Abstract: A vaccine formation and delivery system includes a first chamber configured to store a live virus and a second chamber for storing an inactivated virus. The system further includes a UV radiation means used for irradiating the live virus. Personal dosage transfer chambers and a delivery system configured to attach to the personal dosage transfer chambers for delivering an inactive virus to a user.

Abstract: A liquid distribution assembly includes a plate to collect liquid and a plurality of liquid distributors coupled to the plate. Each liquid distributor of the plurality of liquid distributors includes a conduit extending down from the plate. Liquid is to flow internal to the conduit from the plate. Each liquid distributor also includes a dome coupled to the conduit at an end of the conduit distal from the plate. The conduit defines openings disposed where the dome is coupled to the conduit permitting the liquid to flow from the conduit to the dome. The liquid is to flow over an edge of the dome.

Abstract: The invention relates to a packing assembly for a material exchange column, comprising at least one structured packing plate and a container in which the at least one structured packing plate is arranged. The at least one structured packing plate has packing packets. Each packing packet has interconnected packing sheets. The packing sheets are corrugated and have corrugation peaks and corrugation valleys. Adjacent packing sheets contact each other at the corrugation peaks. Additional corrugated packing sheets are added between the packing packets such that the at least one packing plate is pretensioned against the container in a radial direction thereof. Both the corrugated packing sheets of the packing packets as well as the additional corrugated packing sheet added between the packing packets are arranged solely on a common preferred plane or parallel thereto.

Abstract: A system and method for producing an aerogel composite material includes a reaction vessel having a movable carrier basket for receiving a plurality of fiber mats, and a plurality of plates to space the fiber mats apart from one another. Once the plates have been removed, there are gaps between the aerogel insulating boards, through which hot drying air can be blown during a drying process. The method has the advantage that the quantities of solvents and reagents to be disposed of are minimal, and in addition thereto, no complex work-up processes are necessary.

Abstract: The present invention relates to a liquid dispensing device which is placed inside a distillation column and can precisely control the supply ratio of a liquid to continuously supply the liquid. The liquid dispensing device is placed inside a distillation column, thereby reducing the total installation space.

Abstract: A distributor tray for a gas and a liquid circulating as a co-current, said tray comprising a plate perforated by orifices and supporting hollow chimneys extending perpendicularly to said plate, each orifice of the plate being surmounted by a chimney of identical cross section to said orifice, characterized in that the plate is equipped with a plurality of openings arranged on the periphery of each chimney inside a circumscribed circle, the center of which coincides with the center of the chimney, and the radius of which is less than or equal to ? of the shortest distance separating two adjacent chimneys, and in that a single deflector element is arranged beneath each chimney, the openings and the deflector element associated with each of the chimneys being so arranged as to impart a rotating movement to the gas/liquid mixture under each chimney.

Abstract: The invention is a distributor tray for a column (1) for heat and/or material exchange between a gas (G) and a liquid (L), comprising at least one means providing passage of the gas through the tray (2). The means has at least one chimney (4), defining on the surface of the tray (2) compartments (8) of substantially identical surface areas. Each compartment comprises at least one means (5) allowing passage of the liquid through the tray (2). The invention also has application to a gas/liquid contact column, a gas treatment unit, a CO2 capture unit, a distillation unit, an offshore floating barge comprising such a distributor tray and a method of manufacturing the tray.

Abstract: A separation column containing a feed distribution device and a feed distribution device for a separation column, such as a vacuum distillation column. The feed distribution device being capable of diffusing and directing a feed flow from a feed inlet so as to distribute the feed substantially evenly over the surface area of a separation plate in the column thereby increasing the columns efficiency. The separation column containing the feed distribution device being capable of shorter height, less costly design and lower operating cost than a separation column without the feed distribution device.

Abstract: Bubble generator devices to produce a fluid stream of bubbles are described. Apparatuses that include any of the described bubble generator devices to treat waste and/or frac-water are also described.

Abstract: A carrier-gas mixture is directed through a fluid flow path in a combined heat and mass transfer device operating at a sub-atmospheric pressure. Heat and mass are transferred from or to the carrier-gas mixture via interaction with a liquid composition that includes a vaporizable component in a liquid state to substantially change the content of the vaporizable component in the carrier-gas mixture via evaporation or condensation of the vaporizable component. The mass flow rate of the carrier-gas mixture is varied by extracting or injecting the carrier-gas mixture from at least one intermediate location in the fluid flow path, and/or the mass flow rate of the liquid composition is varied by extracting or injecting the liquid composition from at least one intermediate location in the fluid flow path; and the flow of the carrier-gas mixture or the liquid composition is regulated to reduce the average local enthalpy pinch in the device.

