2014
DOI: 10.1080/00194506.2014.910707
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Hydrodynamics of a Pulsed Sieve Plate Extraction Column

Abstract: Hydrodynamic characteristics, such as drop size, dispersed phase hold-up and flooding have been studied experimentally in a pulsed sieve plate extraction column of 0.076 m diameter. Geometrical parameters like perforation diameter, plate spacing and fractional free area (FFA) of sieve plate and operating parameters, such as pulse velocity and superficial velocities of dispersed and continuous phase, were studied using kerosenewater system. The drop size was reduced with decrease in perforation diameter, plate … Show more

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Cited by 7 publications
(8 citation statements)
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“…This pulsation provides high levels of turbulence, which assists in droplet breakage. Consequently, a large interfacial area is generated, which leads to high mass transfer coefficient values [3].…”
Section: Introductionmentioning
confidence: 99%
“…This pulsation provides high levels of turbulence, which assists in droplet breakage. Consequently, a large interfacial area is generated, which leads to high mass transfer coefficient values [3].…”
Section: Introductionmentioning
confidence: 99%
“…Vrednosti hidrodinamičkih parametara, kao što su prečnik kapi, sadržaj dispergovane faze i brzina plavljenja su ispitivane i u PEPP koloni prečnika od 7,6 cm [29]. Geometrijski parametri kolone (prečnik otvora na podu, ukupna i slobodna površina poda) i radni parametri (brzina pulzacije i površinska brzina kontinualne faze) su određivani u dvofaznom sistemu kerozin-voda.…”
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“…S druge strane, ispitivan je uticaj radnih parametara na efikasnost ekstrakcije u PEPP koloni. U radu [29] je konstantovano da je sadržaj dispergovane faze funkcija prečnika kapi i površinske brzine dispergovane faze. Pri vrednosti brzine pulzacije od 25 mm s -1 , na liniji plavljenja dobijen je paraboličan oblik zavisnosti sa maksimumom na prelazu iz režima mešača-odvajača u disperzioni režim [29].…”
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