Hydrodynamics and mass transfer of textile vibrating-valve trays

New types of vibrating-valve trays with textile valves were investigated to determine their optimal construction. Hydrodynamic and mass transfer measu rements were carried out in a pilot plant with different vibrating-valve an d conventional valve trays ew types of vibrating-valve trays with textile v alves were investigated to determine under identical experimental condition s. The total tray pressure drop (Delta(p)), column efficiency (eta), volume tric mass transfer coefficient (K(G)a) and pressure drop per theoretical tr ay (Delta p/N-th) were measured and compared. The high mass transfer rate, the low investment and operating costs, the co rrosion and heat resistance make the vibrating-valve trays attractive for g as absorption and air cleaning in environmental protection.