Abstract: A distributor tray (100) for a column for contact between a gas (G) and a liquid (L) is provided wherein the distributor tray has a plurality of compartments defined on one face of the tray by secant partitions (104) which are perforated (105) to allow the flow of liquid between adjacent compartments. Each compartment includes at least one passage of the liquid through the tray or a chimney (102) projecting from the tray for the exclusive passage of the gas (G) through the tray. The shape of the chimney is identical to the shape of the compartment containing it, and the chimney has an internal volume at least equal to the volume of the compartment containing it.

Abstract: Fluid mixing and distribution device for a downflow catalytic reactor, the said device comprising a mixing zone comprising at least one fluid-mixing space of length L1? and a fluid-exchange space of length L2?, situated underneath and superposed with said mixing space, it being understood that the length L2? of the said exchange space is strictly greater than the length L1? of the said mixing space so as to create a roof at the level of the said exchange space, the said roof comprising at least one longitudinal opening suited to the passage of the following its from the said exchange space to the said distribution zone.

Abstract: Fluid mixing and distribution device for a downflow catalytic reactor, the said device comprising a mixing zone comprising at least one fluid-mixing space of length L1? and a fluid-exchange space of length L2?, situated underneath and superposed with said mixing space, it being understood that the length L2? of the said exchange space is strictly greater than the length L1? of the said mixing space so as to create a roof at the level of the said exchange space, the said roof comprising at least one longitudinal opening suited to the passage of the following its from the said exchange space to the said distribution zone.

Abstract: The present invention relates to a distributor tray (1) comprising chimneys (2) for the passage of gas and means for the passage of liquid. The distributor tray furthermore has at least one casing (10) for distributing the gas. The casing (10) is arranged around a plurality of chimneys (2), and has gas remixing means and gas redistribution means.

Abstract: The present invention relates to a gas-redirecting device presenting an upper plane and a plurality of gas-redirecting tubes comprising an inlet end and an outlet end. For each gas-redirecting tube, the orthogonal projections of the inlet end and the outlet end onto the upper plane have an over-lapping area of at most 50% of the total area of the upper plane covered by the orthogonal projections. Also provided is a liquid-gas contacting column comprising a gas-redirecting device, a floating support comprising a liquid-gas contacting column, at least two packed beds and a method for improving the efficiency of a liquid-gas contacting column which is based on redirecting the gas from a wetted zone of a lower packed bed to a wetted zone of the higher packed bed.

Abstract: The invention relates to a distributor tray (100) for a column for contact between a gas (G) and a liquid (L), comprising a plurality of compartments defined on one face of the tray by secant partitions (104) which are perforated (105) to allow the flow of liquid between adjacent compartments. Each compartment comprises at least one means for the passage of the liquid through the tray or a chimney (102) projecting from the tray for the exclusive passage of said gas (G) through the tray. The shape of the chimney is identical to the shape of the compartment containing it, and the chimney has an internal volume at least equal to the volume of the compartment containing it.

Abstract: A device for mixing fluids for a downflow catalytic reactor (1), having at least one substantially horizontal collector (5) provided with a substantially vertical collection conduit (7) receiving fluids collected by said collector (5); an injector (8) injecting a quench fluid opening into said collection conduit (7); a mixing chamber (9) located downstream of the collector (5) in the direction of movement of the fluids, having an inlet end connected directly to the collection conduit (7) and an outlet end (10) evacuating the fluids; and a pre-distribution plate (11) having a plurality of perforations and at least one riser (13), being located downstream of said mixing chamber (9) in the direction of movement of the fluids; the section of the mixing chamber (9) is a parallelogram and has at least one deflector (15) over at least one of the four internal walls of the mixing chamber (9) with a parallelogram section.

Abstract: Device for mixing and distributing fluids for a downflow catalytic reactor, comprising: a collecting zone (A) comprising a collecting means (5); a substantially vertical collecting pipe and at least one injection means (8) opening into said collecting pipe; a mixing zone (B) comprising a fluid mixing chamber (15) of length L1, said mixing zone (15) comprising a first end in communication with said collecting pipe and a second end in communication with a fluid exchange chamber (16) of length L2, situated beneath said mixing chamber (15), the length L2 of said exchange chamber (16) being strictly greater than the length L1 of said mixing chamber (15); a distribution zone (C), situated beneath the mixing zone (B), comprising a distribution plate (12) that carries a plurality of chimneys (13), and a plurality of horizontal panels (33), situated above or on the chimneys (13).

Abstract: The present invention relates to a column (CO) for the exchange of material and, if appropriate, heat between a gas and a liquid. The exchange column (CO) comprises at least one collector tray and a system for distributing liquid arranged between two packing beds (7), and means for recirculating the liquid (8). The means for recirculating the liquid (8) connect a zone situated below the packing bed (7) to a zone situated above the distributor tray.

Abstract: Device for mixing and distributing fluids for a downflow catalytic reactor, comprising: a collecting zone (A) comprising a collecting means (5); a substantially vertical collecting pipe and at least one injection means (8) opening into said collecting pipe; a mixing zone (B) comprising a fluid mixing chamber (15) of length L1, said mixing zone (15) comprising a first end in communication with said collecting pipe and a second end in communication with a fluid exchange chamber (16) of length L2, situated beneath said mixing chamber (15), the length L2 of said exchange chamber (16) being strictly greater than the length L1 of said mixing chamber (15); a distribution zone (C), situated beneath the mixing zone (B), comprising a distribution plate (12) that carries a plurality of chimneys (13), and a plurality of horizontal panels (33), situated above or on the chimneys (13).

