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7615104 |
Fuel deoxygenation system with multi-layer oxygen permeable membrane
A fuel system for an energy conversion device includes a deoxygenator system with an oxygen permeable membrane formed from a multiple of layers. The layers include a sealant layer, an oxygen...
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7611568 |
Liquid-gas separator for direct liquid feed fuel cell
A liquid-gas separator for a direct liquid feed fuel cell includes: a housing having an open hole; a gas extracting membrane that covers the open hole and transmits only the gas; a liquid...
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7591878 |
Membrane gas separation
The invention relates to gas separation, in particular to separation of CO 2 from CO 2 -rich liquids, particularly from CO 2 absorption liquids used in the removal of CO 2 from off-gases or...
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7572321 |
Membrane, method of making same and heat exchanger furnished with said membrane
A membrane 12 that exhibits superior condensation resistance regardless of the type of moisture-permeable resin, that has satisfactory adhesion between a porous film and a reinforcing member, and...
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7556677 |
Solvent resistant asymmetric integrally skinned membranes
There is provided an asymmetric integrally skinned membrane comprising a polyimide and another polymer selected from the group consisting of polyvinylpyrrolidone, sulfonated polyetheretherketones...
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7537646 |
Fuel system and method of reducing emission
A fuel system includes a fuel deoxygenator for removing oxygen from a liquid fuel. A vaporizer is in fluid communication with the fuel deoxygenator. The vaporizer vaporizes at least a portion of...
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7510595 |
Metal oxide nanoparticle filled polymers
The present invention includes a method, composition and apparatus for forming a nanoparticle filled polymer having similar gas selectivity and greater gas permeability than the native polymer. The...
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7497896 |
Method of treating a gas mixture comprising propane and propylene
Methods for treating a gas mixture of at least propylene and propane, in order to separate the propylene from the propane. The gas mixture is brought into contact with a membrane enables the...
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7491262 |
Silver nanoparticle/polymer nanocomposite membranes for olefin/paraffin separation and method of preparing the same
There is provided a nanocomposite membrane comprising an Ag-nanoparticle/polymer nanocomposite, in which the Ag-particles are uniformly dispersed in the polymer matrix, and a support membrane for...
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7485173 |
Cross-linkable and cross-linked mixed matrix membranes and methods of making the same
The present invention is for novel high performance cross-linkable and cross-linked mixed matrix membranes and the use of such membranes for separations such as for CO 2 /CH 4 , H 2 /CH 4 and...
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7455706 |
Filter system for electronic equipment enclosure
A filter system including a method for self cleaning the filter system of an electronic equipment enclosure where air flow is monitored either by monitoring fan performance of air flow velocity...
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7422623 |
Separation membrane by controlled annealing of polyimide polymers
This abstract discusses membranes needed to separate fluids for the production of oxygen-enriched air, nitrogen-enriched-air, for the separation of carbon dioxide from hydrocarbons, and the...
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7393391 |
Fabrication of an anisotropic super hydrophobic/hydrophilic nanoporous membranes
Anisotropic hydrophobic/hydrophilic nanoporous membranes and methods of forming anisotropic hydrophobic/hydrophilic nanoporous membranes are disclosed. The method of forming the nanoporous membrane...
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7393388 |
Spiral wound fuel stabilization unit for fuel de-oxygenation
A deoxygenator includes a plurality of permeable membranes spirally wound about an exhaust tube for removing dissolved oxygen from a hydrocarbon fuel. The permeable membrane is spirally wrapped...
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7393383 |
Separation membrane made from blends of polyimide with polyamide or polyimide-amide polymers
Membranes are used to separate fluids for the production of oxygen-enriched air, nitrogen-enriched-air, for the separation of carbon dioxide from hydrocarbons, and the separation of hydrogen from...
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7344578 |
Breather valve device for the container for an electronic control unit
A breather valve device for a container for an electronic control unit, includes a support structure including, a substantially planar wall having first and second surfaces intended to face...
