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6605133 |
Process and system for separation and recovery of perfluorocompound gases
Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture...
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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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6595001 |
Method for utilization of a methane-containing gas
A method of utilizing a methane-containing gas by feeding the methane-containing gas to a gas engine of a gas engine/generator assembly generating electricity comprises the step of passing...
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6582495 |
Process for preparing supported zeolitic membranes by temperature-controlled crystallisation
A process is described for preparing a supported zeolite membrane constituted by a composite continuous zeolite/support layer of controlled thickness, wherein the zeolitic phase is principally...
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6572680 |
Carbon dioxide gas separation using organic-vapor-resistant membranes
A process for separating carbon dioxide from a multicomponent gas mixture containing carbon dioxide and a hydrocarbon, such as natural gas or associated gas, using gas-separation membranes...
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6565821 |
Process for removing the fluorocompounds or fluorosulphur compounds from a stream of xenon and/or krypton by permeation
A process and a plant for removing the gaseous fluorocompounds or fluorosulphur compounds, such as CF 4 , C 2 F 6 , and SF 6 , present in a stream of xenon and/or krypton, by permeation via one or...
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6551818 |
Biological filter structures
A cartridge for holding compost in a biofilter is substantially uniform in cross section perpendicular to the axis of the cartridge and has a sidewall formed with openings that are small enough to...
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6544404 |
Oxygen separation process
The invention relates to a process for the separation of oxygen from an oxygen-containing fluid using novel membranes, formed from perovskitic or multi-phase structures, with a chemically active...
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6539719 |
Integration of ceramic oxygen transport membrane combustor with boiler furnace
An oxygen selective ion transport membrane is integrated with a boiler furnace to generate steam and, optionally, high purity oxygen and nitrogen. The heat required to drive the system is obtained...
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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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6533840 |
Microchannel laminated mass exchanger and method of making
The present invention is a microchannel mass exchanger having a first plurality of inner thin sheets and a second plurality of outer thin sheets. The inner thin sheets each have a solid margin...
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6527827 |
Thermomembrane method and device
The invention relates to a method for separating a fluid mixture consisting of at least two components. The inventive method comprises the following steps: contacting the fluid mixture at a first,...
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6517725 |
Oil dehydrator
A method and apparatus for the removal of free, emulsified, or dissolved water from liquids of low volatility, such as oil, is shown. The liquid of low volatility is removed by contacting the fluid...
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6517606 |
Morphologically controlled thermotropic liquid crystalline polymer blended high selective gas separation membranes
Liquid crystalline polymer blended gas separation membranes are obtained by melting and processing 50˜99 wt % of a thermoplastic resin, 1˜50 wt % of a thermotropic liquid crystalline polymer and...
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6517607 |
Method and apparatus for selective removal of a condensable component from a process stream with latent heat recovery
A method for removing a condensable component from a process stream in which a first side of a permselective membrane is contacted with the process stream in which is disposed the condensable...
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6508860 |
Gas separation membrane with organosilicon-treated molecular sieve
A mixed matrix membrane for gas separations is provided with a nonporous continuous phase of a polymer and a dispersed phase of molecular sieve particles reacted with a monofunctional organosilicon...
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6506304 |
Method for the regeneration of supercritical extractant
A method for recovering supercritical extractant, such as supercritical CO 2 , from a mixture containing the supercritical extractant and a solute is disclosed, which includes contacting the...
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6503295 |
Gas separations using mixed matrix membranes
Mixed matrix membranes capable of separating carbon dioxide from mixtures including carbon dioxide and methane, and processes for purifying methane using the membranes, are disclosed. The membranes...
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6503294 |
Permeable membrane and method
Permeable membrane porous substrate and a functional layer provided on the surface of and/or inside the porous substrate, the functional layer having a hydrogen permeation rate of 1×10 −10 ...
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6497747 |
Production and use of improved polyimide separation membranes
A process for preparing polyimide gas separation membranes is disclosed. The process involves preparing polyamic acid salt membrane precursors that are converted into polyimide membranes by mild...
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6497748 |
Method and apparatus for removing non-condensible gas from a working fluid in a binary power system
Apparatus for removing non-condensible gas from a working fluid utilized in a thermodynamic system comprises a membrane having an upstream side operatively connected to the thermodynamic system so...
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6497156 |
Method for collecting exhaust gases
A sample of gaseous constituents, to be used in e.g. emissions testing, is collected within an inner bag 86 having a wall 92 that allows limited diffusion of at least one of the gaseous...
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6494082 |
Method of and apparatus for testing airtightness of closed space provided with steam movement control device
A method and an apparatus confirms airtightness of a closed space in a housing provided with a steam movement control device. The apparatus includes an air feed passage and an air exhaust passage,...
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6491739 |
Air separation module using a fast start valve for fast warm up of a permeable membrane air separation module
The present invention relates generally to on board inert gas generating systems, and more particularly, to an on board inert gas generating system having a fast warm up feature. Even more...
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6488741 |
Light hydrocarbon separation using 8-member ring zeolites
A method of selectively adsorbing propylene in mixtures of propylene/propane and propylene/olefins through the use of zeolites having structures with a maximum of 8-member rings of tetraheda...
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6486240 |
Method for producing an asymmetric support membrane by physical gelation and the membranes obtained thereby
An asymmetric support membrane can be prepared by using a phase separation method. The method includes immersing a polymer solvent solution into water. The polymer solution is made by dissolving 15...
