Flooding rates and holdup in packed liquid--liquid extraction columns

Journal Article · Sat Nov 01 04:00:00 EST 1975 · AIChE J.; (United States)

DOI:https://doi.org/10.1002/aic.690210606· OSTI ID:7366984

Watson, J S; McNeese, L E; Day, J; Carroad, P A

Countercurrent flow of liquids in columns packed with Raschig rings was studied with fluids having a wide range of physical properties. These results, along with data reported previously from other studies, were used to develop a correlation for predicting flooding rates in packed columns that is significantly better than previous correlations. Dispersed phase holdup in packed columns can be estimated over a wide range of flow rates or flow ratio by assuming a constant slip velocity between the two phases which is dependent on the properties of the fluids and packing used. Although the slip velocity is thus essentially constant at flow rates below flooding, the flooding rate correlation indicates that this term is not necessarily constant at flooding conditions. (auth)

• Research Organization: Oak Ridge National Lab., TN
• OSTI ID: 7366984
• Journal Information: AIChE J.; (United States), Journal Name: AIChE J.; (United States) Vol. 21:6; ISSN AICEA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ALCOHOLS
COLUMN PACKING
COUNTER CURRENT
ELEMENTS
EXTRACTION
EXTRACTION APPARATUSES
EXTRACTION COLUMNS
FLUID FLOW
FLUID MECHANICS
FLUIDS
GLYCEROL
HYDRODYNAMICS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
LIQUIDS
MECHANICS
MERCURY
METALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PACKINGS
SEPARATION PROCESSES
SOLVENT EXTRACTION
WATER