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7303609 |
Manufacture of polyimide-hollow fibres
A process for the manufacture of a polyimide hollow fibre comprising: (i) providing a dope solution comprising one or more polyimides dissolved in a solvent comprising 60-100 wt %...
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7291204 |
Separation membrane module with hollow fiber and a method of making the same
A separation membrane module having hollow fibers, wherein a plurality of hollow fibers are heated and melted to bond and thermally fuse the external surfaces of the hollow fibers with each other;...
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7264650 |
Ultrahigh-selectivity oxygen enrichment filled elastomeric silicone polymer membrane incorporating nanofillers
A semipermeable separation element includes (a) a porous substrate, and (b) a film formed on the microporous substrate; the film comprising a silicone elastomer and a nanoparticle filler. The film...
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7247191 |
Crosslinked and crosslinkable hollow fiber membrane and method of making same utility
A composition of and a method of making high performance hollow fiber membranes is described. The membranes have a high resistance to plasticization by use of a predetermined amount of...
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7179322 |
Oxygen and nitrogen enriched atmospheres in aircraft
A method of supplying oxygen rich air to the passengers and crew on board a passenger aircraft by use of a highly permeable oxygen enrichment unit, wherein the fiber tubes of the hollow fiber...
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7166148 |
Gas separation membranes
A method of producing composite, hollow fibre gas separation membranes, wherein external surfaces of the porous hollow fibre tubes used in the construction of the membranes are subjected to a...
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7166146 |
Mixed matrix membranes with small pore molecular sieves and methods for making and using the membranes
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...
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7138006 |
Mixed matrix membranes with low silica-to-alumina ratio molecular sieves and methods for making and using the membranes
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...
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7097682 |
Ventilation filter medium for container, and container and container cap equipped with ventilation filter medium
The present invention provides a culture container and a cap for a container having a ventilation filter medium or a medium similar thereto that can exchange carbon dioxide gas in the culture...
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7083660 |
Casing member and method for manufacturing the same
A connector casing E required to have a sealing property includes a cover 2 . The cover 2 has a cover main body 10 provided with a large vent hole H 0 passing through the connector casing E...
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7074256 |
Phosphazene membranes for gas separations
A polyphosphazene having a glass transition temperature (“T g ”) of approximately −20° C. or less. The polyphosphazene has at least one pendant group attached to a backbone of the...
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7025804 |
Method for separating hydrocarbon-containing gas mixtures using hydrocarbon-resistant membranes
A method of separating or concentrating hydrocarbon-containing gas mixtures such as hydrogen from hydrocarbons, carbon dioxide from hydrocarbons, nitrogen from hydrocarbons, and hydrocarbons from...
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7018445 |
Polyimide blends for gas separation membranes
The present invention provides a selectively gas permeable membrane that has a superior combination of permeability and selectivity. The membrane composition includes a Type 1 copolyimide uniformly...
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6997971 |
Cross-linked polybenzimidazole membrane for gas separation
A cross-linked, supported polybenzimidazole membrane for gas separation is prepared by reacting polybenzimidazole (PBI) with the sulfone-containing crosslinking agent...
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6946015 |
Cross-linked polybenzimidazole membrane for gas separation
A cross-linked, supported polybenzimidazole membrane for gas separation is prepared by layering a solution of polybenzimidazole (PBI) and α,α′dibromo-p-xylene onto a porous support and...
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6923846 |
Method of preparing composite gas separation membranes from perfluoropolymers
A method for fabricating a composite membrane includes coating a substrate, such as, for example, an asymmetrical porous hollow fiber substrate, with a solution which includes a perfluorinated...
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6896717 |
Gas separation using coated membranes
A membrane-based process for separating mixtures of target gases if the gas mixture also contains C 3+ hydrocarbon vapors. The process uses gas-separation membranes having a base membrane and a...
