Patents Examined by Jason M. Greene
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Patent number: 11964242Abstract: Disclosed are methods of manufacturing a zeolite membrane, comprising: providing at least one porous substrate; and coating the at least one porous substrate with a membrane. In some embodiments, the method further comprises hydrothermally treating the membrane with a first hydrothermal treatment step with tetrapropylammonium fluoride (TPAF) and a second hydrothermal treatment step with tetraethylammonium hydroxide (TEAOH). In some embodiments, coating the substrate with a membrane comprises surrounding at least a portion of the at least one porous substrate with a precursor gel, the gel comprising a gel phase and a plurality of CHA or MFI crystals; heating the at least one porous substrate and the precursor gel; washing the at least one porous substrate; drying the at least one porous substrate; and calcining the at least one porous substrate.Type: GrantFiled: April 9, 2020Date of Patent: April 23, 2024Assignee: Georgia Tech Research CorporationInventors: Sankar Nair, Shaowei Yang, Christopher W. Jones, Byunghyun Min
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Patent number: 11964240Abstract: New carbon nanomaterials, preferably titanium carbide-derived carbon (CDC) nanoparticles, were embedded into a polyamide film to give CDC/polyamide mixed matrix membranes by the interfacial polymerization reaction of an aliphatic diamine, e.g., piperazine, and an activated aromatic dicarboxylate, e.g., isophthaloyl chloride, supported on a sulfone-containing polymer, e.g., polysulfone (PSF), layer, which is preferably previously prepared by dry/wet phase inversion. The inventive membranes can separate CO2 (or other gases) from mixtures of CO2 and further gases, esp. CH4, based upon the generally selective nanocomposite layer(s) of CDC/polyamide.Type: GrantFiled: January 13, 2023Date of Patent: April 23, 2024Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Isam H. Aljundi, Abdelrahman M. Awad
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Patent number: 11964231Abstract: An apparatus and process for separating a gas mixture is disclosed. The apparatus includes a plurality of membrane separation stages comprising a first membrane stage, a second membrane stage, and a third membrane stage. Each of the first, second, and third membrane stages are designed to separate a gas stream provided to them into a permeate stream and a retentate stream. The retentate stream provided from the third membrane stage is configured to be withdrawn as a product, further processed, or discarded. The apparatus further includes a gas transport device with an inlet in communication with the gas mixture and an outlet in communication with the first membrane stage. The controller is in communication with at least one measuring device, and the controller adapts a behavior of the gas transport device in response to a measurement of the at least one measuring device.Type: GrantFiled: October 18, 2022Date of Patent: April 23, 2024Assignee: HAFFMANS B.V.Inventor: J. E. Roodbeen
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Patent number: 11958014Abstract: A high-flux composite nanofiltration (NF) membrane with an electrical double layer (EDL) and a preparation method thereof are provided. The high-flux composite NF membrane includes: a charged support membrane and a charged separation layer, where a charge carried by the support membrane or the separation layer is a positive charge, a negative charge, or an amphiprotic charge. The high-flux composite NF membrane with an EDL solves the technical problem that the composite NF membrane in the prior art has an unsatisfactory retention rate and a limited application range due to a small charge quantity.Type: GrantFiled: July 12, 2023Date of Patent: April 16, 2024Assignee: HARRIS MEMBRANE CLEAN TECHNOLOGY INC.Inventors: Jiang Wei, Chulong Chen, Wei Feng
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Patent number: 11959407Abstract: A detection device detecting collapse of PM collected in a filter provided in an exhaust system flow path of an internal combustion engine includes: a differential pressure sensor configured to acquire a differential pressure between an exhaust inlet side and an exhaust outlet side of the filter; a water generation determination unit configured to determine whether water is generated in the exhaust system flow path; and a PM collapse determination unit configured to determine that at least a part of the PM collected in the filter has collapsed when a PM accumulation amount estimated based on the acquired differential pressure has increased by a predetermined amount or more within a predetermined period in a state where the PM accumulation amount estimated based on the acquired differential pressure is equal to or larger than a predetermined first threshold and the water generation determination unit has determined that water is generated.Type: GrantFiled: December 25, 2019Date of Patent: April 16, 2024Assignee: ISUZU MOTORS LIMITEDInventors: Daiki Ishii, Naofumi Ochi, Takanobu Ogawa, Yuta Kageyama, Akira Matsutani, Hitoshi Sato
