Abstract: A method for recovering CO2 in the Rectisol process. The method includes at least the following steps: performing reduced-pressure flash distillation treatment on the CO2-rich methanol liquid, and outputing the CO2 desorbed gas obtained after the reduced-pressure flash distillation treatment as a product gas; performing heat exchange flash distillation treatment on a first methanol treatment liquid obtained after the reduced-pressure flash distillation treatment, and outputing the CO2 desorbed gas obtained after the heat exchange flash distillation treatment as a product gas; performing vacuum flash distillation treatment on a second methanol treatment liquid obtained after the heat exchange flash distillation treatment, and outputing the CO2 desorbed gas obtained after the vacuum flash distillation treatment as a product gas.

Abstract: A membrane-based fluid degassing system is arranged for automated control to a degassing efficiency set point, so that fluid is degassed only as necessary. The control variable may be assigned as the degassing environment, to provide the gas transfer driving force suitable to appropriately degas the fluid. By avoiding unnecessary degassing of the fluid, mobile phase pervaporation through the membrane is minimized.

Abstract: Provided is a hollow fiber membrane module that exhibits excellent durability even when a chemical such as a radical polymerizable compound is used for a separation or mixing process. Also provided is a method for producing the hollow fiber membrane module in a highly productive manner. More specifically, there is provided a hollow fiber membrane module at least including a tubular body, a cap, a hollow fiber membrane, and an end seal portion, wherein at least a liquid contacting portion of the end seal portion is sealed with a cured product of a curable resin composition including an epoxy resin, and wherein the epoxy resin includes a polyglycidyl ether of a polycondensate of an aromatic compound containing a phenolic hydroxyl group and an aromatic compound containing a formyl group and a phenolic hydroxyl group, and there is provided a method for producing the module.

Abstract: A method of operating a fuel oxygen reduction unit for a vehicle or a gas turbine engine of the vehicle is provided. The fuel oxygen reduction unit including a contactor and a fuel gas separator, and further defining a stripping gas flowpath in flow communication with a stripping gas inlet of the contactor and a stripping gas outlet of the fuel gas separator. The method includes receiving data indicative of a parameter of a stripping gas flow through the stripping gas flowpath or of a component in flow communication with the stripping gas flow through the stripping gas flowpath; and determining an operability condition of the fuel oxygen reduction unit, or a component operable with the fuel oxygen reduction unit, based on the data received indicative of the parameter of the stripping gas flow or of the component in flow communication with the stripping gas flow.

Abstract: A fuel oxygen conversion unit includes a contactor; a fuel gas separator, the fuel oxygen conversion unit defining a circulation gas flowpath from the fuel gas separator to the contactor; and an isolation valve in airflow communication with the circulation gas flowpath for modulating a gas flow through the circulation gas flowpath to the contactor.

Abstract: A composition of five parts by mass of chitosan and one part graphene oxide is suspended in water. The composition may be used to form filtration layers of any size or shape and may be reinforced by additional layers. The composition may be used to construct a large filtration apparatus of any size or shape and may be used to form highly resilient, antimicrobial structures and surfaces for a variety of applications.

Abstract: A gas inerting system for an aircraft includes a fuel tank configured to contain a liquid fuel, a fuel vaporization system in fluid communication with the fuel tank and configured to receive the liquid fuel from the fuel tank, a source of air in fluid communication with the fuel vaporization system and configured to deliver air into the liquid fuel to produce the fuel vapor, a heat exchanger in fluid communication with the source of air at a location upstream of the fuel vaporization system, and a catalytic oxidation unit in fluid communication with the fuel vaporization system. The heat exchanger is configured to cool the air from the air source. A fluid connection is configured to deliver the fuel vapor to the catalytic oxidation unit.

Abstract: A membrane gas-liquid contactor is arranged to define a fluid flow path for contact with a membrane in a manner to improve degassing efficiency. A degassing module housing the membrane is arranged with flow fields for distributing the fluid flow throughout the membrane contact area. The distributed fluid flow may have a uniform membrane contact opportunity.

Abstract: Methods for enzyme-enhanced CO2 capture include contacting a CO2-containing gas with an aqueous absorption solution at process conditions—such as high temperature, high pH, and/or using carbonate-based solutions—in the presence of Thermovibrio ammonificans carbonic anhydrase (TACA) or functional derivative thereof for catalyzing the hydration reaction of CO2 into bicarbonate and hydrogen ions and/or catalyzing the desorption reaction to produce a CO2 gas. The TACA may be provided to flow with the solution to cycle through a CO2 capture system that includes an absorber and a stripper.

