Results 141 to 150 of about 841 (170)
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Flooding and axial dispersion in reciprocating plate extraction columns
The Canadian Journal of Chemical Engineering, 1979AbstractThe flooding and axial mixing characteristics of a 15 cm diameter reciprocating plate extraction column with six different plate arrangements handling kerosene dispersed in water are reported. A general correlation for flooding in the emulsion flow regime is developed and applied to the present results and to published data on other columns and
M. M. Hafez, M. H. I. Baird, I. Nirdosh
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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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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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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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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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A correlation for drop size and slip velocity in reciprocating plate column
Bioprocess Engineering, 1998Drop size distributions, mean drop diameter and slip velocity are experimentally studied in a reciprocating plate column. The correlations for the above are presented in terms of plate geometry, flow rates of phases and physical properties of the system covering a wide range in experimental conditions.
S. Joseph, Y. B. G. Varma
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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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