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Mass Transfer Performance in Karr Reciprocating Plate Extraction Columns
Industrial & Engineering Chemistry Research, 2008A study of the hydrodynamic and mass transfer performance for Karr reciprocating plate extraction columns has been presented for a range of operating conditions and column diameters of 50, 100, and 450 mm. Although the use of Karr columns has been widespread for many years for a range of important applications, the need for more reliable methods for ...
Angela Stella +4 more
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Performance and Scale-up of Karr Reciprocating Plate Extraction Columns
Industrial & Engineering Chemistry Research, 2008The hydrodynamic and mass transfer performance of Karr reciprocating plate extraction columns with varying column diameters has been presented in order to examine how column performance changes with scale. An ideal liquid system of kerosene/tributyl phosphate−phenol−water was initially studied using a 50 mm diameter Karr column.
Kathryn H. Smith +2 more
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Gas holdup in a gas-liquid-solid reciprocating plate column
The Canadian Journal of Chemical Engineering, 1993The presence of solid particles at lower contents (up to 6% by volume) caused an increase in the gas holdup in the three-phase reciprocating plate column, compared to that in the two phase (gas-liquid) column of the same type, under the same other operating conditions. The decrease in the gas holdup, which was normally observed in the two-phase column,
D. U. Skala +4 more
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Apparent and true longitudinal concentration profiles in reciprocating plate column
Bioprocess Engineering, 1993Mass transfer for kerosene-water system with benzoic acid and n-butyric acid as solutes has been studied in a reciprocating plate column at different operating conditions including the agitation rate of the plate stack, the plate geometry, the flow rates of the phases and the direction of mass transfer.
T. L. Harikrishnan +2 more
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Break-up of droplets in Karr reciprocating plate extraction column
Chemical Engineering Science, 1987Abstract The breaking rate of individual drops was investigated in a Karr type reciprocating plate extraction column. The binary systems used were: water-1,2-dichloroethane, water-toluene and water- n -butanol. The breakage probability and the conditional probability of breaking-up into a given number of daughter droplets, as well as the drop size ...
J. Jareš, J. Procházka
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Gas liquid contacting in reciprocating plate columns: I. hydrodynamics
The Canadian Journal of Chemical Engineering, 1991AbstractThe hydrodynamic characteristics of a 10‐cm reciprocating plate column used for counter‐current gas‐liquid contacting was investigated. The values of gas holdup, interfacial area and maximum throughputs achievable in this unit put it in a favourable position in comparison with other types of contactors.
H. G. Gomaa, J. Landau, A. M. Al Taweel
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Hydrodynamic investigations of gas–liquid contacting in a reciprocating plate column
The Canadian Journal of Chemical Engineering, 1986AbstractThe maximum pressure variation at the bottom of a reciprocating plate column of the Karr type was investigated in single phase liquid and two phase gas–liquid systems. In the gas–liquid system the gas hold‐up was also measured. The power consumption was calculated on the basis of the pressure variation at the bottom of the column.It was shown ...
Vlada VeljkoviC, Dejan Skala
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Back mixing in a reciprocating plate column with stable density gradients
AIChE Journal, 1998AbstractAxial dispersion coeficients were measured in an aqueous phase flowing downward through a 5.08‐cm‐dia. Karr‐type reciprocating plate column. The steady tracer injection method was used, in which the concentration profile was measured upstream of tracer injection.
Nadella V. Rama Rao, Malcolm H. I. Baird
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Gas—liquid pressure drop studies in a reciprocating plate column
The Canadian Journal of Chemical Engineering, 1986AbstractTwo‐phase pressure drop in a 93 mm diameter reciprocating plate column (RPC) was studied for the air‐water system, and to a lesser extent for air‐kerosene. Amplitudes (strokes) in the range 14 to 63.5 mm and frequencies from 0.75 to 4.0 Hz were investigated for between 2 and 10 brass plates with hole diameters from 3 to 8 mm and free flow area ...
N. V. Rama Rao, M. H. I. Baird
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Cocurrent Extraction in a Reciprocating Plate Column
1981Master of Engineering (ME)
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