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8182590 |
Ultrathin porous nanoscale membranes, methods of making, and uses thereof
A process for forming a porous nanoscale membrane is described. The process involves applying a nanoscale film to one side of a substrate, where the nanoscale film includes a semiconductor...
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8163065 |
Carbon dioxide permeable membrane
A carbon dioxide permeable membrane is described. In some embodiments, the membrane includes a body having a first side and an opposite second side; a plurality of first regions formed from a...
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8110111 |
Membrane contactor assisted extraction/reaction process employing ionic liquids
The present invention relates to a functionalized membrane contactor extraction/reaction system and method for extracting target species from multi-phase solutions utilizing ionic liquids. One...
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7938890 |
Separating gas using immobilized buffers
A layered structure can be formed having immobilized or segregated pH buffering groups that can be used to separate carbon dioxide or other gases. The pH buffering groups can be immobilized within...
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7938892 |
Producing articles that include ionic liquids
Ionic liquids can be immobilized in a membrane by, for example, bonding to a support such as a matrix, or by inclusion within a gel. Immobilized ionic liquids can be used in a number of...
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7938891 |
Using ionic liquids
Carbon dioxide or other gases can be separated from gas streams using ionic liquid, such as in an electrochemical cell. For example, a membrane can contain sufficient ionic liquid to reduce ionic...
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7922780 |
Method and apparatus for hydrocarbon reforming based on oxygen-permeable membrane
To provide a method and an apparatus for reforming a hydrocarbon with a prolonged life of an oxygen-permeable membrane and a high recovery rate. The oxygen-permeable membrane absorbs the free...
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7922795 |
Ultrathin nanoscale membranes, methods of making, and uses thereof
A nanoscale membrane exposed on opposite sides thereof and having an average thickness of less than about 100 nm, and a lateral length to thickness aspect ratio that is more than 10,000 to 1 is...
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7909911 |
Carbon dioxide permeable membrane
A carbon dioxide permeable membrane is described. In some embodiments, the membrane includes a body having a first side and an opposite second side; a plurality of first regions formed from a...
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7850764 |
Reactive membrane process for the removal of vapor phase contaminants
Generally, the present invention provides a method and apparatus for removing a vapor phase contaminant from a gas stream, thereby reducing the concentration of the vapor phase contaminant in the...
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7803337 |
Method for treating a fluid to be scrubbed
A method for treating a fluid to be scrubbed, comprising filling a scrubber with a volume of biodiesel or biomass adequate to cover a sintered permeable membrane in the reaction chamber and a bit...
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7740816 |
Method for treating gases to be scrubbed
A method for treating gases to be scrubbed, comprising filling a scrubber with a volume of lean liquid adequate to cover a sintered permeable membrane in the reaction chamber and a bit more to...
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7625427 |
Apparatus and process for carbon dioxide absorption
Carbon dioxide is separated from a gas stream using a supported carrier liquid membrane having a selected concentration of carrier species, the method being especially suitable for use in...
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7318854 |
System and method for selective separation of gaseous mixtures using hollow fibers
A system and method for separation of a gas, e.g., carbon dioxide, from a gaseous mixture using a hollow fiber membrane module. The module contains an absorbent solution that is effective in...
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6958085 |
High performance immobilized liquid membrane for carbon dioxide separations
An immobilized liquid membrane has a substrate. A plurality of capsules is disposed on the substrate. Each of the capsules is permeable to a first gas of a mixture of gasses comprising the first...
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6890372 |
Denuder assembly for collection and removal of soluble atmospheric gases
A denuder assembly is adapted for the collection and removal of a gaseous analyte from a sample gas. The denuder includes a housing including an internal cavity, a sample gas inlet fluidly coupled...
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6800118 |
Gas/liquid separation devices
A gas/liquid separation element is provided comprising: a frame having an opening therein; waterproof/moisture permeable sheets affixed to both sides thereof so as to cover the opening, whereby the...
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6666906 |
Gas dehydration using membrane and potassium formate solution
Potassium or other alkali metal formate solution is used to absorb moisture from gas through a membrane. The membrane may be supported on permeable tubes, and the potassium or other alkali metal...
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6645276 |
Solid state polymer electrolyte facilitated transport membranes containing surfactants
A facilitated transport membrane with improved permeance and selectivity to alkene-based unsaturated hydrocarbons is provided. The facilitated transport membrane includes a solid state polymer...
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6635103 |
Membrane separation of carbon dioxide
A method for the separation of carbon dioxide from a gas mixture is described in which a dendrimer selective for carbon dioxide is present in an immobilized liquid membrane, the dendrimer being...
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6526805 |
Apparatus for continuously determining volatile substances dissolved in insulating fluid
An apparatus and method are provided for continuously monitoring the operation of electrical equipment and preventing critical operational failures. The invention quantitatively determines the...
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6332913 |
Membrane module for selective gas separation
A membrane module for selective gas separation includes one or more separation units stacked one on the other, and at least one of interposed frame plates or stack-end frame plates. Each separation...
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6228145 |
Method for removing carbon dioxide from gases
A method for removing and preventing discharge into the atmosphere of carbon dioxide from combustion gases and natural gas from installations for production of oil and/or gas, wherein the...
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6156096 |
Gas separation using hollow fiber contained liquid membrane
A method of separating at least one gaseous component from a feed comprising a mixture of gases using a liquid membrane barrier and a sweep fluid is disclosed that includes selecting a sweep gas or...