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Patent number: 11952270Abstract: A method and system for purification of helium and CO2 from a stream containing at least Helium, CO2, nitrogen or methane uses a combination of cryogenic, membrane and adsorption technologies.Type: GrantFiled: October 5, 2021Date of Patent: April 9, 2024Assignees: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude, Air Liquide Advanced Technologies U.S. LLCInventors: Paul Terrien, Pierre-Philippe Guerif, Vincent Follaca, Alain Guillard, Youssef Tazi
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Patent number: 11951445Abstract: The present disclosure relates to the field of materials for uranium extraction from seawater (UES), and in particular, to a photothermal photocatalytic membrane for seawater desalination and uranium extraction and a preparation method therefor. The present disclosure provides a photothermal photocatalytic membrane for seawater desalination and uranium extraction and a preparation method therefor. The preparation method includes: fixing a treated carbon cloth to a glass plate, pouring a casting solution 1 onto the carbon cloth to form a first layer of film, forming a second layer of film using a casting solution 2, and putting the second layer of film into a first coagulation bath and a second coagulation bath in sequence to form the photothermal photocatalytic membrane. The photothermal photocatalytic membrane is supported by the carbon cloth, and a surface of the photothermal photocatalytic membrane is of a micro-nano structure.Type: GrantFiled: May 10, 2023Date of Patent: April 9, 2024Assignee: Harbin Engineering UniversityInventors: Jun Wang, Bingtao Zhang, Hongsen Zhang, Qi Liu, Jiahui Zhu, Jingyuan Liu, Jing Yu, Rongrong Chen, Lele Wang
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Patent number: 11944940Abstract: Provided is a method for manufacturing a water-treatment membrane, the method including bringing an aqueous solution including free chlorine and a halogen ion into contact with a polyamide active layer, wherein the free chlorine is present in an amount from 150 ppm to 400 ppm and the halogen ion is present in an amount from 150 ppm to 400 ppm based on the aqueous solution, and a water-treatment membrane manufactured using the same.Type: GrantFiled: January 18, 2019Date of Patent: April 2, 2024Assignee: LG CHEM, LTD.Inventors: Hyelim Kang, Danbi Han, Eun Woo Cho, Hyungjoon Jeon, Chong Kyu Shin, Lakwon Choi
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Patent number: 11938431Abstract: A component for a centrifugal deaerator for removing gas from a turbomachine air/oil mixture includes a structural part configured to delimit a duct for the flow of the air/oil mixture, and includes a circumferential enclosure for the centrifugal separation of the air/oil mixture, an axial inlet for the air/oil mixture, radial oil outlets, and an outlet for oil-free air. The component includes at least one cellular structure configured to filter the oil while allowing the air to pass and occupying at least a space in the duct.Type: GrantFiled: September 24, 2018Date of Patent: March 26, 2024Assignee: SAFRAN HELICOPTER ENGINESInventors: Arnaud Nifenecker, Benjamin Fulleringer, Cédric Lempegnat, Samuel Jousselin, Pierre Gaymu, Cédric Georget, Rémi Lanquetin, Philippe Olharan
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Patent number: 11938442Abstract: A gas separation system includes: a first gas separation membrane unit; a second gas separation membrane unit; a material gas feed line connected to a gas inlet port of the unit; a first compressor interposed to the line; a first connection line connecting a permeated gas discharge port of the unit and a gas inlet port of the unit; and a second connection line connecting a non-permeated gas discharge port of the unit and the line. The unit and unit each have a gas separation selectivity of 30 or greater. The CH4 recovery rate is 98% or higher. The CO2 content in non-permeated gas of the unit is 5 mol % or less. The flow rate of gas fed to the unit is 60% or less of the flow rate of material gas fed to the unit.Type: GrantFiled: March 30, 2020Date of Patent: March 26, 2024Assignee: UBE CORPORATIONInventors: Tomohide Nakamura, Nobuhiko Fukuda
