Abstract: An air filtration system is provided. The air filtration system embodies filtration material supported by a frame, wherein the air filtration system provides two framed filtration materials sandwiching a fabric filter. Such framework may be removably engaged through magnetic forces. The filtration material may hold and/or carry electrostatic forces and/or magnetostatic forces induced through a current from an electrical power source and/or magnetic forces of the magnetics.

Abstract: A hydrogen gas producing apparatus includes a porous body (100) and a mixed gas source (300). The porous body (100) is permeable to hydrogen gas and carbon dioxide gas, and has a property of being more permeable to hydrogen gas than carbon dioxide gas. The mixed gas source (300) causes a mixed gas including carbon dioxide gas and hydrogen gas to flow into the porous body (100) under a condition that a pressure gradient represented by (P1?P2)/L is below 50 MPa/m, where L represents the length of the porous body (100) in a direction in which the mixed gas permeates; P1 represents an inflow pressure of the mixed gas into the porous body (100); and P2 represents an outflow pressure thereof from the porous body (100).

Abstract: A dual filter (100) for removing one or more components from a fluid flow is provided. The dual filter (100) comprises a first filter media (112a) and a second filter media (112b) respectively disposed in a first conduit (114a) and a second conduit (114b), and at least one manifold (120, 130) coupled to a pair of openings (116a,b) of the conduits (114a, b) wherein the at least one manifold (120, 130) is adapted to monitor and control the fluid flow through one of the filter media (112a,b).

Abstract: A multilayer filter screen and the manufacturing method thereof are provided. The multilayer filter screen includes a conductive powder layer and a plastic powder layer. The conductive powder layer and the plastic powder layer are stacked up through a solidifying process. Therefore, the mechanical structural strength and the anti-static electricity function of the multilayer filter screen are improved.

Abstract: The present invention relates to a method for reducing a flow of soil air to the indoor air in a building (1), wherein the building comprises at least one wall (2), which wall comprises a permeable channel (23) connected with soil air, wherein the method comprises achieving a flow stop (24) for the soil air in the permeable channel (23). The invention also pertains to a device to reduce the flow of soil air to indoor air in a building (1).

Abstract: The invention relates to a system for transferring mass with the capturing of solids via the induction of an electromagnetic field, comprising a plurality of cells formed in a plurality of discs forming an assembly of means for generating a membrane and electromagnetic field. The liquid membranes formed in this assembly collapse upon contact with a gaseous current. The collapsed liquid material covers the suspended particles and removes same via decanting, and the cells of the membrane also increase the speed of the gaseous current and cause same to impinge on the surface of the liquid, thereby improving the transferral of the vapour to the gas. The system also has means for generating an electromagnetic field that are electrically energised in order to provide an electromagnetic field to the assembly, such that the solids circulating after the rupture of the liquid membrane are attracted to each disc depending on the ionic behaviour thereof.

Abstract: A semipermeable membrane according to an embodiment of the present invention includes a semipermeable membrane layer containing an amorphous resin as a main component, and a sheet-like supporting body that supports the semipermeable membrane layer. The supporting body has a porous first supporting layer and a porous second supporting layer laminated on one of surfaces of the first supporting layer. The second supporting layer has a smaller mean flow pore diameter than the first supporting layer. The second supporting layer is impregnated with the semipermeable membrane layer. A ratio of the mean flow pore diameter of the second supporting layer to the mean flow pore diameter of the first supporting layer is preferably 1/1,000 or more and ? or less. The mean flow pore diameter of the first supporting layer is preferably 0.05 ?m or more and 20 ?m or less, and the mean flow pore diameter of the second supporting layer is preferably 0.01 ?m or more and 1 ?m or less.

Abstract: Gas separation modules and methods for use including an integrated adsorbent and membrane. In certain refining applications, it is paramount to obtain high purity product gases. Adsorbent beds are effective at removing certain contaminants, such as CO2, from gas streams containing product and contaminant constituents to form a product-rich stream. The integrated membrane permits a further separation of products from any unadsorbed contaminant to produce a high purity product, such as hydrogen, stream. The gas separation modules described herein include stacked, radial, and spiral arrangements. Each modules includes a configuration of feed and cross-flow channels for the collection of contaminant gases and/or high purity product gases.

Abstract: The present technology is generally related to a filter assembly. The filter assembly has a first layer has a base layer defining a first perimeter region and a region central to the first perimeter region. A first adhesive is disposed on a first surface of the first layer substantially within the central region, and first adsorbent beads are coupled to the first adhesive. A second layer has a first sheet of filter material having a second perimeter region, wherein the first perimeter region and the second perimeter region are bonded. A third layer has a second sheet of filter material having a third perimeter region, wherein the first perimeter region and the third perimeter region are bonded. The base layer, second layer, and third layer are substantially coextensive.

Abstract: Described herein is a graphene material such as graphene oxide and polymer based selectively permeable element that provides selective permeability between polar and non-polar molecules such as fluid, gas or vapor. The methods for making these selectively permeable elements and related devices are also described.

Abstract: Provided is a nanofiber vent device for a urea water tank including a filter unit for discharging gas generated in the tank main body and preventing external dust, foreign matter, and moisture from flowing into the tank main body, as a vent device that is installed in a tank main body storing urea water and discharging gas inside the tank main body to the outside.