Abstract: An apparatus for collecting/redistributing a flow of liquid descending in an exchange column containing a layer of packing that includes: a plurality of horizontally spaced longitudinal members, each member having an inner side and an upper end adjacent a bottom of the layer of packing; at least one plate vertically spaced from the bottom of the layer of packing, each plate adapted to collect a portion of the flow of the descending liquid and having opposing ends connected to the inner sides of a pair of the longitudinal members; and at least one vapor riser in fluid communication with the plate and adapted to receive and transmit at least a portion of a stream of a vapor ascending in the exchange column from below to above the plate, each vapor riser having a cap vertically spaced apart from the bottom of the layer of packing.

Abstract: The subject of the invention is a diffuser for saturation of water with gas, comprising a diffusion element (1) for diffusing the gas run through the diffuser, wherein the diffusion element (1) is made of charcoal. The invention also refers to a set for saturating water with gas, as well as a method for saturation of water with gas, and the use of charcoal as a diffusion element.

Abstract: A method for purifying polluted air having particle phase pollutants and gaseous phase pollutants is provided. The method comprising: separately purifying and treating particle phase and gaseous phase pollutants present in the air; providing a dust cleaning apparatus, a catalytic filter core and a valve for controlling an airflow path within an air purification apparatus; controlling the airflow path for the air to bypass the catalytic filter core in a way that: if the amount of particle phase pollutants is above a predetermined value, the valve is moved to the open position to enable the air to bypass the catalyst filtering core; if the amount of particle phase pollutants is less than a predetermined value, the valve is moved to the closed position to force the air to pass through the catalyst filtering core.

Abstract: A contact reaction tower, including: a central cylinder; and an outer cylinder. Lift pipes and a water inlet pipe(s) are installed in the central cylinder, reflux windows are formed on the wall of the central cylinder, and the water flow circulation between the central cylinder and the outer cylinder is realized through the lift pipes, the water inlet pipe(s), and the reflux windows, such that the water flow internal circulation of the whole contact reaction tower is realized. The contact reaction tower is sealed in its entirety from the outside environment, and a gas guide pipe is installed at the top of the contact reaction tower.

Abstract: A structured packing for a reactor is formed from a metal sheet to promote heat and mass transfer near the wall of the reactor. The structured packing causes lateral flow of fluids flowing through the packing such that jet impingement of at least one reactor wall is promoted. The packing may be used in a cylindrical, annular or plate-type reactor, e.g., a catalytic reactor, or a heat exchanger.

Abstract: A foam generating apparatus has a body with an inlet end at one end and an outlet end at the other end; a wind averaging piece contained in the body and adjacent to the inlet end, a buffer space being defined between the side of the wind averaging piece toward the inlet end and the inner edge of the inlet end, and the wind averaging piece being provided with a plurality of radially arranged through holes; and a porous body disposed in the body and abutting against the side of the wind averaging piece toward the outlet end, and a foam collecting chamber being defined between the porous body and the inner edge of the outlet end.

Abstract: A method for purifying polluted air having particle phase pollutants and gaseous phase pollutants is provided. The method comprising: separately purifying and treating particle phase and gaseous phase pollutants present in the air; providing a dust cleaning apparatus, a catalytic filter core and a valve for controlling an airflow path within an air purification apparatus; controlling the airflow path for the air to bypass the catalytic filter core in a way that: if the amount of particle phase pollutants is above a predetermined value, the valve is moved to the open position to enable the air to bypass the catalyst filtering core; if the amount of particle phase pollutants is less than a predetermined value, the valve is moved to the closed position to force the air to pass through the catalyst filtering core.

Abstract: The invention is a fluid distribution device for coupling with a fluid distribution conduit or chimney for improving the distribution of downwardly flowing poly-phase mixture including at least one gas phase and at least one liquid phase, above at least one catalyst bed of granular solid catalytic material. The fluid distribution device for receiving the liquid and gas phases has one or more openings in the top and/or upper portion of its height through which a gas phase can enter and has a gas conduit that opens to a mixing cavity within the device. The fluid distribution device further comprises one or more lateral openings for liquid ingress. The lateral opening or openings allow the liquid to enter a liquid conduit that opens to the internal mixing cavity. The mixing cavity allows intimate contact between the liquid and gas phases. Therefore the flow distribution device of the invention provides improved tolerance for tray out of levelness.

