Results 111 to 120 of about 785 (148)
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Transient behaviour of holdup in a reciprocating plate extraction column
Chemical Engineering Science, 1986Abstract Transfer functions relating the holdup to the intensity of plate reciprocation and to the velocity of the dispersed phase were determined from experiments in a 4m high VPE reciprocating plate solvent extraction column. The system under investigation was toluene dispersed in water without mass transfer between the phases.
Helena Sovová, Antonín Havlíček
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Computer control of holdup in a reciprocating plate extraction column
The Canadian Journal of Chemical Engineering, 1982AbstractThis paper describes the application of computer control to a pilot scale (15 cm diameter) Reciprocating Plate Solvent Extraction Column. The system under investigation was kerosene dispersed in water without mass transfer between the phases. The control objective was the regulation and set point tracking of the holdup of the dispersed phase ...
P. A. Taylor, M. H. I. Baird, I. Kusuma
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Liquid‐liquid extraction in a reciprocating screen plate column
The Canadian Journal of Chemical Engineering, 1991AbstractA novel reciprocating‐plate liquid‐liquid extraction column is proposed. It features a simple design that utilizes as the plates mesh screens with a fractional free area larger than 64%.A hydrodynamic and mass transfer study of the column was carried out in which the existence of a uniform liquid‐liquid dispersion throughout the column at ...
B. H. Chen, C. H. Liu
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Liquid-liquid mass transfer in a reciprocating-plate column
The Chemical Engineering Journal and the Biochemical Engineering Journal, 1994Abstract Liquid-liquid mass transfer has been experimentally studied for the kerosene (dispersed)-water (continuous) system in a reciprocating-plate column, using benzoic acid and n -butyric acid as solutes. The effect of the flow rates of the phases, the agitation rate of the plate stack, the perforation diameter and free area of the plate and the ...
T.L. Harikrishnan +2 more
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Axial mixing of continuous phase in reciprocating plate columns
Chemical Engineering Science, 1984Abstract The residence time distribution of the continuous phase in reciprocating plate columns is experimentally investigated for gas-liquid and liquid-liquid systems and modelled using Gamma function extension of the ideal-stage cascade model. The equivalent number of ideal stages evaluated from the model is related to the flow numbers defined ...
P. Parthasarathy +3 more
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Reciprocating plate extraction column as a cocurrent mixer
AIChE Journal, 1984On montre a l'aide de resultats experimentaux les avantages d'une colonne d'extraction a plateau alternatif employee comme melangeur ...
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Effect of Plate Material on Dispersed-Phase Holdup in a Karr Reciprocating Plate Column
Solvent Extraction and Ion Exchange, 2011Abstract The effect of plate material on the dispersed-phase holdup in a Karr reciprocating plate column is studied. Existing models cannot predict the observed degradation of the performance of plates as they foul. Experimental data of dispersed-phase holdup have been obtained for a 10 vol% tributyl phosphate/kerosene-phenol-water system in a 50 mm ...
Ravi Christo +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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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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Power dissipation and flow patterns in reciprocating baffle‐plate columns
The Canadian Journal of Chemical Engineering, 1995AbstractTime‐averaged power dissipation rates have been measured in water in a 19.4 cm diameter reciprocating plate column operating at frequencies 0.6 to 3 Hz and amplitudes 5 to 20 mm. Measurements were also taken in water in a 15 cm diameter column operated at 1 to 5.7 Hz with amplitudes 1 to 10 mm.
M. H. I. Baird, N. V. Rama Rao
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