Abstract: An air filter medium includes a first porous PTFE membrane and a second porous PTFE membrane. An average fiber diameter of fibers included in the first porous PTFE membrane is 0.24 to 0.45 ?m, an average fiber diameter of fibers included in the second porous PTFE membrane is 0.04 to 0.23 ?m, the air filter medium has a first main surface and a second main surface, and the first porous PTFE membrane and the second porous PTFE membrane are arranged so that an air flow moving from the first main surface to the second main surface passes through the first porous PTFE membrane and subsequently through the second porous PTFE membrane.

Abstract: A carbon dioxide capture system includes a first heat exchanger that exchanges heat between an exhaust stream and a lean carbon dioxide effluent stream. The carbon dioxide capture system also includes a second heat exchanger in flow communication with the first heat exchanger. The second heat exchanger is configured to cool the exhaust stream such that a condensate is formed, and the second heat exchanger is configured to channel a condensate stream for injection into the lean carbon dioxide effluent stream. A first turboexpander including a first compressor is driven by a first turbine. The first compressor is coupled in flow communication with the first heat exchanger. The first turbine is coupled in flow communication with the first heat exchanger and configured to expand the lean carbon dioxide effluent stream. The carbon dioxide capture system further includes a carbon dioxide membrane unit coupled in flow communication with the first compressor.

Abstract: A process for producing nitrogen-rich air by feeding high temperature air at 150° C. or more to an air separation membrane module is described. After being placed at 175° C. for two hours, the air separation module exhibits a shape-retention ratio of 95% or more in one embodiment. The nitrogen-rich air can be fed to a fuel tank for an aircraft, for example.

Abstract: A header containing a multi-toothed tab forming a series of ratchets formed therein cooperatively engages a lanced section extending across the web of the cross section and depressed toward the inside of the cross section a selected depth that is greater than the tab thickness. One edge of the lanced and formed surface is formed with an upturned lip that functions as a pawl for the ratchets on the tab. Insertion of the tab into the lanced section of the receiver, each ratchet will be forced over the paw of the lanced section. The lanced section acts as a spring to allow the ratchet to pass over the paw and then pop back to its previous location ready to be flexed again for the next ratchet. The header includes a longitudinal channel having a base channel and upwardly extending channel sidewalls and a pair of spaced apart aligned longitudinal reinforcement ribs extending along said longitudinal channel base.

Abstract: An ultrathin high permselectivity carbon molecular sieve membrane (CMSM) for industrial gas separations is provided. The CMSM includes porous metal or ceramic supports to provide superior stability at high temperatures, pressures and chemical environments. The CMSM also offers the potential for cost-effective gas processing while overcoming disadvantages found in alternative media that are fragile and susceptible to shock due to thermal cycling and prone to end-sealing problems under industrial conditions.

Abstract: Provided are a CO2 gas separation membrane, a method for manufacturing the same, and a carbon dioxide gas separation membrane module including the same, the CO2 gas separation membrane including: a first layer (A) containing at least one alkali metal compound selected from the group consisting of an alkali metal carbonate, an alkali metal bicarbonate and an alkali metal hydroxide, and a first resin in which a polymer having a carboxyl group has been crosslinked; a second layer (B) containing at least one of the alkali metal compounds, and a second resin having a structural unit derived from a vinyl ester of a fatty acid; and a hydrophobic porous membrane (C).

Abstract: The present disclosure relates to a filter apparatus for filtering liquid from a gas, the apparatus having a first housing having a gas inlet and a gas outlet; a first filter media disposed in the first housing; a second filter media disposed in the housing; and a second housing forming a first collection basin disposed in the flow path between the first filter media and the second filter media, so that a path is defined for the gas flowing from the inlet, through the first filter media, past the collection basin, through the second filter media, and to the outlet. The present disclosure also relates to a method of passing a gas through a coalescing filter media and through a hydrophobic filter media.

Abstract: A membrane contactor for degassing a gas-entrained liquid and to discharge gas-depleted liquid includes: a shell has two ends; a cap closes one shell end; a membrane extends between the shell ends and is enclosed within the shell; a first center tube discharges the gas-entrained liquid into the membrane; a second center tube discharges the gas-depleted liquid from the contactor; and one tube surrounds the other tube. The membrane may be a flat sheet membrane or a hollow fiber membrane. The cap has an in let in fluid communication with the first center tube and an outlet in fluid communication with the second center tube. A baffle may be located within the membrane between the shell ends.

Abstract: The technology disclosed herein relates to a vent assembly having a vent housing that defines a first airflow pathway, a second airflow pathway, and a third airflow pathway. The first airflow pathway is configured for fluid communication with an interior of an enclosure. The second airflow pathway is configured for fluid communication with the external environment, and the third airflow pathway extends between the first airflow pathway and the second airflow pathway. A membrane is coupled to the vent housing such that the second airflow pathway and the third airflow pathway are in communication through the membrane. Coalescing filter media is disposed within the vent housing such that the third airflow pathway and the first airflow pathway are in communication through the coalescing filter media. The vent assembly defines a spacing region between the coalescing media and the membrane.