Abstract: An enclosure includes at least one packed bed and a mixture supply line for delivering at the bottom of the enclosure a mixture of a liquid with a gas. The enclosure includes a system for separating the liquid phase and the gas phase of the mixture, the system being arranged between the bed and the mixture supply line, and this system including a housing having a flow passage for the degassed liquid and discharge passages for the disengaged gas.

Abstract: One exemplary embodiment can be a sprayer for distributing at least one fluid in a vessel. The sprayer can include a first member having a first surface and a second surface forming at least one aperture there-through. Generally, the at least one aperture is skewed with respect to a substantially vertical axis passing through a center of the first member for distributing the at least one fluid in the vessel.

Abstract: A packed column includes a regular packing (8) and a liquid distribution plate (5). The regular packing (8) is constructed by combining two or more hollow columns, and the hollow columns each have a cross section of circular shape, hexagonal shape or other shapes. The liquid distribution plate (5) has small holes under which liquid guide tubes (4) are connected. The liquid guide tubes (4) lead to all hollow columns of the packing (8). The liquid distribution plate (5) is horizontally installed above the regular packing (8) in a column body (2). Each gas guide plate (11) is made by rotating and twisting a rectangular plate and has several protrusions (12) on its side. The gas guide plates (11) are installed in the hollow columns of the regular packing (8) with the height slightly smaller than that of the hollow columns. A gas outlet (3) is located between the regular packing (8) and the liquid distribution plate (5).

Abstract: An apparatus (10) for purifying polluted air consisting of particle phase pollutants and gaseous phase pollutants, the apparatus (10) comprising: a dust level sensor (23) to measure the amount of particle phase pollutants in the polluted air; a dust removal component (14) to remove the particle phase pollutants from the polluted air; a catalyst filtering core (17) to decompose the gaseous phase pollutants by chemical reaction; a valve (22) for selectively controlling a path of air flow within the apparatus (10) and is movable between an open position and closed position, the valve (22) being positioned downstream from the dust removal component (14); wherein if the amount of particle phase pollutants measured by the dust level sensor (23) is above a predetermined value, the valve (22) is moved to the open position to enable the air to bypass the catalyst filtering core (17); and if the amount of particle phase pollutants measured by the dust level sensor (23) is less than a predetermined value, the valve (22)

Abstract: An air cleaner that is capable of efficiently and effectively purifying and humidifying air. An air flow passage from air filters (4, 5) to a blower (8) is branched to first and second air flow passages (31, 32), and then these air flow passages join. A humidifying filter (14) is disposed in the first air flow passage (31), and a movable plate (35) for opening and closing the humidifying filter is disposed in the second air flow passage (32). The air cleaner comprises a control part (40) for controlling the opening and closing operation of the movable plate (35) and the rotating operation of the blower (8). A recess containing the air filters (4, 5) is formed in the front of the body (2) of the air cleaner. An air flow passage extending from under the recess to the back of the recess and bent upward is horizontally partitioned into upper and lower parts by a partition wall (27) to form the first air flow passage (31) and the second flow passage (32) in this order from the bottom.

Abstract: A foam generating apparatus comprises a body having an inlet end at one end and an outlet end at the other end; a wind averaging piece contained in the body and adjacent to the inlet end, a buffer space being defined between the side of the wind averaging piece toward the inlet end and the inner edge of the inlet end, and the wind averaging piece being provided with a plurality of radially arranged through holes; and a porous body disposed in the body and abutting against the side of the wind averaging piece toward the outlet end, and a foam collecting chamber being defined between the porous body and the inner edge of the outlet end.

Abstract: The present invention relates to a treatment or hydrotreatment reactor comprising at least one granular bed (12), an essentially liquid phase (L) and an essentially gaseous phase (G) present in the bottom of the reactor and separated by an interface (38), and a distribution plate (20) with at least one main chimney (32) allowing circulation of liquid phase (L) towards the bed and at least one passage (30) for feeding gas phase (G) into said bed. According to the invention, plate (20) also comprises at least one mixed chimney (34) for circulation of the liquid phase towards the bed or for feeding the gas phase into said bed.