Abstract: A carbon dioxide capturing apparatus and process uses a self-generating power means that uses carbon dioxide in combustion exhaust gas through the convergence of a carbon dioxide absorption tower. The capturing apparatus and process also relies on ionic generator associated technology using a concentration difference between seawater and freshwater. The capturing apparatus and process result in increased production efficiency for electric energy and reduced costs for a carbon dioxide capturing process by increasing a concentration difference using an absorbent liquid for absorbing carbon dioxide and, at the same time, electricity is obtained through carbon dioxide which is a greenhouse gas.

Abstract: An oxygen removal system for removing dissolved oxygen from fuel within a fuel system includes a first housing, a second housing, a membrane filter, a piston assembly, and an outlet cap. The first housing extends along a first axis between a first housing first end and a first housing second end. The second housing is disposed about the first housing. The membrane filter is disposed between the first housing and the second housing. The piston assembly has a piston housing that is disposed about the second housing. The piston assembly is arranged to generate a vacuum to remove a fluid from the membrane filter.

Abstract: Provided is a pump apparatus, having an upstream pump, a filter, and a downstream pump being inserted into a processing liquid flow path in this order. The downstream pump has an inlet higher in level than an outlet of the upstream pump and higher in level than an outlet of the filter. That is, the downstream pump is disposed higher in level than the upstream pump and the filter. Accordingly, this allows a processing liquid to flow upward. Even when air bubbles are generated in the processing liquid, buoyancy causes the air bubbles to move upward in the processing liquid flow path and collect the air bubbles on a downstream side. Consequently, the air bubbles are readily vented from the processing liquid flow path.

Abstract: A fluid distribution device for a gas-liquid contactor the device having a first side, a second side and a plurality of through-holes extending from the first side to the second side, through which holes a first fluid can flow. The fluid distribution device further having an interior, which is delimited by the first side and the second side and which is sealed in a fluid-tight manner in relation to the through-holes, a plurality of openings, which connect the interior to the second side, and a fluid connection, through which a second fluid can be introduced into or evacuated from the interior. A gas-liquid contactor having a fluid distribution device of this type and to a method for adding a gas to a liquid is also disclosed.

Abstract: The inflation system includes a pump and a dehumidifier fluidly connected between the pump and a reservoir, such as a tire.

Abstract: The present invention includes a system and process to reduce amine mist emissions (or MEA) from carbon capture systems using colloidal gas aphrons (CGA), and includes a method for separating and recovering an amine solvent (e.g., in the form of entrained droplets/mist and/or fine aerosol particles) from a carbon dioxide scrubbed flue gas stream exiting a carbon capture system (e.g., oil-fired power plants, coal-fired power plants, and/or natural gas combined cycle plants).

Abstract: There is provided a system for performing a chromatographic separation of an analyte, methods of using the system to separate at least one component of an analyte and an eluent generator of use in the system. An exemplary system comprises: (a) an eluent generator comprising: (i) a housing configured to be pressurizable by gas, comprising an annular void defined by the housing, and a gas inlet for the gas and a gas outlet for the gas in fluid communication with the annular void; (ii) a membrane permeable to the gas defining an eluent flow channel disposed within the annular void, the eluent flow channel having an eluent precursor fluid inlet and an eluent outlet; (iii) a source of gas in fluidic communication with the gas inlet; (iv) a source of the eluent precursor fluid; and (b) a chromatography column disposed downstream of and in fluidic communication with the eluent outlet.

Abstract: An integrated fuel combustion system with gas separation (adsorptive, absorptive, membrane or other suitable gas separation) separates a portion of carbon dioxide from a combustion gas mixture and provides for recycle of separated carbon dioxide to the intake of a fuel combustor for combustion.

Abstract: A vacuum assembly includes a housing, a movable assembly positioned within the housing, and a biasing mechanism coupling the movable assembly to the housing. The movable assembly is movable between a first position and a second position within the housing to create a low pressure area between the housing and a first portion of the movable assembly.

Abstract: A method including acidifying a solution including dissolved inorganic carbon; vacuum stripping a first amount of a carbon dioxide gas from the acidified solution; stripping a second amount of the carbon dioxide gas from the acidified solution; and collecting the first amount and the second amount of the carbon dioxide gas. A system including; a first desorption unit including a first input connected to a dissolved inorganic carbon solution source to and a second input coupled to a vacuum source; and a second desorption unit including a first input coupled to the solution output from the first desorption unit and a second input coupled to a sweep gas source.

