Separation using a coiled elastomeric membrane

One or more tubular elastomer membranes 2 is enclosed within a coiled flexible shell 1 whose maximum coiled linear dimension is no more than one-tenth of its maximum uncoiled linear dimension, which may be eg 5m - 100m. The coil may have a diameter 30-50 times the shell internal diameter. The membra...

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Bibliographic Details
Main Authors JEAN-PIERRE ARCANGELI, SHENGFU ZHANG, ANDREW TIMOTHY BOAM, ANDREW LIVINGSTON
Format Patent
LanguageEnglish
Published 28.07.1999
Edition6
Subjects
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:One or more tubular elastomer membranes 2 is enclosed within a coiled flexible shell 1 whose maximum coiled linear dimension is no more than one-tenth of its maximum uncoiled linear dimension, which may be eg 5m - 100m. The coil may have a diameter 30-50 times the shell internal diameter. The membrane(s) may bear longitudinal surface ridges (3, Fig 1). The assembly is useful in chemical, especially biological, separations in which the concentration of a component to be transferred across the membrane is small eg less than 2%. First and second fluids, located respectively inside the membrane tube and between the membrane and the shell, may be passed in co-current during the separation; the fluids may be two liquids or a liquid and a gas.
Bibliography:Application Number: GB19980023963