Hydrodynamics and Mass Transfer of Textile Vibrating-Valve Trays

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Journal Title, Volume, Page: 
Chemical Engineering Research and Design Volume 77, Issue 7, Pages 627–632
Year of Publication: 
1999
Authors: 
H. Mustafa
Chemical Engineering Department, An-Najah National University, Nablus, Palestine
Current Affiliation: 
Department of Chemical Engineering, Faculty of Engineering and Informtation Technology, An-Najah National University, Nablus, Palestine
A. Elhamouz
Chemical Engineering Department, An-Najah National University, Nablus, Palestine
E. Békássy-Molnár
Department of Food Engineering, University of Horticulture and Food, Budapest, Hungary
Preferred Abstract (Original): 

New types of vibrating-valve trays with textile valves were investigated to determine their optimal construction. Hydrodynamic and mass transfer measurements were carried out in a pilot plant with different vibrating-valve and conventional valve trays under identical experimental conditions. The total tray pressure drop (ΔP), column efficiency (η), volumetric mass transfer coefficient (KGa) and pressure drop per theoretical tray (Δp/Nth) were measured and compared.The high mass transfer rate, the low investment and operating costs, the corrosion and heat resistance make the vibrating-valve trays attractive for gas absorption and air cleaning in environmental protection.