Abstract: A gas turbine engine includes a multi-stage fuel injection system including at least a first fuel injection stage and a second fuel injection stage, a first fuel reservoir fluidly connected to the first fuel injection stage and fluidly connected to a selective valve, and a second fuel reservoir fluidly connected to the selective valve. The selective valve connects one of the first fuel reservoir and the second fuel reservoir to the second fuel injection stage.

Abstract: The present invention relates to a external-perfusion hollow-fiber membrane module containing a hollow-fiber membrane bundle including a plurality of hollow-fiber membranes; and a casing that houses the hollow-fiber membrane bundle, wherein the hollow-fiber membrane bundle has one end that is fixed to an inside of the casing by a potting portion in an open state, and the external-perfusion hollow-fiber membrane module is configured to perform degassing on a gas contained in a liquid inside the casing, the gas being introduced into an inside from an outer surface of the hollow-fiber membrane.

Abstract: In some embodiments, the present disclosure pertains to methods of capturing a gas from an environment by associating the environment (e.g., a pressurized environment) with a porous carbon material that comprises a plurality of pores and a plurality of nucleophilic moieties. In some embodiments, the associating results in sorption of gas components (e.g., CO2 or H2S) to the porous carbon materials. In some embodiments, the methods of the present disclosure also include a step of releasing captured gas components from porous carbon materials. In some embodiments, the releasing occurs without any heating steps by decreasing environmental pressure. In some embodiments, the methods of the present disclosure also include a step of disposing released gas components and reusing porous carbon materials. Additional embodiments of the present disclosure pertain to porous carbon materials that are used for gas capture.

Abstract: A gas separation process for treating exhaust gases from multiple combustion sources. The invention involves directing an exhaust gas stream from one combustion step to a carbon capture step. An off-gas stream depleted in carbon dioxide from the carbon capture step is mixed with a second exhaust stream from a second combustion step to form a mixed gas stream. The mixed gas stream is passed as a feed stream across the feed side of a membrane that is selectively permeable to carbon dioxide over nitrogen and carbon dioxide over oxygen. A sweep gas stream, usually air, flows across the permeate side, and picks up the preferentially permeating carbon dioxide. The permeate stream withdrawn from the permeate side of the membrane is then recycled back to the combustor.

Abstract: A dual compartment bioreactor system includes a heterotrophic bioreactor, an autotrophic bioreactor, and a membrane between the autotrophic bioreactor and the heterotrophic bioreactor. The autotrophic bioreactor includes a transparent outer wall. Each population benefits from the products of the metabolism of the other. Methods for wastewater treatment and algal production utilize the system.

Abstract: In an apparatus and method for treating a wafer-shaped article, a spin chuck is provided for holding and rotating a wafer-shaped article. A first liquid dispenser communicates with a supply of an organic liquid and is positioned so as to dispense the organic liquid onto a surface of a wafer-shaped article. A degasifying unit is positioned upstream of the first liquid dispenser and downstream of the supply. The degasifying unit is configured to reduce a dissolved gas content of the organic liquid to less than 20% of a saturation concentration at a pressure of 1 bar.

Abstract: Versions of the invention include methods for reducing microbubbles in liquids treated by heat or mass exchange devices. The exchange devices may be conditioned by having gases in crevices and surfaces displaced by a liquid. The methods can be used to prepare liquids with reduced numbers of microbubbles.

Abstract: This invention relates to high hydrocarbon resistant chemically cross-linked aromatic polyimide polymers, membranes and methods for making and using these polymers and membranes. The high hydrocarbon resistant chemically cross-linked aromatic polyimide membrane described in the present invention comprises a plurality of repeating units of a first aromatic polyimide comprising hydroxyl groups cross-linked with a second aromatic polyimide comprising carboxylic acid groups via covalent ester bonds. These membranes exhibit high permeability and selectivity in separation of mixtures of gases and liquids.

Abstract: The invention is directed to a method for separating acid gases from a gas mixture in which the gas mixture is contacted with an absorption medium which comprises water and at least one amine and has a phase-separation temperature in the range from 0 to 130° C. In addition, the invention is directed to a device which can be used for carrying out this method.

Abstract: A method of making a polybenzoxazole (PBO) membrane from a self-cross-linked aromatic polyimide polymer membrane is provided. These membranes are useful in the separation of gas mixtures and liquid mixtures. The PBO membrane is made by fabricating a self-cross-linkable aromatic polyimide polymer membrane comprising both hydroxyl functional groups and carboxylic acid functional groups; cross-linking the polymer to form a self-cross-linked aromatic polyimide polymer membrane by heating the membrane at 250° to 300° C. under an inert atmosphere; and thermal heating the self-cross-linked aromatic polyimide polymer membrane at a temperature from about 350° to 500° C. under an inert atmosphere to convert the self-cross-linked aromatic polyimide polymer membrane into a PBO membrane. A membrane coating step may be added by coating the selective layer surface of the PBO membrane with a thin layer of high permeability material.