Abstract: Disclosed is a gas-liquid contact system. The system includes a vessel arranged approximately perpendicular to the ground in a longitudinal direction, a static fluid mixer in the vessel having a passage tube and a spiral blade provided in the passage tube, a gas supplier supplying gas having foreign substances to the static fluid mixer from a lower end of the vessel, a gas discharger discharging the gas passed through the static fluid mixer from an upper end of the vessel, a first liquid supplier supplying liquid to the static fluid mixer, and a liquid discharger discharging the liquid supplied from the first liquid supplier outside of the vessel. In the system, the gas supplier includes a gas generator generating gas, a pipe connecting the gas generator with the vessel, a blowing device provided in the pipe, and a second liquid supplier supplying liquid to the pipe between the gas generator and the blowing device.

Abstract: One exemplary embodiment can be a sprayer for distributing at least one fluid in a vessel. The sprayer can include a first member having a first surface and a second surface forming at least one aperture there-through. Generally, the at least one aperture is skewed with respect to a substantially vertical axis passing through a center of the first member for distributing the at least one fluid in the vessel.

Abstract: The invention relates to an apparatus for the transfer of organic compounds from a first liquid phase to a gaseous phase and from said gaseous phase to a second liquid phase, comprising a packed stripping column (2), a housing (5), a shell (1), a means for introducing the gaseous phase at the bottom end of said packed stripping column (2), a distributor (4) for distributing said first liquid phase onto said packed stripping column (2), causing said first liquid phase to trickle down said packed stripping column (2) counter-currently to the flow of the gas phase and causing the gas stream leaving said packed stripping column (2) at its top end to have a higher content of organic compounds than the gaseous phase introduced at the bottom end of said packed stripping column (2), one or more ducts (9/26) allowing the gaseous phase leaving said packed stripping column (2) to flow downwards to the bottom end of a packed scrubber (3) enclosed in a housing (25), a distributor (12) on top of said packed scrubber (3) ca

Abstract: A device, system and method of mixing two fluids are described herein. A gaseous first fluid is distributed through a distribution zone to a mixing zone by a bundle of pipes parallel to an axis inside which the first fluid is uniformly distributed. A second fluid is uniformly distributed outside the pipes in the distribution zone. The mixing zone is separated from the distribution zone by a pipe-plate supporting the pipes. The pipe-plate has slits or openings to uniformly discharge the second fluid in an axial flow direction into the mixing zone. The pipes extend beyond the pipe-plate into the mixing zone to partialize an outlet flow of the first fluid. In one aspect, the pipes have different lengths to partialize the outlet flow. In another aspect, a terminal portion of the pipes partializes the outlet flow axially, radially, transversally or a combination thereof in the mixing zone.

Abstract: A shell-and-tube reactor is disclosed. Contact tubes are disposed within a cylindrical housing and are secured to tube plates. Gas and liquid phases are received via a feed opening in a lower end cap and discharged via an upper end cap in the housing. A distributor device is disposed in the housing, such that the tube plates serve as a horizontal plate for the distributor device to back up the gas phase and form a gas cushion, and vertical elements extend from the contact tubes. The vertical elements are adapted to conduct the liquid phase, are open in the upstream direction, and project outward in the direction of the feed opening through the gas cushion. The vertical elements further include at least one first opening on the circumference for the gas phase and at least one second opening for the liquid phase.

Abstract: A mass and/or heat transfer column is provided with a multiphase vapor distributor with distributes a vapor stream about the inner periphery of the column.

Abstract: A device for distributing a poly-phase mixture having a gas phase and liquid phase which mixture is in downflow mode through at least one bed of granular solid. The device has at least one tray (P) located above one of the beds of granular solid. It further has mixer conduits (21) for the liquid and gas phases, each conduit having an upper cross section for flow (22) allowing the passage of the majority of the gas phase, and a lower cross section for flow (23) allowing the mixture formed inside the conduits to communicate with a bed of granular solid. The mixer conduits (21) also having one or more lateral cross sections for flow (26) over at least a portion of their height to allow the passage of the liquid phase and possibly a minor portion of the gas phase inside the mixer conduits. The device also has a jet breaker type dispersive system (28) having a controlled porosity disposed below the lower cross section for flow (23) and above the bed of granular solids.

Abstract: Briefly described, embodiments of the present disclosure include: confining/focusing vortex flow transmission structures, mass spectrometry systems including a confining/focusing vortex flow transmission structure, methods of using the confining/focusing vortex flow transmission structure, methods of using mass spectrometry system, methods of transmitting droplets and ions, methods of evaporating droplets and desolvating ions, and the like.