Abstract: The present invention relates to a liquid-gas contacting unit comprising a column, at least a lower packed bed and a higher packed bed positioned higher than the lower packed bed inside the column, a gas-tight liquid collecting and redistributing device disposed between the lower and the higher packed bed inside the column and an external pipe outside the column, the external pipe comprising an inlet end, an outlet end and a peripheral wall between the inlet end and the outlet end; the inlet end being positioned between the lower pack bed and the gas-tight liquid collecting and redistributing device and the outlet end being positioned between the higher pack bed and the gas-tight liquid collecting and redistributing device. The present invention also relates to a method for improving the efficiency of a liquid-gas contacting unit.

Abstract: The present invention relates to a gas-redirecting device presenting an upper plane and a plurality of gas-redirecting tubes comprising an inlet end and an outlet end. For each gas-redirecting tube, the orthogonal projections of the inlet end and the outlet end onto the upper plane have an over-lapping area of at most 50% of the total area of the upper plane covered by the orthogonal projections. Also provided is a liquid-gas contacting column comprising a gas-redirecting device, a floating support comprising a liquid-gas contacting column, at least two packed beds and a method for improving the efficiency of a liquid-gas contacting column which is based on redirecting the gas from a wetted zone of a lower packed bed to a wetted zone of the higher packed bed.

Abstract: The present invention relates to a column for exchanging material and, if appropriate, heat between a gas and a liquid. The column comprises at least one collector tray 1 and a liquid distribution system 5, 6 arranged between two packed beds 7, and gas and liquid separation means 8. The present invention proposes arranging gas and liquid separation means 8 between the collector tray 4 and the liquid distribution means 5, 6.

Abstract: The present invention relates to a column for exchanging heat and/or material between a gas and a liquid. The column comprises at least one collector tray (1), at least one packed bed, and mixing means for a gas flow (7, 8). According to the invention, the mixing means for a gas flow are arranged below the collector tray (1) and above the packing.

Abstract: A fluid mixing and distribution device for a catalytic downflow reactor, said device comprising a collection zone (A), a mixing zone (B) comprising a mixing chamber (15) for fluids and an exchange chamber (16) for fluids, a distribution zone (C), said exchange chamber (16) comprising at least one upper lateral cross-section of flow (17a) and at least one lower lateral cross-section of flow (17b) through which fluids can pass from said exchange chamber (16) to said distribution zone (C), characterized in that said exchange chamber (16) comprises a fluid deflection means (24) fixed to said exchange chamber (16) and located downstream of the upper lateral cross-section of flow (17a), said fluid deflection means (24) forming with said exchange chamber (16) a space (26) in the shape of a pan.

Abstract: Device for the mixing and distribution of fluids for a catalytic reactor with a downward flow, said device comprising a collection zone (A), a mixing zone (B) and a distribution zone (C) comprising a distribution plate (12) comprising at least one first zone (C1) supporting a plurality of chimneys (13) and a second zone (C2); said mixing zone (B) is comprised in an annular enclosure (15) situated in the distribution zone (C), said mixing (B) and distribution (C) zones being delimited by at least one annular wall (16) comprising at least one lateral passage section (17a, 17b) suitable for the passage of the fluids from said mixing zone (B) to the first zone (C1) of said distribution zone (C), and the second zone (C2) comprises a plurality of openings (18) suitable for the partial passage of the fluids out of the distribution zone (C).

Abstract: A device for mixing and distributing fluids for a downward flow catalytic reactor, said device comprising: a collection zone comprising at least one collection means; at least one substantially vertical collection conduit adapted to receive a reaction fluid collected by said collection means and at least one injection means; a mixing zone; and a distribution zone comprising a distribution plate supporting a plurality of chimneys; characterised in that said mixing zone is disposed at the same level as the distribution zone, said mixing and distribution zones being delimited by at least one annular wall comprising at least one lateral passage section adapted for the passage of the fluids from said mixing zone to said distribution zone.

Abstract: A fluid mixing and distribution device for a catalytic downflow reactor, said device comprising a collection zone (A), a mixing zone (B) comprising a mixing chamber (15) for fluids and an exchange chamber (16) for fluids, a distribution zone (C), said exchange chamber (16) comprising at least one upper lateral cross-section of flow (17a) and at least one lower lateral cross-section of flow (17b) through which fluids can pass from said exchange chamber (16) to said distribution zone (C), characterized in that said exchange chamber (16) comprises a fluid deflection means (24) fixed to said exchange chamber (16) and located downstream of the upper lateral cross-section of flow (17a), said fluid deflection means (24) forming with said exchange chamber (16) a space (26) in the shape of a pan.

Abstract: A device for mixing fluids for a downflow catalytic reactor (1): at least one substantially horizontal collector (5) provided with a substantially vertical collection conduit (7) receiving fluids collected by (5); at least one injector (8) of a quench fluid opening into (7); a mixing chamber (9) downstream of (5) having an inlet end connected directly to (7) and an outlet end (10) evacuating the fluids; and a pre-distribution plate (11) having a plurality of perforations and at least one riser (13), located downstream of (9); the section of said mixing chamber (9) is a parallelogram and has at least one means (15) deflecting over at least one of the four internal walls of mixing chamber (9) with a parallelogram section.

Abstract: Device for the mixing and distribution of fluids for a catalytic reactor with a downward flow, said device comprising at least one collection zone (A), at least one mixing zone (B) comprising at least one enclosure (15) for the mixing of the fluids, at least one distribution zone (C), characterized in that said mixing zone (B) is situated at the same level as the distribution zone (C) and also comprises at least one enclosure (16) for the exchange of the fluids, connected to, and communicating with, said mixing enclosure (15), said exchange enclosure (16) comprising at least one lateral passage section (17a, 17b) suitable for the passage of the fluids from said exchange enclosure (16) to said distribution zone (C).