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Hydrodynamics and Mass Transfer of Textile Vibrating-Valve Trays

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Tue, 2013-02-19 17:19 — Amer M EL-Hamouz
Journal Title, Volume, Page: 
Trans IChemE, vol. 77, part A, 627, (1999).
Year of Publication: 
1999
Link: 
http://www.sciencedirect.com/science/article/pii/S0263876299718332
Authors: 
A. Elhamouz
Chemical Engineering Department, An-Najah National Uni V ersity, P.O. Box 7, Nablus, Palestine
Current Affiliation: 
Chemical Engineering Department, An-Najah National Uni V ersity, P.O. Box 7, Nablus, Palestine
[email protected]
H. Mustafa
Chemical Engineering Department, An-Najah National Uni V ersity, P.O. Box 7, 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.