Abstract: An installation for the treatment of fluid having a receptacle (1) defining a non-vertical portion of a path for fluid through at least two adjacent masses (A; B; C) of particulate materials, typically different from each other, each mass being in direct contact with its neighbor or neighbors, without the interposition of a separating grid. The installation is particularly useful for the separation or drying of air.

Abstract: A container for carbon molecular-sieve material which is designed to prevent contamination of carbon materials within the container. The container includes a hollow section with a preferably circular internal cross-section and a rectangular or square external cross-section. Attached to each end of the hollow section are screened structures designed to retain the molecular-sieve material within the hollow section. These screened structures are preferably secured in place by clamping rings. The hollow section can be hermetically sealed for transport and can be sealed by cover plates and bolts.

Abstract: An adsorber for purifying flue gases of a furnace includes a housing having a flue gas inlet and a flue gas outlet. The housing has an adsorption medium chamber. A fill socket extends from the top of the housing. A removal device extends from the bottom of the housing. The chamber includes substantially vertical, gas-permeable walls for delimiting the chamber at the inlet side and at the outlet side. The chamber also includes a vertical gas-permeable partition and a slanted non-gas-permeable wall. The wall at the inlet side is a louver wall extending upwardly to the level of the fill socket. The wall at the outlet side is a slotted screen connected with the slanted, non-gas-permeable wall to the fill socket. The flue gas outlet is located opposite the non-gas-permeable wall.

Abstract: An installation for the treatment of fluid having a receptacle (1) defining a non-vertical portion of a path for fluid through at least two adjacent masses (A; B; C) of particulate materials, typically different from each other, each mass being in direct contact with its neighbor or neighbors, without the interposition of a separating grid. The installation is particularly useful for the separation or drying of air.

Abstract: Apparatus and method to improve flow of fluid through an annular bed in a radial flow treatment vessel. An elongated annular baffle is disposed in the reactor adjacent the bed to impart generally U-shaped flow to the fluid either prior to entering or after it exits the bed thus achieving an overall serpentine or reverse U-shaped flow pattern as the fluid proceeds from an entry port to an exit port in the reactor. Means are provided in the baffle to permit minor amounts of fluid to bypass the generally U-shaped flow path in order to correct fluid flow maldistribution through the bed that is attributed to frictional pressure drop in the flow channels adjacent to the bed. A vessel according to the invention can be operated with fluid flow through the vessel in either direction.

Abstract: A casing assembly of a desiccant housing houses desiccant in an air dryer system. The casing assembly includes a casing portion, a retainer, two porous plates, and a mechanism for compacting the desiccant. The casing portion defines a channel between two sleeves that channels moisture-bearing air from an inlet of a head end out a tail end of the casing portion. An inner sleeve defines a flow chamber between the ends. The head end features an inner seat face that seals against an inner sealing flange of a main portion of the housing. The head end features an outer seat face that connects to an outer sealing flange of the main portion. The inlet communicates with a supply port of the main portion from which the moisture-bearing air is received during a drying mode of operation of the system. An outlet of the head end communicates with a delivery port of the main portion out of which dried air is directed during the drying mode. The retainer affixes to the inner sleeve within the flow chamber at the head end.

Abstract: In a drying cartridge for air drying installations, especially for vehicle air-brake systems, an air drying agent is contained inside an outer pot, the base region of which can be closed off by a face cover. A central screw with a thread at its end passing through the face cover and securable to the dryer casing extends axially and centrally through the drying cartridge. The face cover, which may be made of thin plastic, can move to a limited extent in relation to the outer pot of the drying cartridge and is secured by clamping or friction to an O-ring which in turn is introduced into an annular groove in the central screw such that, after the drying cartridge has been released from the dryer casing, the cartridge can still be handled as a structural unit.

Abstract: A combination respiratory filter and sampling device has been developed which collects airborne contaminants for respiratory exposure measurements. The devices, which fit existing commercial half-mask respirators, are generally smaller and lighter in weight than existing filters, and have low resistance to airflow, so they can be comfortably worn by people performing their normal work duties. Each device consists of at least a front, a middle and a back section which can be independently separated and analyzed by traditional laboratory techniques. The filtering and sampling media thicknesses and types can be adapted to target specific compounds.