Abstract: The invention provides a method for producing bubbles that exhibit an excellent monodispersity. The invention relates to a method for generating bubbles by the injection and dispersion of a gas through a porous body into a liquid, wherein the value produced by dividing the pore diameter that accounts for 10% of the total pore volume in the relative cumulative pore distribution curve of the porous body by the pore diameter that accounts for 90% of the total pore volume in the relative cumulative pore dismeter distribution curve of the porous body is 1 to 1.5.

Abstract: The invention relates to a fluid distributor for a material and heat exchange column, comprising a series of adjacent parallel vertical walls (11) which define alternate gas and liquid volumes, whereby some of the vertical walls are separated by horizontal bottom walls, provided with a line of holes and at least one section of each vertical wall is provided with a line of openings (12, 12A), formed in the upper part of the vertical wall and whereby first openings (12) have a first length towards the horizontal wall and second openings (12A) have a second length towards the horizontal wall, the second length being greater than the first.

Abstract: The invention relates to a device for mixing and distributing a gas and a liquid, arranged upstream from a granular bed. The device includes a substantially horizontal lower plate, said lower plate being equipped with a plurality of risers evenly distributed over the surface of said plate, each riser having an upper part and a lower end communicating with the underside of said plate, the upper part of the risers being provided with at least one lateral orifice. A substantially horizontal upper plate is provided above which the gas and the liquid are supplied, wherein said upper plate rests on risers extending upwardly from the lower plate.

Abstract: The invention in one embodiment is a nozzle device for coupling with a fluid distribution conduit for improving the distribution of an upward or downwardly flowing poly-phase mixture including at least one gas phase and at least one liquid phase, above at least one packed bed of granular solid or fluidized bed. The fluid distribution conduit for receiving liquid and gas phases has one or more lateral openings for flow over an upper portion of its height through which a gas phase can enter and has fluid distribution conduit having one or more lateral openings for flow over at least a lower portion of its height through which a liquid phase can enter the fluid distribution conduit. It also has at least one lower cross section for flow through which a mixture of gas and liquid communicate with a packed bed of granular solid or a fluidized bed.

Abstract: The current invention provides a modulated pressure wave vapor generator suitable for use outside of the laboratory. The vapor generator of the current invention produces a controlled analyte vapor sample without using bulk movement of gas. Additionally, the current invention compensates for changes in the environment to ensure discharge of the preferred volume of analyte from the vapor generator. Finally, the current invention provides a method for generating a controlled volume of analyte vapor suitable for calibrating vapor sensors.

Abstract: Bubble columns fractionate with vapor-liquid mass transfer efficiencies approaching that of distillation towers when vapor velocities in excess of 50% of jet flood are used. If the vapor velocities are pushed above about 70% of jet flood then the distillation performance of a given column packing becomes similar for both liquid continuous operation (bubble column mode) and vapor continuous operation (ordinary distillation tower mode).

Abstract: Apparatus for dosing gaseous and/or vaporous substances An apparatus for dosing gaseous and/or vaporous substances, in particular for generating varying scents, includes a multitude of packaged storage containers (1) from which different gases and/or vapors are driven out by a carrier medium. On their inlet sides, the storage containers are connected to a common carrier medium manifold (13) via a shut-off device (4) assigned to each storage container that can be actuated, and on their outlet sides to a joint homogenization chamber (8). Both the carrier medium manifold and the homogenization chamber are connected to a carrier medium source using a regulating valve (5, 9). Check valves (6, 7) are integrated in the gas passages to the storage container and from the storage container to the homogenization chamber. A dosing apparatus designed based on this principle is characterized by low space requirements and materially separate volume flows that can be exactly timed and dosed.

Abstract: A process for effecting mass transfer between a liquid phase and a gaseous phase in a filled-type column comprising an external shell which accommodates at least one filler-containing basket wherethrough the phases are caused to flow in countercurrent relationship, advantageously comprises the step of feeding the gaseous phase to the at least one basket through a gas-permeable surface thereof which is larger than the basket cross-section, preferably in a prevailing radial flow direction.

Abstract: Device for mixing and distributing a dense, generally liquid, fluid and a light, generally gaseous, fluid, placed in a reaction chamber upstream from a granular bed (70) or between two successive granular beds, the said device being characterized by a tubular system (50) for the introduction of dense fluid from outside the reactor, up to a level lower than the level of establishment of the interface between the dense fluid and the light fluid, situated above the plate and preferably more or less next to that of the plate (62). Application of this device to any type of gas/liquid reaction in a fixed bed in particular for hydrotreatment.

