| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 585818000 | By membrane, selective septum, or coalescer | 30 |
| 20090062590 | Process for separating a heavy oil feedstream into improved products - This invention relates to a process for separating a heavy hydrocarbon stream to produce at least one permeate product stream and at least one retentate product stream. The process utilizes an ultrafiltration process to designed to maximize the quality of the permeate and retenate product streams as well as process embodiments which improve permeate production quantities as well as improve the quality of the product streams obtained by the separations process. In preferred embodiments, the process includes configuration and operational parameters to maximize permeate yield and selectivity. | 03-05-2009 |
| 20090069619 | Membrane Separation Processes and Systems for Enhanced Permeant Recovery - Membrane separation processes and systems are disclosed that pass a portion of the feed ( | 03-12-2009 |
| 20100030006 | MEMBRANE-MEDIATED EXTRACTION OF OLEFINS - The present disclosure provides processes for the recovery of olefins from a mixture. Such processes include: (1) passing the mixture to a first surface of a porous membrane, wherein the porous membrane is in a first contactor; (2) passing a complexing composition to a second surface of the porous membrane in the first contactor, wherein the complexing composition includes a metal ion that is capable of reversibly binding the olefins; (3) extracting at least a portion of the olefins from the mixture; wherein extracting includes binding the olefins to the metal ion of the complexing composition; and wherein extracting produces a mixture depleted in olefins and a complexing composition enriched in olefins; and (4) inducing a release of the olefins from the complexing composition enriched in olefins. In some embodiments, the processes of the present disclosure can further include passing the complexing composition enriched in olefins to a second contactor; wherein the induction step occurs in the second contactor. In other embodiments, the processes of the present disclosure can further include passing the released olefins from the induction step to a third contactor. In additional embodiments, the processes of the present disclosure can also include recycling the complexing composition after the olefins are released in the induction step. | 02-04-2010 |
| 20110009684 | MULTI-STAGE MEMBRANE SEPARATION PROCESS - The invention concerns a process for the removal of gaseous acidic contaminants, especially carbon dioxide and/or hydrogen sulphide, in two or more stages from a gaseous hydrocarbonaceous feedstream ( | 01-13-2011 |
| 20110015461 | Ionic Liquids for Separation of Olefin-Paraffin Mixtures - The invention is directed to an ionic liquid comprising (i) a cationic portion containing a complex of a silver (I) ion and one or more neutral ligands selected from organoamides, organoamines, olefins, and organonitriles, and (ii) an anionic portion having the chemical formula | 01-20-2011 |
| 20110077446 | Membrane Separation of a Mixture of Close Boiling Hydrocarbon Components - Disclosed are membrane-based systems and methods for the separation of mixtures containing close-boiling hydrocarbon components that overcome certain issues associated with prior art devices. | 03-31-2011 |
| 20110124941 | Surface Coalescers - Disclosed are coalescers, systems, and methods for coalescing a mixture of two phases, namely a continuous phase and a dispersed phase. The disclosed coalescers, systems, and methods include or utilize one or more layers of media material having a distinct mean pore size and wettability. The disclosed coalescers, systems, and methods are effective for removing the dispersed phase from the mixture. | 05-26-2011 |
| 20110130611 | PROCESS FOR MEMBRANE SEPARATION OF AN OLEFIN THAT IS CONTAINED IN A HYDROCARBON MIXTURE - This invention relates to the field of processes for membrane separation and applies in particular to the purification of C2 or C3 olefins. This process makes it possible more particularly to separate propylene from a mixture that contains other C3 hydrocarbons such as propane. The membranes that are used in the process according to this invention are vitreous polymer-based membranes whose pattern contains a bis-phenyl-9,9-fluorene group. | 06-02-2011 |