Abstract: A multifunctional air filter module includes a filter case having an air introduction side opening and an air discharge side opening and a pleated fabric air filter element containing an activated carbon. The periphery of the pleated filter element is fixed in the filter case without clearance therebetween. At least one fabric filter element composed of a fabric including an activated carbon having a strong base, KMnO.sub.4 or ZnCl.sub.2, a fabric of a cation exchange fiber or a fabric of an anion exchange fiber, is simply placed in air introduction side grooves formed by pleats of the fixed air filter element, and is replaceable and can be regenerated. The air filter module is compact and can reduce the volume of a space occupied thereby in a semiconductor plant. Flexibility of installation thus is provided and the range of the use thereof is widened. Multifunctionality is increased easily merely by addition of replaceable filter element fabrics.

Abstract: A stationary hydraulic jump is utilized in a multi-phase mixing system to mix components present in a plurality of separate phases. The flow rate and film height of a liquid phase in a first pipe section is metered and combined with a flow rate metered gas phase to form a stationary hydraulic jump in a second pipe section. The jump position is monitored and maintained stationary. A mixed fluid flows from the jump. A variety of solid, liquid, and gaseous components may be mixed in the hydraulic jump through appropriate selection of the liquid and gas phase components.

Abstract: A vessel for use in a pressure swing adsorption gas separation process includes an enclosing wall which defines an enclosed space having a top region and a bottom region. An annular adsorbent bed is positioned within the enclosed space and has a porous outer wall, a porous inner wall and adsorbent material positioned between the walls. The porous outer wall is separated from the enclosing wall to create a gas feed channel therebetween, and the porous inner wall surrounds an inner tank whose wall surface is separated from the porous inner wall and creates a product flow channel therebetween. A gas feed/distribution baffle structure is positioned in the bottom region of the vessel and in fluid communication with the gas feed channel to provide a gas feed thereto. The gas feed enters the gas feed channel and the adsorbent bed via the porous outer wall and in a direction generally radially towards the inner porous wall and product flow channel.

Abstract: An isolation work station comprising an enclosure, and an air circulation system and high efficiency air filter for generating a downwardly directed laminar air flow through the enclosure. Periodic sterilization of the enclosure may be accomplished by adding a sterilant, such as vaporized hydrogen peroxide, to the airstream, and the filter is impregnated with a catalyst for degrading the vaporized hydrogen peroxide during the purge cycle and wherein the airstream is circulated at a relatively low speed so as to increase the residence time in the filter.

Abstract: Activated carbon injection is provided for mercury removal in a flue gas treatment system having an electrostatic precipitator and a wet flue gas desulfurization tower by injecting fresh activated carbon into the flue along with recycled carbon from the exhaust of the precipitator to minimize fresh carbon make up along with an activated carbon bed in the desulfurization tower to maximize mercury and other toxin removal from the flue exhaust.

Abstract: A device for separating at least one component from a gas mixture, comprising at least a pair of adsorber units, each adsorber unit comprising an envelope defining an inner volume having a lower end zone and an upper end zone. There is at least one adsorbent layer between the lower and upper end zones. A first conduit has one end communicating with the lower end zone, and a second conduit has one end communicating with the upper end zone. The adsorber units of the pairs are superposed and one of the first and second conduits of each adsorber includes a vertical central tube portion. The vertical central tube portions of the pair of adsorber units are mechanically interconnected in endwise abutting relationship. The adsorber units are superposed such that the envelopes of adjacent units leave an intermediate space therebetween. The first and second conduits each have an outer portion extending out of the envelope in the intermediate space.

Abstract: A desiccant type air dryer assembly having an integral purge volume with a body assembly and a removable desiccant cartridge. A retention bolt is provided in the body assembly which serves the two-fold function of retaining the cartridge and body assembly in an assembled condition as well as providing a flow passageway for air moving through the air dryer.

Abstract: A desiccant type air dryer for an air supply system for a motor vehicle brake system. The air dryer incorporates features for convenient mounting and dismounting of a desiccant cartridge to the air dryer body assembly. This connection is achieved through the use of an externally accessible through bolt which passes through the body assembly and engages a central threaded boss on the load plate of the desiccant cartridge. Interlocking engagement between the desiccant cartridge and body assembly prevent these parts from rotating relative to one another during mounting and dismounting of the cartridge. The desiccant cartridge is readily removed through engaging the through bolt driving head using conventional tools.