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6126723 |
Microcomponent assembly for efficient contacting of fluid
The present invention is a fundamental method and apparatus of a microcomponent assembly that overcomes the inherent limitations of state of the art chemical separations. The fundamental element...
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6083297 |
Gas dehydration membrane with low oxygen and nitrogen permeability
The invention relates to a gas dehydration membrane comprising a membrane having pores communicating between a first and an opposing second surface of the membrane and further having an average...
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6048383 |
Mass transfer composite membrane for a fuel cell power plant
A mass transfer composite membrane for use with a fuel cell power plant includes a transfer medium core between opposed, rigid, porous support sheets. An inlet surface of the composite membrane is...
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5876486 |
Method and apparatus for removing carbon dioxide
The invention relates to a method and to an apparatus for continuously removing metabolically produced carbon dioxide from respired air, such as the air found in life support systems or cabin...
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5853582 |
Tubular inorganic filter element having increased mechanical strength and increased filter area
An inorganic filter element for filtering a fluid medium in order to recover a filtrate, the filter element being of the type including an inorganic rigid porous support of cylindrical shape having...
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5749941 |
Method for gas absorption across a membrane
The invention relates to a method for the absorption of one or more gaseous components from a gas phase, in that the gas phase with the component(s) to be absorbed present therein is brought into...
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5580452 |
Moving liquid membrane modules
The present invention relates to an improved design for a moving liquid membrane module. In one embodiment, the tubular or hollow fiber module, at least one tubular or hollow fiber element is...
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5482859 |
Method and device for feeding gaseous substances into liquid media
The device for feeding gaseous substances into liquid media comprises a number of hollow membrane bodies which are permeable to gas and contain the liquid media. These membranes are arranged with a...
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5445669 |
Membrane for the separation of carbon dioxide
A membrane for the separation of carbon dioxide is disclosed which includes a hydrogel film of a cross-linked, vinyl alcohol/acrylic acid salt copolymer impregnated with an aqueous carrier solution...
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5411580 |
Oxygen-separating porous membranes
Oxygen-separating porous membranes comprise a complex of (a) a transition metal (II) ion, (b) a ligand, and (c) an aromatic amine, retained in the pores of a substrate.
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5395426 |
Device for the removal and concentration of organic compounds from the atmosphere
A device and method for removing, concentrating and analyzing airborne organic compounds. The device includes a nonporous membrane which contains a collection media. The liquid collection media...
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5281254 |
Continuous carbon dioxide and water removal system
Carbon dioxide and water vapor are continuously removed by a venting membrane system which employs porous membranes and a liquid amine based sorbent, and which has a partial pressure gradient...
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5135547 |
Facilitated liquid membranes for olefin/paraffin gas separations and related process
A facilitated liquid membrane for the separation of olefins from a gaseous feed stream comprises a porous support structure (10, 15) and a liquid membrane which comprises an aqueous solution...
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5131928 |
High pressure facilitated membranes for selective separation and process for the use thereof
The subject invention relates to a membrane for the selective separation of at least one component of a gaseous feed stream comprising a porous membrane, having pores of from about 10 Angstroms to...
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5110326 |
Immobilized liquid membrane
The present invention is a single-ply immobilized liquid membrane comprising an aqueous liquid membrane immobilized within a hydrophobic microporous support.
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5100555 |
Method and system for removing radon from radon containing water
Method and apparatus are described for removing dissolved radon gas from water for the purpose of reducing the exposure of household occupants to elevated airborne Rn levels, using a...
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4954145 |
Filled membranes for separation of polar from non-polar gases
Gas permeable, filled pore membranes in which the pores are filled with a substantially non-aqueous mixture of a polyhydroxy solvent and a gas carrier. A typical example is a membrane filled with...
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4888032 |
Salts of cationic-metal dry cave complexes
Salts containing cations of the formula: ##STR1## (in which M is Co, Fe, Cr or Mn, X, Y, R1, The Government has rights in this invention pursuant to Contract Number CHE-75-14837 awarded by the...
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4840819 |
Method for preparing composite membranes for enhanced gas separation
Composite membranes having advantageous combinations of selectivity and permeability are prepared by the coating of a separation layer on a porous support layer containing a controlled amount of...
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4834779 |
Process for membrane seperation of gas mixtures
A method for the substantial separation of at least one gas component from a gas mixture to generate a residue gas substantially depleted of the gas components to be separated. A semipermeable...
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4824443 |
Gas separation by composite solvent-swollen membranes
There is disclosed a composite immobulized liquid membrane of a solvent-swollen polymer and a microporous organic or inorganic support, the solvent being at least one highly polar solvent...
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4818255 |
Material for gas separation
A material for gas separation obtained by mixing a copper compound and a benzoin and/or an ascorbic acid in a solvent.
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4780114 |
Molten salt hydrate membranes for the separation of gases
The present invention is a membrane and a process for separating at least one component from at least one other component in a gas mixture. A gaseous mixture is passed over a membrane having a thin...
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4750918 |
Selective-permeation gas-separation process and apparatus
A permeant gas is selectively transferred from a feed-gas mixture which comprises the permeant gas and at least one other component to an output fluid by the process of the invention. The process...
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4745796 |
Membrane-selective vapor sensing
Generic, non-selective sensors identify specific vapors of interest through selectively permeable ILMs which eliminate interfering species.
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4737166 |
Acid gas scrubbing by composite solvent-swollen membranes
A composite immobilized liquid membrane suitable for acid gas scrubbing is disclosed. The membrane is a solvent-swollen polymer and a microporous polymeric support, the solvent being selected from...
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