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6482251 |
Method and apparatus for separating and recovering perfluoro compound
A PFC separation recovery method to separate and recover PFC by raising the pressure of diluted mixed gas consisting of PFC gas and diluent gas, and subsequently contacting the gas with a membrane...
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6478851 |
Ethylene treatment by gas permeation
The invention relates to a process for separating off ethylene from a gas mixture comprising more than 8% by volume of carbon dioxide or oxygen, by gas permeation.
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6464876 |
Process and apparatus for a mixture resolution
Disclosed is a process for the resolution of a mixture into at least one first fraction and one second fraction, the respective compositions of said fractions differing by at least one element. The...
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6461406 |
Honeycomb type gas separating membrane structure
A honeycomb type gas separating membrane structure for separating or supplying a specified gas from a mixed gas is provided. The gas separating membrane structure has a honeycomb unitary structure...
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6458190 |
Installation and process for the separation of gas by selective permeation
This installation comprises subgroups of permeators (SG 1 to SG 3 ), each subgroup comprising a permeator ( 4 A to 4 C) or several permeators mounted in parallel, and having an inlet ( 12 A to ...
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6451090 |
Permeation installation
The invention relates to a permeation installation comprising: a single pressure resistant chamber ( 30 ), a plurality of permeation modules ( 34, 36 ) disposed within the chamber, each module...
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6447679 |
Hollow fiber membrane
The present invention provides a gas-permeable hollow fiber membrane having an inner diameter of 50 to 500 μm, which is preferably a composite hollow fiber membrane having a three-layer structure...
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6440309 |
Ceramic-supported polymer (CSP) pervaporation membrane
A ceramic-supported polymer membrane is disclosed where a porous ceramic membrane support of average pore size no larger than 500 Å is activated by attaching a vinyl terminated lower alkoxy...
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6440196 |
Method for purifying and concentrating a gas mixture into a minor constituent, method for detecting this constituent, and installation
A method for purifying a minority constituent and concentrating it in a majority constituent of a gas mixture that also contains one or more other minority constituent(s) employs (i) a selective...
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6422392 |
Ammonia removal from fly ash in an acoustically enhanced fluidized bed
A process for removing ammonia from fly ash during processing on an inclined fluidized bed. The process begins by introducing a mixture of particulates having ammonia adsorbed therein into an...
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6423537 |
Multichannel porous ceramic fiber
A multi-channel porous ceramic fiber is provided, preferably having a particular geometry, together with a filtration and/or reaction module comprising such fibers and a precursor paste for the...
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6419725 |
Process of forming a permeable gas separation material
The process is characterised by sulfonating a partially brominated poly(phenylene oxide). The gas separation material so formed may be made into a membrane and is useful in separating component...
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6416568 |
Hydrogen recycle and acid gas removal using a membrane
The present invention is a process to recover a high purity, high pressure hydrogen gas stream from synthesis gas. The synthesis gas is contacted with a membrane that separates the synthesis gas...
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6406518 |
Gas separation process using ceramic membrane and regenerators
A process (and corresponding system) for separating a high purity gas (e.g. oxygen) from a feed gas stream (e.g. air) that includes heating the feed gas stream before passing the heated feed gas...
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6406517 |
Designed selectivity gas permeable membranes
The separation factor with respect to a gas binary of a selectively gas permeable membrane of a fluoropolymer can be increased by fabricating the membrane from a composition of a blend of the...
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6387157 |
Mixed gas concentration regulating method and concentration regulating apparatus
A mixed gas concentration regulating method and a concentration regulating apparatus, in which the maintenance of the recovery of an easily permeable gas and the restraint of the power expense are...
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6387269 |
Membrane for separating fluids
A porous composite structure, and in particular a membrane, for separating fluids is described. The composite structure comprises at least a porous support and a zeolite layer applied to the...
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6383258 |
Copolyimide gas separation membranes
A gas separation membrane is formed from a copolyimide produced by copolymerization of monomers which include o-tolidine sulfone, at least one other hydrophilic diamine and...
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6383257 |
Reclamation and separation of perfluorocarbons using condensation
An apparatus and process for separating perfluorocarbon compounds from a gas mixture passes an incoming stream of a gas into a cold trap, the gas stream including a plurality of perfluorocarbon...
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6368491 |
Method of controlling a modular ceramic oxygen generating system
The invention relates generally to ceramic oxygen generating modules, and more particularly, to an apparatus and method for controlling a duty cycle for each of a plurality of ceramic oxygen...
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6364932 |
Cold gas-dynamic spraying process
The present invention provides an improved cold gas-dynamic spraying process utilizing a carrier gas and small-diameter particulates whereby the particulate-laden carrier gas is directed to a...
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6361582 |
Gas separation using C3&plus hydrocarbon-resistant membranes
A process for separating a gas from a gas mixture containing the gas and a C 3+ hydrocarbon vapor, using gas-separation membranes selective for the gas over the C 3+ hydrocarbon vapor. The...
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6355092 |
Apparatus and method for performing membrane gas/liquid absorption at elevated pressure
The invention relates to an apparatus for performing membrane gas/liquid absorption at elevated pressure, comprising a pressure vessel in which a membrane unit is provided for separate feed-through...
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6340379 |
Gas filter, method for producing a gas filter and use of said gas filter
A gas filter, a process for producing a gas filter and the use of the gas filter. The filtration of gases, in particular of gases which are contaminated by solids, e.g. automobile exhaust gases, is...
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