Abstract: Described is an additional filter element for a filter apparatus for reducing emissions from a motor vehicle tank venting system. The additional filter element is connected to a main activated carbon filter and has adsorbents which, to achieve a high working capacity, in particular at 42° C., has a high micropore volume. To retain a residual loading possibly present in the micropores the adsorbents further have a mesopore volume. The micropore volume is at least 0.4 cm3/g and the mesopore volume is at a maximum 0.95 cm3/g.

Abstract: An evaporative emissions filter for an engine air induction system. The evaporative emissions filter includes a hydrocarbon vapor-adsorbent member disposed within the air induction system. A mechanism is provided for mounting the evaporative emissions filter within the air induction system. Hydrocarbon vapors present in the air induction system after engine shut-down are substantially retained in the adsorbent member until air flows through the air induction system after the engine starts.

Abstract: A mixed matrix membrane is provided which comprises a continuous phase organic polymer and small pore molecular sieves dispersed therein. The molecular sieves have a largest minor crystallographic free diameter of 3.6 Angstroms or less. When these molecular sieves are properly interspersed with a continuous phase polymer, the membrane will exhibit a mixed matrix membrane effect, i.e., a selectivity increase of at least 10% relative to a neat membrane containing no molecular sieves. Finally, methods for making and using such mixed matrix membranes to separate gases from a mixture containing two or more gases are also disclosed.

Abstract: A chemical filter medium for removing ozone and nitrogen oxide includes a first ozone absorption layer for mainly removing ozone having a filtering base material for removing ozone, a first nitrogen oxide absorption layer for mainly removing nitrogen oxide formed on the first ozone absorption layer that includes a filtering base material for removing nitrogen oxide, and a second ozone absorption layer formed on the first nitrogen oxide absorption layer that includes a filtering base material for removing ozone. The chemical filter medium can simultaneously remove ozone and nitrogen oxide.

Abstract: An improved filter element which can be used in gas masks is formed of short lengths of porous monolithic carbon formed by partially curing a phenolic resin to a solid, comminuting the partially cured resin, extruding the comminuted resin, sintering the extruded resin so as to produce a form-stable sintered product and carbonising and activating the form-stable sintered product.

Abstract: An adsorption filter material used especially for producing protective materials, such as NBC protective suits, has a first layer, a second layer, and an adsorption layer arranged between the first layer and the second layer. The adsorption layer has a first activated carbon layer with granular or spherical activated carbon particles. The first activated carbon layer additionally contains activated carbon fibers and/or the adsorption layer additionally contains a second activated carbon layer with activated carbon fibers.

Abstract: The invention relates to an adsorber station with a first adsorber (A) and a second adsorber (B). A first closed loop pipeline (1) is connected to the adsorbers (A, B) and is provided with product gas feed line valves (4A, 4B) and regeneration gas discharge line valves (6A, 6B). A second closed loop pipeline (2) that is connected to the adsorbers (A, B) has product gas discharge line valves (7A, 7B) and regeneration gas feed line valves (8A, 8B).

Abstract: A mixed matrix membrane is provided which comprises a continuous phase organic polymer and small pore alumina containing molecular sieves dispersed therein. The molecular sieves have a silica-to-alumina molar ratio of less than 1.0, more preferably, less than 0.3, and most preferably less than 0.1. In some cases, the molecular sieves have no appreciable amounts of silica. Exemplary compositions include aluminophosphates (AlPO) and silicoaluminophosphates (SAPO). When these molecular sieves are properly interspersed with a continuous phase polymer, the membrane will exhibit a mixed matrix membrane effect, i.e., a selectivity increase of at least 10% relative to a neat membrane containing no molecular sieves. The molecular sieves have pores with a largest minor crystallographic free diameter of 4.0 Angstroms or less. Finally, methods for making and using such mixed matrix membranes to separate gases from a mixture containing two or more gases are also disclosed.

