Larger specific surface area (m2/m3 packing layer)
The liquid has good uniform distribution on the surface of the filler
Air flow can be evenly distributed in the packing layer
The seasoning has a large void ratio (m3/m3 filler layer).
Under the same operating conditions, the larger the specific surface area of the filler, the more uniform the gas-liquid distribution, and the better the surface wettability, the higher the mass transfer efficiency; the greater the porosity of the filler, the more open the structure, the greater the flux The greater the pressure drop, the lower.
Using fuzzy mathematics method to evaluate the performance of nine commonly used fillers, the comprehensive performance of the wire mesh corrugated filler is the best, and the Raschig ring is the worst.
The choice of packing includes determining the type, specification and material of the packing. The selected filler must not only meet the requirements of the production process, but also minimize the equipment investment and operating costs.