Abstract: This invention relates to high hydrocarbon resistant chemically cross-linked aromatic polyimide polymers, membranes and methods for making and using these polymers and membranes. The high hydrocarbon resistant chemically cross-linked aromatic polyimide membrane described in the present invention comprises a plurality of repeating units of a first aromatic polyimide comprising hydroxyl groups cross-linked with a second aromatic polyimide comprising carboxylic acid groups via covalent ester bonds. These membranes exhibit high permeability and selectivity in separation of mixtures of gases and liquids.

Abstract: This invention relates to self-cross-linkable and self-cross-linked aromatic polyimide polymers, their membranes and methods for making and using these polymers and membranes. The self-cross-linkable aromatic polyimide polymer described in the present invention comprises both hydroxyl functional groups and carboxylic acid functional groups. The self-cross-linked aromatic polyimide was formed via heating the self-cross-linkable aromatic polyimide polymer at ?300° C. The self-cross-linked aromatic polyimide membranes exhibit high selectivity in separation of mixtures of gases and liquids.

Abstract: This invention relates to self-cross-linkable and self-cross-linked aromatic polyimide polymers, their membranes and methods for making and using these polymers and membranes. The self-cross-linkable aromatic polyimide polymer described in the present invention comprises both hydroxyl functional groups and carboxylic acid functional groups. The self-cross-linked aromatic polyimide was formed via heating the self-cross-linkable aromatic polyimide polymer at ?300° C. The self-cross-linked aromatic polyimide membranes exhibit high selectivity in separation of mixtures of gases and liquids.

Abstract: An elongated flow-through degassing apparatus includes an elongated gas permeable outer shell and one or more gas-permeable, liquid-impermeable elongated inner conveyance members extending within the outer shell and at least partially through a chamber defined within the outer shell. The apparatus also includes inlet and outlet junctions for securing the outer shell to the inner conveyance member. The outer shell exhibits a first permeance that is substantially greater than a second permeance of the inner conveyance member. The degassing apparatus may be sufficiently flexible so as to be readily manipulatable into desired configurations.

Abstract: A water-proof air-permeable filter (1) includes: a resin film (2) having formed therein a plurality of through pores (21); and a treated layer (3) having hydrophobicity and oil repellency, and formed on at least one of both surfaces in the thickness direction of the resin film (2) such that the treated layer (3) has openings (31) at positions corresponding to the through pores (21). The through pores (21) each have a predetermined size larger than or equal to 0.01 ?m and smaller than or equal to 10 ?m, and are uniformly distributed such that a density of the through pores falls within specific limits included in a range from 10 to 1×108 pores/mm2.

Abstract: A system and method for passive capture of ammonia in an ammonia-containing liquid effluent. The invention allows for the passage of ammonia through microporous hydrophobic gas-permeable membranes and its capture in a circulated stripping solution with concomitant production of a concentrated non-volatile ammonium salt.

Abstract: A device for degassing aqueous media has a first container containing medium to be degassed. A first line connects the first container to a degassing module and a second line connects the degassing module to a second container for receiving the degassed medium. A first non-return valve in the first line prevents backflow from the degassing module to the first container. A hydrophilic membrane in the second line prevents the passage of gas, and a branch between the degassing module and the hydrophilic membrane has a hydrophobic degassing filter for letting out gas. A third line is connected to the first line between the first container and the first non-return valve and to the second line between the second container and the hydrophilic membrane. A second non-return valve in the third line between the first non-return valve and the hydrophilic membrane prevents a flow towards the second container.

Abstract: According to one embodiment, a bubble removal apparatus includes a bubble adsorption unit and a bubble discharge unit. The bubble adsorption unit adsorbs bubbles in a liquid in a container filled with the liquid. The bubble discharge unit discharges bubbles from the container. The bubble adsorption unit includes a mesh structure. In the mesh structure, linear members are combined in a grid-like pattern. The mesh structure is configured by using the linear members including a charging member that can be charged positively.

Abstract: A composite membrane for separations includes a fabric with a non-woven array of intermingled carbon nanotubes, and a dopant incorporated with the fabric to form a non-porous, permeable composite. The composite membrane may be used to separate a target gas from a liquid by mounting the composite membrane in a housing chamber, and conditioning a permeate side of the chamber to establish a driving force for the target gas across the non-porous, permeable composite membrane.

