Peripheral distribution or collection system for a simulated moving bed separation method using N columns in series
AssigneeIfp Energies Nouvelles
InventorsFrederic Augier, Aude Royon-Lebeaud, Damien Leinekugel Le Cocq, Alexandre Vonner
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Abstract
The present invention describes a device for distributing incoming fluid or for collecting fluid being discharged from a column forming part of an assembly of N columns in series intended to be used in a simulated moving bed separation process. The present device can be used to very substantially reduce the non-selective volumes at each column, while at the same time providing the flow with good synchronicity.
Claims10
A device for distributing fluid entering a column provided with a bed of adsorbent granular solid, said column forming part of a series of N columns disposed in series, in which device the distribution of fluid entering at the level of a column is carried out by means of a plurality of peripheral conduits (2) which are distributed evenly at the periphery of the column, connected to a single substantially central supply conduit (1), each peripheral conduit (2) supplying the distribution channel (3) followed downstream by a screen (4), the fluid flowing inside the granular bed (5) in a substantially vertical direction, the discharged fluid being collected from the collection channel (7) by means of a single conduit (11) which is substantially centred on the vertical axis of the column, the throughput velocity of the fluid entering the peripheral conduits (2) being in the range 1 to 6 m/s, and the flow of fluid in the column being axial, i.e. along the vertical axis of the column, the number of columns N in series being in the range 4 to 24, and preferably in the range 6 to 15, and the number of peripheral conduits (2) being between 4 and 20.
A device for distributing fluid entering a column provided with a bed of adsorbent granular solid, said column forming part of a series of N columns disposed in series, in which device the distribution of fluid entering at the level of a column is carried out by means of a plurality of peripheral conduits (2) which are distributed evenly at the periphery of the column, connected to a single substantially central supply conduit (1), each peripheral conduit (2) supplying the distribution channel (3) followed downstream by a screen (4), the fluid flowing inside the granular bed (5) in a radial direction, from the periphery towards the centre of the column, and the throughput velocity of the fluid entering the peripheral conduits (2) being in the range 1 to 6 m/s, and the number of columns N in series being in the range 4 to 24, and preferably in the range 6 to 15, and the number of peripheral conduits (2) being between 4 and 20.
Dependencies are inferred from the claim text.