Abstract: A portable gas fractionalization apparatus that provides oxygen rich air to patients is provided. The apparatus is compact, lightweight, and low-noise. The components are assembled in a housing that is divided into two compartments. One compartment is maintained at a lower temperature than the other compartment. The lower temperature compartment is configured for mounting components that can be damaged by heat. The higher temperature compartment is configured for mounting heat generating components. An air stream is directed to flow from an ambient air inlet to an air outlet constantly so that there is always a fresh source of cooling air. The apparatus utilizes a PSA unit to produce an oxygen enriched product. The PSA unit incorporates a novel single ended column design in which all flow paths and valves can be co-located on a single integrated manifold. The apparatus also can be used in conjunction with a satellite conserver and a mobility cart.

Abstract: A filter unit for the purification of air includes at least a first filter element, which contains granular, especially spherical, activated carbon as an adsorbent material, and at least a second filter element, which contains a combination of granular, especially spherical, activated carbon and activated carbon fibers as an adsorbent material. The filter unit is suitable especially for use in ventilation plants, ventilation systems, air-conditioning systems and the like.

Abstract: In preferred embodiments, the invention provides a gas filter for a reactive gas used in semiconductor processing tools and processes that are sensitive to molecular contamination. The reactive gas filter of the invention have improved pressure drop and can supply an output gas stream having concentrations of less than about 1 ppbv for both ammonia and sulfur dioxide for an input gas stream with ammonia and sulfur dioxide concentrations, respectively, of no greater than about 10 ppbv and 5 ppbv. In one aspect the invention provides a reactive gas filter with an improved pressure drop that can supply an output gas stream having concentrations of less than about 1 ppbv for both ammonia and sulfur dioxide for an input gas stream with ammonia and sulfur dioxide concentrations, respectively, of no greater than about 10 ppbv and 5 ppbv, using a filter media volume of no greater than about 0.5 liters.

Abstract: An air filter assembly for removing particulate contaminants, chemical contaminants, or both, from an incoming dirty air stream. The resulting filtered or clean air is supplied to catalytic equipment, such as a fuel cell. The filter assembly can include a physical filter portion for removing physical or particulate contaminants, a chemical filter portion for removing chemical contaminants, or can have both portions.

Abstract: An activated carbon/metal oxide filter element is disclosed. The filter element may be prepared by blending an activated carbon, a metal oxide, and a binder to form a filter media mixture, shaping the filter media mixture into a filter body. The filter body may be calcined to form a filter element. The activated carbon/metal oxide filter element may be used to remove odorous compounds, acidic gases, and volatile organic compounds from a gas.

Abstract: The present invention involves a carbon-based hydrogen storage material which includes a carbon material, exhibiting a specific surface area, being 1,000 m2/g or more, and a bulk density, being from 0.4 g/cm3 or more to 1 g/cm3 or less. The carbon-based hydrogen storage material is such that the hydrogen storage capacity per unit volume is large. The invention also provides for a hydrogen storage apparatus whose hydrogen storage capacity per unit volume is large. The hydrogen storage apparatus is constituted so as to include a container and a hydrogen absorbing material accommodated in the container, and the hydrogen absorbing material is arranged to include a porous carbon material whose specific surface area is 1,000 m2/g or more, and a hydrogen absorbing alloy.

Abstract: A filter for an air conditioner, including a carbon nanotube, wherein nano-sized metal particles of at least one type of metal are deposited into the carbon nanotube.

Abstract: An adsorber vessel for use in the adsorption of a component from a gas and subsequent regeneration by thermally induced desorption of the component comprises an inlet for regeneration gas having an inlet nozzle containing at least one heater element, and an outlet for regeneration gas, the inlet and outlet for regeneration being separated by a flow path including a flow chamber containing a body of adsorbent, and wherein the body of adsorbent has a first end which is adjacent the inlet for regeneration gas and a second end which is remote from the inlet for regeneration gas, and the or each heater element is located so as not to penetrate through the first end of the body of adsorbent.

