Beitrag zur Auslegung pulsierter Siebboden‐Extraktoren (PSE)

Reissinger, Karl‐Hermann; Marr, Rolf

doi:10.1002/cite.330560719

Cited by 7 publications

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“…Fur eine Obertragung der Bo-Zahlen auf andere Kolonnendurchmesser gilt das gleiche wie bei der kontinuierlichen Phase. [24] berichtet. Sie fanden fur den PSE, daR die aus gemessenen Konzentrationsprofilen ruckgerechneten Stoffdurchgangskoeffizienten nur dann richtig beschrieben werden konnen, wenn fur die ,,innere" Sherwood-Zahl der Ansatz von Handlos und Baron [25] fur oszillierende Tropfen gemaR…”

Section: Tropfengroseunclassified

Auslegungskonzept für pulsierte Siebboden‐Extraktoren

Reissinger

Marr

1986

Chemie Ingenieur Technik

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A concept for the design of pulsed sieve‐plate extractors. A concept is presented for the design of pulsed sieve‐plate extractors (PSE) according to which the column diameter is calculated via the flooding load and the column length by concentration profiles using the well known backmixing models. This concept requires some parameters to describe the hydrodynamic and mass transfer behaviour. The parameters depend on physical properties, operating conditions, and extractor geometry and subject to mutual influence. It is now possible to present correlations and models for prediction of these parameters. The mass transfer term can be determined by Sherwood correlations for single drops, using the Sauter mean drop diameter. The total mass transfer coefficient can be given as a function of column lenght. The calculated concentration profiles agree well with the measured profiles and thus the concept is confirmed.

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Section: Tropfengroseunclassified