mass-transfer unit height, high flooding point, uniform gas-liquid contact, ... separation, ethylbenzene separation, isooctane separation and desulfurization system etc.We are able to offer these in ... data of Plastic pall ring: Diameter (mm)Dimension d×h×δ (mm)Specific surface area (m2/m3)Void ... 50×1.5930.90127650056Φ7676×76×2.6730.9294193060 Dia.5/8", 1", 1.5", 2", 3" ...