Abstract: A portable gas fractionalization apparatus that provides oxygen rich air to patients is provided. The apparatus is compact, lightweight, and low-noise. The components are assembled in a housing that is divided into two compartments. One compartment is maintained at a lower temperature than the other compartment. The lower temperature compartment is configured for mounting components that can be damaged by heat. The higher temperature compartment is configured for mounting heat generating components. An air stream is directed to flow from an ambient air inlet to an air outlet constantly so that there is always a fresh source of cooling air. The apparatus utilizes a PSA unit to produce an oxygen enriched product. The PSA unit incorporates a novel single ended column design in which all flow paths and valves can be co-located on a single integrated manifold. The apparatus also can be used in conjunction with a satellite conserver and a mobility cart.

Abstract: A filter member which comprises one layer of deodorizing filter 1, which is composed of a reticulated filter substrate and a deodorizing agent adhering to the surface of its skeletons, and one or two layers of dust collecting filter 2a and 2b laminated on any one side or both sides thereof, with the resulting laminate being pleated.

Abstract: A device is disclosed for cooling motors that generate heat during operation. The device is more specifically directed to handheld power tools where long operation can lead to overheating of the handheld tool.

Abstract: Process in conjunction with the production of oxygen (22), wherein incoming air (10, 16, 16a, 16b,) is brought to pass through a sorbent/zeolite structure (18), which comprises at least three zeolite units (50a–f) intermittently operated in a first stage comprising adsorption of nitrogen from the air and a second stage comprising desorption (20, 20a, 20b) of thus adsorbed nitrogen. At least two of the zeolite units are operated in the adsorption stage, the incoming air being brought to pass consecutively (53a) through the at least two zeolite units to form an increasing nitrogen gradient; and/or at least two units of the zeolite units are operated in the desorption stage, a pressure being released and/or a desorbing gas (22a, 22b) being brought to pass consecutively (53b) through the at least two zeolite units to form a decreasing nitrogen gradient in the zeolite units.

Abstract: Filters for removing particulate and gaseous organic and inorganic materials from a fluid stream are disclosed. The filters may contain a polymer matrix and optional sequestering agents. Methods of making filters are also disclosed. Methods of using filters to remove one or more materials from a fluid stream, such as an air stream, are also disclosed.

Abstract: A method and apparatus for preventing contamination of a substrate or a substrate surface, and particularly relates to prevention of contamination of raw materials, semi-finished products, base materials of products and substrate surface in a high-tech industry such as an in the production of semiconductors and liquid crystals. A gas coming into contact with a base material or substrate is purified by dust removing apparatus and adsorption and/or absorption apparatus so that the concentration of fine particles in the gas is below class 1,000 and a non-methane hydrocarbon concentration is below 0.2 ppm. Thereafter, the base material or the substrate surface is exposed to this gas.

Abstract: A process and an apparatus related to the reduction of the level of a component in a feed gas such as air involving passing the gas to at least three parallel thermal swing adsorption zones charged with an adsorbent and operating according to an adsorption cycle, wherein the cycle of each zone is phased with respect to that of the other zones so that at any point during the cycle, the number of zones in the adsorption step is greater than the number of zones not in the adsorption step.

Abstract: The invention relates to a mechanically stable, porous shaped activated carbon article having a first three-dimensional framework structure based on carbonized resin, a second three-dimensional inorganic framework structure comprising ceramic material and/or baked refractory material, and binding agent, as well as activated carbon particles, in which the first and second framework structures penetrate each other at least partially and the activated carbon particles are fixed to the framework structures. The invention also relates to a process for the production of such a shaped activated carbon article and to the use thereof.

Abstract: An expandable desiccant element for removal of moisture from an air stream. Such expandable desiccant element includes at least one first expandable containment section capable of expanding a first predetermined amount, at least one second expandable containment section capable of expanding a second predetermined amount which is greater than the first predetermined amount connected to the first expandable containment section. Such at least one first expandable containment section and at least one second expandable containment section forming a predetermined shape.

Abstract: A scrubber for eliminating NO from air flowing through the scrubber, comprising a housing (1) having at least one inlet hole (2) and an outlet hole (4) and which is comprising filtering material (6). A second outlet hole (9) is provided in the housing (1) at a position situated at a distance from the first outlet hole (4) and any inlet hole (2) so that the air leaving the second outlet hole (9) will have flown at least through a depth of the filtering material (6) substantially corresponding to the depth of the filtering material (6) for the air flowing from the inlet hole (2) to the first outlet hole (4).