Abstract: The air purifier is used in a forced air heating and cooling system. It includes a cabinet assembly having therein a removable adsorber media carrier assembly. The carrier assembly includes a plurality of removable and refillable adsorber tubes provided with pelletized activated carbon or other adsorption media. The adsorber tubes are made from wire mesh and are arranged in rows with the air flowing through the cabinet assembly striking and impinging on the adsorber tubes in order to purify the air.

Abstract: A container for a plurality of molecular sieve beds for use in a pressure swing oxygen concentrator. An extrusion defines at least two and preferably at least three passages extending between open ends of the extrusion. The extrusion ends are closed by first and second end caps secured to the extrusion. Two of the passages form separate molecular sieve containers and a third passage may form an accumulator for storing concentrated oxygen. In a preferred embodiment, the first end cap has separate inlet ports for each molecular sieve container and an outlet port for the accumulator. The second end cap has separate outlet ports for each molecular sieve container and an inlet port for the accumulator.

Abstract: Adsorption agent cartridge includes a vacuum tight cover having an adsorption agent filler consisting of a substance which can adsorb operating medium steam. The adsorption agent cartridge further includes an inlet opening for the inflow of the operating medium steam and an exhaust opening, which preferably connects to an exhaust device, for expelling air and nonadsorbed gases from the adsorption agent filler. The adsorption agent filler is designed to adsorb the operating medium steam and not to adsorb air components. The exhaust opening and the inlet opening are so arranged with respect to the adsorption agent filler such that the non-adsorbed gases are expelled from the regions of the adsorption agent filler without the concurrent removal of the inflowing operating medium steam.

Abstract: A combination developer/absorber package for use in a diazo copy machine. The package includes a hollow package body having a vapor permeable top and bottom. A vessel of liquid ammonia is nested inside the interior of the package body and has an opening which is closed by a stopper having two bores formed therethrough. Supply and exhaust tubes extend through the bores and into the vessel for quick connection with the supply and exhaust lines of the diazo copy machine. A quantity of ammonia vapor absorbent material is disposed inside the package body between the vessel of liquid ammonia and the side wall of the container body. The package sits on top of a blower unit operatively associated with the machine so that warmed, ammonia vapor laden air passes through the absorbent material.

Abstract: A moisture removal device for compressed air lines and the like includes a connection head having a gas inlet and a gas outlet. An elongated housing having an internal cavity is threaded to the connection head and sealed thereto with O-rings such that a central distribution tube is coupled to one of the inlet and the outlet and an open end of the housing is coupled to the other. The housing contains desiccant material for removing moisture from the gas, held captive in the housing by a retention screen across the open end. The distribution tube is impermeable between its end coupled to the connection head and one or more openings at the opposite end of the housing. The gas thus flows from the gas inlet through the entire bed of desiccant material and is discharged through the gas outlet in the connection head.

Abstract: The present invention relates to a lightweight and durable flexible-walled adsorber vessel that may be a freestanding unit, may be hung from an overhead support frame or ceiling, may float or be submersed in a body of liquid, or otherwise be suspended during use. The flexible adsorber of the present invention utilizes an internal screen, mesh, pallet or similar means to support carbon or other porous filter media so as to permit the pressurized or unpressurized removal of undesirable vapors, liquids or solids that may be present in streams of gas or liquid. Embodiments of the flexible adsorber are capable of supporting filter media weighing a ton or more, can resist deterioration in the presence of a variety toxic chemicals and/or corrosive agents, and can serve as a shipping container before or after use.

Abstract: A scrubber having a housing and a pair of replaceable and removable perforated casings within the housing. Preferably, the casings are cylindrical and concentric forming an inner corespace inside the innermost casing and an annular fillspace between the casings. A central, conical feeder at the top of the housing permits uniform distribution of treatment media into the annular fillspace. Circulation of exhaust gas through the scrubber is provided by a removable inlet pipe and removable outlet pipe. Contaminant-laden exhaust gas that is fed into the core, percolates through the treatment media and is discharged out through the housing. The stream of exhaust gas can be reversed without any modification to the internal or external parts of the scrubber. A plurality of removable horizontally extending cylindrical pipes secured to the lower end of the housing are used to remove the exhausted treatment media without disturbing surrounding piping through discharge ports secured to the lower end of the housing.

Abstract: A filtering unit having multiple filtering sides uses one or more filtering elements wrapped around an inner housing containing a blowing device. Outer housing panels are disposed about the filtering elements. The filtering elements and outer housing panels are held in place by one or more stays.