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US20150094500 POLYBENZOXAZOLE MEMBRANES FROM SELF-CROSS-LINKABLE AROMATIC POLYIMIDE MEMBRANES  
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...
US20120000359 NATURAL GAS PURIFICATION SYSTEM  
The present invention relates to an integrated membrane/absorbent/adsorbent process and system for removal of mercury and sulfur compounds from natural gas on a ship that houses natural gas...
US20120247328 MOF NANOCRYSTALS  
MOF nanocrystals having a narrow size distribution, as well as methods of making and using same are disclosed.
US20150090118 SELF CROSS-LINKABLE AND SELF CROSS-LINKED AROMATIC POLYIMIDE MEMBRANES FOR SEPARATIONS  
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...
US20120024786 SELF-SUPPORTING DYNAMIC POLYMERIC MEMBRANE, METHOD FOR PREPARING SAME, AND USES THEREOF  
“A method of preparation for polyimine self-supported dynamic polymeric membranes (called “dynameric” membranes) is provided along with their use in separation processes, especially for separating...
US20130192460 GRAPHENE MEMBRANE WITH REGULAR ANGSTROM-SCALE PORES  
Technologies are generally described for perforated graphene monolayers and membranes containing perforated graphene monolayers. An example membrane may include a graphene monolayer having a...
US20110277631 METHOD FOR MODIFYING A POLYIMIDE MEMBRANE  
There is provided a method for modifying a polyimide membrane comprising the step of exposing the polyimide membrane to a surface modification compound in a vapour phase, said surface modification...
US20140174290 ZEOLITE MEMBRANE SEPARATION AND RECOVERY SYSTEM FOR CO2  
To provide a CO2 membrane separation and recovery system that is excellent in CO2 permeability and CO2 separation. selectivity on recovery of CO2 in a hydrogen production process and the like. The...
US20120107720 SELF-SUPPORTING DYNAMIC POLYMER MEMBRANE, METHOD OF PREPARATION, AND USES  
The present invention relates to self-supporting dynamic polymer membranes (called “dynamer” membranes) of the polyimine type, to their method of preparation and to their use in separation...
US20090101008 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...
US20120085232 METHODS FOR REMOVING CONTAMINANTS FROM NATURAL GAS  
A method for removing contaminants from natural gas streams. The natural gas stream is fed to a dryer, then a membrane module and a multibed, multilayer vacuum swing adsorption process for removal...
US20130305921 METHOD FOR PRODUCING CARBON MOLECULAR SIEVE MEMBRANES IN CONTROLLED ATMOSPHERES  
The invention concerns carbon molecular sieve membranes (“CMS membranes”), and more particularly the use of such membranes in gas separation. In particular, the present disclosure concerns an...
US20140150647 Curable Silicate-Siloxane Mixed Matrix Membrane Compositions  
In various embodiments, provided are modified silicone compositions comprising at least one curable silicone composition and at least one silicon additive; cured products of such compositions;...
US20140000454 Carbon Molecular Sieve Membrane (CMSM) Performance Tuning By Dual Temperature Secondary Oxygen Doping (DTSOD)  
The various embodiments of the disclosure relate generally to carbon molecular sieve membranes (CMSM) and their associated fabrication processes, and more particularly to CMSM that maintain high...
US20080216650 Synthesis of Zeolites and Zeolite Membranes Using Multiple Structure Directing Agents  
SAPO-34 membranes and methods for their preparation and use are described. The SAPO-34 membranes are prepared by contacting at least one surface of a porous membrane support with a synthesis gel...
US20080078290 MEMBRANE  
A membrane suitable for separating a gas, in particular carbon dioxide, from a gas mixture containing the gas is provided by a blend of polyvinyl alcohol (PVA) and polyvinylamine (PVAm).
US20140137734 CROSS-LINKED POLYIMIDE MEMBRANES FOR SEPARATIONS  
The present invention discloses new types of poly(amidoamine) (PAMAM) dendrimer-cross-linked polyimide membranes and methods for making and using these membranes. The membranes are prepared by...
US20140150648 FLUORINATED ETHYLENE-PROPYLENE POLYMERIC MEMBRANES FOR GAS SEPARATIONS  
A fluorinated ethylene-propylene polymeric membrane comprising a copolymer comprising 2,3,3,3-tetrafluoropropene and vinylidene fluoride is disclosed. The fluorinated ethylene-propylene polymeric...