Abstract: A canister is connected to a fuel tank to adsorb fuel vapor vaporized in the fuel tank and includes a canister housing and a canister main body, which is received in the canister housing and communicates with the fuel tank at one end. The canister housing includes an atmospheric port and a filter chamber, and the filter chamber receives a filter and communicates between the other end of the canister main body and the atmospheric port, which in turn communicates with the atmosphere. The filter includes an active carbon part, an atmosphere-side unwoven fabric and a tank-side unwoven fabric. The active carbon part includes active carbon granules, which adsorb fuel vapor vaporized in the fuel tank. The atmosphere-side unwoven fabric and the tank-side unwoven fabric sandwich the active carbon part therebetween in a flow direction of air, which passes through the active carbon part.

Abstract: The present invention relates to air deodorizing devices for removing malodor from the air. Such devices are useful for example for storing and preserving food in closed compartments such as refrigerators. The air deodorizing device of the present invention comprises a cartridge member and an air moving member whereby the cartridge member is detachable from the device.

Abstract: Filter systems that are effective against a broad range of contaminants including HCN, cyanogen chloride (CK), acid contaminants and basic contaminants such as ammonia without the need (but with the option, if desired) for using molybdenum or chromium containing materials. The filtering systems of the present invention include a tungsten-based material and other impregnants incorporated into a substrate such as filter media particles.

Abstract: A duct for passage of air therethough; one particular use for the duct is as a passage for intake air for a vehicle engine. The duct has an interior, adsorptive region that is adapted to remove contaminants from the air stream passing therethrough. The adsorptive region includes adsorptive material such as carbon (usually activated carbon), activated alumina, zeolites, metal oxides or ion exchange resin. The duct inhibits diffusion of uncombusted gasoline back through the duct from the engine, after the engine has been shut off.

Abstract: The invention provides a low-resistance gas adsorption filter provided with an activated carbon bed of bulk density less than 0.6 gram/cubic centimeter, the activated carbon bed being free of chromium 6+ salt, the filter being characterized by a gas holding capacity exceeding 300,000 milligram Dimethyl-methyl Phosphonate (DMMP)×minute/cubic meter and an airflow resistance such that the numerical value of air flow resistance in Pascal per millimeter of bed thickness does not exceed by more than 50% the numerical value of air velocity in centimeters per second.

Abstract: The present invention provides a combination filter for filtering fluids comprising a flow channel particulate filtration media having a first face and a second face and a gas adsorbing filtration media. The flow channel particulate filtration media comprises a plurality of flow channels directed in flow direction and defined by inner surfaces. The flow channels having inlet openings through the first face and outlet openings through the second face of the flow channel particulate filtration media. The inner surfaces of said flow channels at least in part are provided with structures protruding therefrom and forming or extending into the flow channels or an electrical charge or a combination of both. The said gas adsorbing filtration media comprises a pad having a first face and a second face and width and length dimensions orthogonal with respect to each other and each individually to the flow direction and having a thickness dimension in flow direction.

Abstract: The present invention relates to air filtering devices for removing malodor and ethylene from the air. Such devices are useful for example for storing and preserving fluid in closed compartments such as refrigerators. The air filtering device of the present invention is characterized in that a first filtering member is capable of removing malodors from the air and a second filtering members capable of removing ethylene from the air.

Abstract: The desiccant bottle cap includes a cap structure and a desiccant material adhered thereto. The desiccant bottle cap is preferably used to cover a medicine bottle so that the efficiency of the medicine disposed therein will not be impaired by moisture resulting from humid air entering the bottle. In one embodiment, the desiccant bottle cap includes a bottle cap and a desiccant packet affixed to an interior surface thereof. In another embodiment, the desiccant bottle cap includes a bottle cap, a bottle cap liner adhered to an interior surface of the bottle cap, and a desiccant packet adhered to a top surface of the desiccant liner. In yet another embodiment, loose desiccant material or a disk of desiccant material is sandwiched between a bottle cap liner and a porous material to create a bottle cap insert for removable insertion into a bottle cap.