| 20110144407 | PROCESS FOR PRODUCING PURIFIED HYDROCARBON HAS - Process for producing purified hydrocarbon gas from a gas stream comprising hydrocarbons and acidic contaminants, which process comprises the steps of: (a) contacting the gas stream with one or more membranes to obtain a hydrocarbon-rich retentate and a acidic contaminant-rich permeate; (b) cooling the hydrocarbon-rich retentate in a cooling stage to form a mixture comprising solid and/or liquid acidic contaminants and a vapour comprising vaporous hydrocarbons; (c) separating solid and/or liquid acidic contaminants from the mixture, yielding the purified hydrocarbon gas. | 06-16-2011 |
| 20110295052 | PROCESSES FOR OLEFIN/PARAFFIN SEPARATION UTILIZING POROUS, HYDROPHOBIC POLY(ETHER ETHER KETONE) MEMBRANES - Processes for olefin/paraffin separation utilizing porous, hydrophobic poly(ether ether ketone) (PEEK) membranes are provided. In accordance with an exemplary embodiment, a process for olefin/paraffin separation comprises providing a porous membrane formed of PEEK polymer functionalized with hydrophobic groups, the porous membrane having a first surface and a second surface. The first surface of the porous membrane is contacted with a feed comprising an olefin and a paraffin and a permeate is caused to flow from the second surface of the porous membrane. The permeate has a concentration of the paraffin that is higher than a concentration of the paraffin of the feed. | 12-01-2011 |
| 20120157743 | MEMBRANE SYSTEM FOR NATURAL GAS UPGRADING - The present invention involves the use of a novel membrane system for natural gas upgrading. This membrane system includes a first-stage membrane such as a membrane prepared from the polymer of intrinsic microporosity (PIM) to selectively remove hydrocarbons from C | 06-21-2012 |
| 20120190905 | OLEFIN SELECTIVE MEMBRANE COMPRISING AN IONIC LIQUID AND A COMPLEXING AGENT - An improved ionic liquid membrane and its preparation for separation of olefins/paraffins is described. The membrane comprises an ionic liquid with a metal salt. The ionic liquid includes a choline salt, selected from choline, chloride/hydroxide/bitratrate, phosphatidylcholine and is a deep eutectic liquid. The metal salt selected from silver, copper, gold, mercury, cadmium, zinc with choloride, nitrate, tetrafluoroborate, triflate, cyanide, thiocyanide, tetraphenylborate as anion. The ionic liquid is eutectic or a so-called deep eutectic liquid. The experimental examples use choline chloride, urea and silver nitrate/chloride and are tested for methane/ethene separation. | 07-26-2012 |
| 20120323059 | 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 CO | 12-20-2012 |
| 20130253250 | Method for High-Pressure Hydrocarbon Gas Mixture Purification and Plant for Implementing Thereof - A method is proposed for operating a plant for purifying a high-pressure gas mixture from easily permeating components, which plant comprises membrane gas separating units having a high-pressure chamber and a low-pressure chamber with a selectively permeable membrane therebetween, in which method the low-pressure chamber of at least one membrane gas separating unit is continuously flushed with purified gas mixture (semi-finished product or product), wherein the pressure difference between the aforementioned chambers of the membrane gas separating unit and, likewise, the flow rate of the purified gas mixture used for flushing are maintained so that the amount of each easily permeating component in the product does not exceed the desired values. The proposed method makes it possible to purify a raw material from one or more easily permeating components simultaneously, increase purification efficiency, and provide the possibility of using raw material with a higher content of easily permeating components. | 09-26-2013 |
| 20140018598 | REMOVAL OF IONIC LIQUIDS BY MEANS OF COALESCING FILTERS MADE FROM ACRYLIC/PHENOLIC RESIN - The present invention relates to a process for separating a phase (A) comprising at least one ionic liquid from a phase (B), phase (A) having a higher viscosity than phase (B), comprising the following steps:
| 01-16-2014 |
| 20140066683 | Process, Method, and System for Removing Heavy Metals from Fluids - A method for concurrently transporting and removing trace amount levels of heavy metals such as mercury from produced fluids such as natural gas, with the injection of a complexing agent and a hydrate inhibitor into the pipeline for use in transporting the produced fluid. Volatile mercury in the natural gas is removed while the produced fluid is being transported in the pipeline, with the hydrate inhibitor suppressing or decreasing the formation of the hydrate that would cause plugging in the pipeline. The complexing agent reacts with the volatile mercury in the natural gas, forming precipitate or soluble mercury complexes in the aqueous phase. The aqueous phase containing the hydrate inhibitor, unreacted complexing agent, and mercury complexes is subsequently recovered and can be re-used in the pipeline. | 03-06-2014 |
