Ifp Energies Nouvelles

Rim Brahem

Thierry Gauthier

Ludovic Raynal

Benjamin Amblard

Ann Cloupet

Yacine Haroun

Pascal Alix

John Roesler

The present invention describes a packing with a three-dimensional structure which is particularly suited to creating homogenous and anisotropic mixing between the gas phase and a dispersed solid phase moving in counter-current flow. Application of this packing to the stripper of fluidized catalytic cracking units.

Three dimensional structured packing for improving the contact between a gas phase and a dispersed solid phase following in counter-current

The present invention describes a packing with a three-dimensional structure which is particularly suited to creating homogenous and anisotropic mixing between a gas phase and a dispersed solid phase moving in counter-current flow. Application of this packing to the stripper of fluidized catalytic cracking units.

Packing for improving contact between a gas phase and a dispersed solid phase moving in counter-current flow

A gas-distributing tray () and a column for exchange of heat and/or of material between a gas and a liquid containing the tray, and use of the tray, the tray having several protruding chimneys () which are substantially parallelepipedal and parallel to one another over a portion () of the upper face of the tray for the exclusive passage of the gas (g) through the tray and a zone for collecting the liquid () having two diametrically opposite weirs () for collecting the liquid (l) on the tray. The chimneys each have an element for distribution of the gas () partially overlapping the zone for collecting the liquid.

Gas-distributing tray for the bottom of a gas/liquid contact column comprising a zone for collecting liquid partially overlapped by gas chimneys

The invention is a trayfor a column for heat and/or matter exchange between a gas and a liquid, comprising at least one chimneyprojecting from the upper part of trayfor exclusive passage of the gas through the tray, at least one meansenabling passage of the liquid through trayand the inside of at least one of the chimneys providing exclusive gas passage being provided with a material dispersive towards said gas. The invention also relates to an exchange column comprising such a distributor tray and to the use of such a column.

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Lyons, France

Rim Brahem