Abstract: The invention provides an improved natural draft cooling tower (10) having improved cooling capability and reduced liquid losses of evaporation and blow-out. To this end, the distribution of hot liquid to the packing assembly within the tower is increased around the perimeter zone of the packing assembly and reduced within the remaining packing assembly of the tower (24). A plurality of air injector fans (30) spaced circumferentially in the air inlet (20) between the shell (12) support columns (14), together with reduced air resistance through reduced hot liquid distribution to tower interior, produce increased air rates (32) and (34) resulting in improved cooling capability and reduced evaporation loss. With improved cooling, further reduction in evaporation, if required, can be achieved with a hot liquid by-pass (52).

Abstract: For mixing and distributing a gas phase and a liquid phase over a granular bed, employing an annular peripheral zone inside a reactor via which liquid is introduced and which acts as a buffer zone against fluctuations in the flow of the liquid phase. The device is applicable to catalytic bed chemical reactors especially for the hydrotreatment of hydrocarbons.

Abstract: A heating tower apparatus for heating a liquid having more than one inlet and more than one outlet. Each of the more than one inlet and more than one outlet is selectively openable and closable. The heating tower apparatus also includes a liquid distribution assembly and a fill medium. The liquid distribution assembly distributes the liquid onto the fill medium.

Abstract: An evaporative cooler, including one or more media modules, distributes water from a source of water to each module through a constant flow valve. A distribution unit at each media module includes a spray bar for spraying water through a plurality of uniformly spaced holes having an aggregate area equivalent to or less than twenty five percent (25%) of the internal cross sectional area of the spray bar. A distribution cap distributes the streams of water to the underlying media module(s) and the water dripping from the media module(s) is drained. A fan or other air moving device draws air through the media module(s) to obtain cooled air resulting from evaporation of water flowing downwardly along the media module(s).

Abstract: Described is an enclosed space, a column, or a reactor including a device for mixing and distribution of at least one gaseous phase and at least one liquid phase. The device can be placed upstream of a reaction zone or of a gas/liquid contact zone that can contain a packing bed or a bed of solid, possibly catalytic, particles. Also described is a process for implementing such an enclosed space, column or reactor and to a process for fabricating such an enclosed space, column or reactor.

Abstract: A liquid material evaporation apparatus including a mixing chamber, a flow control unit, a first flow passage for introducing a liquid material, a second flow passage for introducing a carrier gas connected to the mixing chamber through a first nozzle, the first nozzle inhibiting backflow from the mixing chamber into the second flow passage. A third flow passage for discharging evaporated mixed gas is connected to the mixing chamber through a second nozzle, the mixed liquid material and carrier gas being forced through the second nozzle by the flow control unit, the mixed liquid material and carrier gas depressurizing after passing through the second nozzle to evaporate into a mixed gas in the third flow passage. Heat is applied to the mixing chamber and the second and third flow passages to enhance mixing in the mixing chamber and to avoid condensation in the third flow passage.

Abstract: A vapor horn device for use in an elongated, generally upright mass transfer and/or heat exchange column having an internal region comprises an elongated, generally arcuate wall arranged to be located within the internal region and disposed to extend around a longitudinal axis of the column. The arcuate wall includes an inlet area positioned for being contacted by a vapor or mixed phase stream entering the column and causing the stream to flow along an outer surface of the arcuate wall and generally around the axis. The device also includes a primary elongated vane extending outwardly from the outer surface of the arcuate wall. This primary vane has an inner end located adjacent the outer surface of the inner wall and an outer end disposed in spaced relationship relative to the outer surface of the wall.

Abstract: Method and device for neutralizing, by controlled gas injection, the formation of liquid slugs at the foot of a pipe portion greatly inclined to the horizontal or riser connected to a pipe carrying circulating multiphase fluids such as hydrocarbons. Flow rate control is essentially obtained by injecting, at the base of the riser, a volume of gas proportional to the flow rate variation with time of the gas phase of the circulating fluids, and preferably substantially equal thereto, when this variation is positive. This action can be completed by modulating the injected gas flow by a quantity proportional to the flow rate variation of the liquid phase of the circulating fluids. Applications: offshore hydrocarbon production control for example.