| 20140107388 | FUEL GAS CONDITIONING PROCESS USING GLASSY POLYMER MEMBRANES - Disclosed herein is a process for conditioning natural gas containing C | 04-17-2014 |
| 20140163296 | OIL FILTERS CONTAINING STRONG BASE AND METHODS OF THEIR USE - Novel filter elements for sequestering acids from oil or fuel, the strong base flocs that comprise the filter elements, and methods of their preparation and use are disclosed. The filter elements comprise a mechanically linked interlocking fiber matrix interspersed with strong base particle flocs wherein the strong base particles constitute at least 30% by weight of the filter element. Certain filter elements may be useful for sequestering acids or neutralized acids in certain oils or fuels, for example, the acids originating in the combustion and lubrication system of an internal combustion engine or those contained in oils in an oil circulation system. Other filter elements may be useful for reducing oxidation of an oil. | 06-12-2014 |
| 20140243573 | OIL QUALITY USING A MICROPOROUS HOLLOW FIBER MEMBRANE - The present invention includes methods and systems for improving oil quality of a contaminated oil mixture by removing contaminants from a contaminated oil comprising the steps of: pretreating a membrane contactor system having a first and a second surface with an hydrophobic liquid, wherein the hydrophobic liquid is contacted to at least one of the first and second surfaces; obtaining a contaminated oil that comprises oil and lipophobic contaminants; contacting the contaminated oil onto a first surface of one or more membrane contactors to coalesce the oil on the first surface; and collecting the coalesced oil from the contaminated oil on the second surface of the membrane contactor. | 08-28-2014 |
| 20140243574 | Helium Recovery From Natural Gas - Helium-containing natural gas is processed with three gas separation stages to produce a natural gas product and a Helium-containing gas that may be injected into the reservoir from which the Helium-containing natural gas is obtained. A permeate from the first gas separation membrane stage is compressed and fed to the second gas membrane stage. The permeate from the second gas separation membrane stage is recovered as the Helium-containing gas that may be injected into the reservoir. The non-permeate from the second gas separation membrane stage is fed to the third gas separation membrane stage. Non-permeates from the first and third gas separation stages are combined to produce a natural gas product. A permeate from the third gas separation membrane stage is combined with a non-permeate from the first gas separation membrane stage before it is compressed and fed to the second gas separation membrane stage. | 08-28-2014 |
| 20140275692 | MODIFIED SURFACE ENERGY NON-WOVEN FILTER ELEMENT - A non-woven low surface energy filter element designed to have improved removal of a dispersed liquid phase from a continuous liquid phase is disclosed. | 09-18-2014 |
| 20140336435 | FLOW PROCESSING AND CHARACTERIZATION OF METAL-ORGANIC FRAMEWORK (MOF) MEMBRANES IN HOLLOW FIBER AND TUBULAR MODULES - A reactor cell for measuring gas and liquid permeation is disclosed. The reactor cell comprises a reactor module having a reactor chamber and a cover. A first hole extends into the reactor chamber from a first surface, a second hole opposing the first hole extends into the reactor chamber from a second surface, a third hole extends into the reactor chamber from a third surface and a fourth hole opposing the third hole extends into the reactor chamber from a fourth surface. A hollow fiber is supported by and sealed into the first and second holes of the reactor module. The first and second ends of the hollow fiber are sealed with a sealing solution. Methods for making and using the reactor cell are also disclosed. As made and used, the reactor cell further comprises a molecular sieving membrane grown on an inner bore surface of the hollow fiber. | 11-13-2014 |
| 20140371509 | PROCESS FOR TREATING A LIQUID HYDROCARBON STREAM - One exemplary embodiment can be a process for treating a liquid hydrocarbon stream. The process can include passing the liquid hydrocarbon stream previously contacted with a solvent having an alkanolamine consisting of diethanolamine, a methyl diethanolamine, or a mixture thereof, and an alkali to a vessel. Generally, the vessel contains a coalescing zone for removing at least one of hydrogen sulfide and carbonyl sulfide. | 12-18-2014 |