US20140138314 FLUORINATED ETHYLENE-PROPYLENE POLYMERIC MEMBRANES FOR GAS SEPARATIONS  
A fluorinated ethylene-propylene polymeric membrane comprising a copolymer comprising 2,3,3,3-tetrafluoropropene and vinylidene fluoride is disclosed. The fluorinated ethylene-propylene polymeric...
US20080210087 MEMBRANES FOR SEPARATION OF CARBON DIOXIDE  
Methods for separating carbon dioxide from a fluid stream at a temperature higher than about 200° C. with selectivity higher than Knudsen diffusion selectivity include contacting a porous membrane...
US20130255490 CROSSLINKED SILANE-MODIFIED MOLECULARLY SELF-ASSEMBLING MATERIAL  
The present invention generally relates to a crosslinked silane-modified molecularly self-assembling material, cured manufactured article comprising the crosslinked silane-modified molecularly...
US20070022877 ORDERED MESOPORE SILICA MIXED MATRIX MEMBRANES, AND PRODUCTION METHODS FOR MAKING ORDERED MESOPORE SILICA MIXED MATRIC MEMBRANES  
Mixed matrix membranes are prepared from mesoporous silica (and certain other silica) and membrane-forming polymers (such as polysulfone), in a void free fashion where either no voids or voids of...
US20140130416 Imidazole-Containing Polymer Membranes and Methods of Use  
Imidazole-containing polymer membranes are described herein. Methods of their preparation and use are also described herein. The methods of using the membranes include capturing and reducing...
US20090288556 CARBON DIOXIDE PURIFICATION  
A process for the recovery of carbon dioxide from a gas mixture that includes pretreating a gas mixture comprising carbon dioxide, water vapor, and one or more light gases in a pretreating system...
US20080115667 Conductive membrane for carbon dioxide separation  
Disclosed are a conductive membrane able to selectively separate carbon dioxide from a gas mixture containing carbon dioxide, a manufacturing method thereof, and a method of separating carbon...
US20120111191 CROSSLINKED MEMBRANE AND POLYMER FOR MAKING SAME AND METHOD OF USING MEMBRANE  
A composition of and a method of making high performance crosslinked membranes are described. The membranes have a high resistance to plasticization by use of crosslinking. The preferred polymer...
US20080173179 COMPOSITE MEMBRANE FOR SEPARATION OF CARBON DIOXIDE  
A membrane and method for separating carbon dioxide from a mixture of gases, where the membrane includes expanded polytetrafluoroethylene and polysiloxane. The membrane is highly stable and can...
US20120006194 HIGH FLUX SAPO-34 MEMBRANES FOR CO2/CH4 SEPARATION AND TEMPLATE REMOVAL METHOD  
The present invention provides methods for making improved zeolite and crystalline silicoaluminophosphate (SAPO) membranes, in particular SAPO-34 membranes, on a porous support through improved...
US20110247492 MODIFIED ZEOLITE Y MEMBRANES FOR HIGH-PERFORMANCE CO2 SEPARATION  
Supported zeolite Y membranes exhibiting exceptionally high CO2 selectivities when used in CO2/N2 gas separations are produced by a seeding/secondary (hypothermal) growth approach in which a...
US20150005468 HIGH PERMEABILITY COPOLYIMIDE GAS SEPARATION MEMBRANES  
The present invention generally relates to high permeability, UV cross-linkable copolyimide polymers and membranes for gas, vapor, and liquid separations, as well as methods for making and using...
US20070095205 Method for processing landfill and other stranded gas containing commercial quantities of methane and contaminated by carbon dioxide, nitrogen and oxygen into a pipeline or vehicle quality natural gas product  
Stranded natural gas, when contaminated by difficult to remove constituents such as Nitrogen and Oxygen, has long been considered uneconomical to process into pipeline quality gas and is abandoned...
US20130133515 Separation of Acidic Constituents by Self Assembling Polymer Membranes  
A method of removing an acidic gas from a gas stream by contacting said gas stream with a polymer, wherein the polymer is a macromolecularly self assembling polymeric material, the method...
US20090232861 EXTRACTION AND SEQUESTRATION OF CARBON DIOXIDE  
The present disclosure provides a method and apparatus for extracting carbon dioxide (CO2) from a fluid stream and for delivering that extracted CO2 to controlled environments for utilization by a...
US20070272079 Three-stage membrane gas separation process  
A process for removing carbon dioxide or nitrogen from gas, especially natural gas. The process uses three membrane separation stages without compression between the second and third stages.