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Patent number: 11911725Abstract: The present invention provides a separation membrane that is suitable for separating an acid gas from a gas mixture containing the acid gas and has a high acid gas permeability. A separation membrane (10) of the present invention includes: a separation functional layer (1); a porous support member (3) supporting the separation functional layer (1); and an intermediate layer (2) disposed between the separation functional layer (1) and the porous support member (3), and including a matrix (4) and nanoparticles (5) dispersed in the matrix (4).Type: GrantFiled: March 12, 2020Date of Patent: February 27, 2024Assignee: NITTO DENKO CORPORATIONInventors: Kazuya Yoshimura, Daiki Iwasaki, Naomichi Kimura, Shinya Nishiyama
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Patent number: 11906163Abstract: A fuel delivery system for a gas turbine engine includes a fuel source; a draw pump downstream of the fuel source for generating a liquid fuel flow from the fuel source; a main fuel pump downstream of the draw pump; and a fuel oxygen reduction unit downstream of the draw pump and upstream of the main fuel pump.Type: GrantFiled: May 1, 2020Date of Patent: February 20, 2024Assignee: General Electric CompanyInventors: Daniel Alan Niergarth, Sridhar Adibhatla, Ethan Patrick O'Connor
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Patent number: 11904282Abstract: The present invention relates to a method of controlling a defect structure in a chabazite (CHA) zeolite membrane, the CHA zeolite membrane having a controlled defect structure by the method and a method of separating CO2, H2, or He and water from a mixture of water and an organic solvent using the CHA zeolite membrane, and more particularly, to a method of controlling a defect structure in a CHA zeolite membrane that improves the separation performance by reducing the amount and size of defects formed in the CHA membrane structure when removing organic-structure-directing agents in the membrane through calcination at a low temperature using ozone.Type: GrantFiled: January 15, 2021Date of Patent: February 20, 2024Assignee: Korea University Research and Business FoundationInventors: Jungkyu Choi, Kwan Young Lee, Minseong Lee
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Patent number: 11894158Abstract: Sealed containers for radioactive material are presented herein. A sealed container forms an interior envelope for housing a radioactive material and prevents escape of the radioactive material into a surrounding environment. The sealed container provides a diffusion window for gaseous decay products to escape at a particular diffusion rate. In one example, an apparatus, comprises a container forming a sealed interior envelope for a radioactive material. The container has an aperture covered by a window material, and properties of the window material are selected to provide for diffusion of at least one gas produced by radioactive decay of the radioactive material.Type: GrantFiled: January 15, 2021Date of Patent: February 6, 2024Assignee: Lockheed Martin CorporationInventor: Brian Paul Dempsey
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Patent number: 11883774Abstract: The present invention discloses an air filter cartridge for use in an air-purifying device for removing formaldehyde (methane, HCHO) and other aldehyde-like VOCs (Volatile Organic Compounds), and in certain embodiments amine-like VOCs, from indoor air. The air filter cartridge is made up of a casing containing a plurality of filament-like elements as a support and a mixture of one or more natural polyphenols and a catalyst integrated in said support as a powder, forming a sponge-like mesh. The air filter acts as an absorption filter, the sponge-like mesh reacting irreversibly with the aldehyde-like VOCs present in the air, generating a polymer in the form of a polyphenol-aldehyde resin inside the air filter. Due to this irreversible reaction, the air filter is capable of capturing formaldehyde, as well as other aldehyde-like VOCs that are less reactive than formaldehyde, amine-like VOCs and ammonia.Type: GrantFiled: July 5, 2019Date of Patent: January 30, 2024Assignee: Air Tech Group, SLUInventors: Jaume Vilarrasa Llorens, Lluis Bosch Hereu, Lluis Trench Roca