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6860920 |
Block polyester-ether gas separation membranes
Gas separation membranes formed from polyester-polyether block copolymers which are useful for separating gases from gas mixtures. The membranes and processes are especially suited for separating...
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6843829 |
Block polyurethane-ether and polyurea-ether gas separation membranes
Gas separation membranes formed from polyether-urethane or polyether-urea block copolymers are useful for separating gases from gas mixtures. The membranes and processes are especially suited for...
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6814780 |
Hollow fiber membrane gas separation cartridge and gas purification assembly
A hollow fiber membrane gas separation apparatus of a compact design suitable for separation and purification of gases is disclosed. The apparatus comprises an outer housing that consists of a...
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6790263 |
Polymide gas separation membranes
Soluble polyamic acid salt (PAAS) precursors comprised of tertiary and quaternary amines, ammonium cations, sulfonium cations, or phosphonium cations, are prepared and fabricated into membranes...
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6790262 |
Contactor for debubbling an ink
The present invention is directed to a membrane contactor for debubbling (or degassing) a liguid. The membrane contactor comprises a perforated core tube, a plurality of hollow fiber membranes...
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6755893 |
Method for high-pressure gas separation
In a method for the separation of supercritical gas from substances dissolved in the gas with a membrane through which the gas passes while the substances dissolved in the gas is retained, a...
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6723152 |
Gas separation using membranes formed from blends of perfluorinated polymers
A preferred gas separation membrane made from a blend of a copolymer of 2,2-bis(trifluoromethyl)-4,5-difluoro-1,3-dioxole (BDD) and tetrafluoroethylene (TFE) with a...
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6716270 |
Polyimide amic acid salts and polyimide membranes formed therefrom
The invention relates to preparation and uses of novel polymeric materials, polyimide amic acid salts (PIAAS). The use of these materials for the fabrication of fluid separation membranes is...
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6709492 |
Planar membrane deoxygenator
A fuel deoxygenator includes a plurality of fuel plates defining fuel passages through a housing. A permeable membrane supported by a porous substrate is in contact with fuel flowing through the...
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6709491 |
Gas separation membrane and method of producing the same
The object of the present invention is to provide a novel gas separation membrane having a high gas permeability and a high gas selectivity, and a method of producing the same. The present...
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6663805 |
Process for making hollow fiber mixed matrix membranes
Isopycnic or asymmetric mixed matrix hollow fiber membranes for gas separation can be made by a continuous spinning process. Mixed matrix membranes are characterized by a continuous phase of...
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6660062 |
Chemical modification of polyimides
A process is provided for chemically modifying a dual-layer hollow fibre, wherein the fibre comprises a first layer consisting essentially of a polyimide and a second layer consisting essentially...
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6613131 |
Gas-liquid separation membrane and production method thereof
A gas-liquid separation membrane is provided with high reliability and performance while having gas-permeable pores formed independently of each other in even pore size and in uniform distribution....
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6602415 |
Polymeric membrane for separation of fluids under elevated temperature and/or pressure conditions
A polymeric composite may be used for forming fluid separation membranes. The fluid separation membranes may go through a separation selectivity maximum as a function of operating conditions (e.g.,...
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6579342 |
Oleophobic membrane materials by oligomer polymerization for filter venting applications
Oleophobic and hydrophobic filters for filter venting applications are made by forming a fluorosulfone coating on the surface of a filtration substrate. The filters have high water penetration...
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6544316 |
Hydrogen gas separation using organic-vapor-resistant membranes
A process for separating hydrogen from a multicomponent gas mixture containing hydrogen and a hydrocarbon, using gas-separation membranes selective for hydrogen over the hydrocarbon. The membranes...
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6540813 |
Method of preparing composite gas separation membranes from perfluoropolymers
A method for fabricating a composite membrane includes coating a substrate, such as, for example, an asymmetrical porous hollow fiber substrate, with a solution which includes a perfluorinated...
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