Abstract: A method and apparatus for the extraction of water from a gas stream, such as atmospheric air. The method includes contacting the gas stream with a porous adsorbent material having a surface modifying agent adsorbed on the surface of a porous support. The surface modifying agent creates a hydrophilic surface for the adsorption of the water. After the water is adsorbed into the pores, the surface modifying agent is selectively desorbed from the surface. The water then evaporates from the pore and can be collected in a condenser. The method and apparatus of the present invention advantageously operate in a substantially isothermal manner, thereby reducing the size and power consumption of the device. The device can advantageously be used to extract potable drinking water from atmospheric air.

Abstract: Component contained in a gas mixture can be separated based on a PSA method and recovered with high purities at the same time, the system is simple, the system cost is low, and the operation is easy and may be used for separating oxygen and nitrogen from air or for separating noble gases and nitrogen from a gas mixture containing noble gases and nitrogen, and obtaining each gas as a product.

Abstract: An adsorption gas dryer has a first drying tower and a second drying tower each having a first port and a second port through which gas can pass into or out of the tower, a first manifold and a second manifold connected respectively to the first and the second ports of both towers, the manifolds each including integral gas passages, each port of the towers being in communication with a gas passage, and the manifolds each including at least one integral valve seat upon which a valve actuator is mounted to constitute a valve for controlling flow of gas through the gas passages, wherein the second manifold has two exhaust valves for controlling purge gas.

Abstract: An air dryer assembly for removing moisture and oil from a compressed air system includes a desiccant material received in a shell for adsorbing moisture as compressed air passes therethrough. A coalescing element is disposed between an inlet and outlet for removing oil aerosols from the compressed air. A check valve is disposed in parallel with the coalescing element and forces the compressed air to pass through the coalescing element as air flows from the inlet to the outlet. During a purge or reverse flow, compressed air bypasses the coalescing element and removes oil collected in the cartridge through the inlet.

Abstract: Disclosed is a canister for a motor vehicle. A liquid trap provided to an upper surface of a canister body is formed to have a circular configuration. A plurality of intake pipe nozzles are connected at an angle to a guide pipe which is installed through a center portion of the liquid trap, such that the intake pipe nozzles extending in a radial direction are separated one from another by a predetermined angle along a circumferential direction. A bottom wall of the liquid trap is formed such that an upper surface of the bottom wall is inclined downward from a center portion thereof toward an edge portion thereof. A diffusion device is disposed directly below the liquid trap to uniformly distribute evaporated gas to be introduced into the canister body.

Abstract: A multilayer filter assembly for use inside an electronic enclosure, such as a hard disk drive enclosure containing a rotating disk, is disclosed. The filter assembly provides filtration of air entering the enclosure, as well as air circulating within the enclosure. The filter assembly is generally a single-piece unit that can be formed without a rigid frame, thus allowing the filter assembly to be produced at a reduced cost. In one implementation of the invention, the multilayer filter assembly contains at least two particulate removal layers covering, enclosing, and dividing at least two adsorbent regions. One of the adsorbent regions is configured to be placed flush against an interior wall of the electronic enclosure to allow air to flow in and out of the enclosure, while the other adsorbent region is configured to be placed in an upright position in the enclosure with exposed surfaces that allow airflow through this portion of the filter assembly.

Abstract: An adsorbent capsule including a core of pressed adsorbent material having a water-insoluble binder, and a water-vapor or permeable coating of water-based resin, namely, hydroxypropylmethylcellulose.

Abstract: A breather bag filter assembly for use with an electronic enclosure, such as a hard disk drive enclosure containing a rotating disk, is disclosed. The filter assembly provides filtration of air entering and exiting an electronic enclosure through a breather hole. The filter assembly is a deformable sealed cavity that exchanges air with the drive enclosure as the air pressure inside the drive enclosure fluctuates. In one implementation of the invention the filter assembly contains three layers of material. Two layers of material form the exterior of the filter assembly surrounding a third layer that is composed of an adsorbent material.