US20110094380 ULTRA-THIN CO2 SELECTIVE ZEOLITE MEMBRANE FOR CO2 SEPARATION FROM POST-COMBUSTION FLUE GAS  
A method for producing a crystalline silicoaluminophosphate (SAPO) membrane in which a porous support is contacted with SAPO seed crystals to form a SAPO seeded porous support. The SAPO seeded...
US20120323059 PROCESS OF SEPARATING GASES USING POLYIMIDE MEMBRANES  
The present invention discloses a new type of polyimide membrane with high permeances and high selectivities for gas separations and particularly for CO2/CH4 and H2/CH4 separations. The polyimide...
US20110036237 CO2-FACILITATED TRANSPORT MEMBRANE AND METHOD FOR PRODUCING THE SAME  
A CO2-facilitated transport membrane of excellent carbon dioxide permeability and CO2/H2 selectivity, which can be applied to a CO2 permeable membrane reactor, is stably provided. The...
US20150231556 Method Of Manufacturing A Silicone Membrane  
The present invention relates to silicone membranes, and methods of making and using the same. The present invention provides a silicone membrane including a cured product of a mixture, the...
US20090007779 METHOD AND SYSTEM OF PROVIDING CARBON DIOXIDE-ENRICHED GAS FOR GREENHOUSES  
A feed gas is separated into a CO2-lean stream and a CO2-enriched stream at a CO2 enriching unit. The CO2-enriched gas is fed to a greenhouse to enhance plant growth. The feed gas may include air...
US20090274600 PROCESS FOR GAS PURIFICATION  
The present invention provides for a process for purifying carbon monoxide-containing gas streams that contain impurities such as hydrocarbons by using a cryogenic adsorption process. Preferably...
US20080156188 Membrane for Separating Co2 and Process for the Production Thereof  
A fixed-site-membrane comprising a support structure coated with crosslinked polyvinylamine, wherein the crosslinking agent is a compound comprising a fluoride. The membrane comprises water, such...
US20080011160 CARBON DIOXIDE CAPTURE SYSTEMS AND METHODS  
A carbon dioxide separation system comprises a heat exchanger having a first flow path for directing a fluid comprising carbon dioxide, for example an exhaust gas, therethrough and a second flow...
US20130269520 REACTIVE FUNCTIONAL GROUP-MODIFIED MOLECULARLY SELF-ASSEMBLING MATERIAL  
The present invention generally relates to a reactive functional group-modified molecularly self-assembling material; method of making the reactive functional group-modified molecularly...
US20130192461 ACCELERATING TRANSPORT THROUGH GRAPHENE MEMBRANES  
Technologies are generally described for a membrane that may incorporate a graphene layer perforated by a plurality of nanoscale pores. The membrane may also include a gas sorbent that may be...
US20140352533 SEEDED-GEL SYNTHESIS OF HIGH FLUX AND HIGH SELECTIVITY SAPO-34 MEMBRANES FOR CO2/CH4 SEPARATIONS  
The invention provides methods for making silicoaluminophosphate-34 (SAPO-34) membranes comprising interlocking SAPO-34 crystals. In the methods of the invention, the SAPO-34 membranes are formed...
US20120042777 GAS SEPARATION USING MEMBRANES COMPRISING POLYBENZOXAZOLES PREPARED BY THERMAL REARRANGEMENT  
A method of separating components of a gas mixture, the method comprising: passing the gas mixture through a benzoxazole-based polymer membrane at a temperature of from about 30° C. to about 400°...
US20080168900 Membranes, Methods of Making Membrane, and Methods of Separating Gases Using Membranes  
Membrane, methods of making membranes, and methods of separating gases using membranes are provided. The membranes can include at least one hydrophilic polymer, at least one cross-linking agent,...
US20090277328 Efficient gas-separation process to upgrade dilute methane stream for use as fuel  
A membrane-based gas separation process for treating gas streams that contain methane in low concentrations. The invention involves flowing the stream to be treated across the feed side of a...
US20140290478 HIGH PERFORMANCE CROSS-LINKED POLYIMIDE ASYMMETRIC FLAT SHEET MEMBRANES  
The present invention discloses high performance cross-linked polyimide asymmetric flat sheet membranes and a process of using such membranes. The cross-linked polyimide asymmetric flat sheet...
US20090266230 Poly(ionic liquid)s as new materials for co2 separation and other applications  
Polymerizable ionic liquid monomers and their corresponding polymers (poly(ionic liquid)s) are created and found to exhibit high CO2 sorption. The poly(ionic liquid)s have enhanced and...
Matches 1 - 50 out of 149 1 2 3 >