Abstract: The present invention relates to a system and a process for storing and releasing heat comprising at least one bed of particles (2) for storing heat. The system also comprises, at each end of the fixed bed, a means for thermal regulation of the particles (5). Moreover, the invention relates to a system and a process for storing and recovering energy by compressed gas utilizing such a system for storing and releasing heat.

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 invention relates to a system and a method for heat storage and recovery comprising a fixed bed (2) of storage particles. Fixed particle bed (2) comprises an obstacle (4), a flange for example, arranged on the periphery of fixed bed (2) of storage particles, and substantially perpendicular to the circulating flow (3) of said fluid. The invention also relates to a system and a method for energy storage and recovery using the system and the method for heat storage and recovery.

Abstract: The present invention concerns a device for filtration and distribution of a gaseous phase and a liquid phase, which can be disposed upstream of a fixed catalytic bed of a reactor operating with a descending co-current of gas and liquid, comprising: a solid plate on which substantially vertical risers are fixed, said risers are open at their upper and lower ends and have openings over at least a fraction of their height; a plurality of removable baskets capable of retaining at least one filtration medium, each removable basket being defined by an ellipsoidal vertical wall or by at least three vertical lateral walls and a bottom, the vertical walls and/or the bottom being permeable to a gas and to liquid. Each basket is provided support means cooperating with a riser of the plate in order to support the basket.

Abstract: The present invention concerns a device for filtration and distribution of a gaseous phase and a liquid phase, which can be disposed upstream of a fixed catalytic bed of a reactor operating with a descending co-current of gas and liquid, comprising: a solid plate on which substantially vertical risers are fixed, said risers are open at their upper and lower ends and have openings over at least a fraction of their height; a plurality of removable baskets capable of retaining at least one filtration medium, each removable basket being defined by an ellipsoidal vertical wall or by at least three vertical lateral walls and a bottom, the vertical walls and/or the bottom being permeable to a gas and to liquid. Each basket is provided support means cooperating with a riser of the plate in order to support the basket.

Abstract: Catalytic reactor (10) with radial flow of a hydrocarbon feedstock to be treated comprising: a reaction zone (13) enclosed in a substantially cylindrical outer shell (14) that is in the form of at least one catalytic module (15) extending along the vertical axis (AX), an annular zone (30) located at the same level as said catalytic module (15), outside of the reaction zone (13), said catalytic reactor being characterized in that it comprises an empty space (27) located between two side walls (23, 24) of at least one catalytic module (15), located outside of the reaction zone (13) and opening onto said annular zone (30), said empty space (27) comprising at least one solid net (26) extending along the vertical axis (AX) and positioned adjacent to the collecting means (29).

Abstract: The present invention relates to a removable basket for a catalytic reactor comprising a horizontal base (1) and a plurality of vertical side walls (2) and/or at least one ellipsoidal side wall, and a plurality of vertical chimneys (3, 4) that are open at their lower (5) and upper (6) ends, each chimney comprising a lower part (7) comprising the lower end fastened to the base and extending between the side walls, in which a first chimney comprises an upper part (8) extending above the side walls, and the upper part of the first chimney is suitable for being inserted into a lower part of a chimney of another removable basket. The present invention also relates to a filtration and distribution device comprising said removable basket, a reactor comprising said device, and a hydrotreating and/or hydrocracking process using said reactor.

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: Catalytic reactor (10) with radial flow of a hydrocarbon feedstock to be treated comprising: a reaction zone (13) enclosed in a substantially cylindrical outer shell (14) that is in the form of at least one catalytic module (15) extending along the vertical axis (AX), an annular zone (30) located at the same level as said catalytic module (15), outside of the reaction zone (13), said catalytic reactor being characterized in that it comprises an empty space (27) located between two side walls (23, 24) of at least one catalytic module (15), located outside of the reaction zone (13) and opening onto said annular zone (30), said empty space (27) comprising at least one solid net (26) extending along the vertical axis (AX) and positioned adjacent to the collecting means (29).

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: This invention describes a moving-bed catalyst reactor having radial flow of the feedstock called moving-bed radial reactor, consisting of 3 zones called upper hemispheric body (III), lateral zone (II), and lower hemispheric body (I), the three zones being connected together by means of flanges.

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 invention concerns a collector assembly (8) for a gaseous fluid suitable for being disposed in a reaction section with a moving bed of catalyst of a radial reactor. The collector assembly comprises a vertical cylindrical screen (9), permeable to gas and impermeable to particles of catalyst, and a vertical cylindrical tube (10) which is supported by this screen (9) and disposed in a concentric manner with respect to the screen. The tube (10) comprises one or more zones (17a, 17b) which are permeable to gaseous fluid, comprising a plurality of through holes and a plurality of zones (18a, 18b, 18c, 18d) with a reduced permeability to gaseous fluid compared with the permeable zone. Each zone with a reduced permeability has a porosity, defined as the ratio between total permeable surface area of the zone and total developed surface area of this zone, in the range 0 to 0.005.

Abstract: The invention comprises at least one gas compressor, at least one compressed gas storage, at least one expander for expanding the compressed gas for generating energy, and at least one heat storage, wherein the heat storage comprises a staged arrangement at least two fixed beds of heat storage particles and at least one discontinuity in a thermal gradient located between two adjacent beds.

Abstract: The present invention relates to a removable basket for a catalytic reactor comprising a horizontal base (1) and a plurality of vertical side walls (2) and/or at least one ellipsoidal side wall, and a plurality of vertical chimneys (3, 4) that are open at their lower (5) and upper (6) ends, each chimney comprising a lower part (7) comprising the lower end fastened to the base and extending between the side walls, in which a first chimney comprises an upper part (8) extending above the side walls, and the upper part of the first chimney is suitable for being inserted into a lower part of a chimney of another removable basket. The present invention also relates to a filtration and distribution device comprising said removable basket, a reactor comprising said device, and a hydrotreating and/or hydrocracking process using said reactor.

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: The invention is a distributor tray (2) of a column for heating and/or material exchanging material between a gas and a liquid, comprising gas passage casings (4), liquid passages (6) and a secondary distribution system (7) projecting from the lower part of tray (2). Secondary distribution system (7) allows the liquid to be collected and distributed more homogeneously over the contactor. The invention also relates to a gas/fluid heat or material exchange column comprising such a distributor tray.

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.