| 20150011815 | COMPOSITE HOLLOW FIBER MEMBRANES USEFUL FOR CO2 REMOVAL FROM NATURAL GAS - Disclosed herein is a composite hollow fiber polymer membrane including a porous core layer and a selective sheath layer. The porous core layer includes a polyamide-imide polymer, or a polyetherimide polymer, and the selective sheath layer includes a polyimide polymer, which is prepared from monomers A, B, and C. The monomer A is a dianhydride of the formula | 01-08-2015 |
| 20150025293 | MEMBRANE SEPARATION OF OLEFIN AND PARAFFIN MIXTURES - A metal exchanged fluorinated ionomer is a copolymer minimally including repeating units of (i) a polymerized derivative of a perfluorinated cyclic or cyclizable monomer and (ii) a strong acid highly fluorinated vinylether compound in which the acid moiety is exchanged with a cation of a Group 11 metal. Metal exchanged fluorinated ionomers are readily soluble and can be formed into thin, selectively gas permeable membranes by solution deposition methods. These membranes are suitable for separating olefins from gas olefin/paraffin mixtures. Good selectivity and transmembrane flux can be obtained without humidifying the membrane feed gas mixture. | 01-22-2015 |
| 20150087877 | ENHANCING FLUX OF A MICROPOROUS HOLLOW FIBER MEMBRANE - The present invention includes a system and method for improving oil recovery from a liquid source of oil, comprising: a membrane contactor in contact with a liquid source of oil; a heating/cooling device connected to at least one of the liquid source of oil or a collection fluid; and a membrane contactor system having one or more membrane contactors having a first and a second surface, wherein at least one of the first or second surfaces coalesce one or more oils from the liquid source of oil allowing the coalesced oil to be collected on the opposite surface of the membrane, wherein a temperature differential between the liquid source of oil and the collection fluid enhances the oil recovery at the membrane contactor from the liquid source of oil. | 03-26-2015 |
| 20150141729 | METHOD FOR RECOVERING OLEFIN - A method for recovering olefin includes: an olefin concentrating process of supplying a part or all of an olefin-containing gas containing olefin to an olefin-containing-gas separating unit that includes a separation membrane and causing this olefin-containing gas to transmit the separation membrane so as to obtain an olefin concentrated gas reduced in concentration of a component other than olefin to 1/10 or less compared with a concentration of a component other than olefin in the olefin-containing gas; and a residual-gas combustion process of disposal of residual gas that does not transmit the separation membrane in the olefin concentrating process by burning. | 05-21-2015 |
| 20150328583 | METHOD AND APPARATUS FOR REMOVING HIGH CONCENTRATION ACID GAS FROM NATURAL GAS - A multi-stage process for recovering acid gas from natural gas having high acid gas contents utilizes two or more membrane absorption contactors arranged in series. The first membrane absorption contactor uses a physical solvent to remove a high volume of acid gas transferred across a membrane, and to reduce the acid gas content in the natural gas to a lower level that can be managed using chemical solvents. The second and, if needed, subsequent membrane absorption contactors can use a chemical solvent to remove acid gas transferred across the respective membranes and reduce the acid gas content in the natural gas to very low levels, if needed, depending on product specifications. | 11-19-2015 |
| 20160184798 | HIGH EFFICIENCY, HIGH PERFORMANCE METAL-ORGANIC FRAMEWORK (MOF) MEMBRANES IN HOLLOW FIBERS AND TUBULAR MODULES - A reactor cell for measuring gas and liquid permeation is disclosed. A hollow fiber is supported by and sealed into a first hole and a second hole of the reactor module. The first and second ends of the hollow fiber are sealed with a sealing solution. Methods for making and using the reactor cell are also disclosed. As made and used, the reactor cell further comprises a molecular sieving membrane that is uniform and free of defects grown on an inner bore surface of the hollow fiber. | 06-30-2016 |
| 585819000 | Aromatic permeate | 1 |
| 20140100406 | SEPARATION MEMBRANE - A separation membrane is described. The separation membrane comprises a porous inorganic membrane, the pores of the inorganic membrane being coated with a polybenzoxazole polymer coating. Methods of making the separation membrane and methods of separating xylenes using the separation membrane are also described. | 04-10-2014 |