Abstract: To absorb a volatile substance from a gas phase in a liquid absorbent, the gas phase is brought into contact with a film of an absorbent which comprises an ionic liquid and a wetting-promoting additive. The process can be used in absorption refrigerating machines.

Abstract: The present invention relates to a hydrophobic or oleophobic microporous polymer membrane having a structurally induced drip-off effect, to methods for producing the membrane according to the invention, to the use of the membrane in the sterile filtration of gaseous fluids, and to the use of the membrane as a liquid barrier in liquid-containing systems to be vented.

Abstract: A holding tank cover includes a gas permeable insulating membrane and a gas impermeable cover layer sized to overlay and conceal the gas permeable membrane. Together, the gas permeable membrane and the gas impermeable cover layer facilitate a controlled transmission of gas between an interior of the holding tank and an environment external to the holding tank.

Abstract: A degassing module is adapted for degassing a liquidous fluid at relatively high throughput flow rates. The degassing module includes a tubular separation membrane that is helically wound within an interior chamber of a degassing module housing. The helically wound tubular separation membrane is disposed in an axial flow gap of predetermined proportions that maximizes fluid flow dynamics in reducing the gas transport resistance from the liquid phase across the membrane. Typically, the helically wound tubular separation membrane is positioned in the gap with radial spacings to surfaces bounding the gap, thereby forming axial flow channels circumaxially inwardly and/or outwardly of the wound tubular membrane.

Abstract: Disclosed herein is a membrane separation apparatus that includes an integrated filter element and a membrane element housed within a single vessel. The vessel is configured to allow liquids to be trapped and removed from the vessel, and gases to flow to and through the membrane element. The apparatus is useful in the conditioning of fuel gas to separate methane from C2+ hydrocarbons.

Abstract: A system for separating fluids of a fluid mixture including a filter element operatively arranged for enabling a first component of a fluid mixture to flow therethrough while impeding flow of at least one other fluid component of the fluid mixture. An additive is configured to improve a first affinity of the filter element for the first component relative to a second affinity of the filter element for the at least one other fluid component of the fluid mixture. A method of separating fluids is also included.

Abstract: A conditioner for conditioning fuel passing therethrough includes a deoxygenator having a body in which oxygen is removed from the fuel, and a heat exchanger attaching directly to the body for moderating a temperature of the fuel.

Abstract: Apparatus for changing the concentration of a selected gas in a liquid, the apparatus comprising a flow chamber through which the liquid is passed and which comprises a wall comprising a planar separation membrane, the separation membrane being substantially impermeable to the liquid and permeable to the selected gas, characterized in that the separation member extends beyond the flow chamber and provides a seal between components of the apparatus. The apparatus is particularly useful for degassing liquids, for example HPLC eluents and analysis samples.

Abstract: In accordance with at least selected embodiments of the present invention, an improved liquid degassing membrane contactor or module includes a high pressure housing and at least one degassing cartridge therein. It may be preferred that the high pressure housing is a standard, ASME certified, reverse osmosis (RO) or water purification pressure housing or vessel (made of, for example, polypropylene, polycarbonate, stainless steel, corrosion resistant filament wound fiberglass reinforced epoxy tubing, with pressure ratings of for example, 150, 250, 300, 400, or 600 psi, and with, for example 4 or 6 ports, and an end cap at each end) and that the degassing cartridge is a self-contained, hollow-fiber membrane cartridge adapted to fit in the RO high pressure housing.

Abstract: In order to control bubble removal or mixing in a flow channel, bubble transfer between flow channels (1, 2) is controlled by disposing first flow channel (1) for flow of a first fluid of liquid or gas and second flow channel (2) for flow of a second fluid of liquid with, interposed therebetween, gas exchange unit (5) through which while no liquid can pass, a gas component can be transferred, and by providing a pressure difference between the flow channels (1, 2) with the gas exchange unit (5). By rendering the pressure of the second flow channel (2) higher than that of the first flow channel (1), any bubble transfer from the first fluid to the second fluid is prevented, or bubbles within the second fluid are transferred into the first fluid to thereby attain deaeration.

Abstract: A patterned gas permeable venting material is affixed within a venting apparatus which has an opening. The venting material forms a liquid tight, gas permeable seal of the opening. The patterned material comprises a PTFE membrane of porosity less than 80% and with a surface indentation of depth greater than 12 microns.

Abstract: A vortex separator includes a vortex chamber having a circular cross section, an inlet for delivering a fluid to the vortex chamber, a gas outlet through which gas present in the fluid exits the vortex chamber, a membrane positioned to substantially prevent liquid from passing through the gas outlet, and a liquid outlet through which liquid present in the fluid exits the vortex chamber.