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Patent number: 11878267Abstract: M(SiF6)(pyz)3 (M=Cu, Zn, Co, or Ni) has a pore size between a size of H2 and a size of CO2, and thus exhibits prominent screening performance for H2/CO2. A strong interaction between Cu(SiF6)(bpy)2 and a CO2 molecule can hinder the transport of the CO2 molecule. The above two MOFs both can achieve the H2/CO2 separation. By preparing a dense MSiF6/polymer layer, MSiF6 is uniformly dispersed in the polymer and is fixed, and subsequently, MSiF6 is converted into M(SiF6)(pyz)3 or Cu(SiF6)(bpy)2 by interacting with an organic ligand. Through vapor-induced in-situ conversion, MOF particles can be well dispersed without interface defects between the MOF particles and the polymer. Even at a doping amount of 80%, the mechanical flexibility and stability of the MMM can still be retained.Type: GrantFiled: February 6, 2023Date of Patent: January 23, 2024Assignee: NANJING TECH UNIVERSITYInventors: Gongping Liu, Guining Chen, Wanqin Jin
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Patent number: 11872521Abstract: An air purifying system includes: a carbon dioxide remover including first and second spaces partitioned by a gas permeable membrane with 50 nm or less diameter micropores; a feed passage leading to-be-purified air from a room to the first space; a supply passage supplying clean gas having lower carbon dioxide and higher oxygen concentrations than the to-be-purified air to the second space; a discharge passage discharging, from the second space, mixed gas; a return passage leading purified air from the first space into the room, the purified air resulting from removing carbon dioxide from the to-be-purified air; and adjusting equipment adjusting a gas pressure in the first and second spaces to be substantially equal to each other. The to-be-purified air flows in the first space along a surface of the gas permeable membrane, and the clean gas flows in the second space along a surface of the gas permeable membrane.Type: GrantFiled: January 24, 2020Date of Patent: January 16, 2024Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Katsuya Umemoto, Kazuhiro Okumura, Kouji Fukumoto, Tomoaki Umemura, Hideto Matsuyama, Eiji Kamio
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Patent number: 11872531Abstract: The present disclosure provides a fluorine-based resin porous membrane exhibiting high mechanical strength and low heat shrinkage rate while having a fine pore size, and a method for preparing the same.Type: GrantFiled: October 18, 2019Date of Patent: January 16, 2024Assignee: LG CHEM, LTD.Inventors: Sungjae Han, Joo Yeon Seo, Byeong In Ahn
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Patent number: 11872525Abstract: The present disclosure is related to porous media with adjustable fluid permeabilities and related systems and methods. In certain cases, the fluid permeability of a porous medium can be adjusted by applying an electrical potential to the porous medium. In some such cases, the application of the electrical potential to the porous medium results in the deposition of material over or the removal of material from the porous medium. Also disclosed herein are systems and methods for capturing species (e.g., acid gases) in which porous media with adjustable fluid permeabilities are used, for example, to control the flow of fluid into and out of a medium used to capture the species.Type: GrantFiled: March 30, 2021Date of Patent: January 16, 2024Assignee: Massachusetts Institute of TechnologyInventors: Yayuan Liu, Trevor Alan Hatton
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Patent number: 11866667Abstract: An energy efficient process for NGL recovery and production of compressed natural gas (CNG) in which natural gas is fed to a first gas separation membrane-based separation stage where it is separated into a permeate and a retentate. The high C3+ concentration first stage permeate is chilled and separated to provide liquid phase NGL and a gaseous phase. The first stage retentate is separated at a second gas membrane-based separation stage to produce a retentate meeting pipeline specifications for CNG (including hydrocarbon dewpoint) and a permeate that is recycled to the first stage. The gaseous phase, constituting a low BTU fuel, may be used in on-site power generation equipment and/or in internal combustion engines. The second stage permeate (and optionally the third stage retentate) is (are) recycled back to the first stage to enhance the production of NGL and CNG.Type: GrantFiled: October 22, 2021Date of Patent: January 9, 2024Assignee: Liquide Advanced Technologies U.S. LLCInventor: Yong Ding