Abstract: A dehumidifying agent of coating film delamination type, characterized in that it comprises a package formed by using, at least partly, a sheet having a double layer structure, wherein a film unsusceptible to moisture permeation is arranged on the surface side and a moisture-permeable film is arranged on the inner side, and a deliquescent salt filled in the package, and it is subjected to use through delaminating the film unsusceptible to moisture permeation. The dehumidifying agent can be packaged with simplicity and ease and can be stored for a long period of time, and as a result, can be provided with improved economy.

Abstract: The blue smoke control collector system is used for the collection of the blue haze which is actually comprised of tiny oil droplets that hover over hot asphaltic concrete mix. The system is designed to collect and filter the air generated at hot mix asphalt transfer points, asphaltic concrete silo loading areas and truck loading areas and to remove the oil therefrom. Oil captured in the system settles into a plenum and is then drained therefrom for suitable disposal. The filtered air can be released in to the atmosphere. An optional activated charcoal filter stage can be included to reduce odor in the released air.

Abstract: A pressure swing adsorption (PSA) system including a first group of PSA modules having a plurality of first PSA modules, and a second group of PSA modules having a plurality of second PSA modules. The system includes a feed gas manifold, a product manifold, and a waste manifold connected to the first PSA modules and the second PSA modules. Each first PSA module operates on a first PSA cycle in synchronization with the other first PSA modules, and each second PSA module operates on a second PSA cycle in synchronization with the other second PSA modules. The first PSA cycle is offset from the second PSA cycle. The PSA modules include a plurality of pressurized adsorbent chambers, an inlet manifold, and an outlet manifold. A rigid structure is provided that connects the inlet manifold to the outlet manifold, and structurally joins the inlet and outlet manifolds to the adsorbent chambers.

Abstract: A fluid purifying apparatus that includes a manifold that includes a first branch and a second branch, a first check valve coupled to the first branch of the manifold, and a purifier unit that includes a first end and a second end, wherein the first end is coupled to the second branch of the manifold. Also, a fluid purifying apparatus that includes a vessel that includes a first interior compartment for containing a purifier material and a second interior compartment for containment of a fluid containing impurities, wherein the first interior compartment is separated from the second interior compartment by a fluid permeable support, and a rupturable seal.

Abstract: A deodorizer mounting for engagement into a wall-mounted electrical outlet box including an adsorber unit for removing gases and odors from the ambient atmosphere, a generally L-shaped bracket including a horizontal leg and a vertical leg, a cover plate having a front side and a rear side, at least one prong, mounted to and extending perpendicularly from the rear side of the cover plate, sized and spaced to engage the female receptacle of the electrical outlet box, and a means to affix the front side of the cover plate to the vertical leg of the L-shaped bracket. A mounting device and method of installation obviates or at least reduces the poor aesthetics of conventional wall-mounted adhesive units and the relatively high replacement costs for non-securable room deodorizers.

Abstract: A granular composite material for recovering platinum particles from reaction gas flow in nitric acid production, comprising 50-75% calcium oxide by weight; 20-35% of magnesium oxide by weight; and 5-15% by weight of at least one chloride selected from the group consisting of calcium chloride and magnesium chloride; and a method of recovering platinum particles from reaction gas flow in nitric acid production comprising passing the reaction gas through a layer of a sorbent to absorb platinum particles, the sorbent being formed by the granular composite material described above, and extracting the absorbed platinum particles from the sorbent.

Abstract: A storage apparatus has a container having an inlet, an outlet and a regeneration air opening. Active carbon is provided as the storage medium in the container. Furthermore, a monolith is disposed in the container.

Abstract: An onboard hydrogen storage unit with heat transfer system for a hydrogen powered vehicle. The system includes a hydrogen storage vessel containing a hydrogen storage alloy configured to receive a stream of hydrogen and provide hydrogen for use in powering a vehicle. During refueling a cooling/heating loop is used to remove the heat of hydride formation from the hydrogen storage alloy and during operation of the vehicle the heating/cooling loop is used to supply heat to the hydrogen storage alloy to aid in hydrogen desorption.