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公开(公告)号：US12121865B2
公开(公告)日：2024-10-22
申请号：US17105284
申请日：2020-11-25
发明人： Jailton Ferreira Do Nascimento , Cristina Cardoso Pereira , Wilson Mantovani Grava , Cristiano Piacsek Borges
CPC分类号： B01D67/0013 , B01D67/0009 , B01D67/00165 , B01D67/0083 , B01D67/0095 , B01D69/087 , B01D71/421 , B01D71/643 , B01D71/68 , B01D2323/081 , B01D2323/12 , B01D2323/21
摘要： The present invention deals with a method for obtaining membranes in the form of hollow fibers with application in the field of carbon dioxide removal from natural gas. The aforementioned membranes are obtained by means of heat treatment of polymeric membranes. In this method, polymeric membranes are obtained by a phase-inversion technique by immersion-precipitation and are subsequently subjected to a heat treatment, that is, that the membranes effectively become precursor membranes of the heat treatment. The heat treatment process involves the optimization of the heating rate, temperature, and stabilization time variables, aiming at the improvement of the transport properties of the polymeric membranes. After the heat treatment, it becomes possible to use the membranes in separation processes of gases which operate at pressures greater than 30 bar, with selectivity for carbon dioxide (CO2).
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公开(公告)号：US20240342984A1
公开(公告)日：2024-10-17
申请号：US18607286
申请日：2024-03-15
申请人： ENTEGRIS, INC.
IPC分类号： B29C64/153 , B01D67/00 , B01D69/06 , B01D71/02 , B22F7/02 , B29C64/268 , B33Y10/00 , B33Y30/00
CPC分类号： B29C64/153 , B01D67/00411 , B01D67/00415 , B01D69/06 , B01D71/022 , B22F7/02 , B29C64/268 , B33Y10/00 , B33Y30/00
摘要： Described are porous sintered metal bodies and methods of making porous sintered metal bodies by additive manufacturing methods.
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公开(公告)号：US20240342664A1
公开(公告)日：2024-10-17
申请号：US18493651
申请日：2023-10-24
发明人： Chen Zhang , Gaurav M. Iyer
CPC分类号： B01D71/021 , B01D53/228 , B01D67/0067 , B01D69/02 , B01D69/08 , B01D2256/16 , B01D2257/504 , B01D2325/20
摘要： The present invention relates to aramid-derived carbon molecular sieve membranes, the preparation of said membranes, and uses thereof, including the separation of gases in a mixture. The aramid-derived carbon molecular sieve membranes of the present invention show excellent gas selectivity properties, and are able to be selective towards separating gases, such as H2, from a mixture of gases.
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公开(公告)号：US20240342645A1
公开(公告)日：2024-10-17
申请号：US18635381
申请日：2024-04-15
发明人： Jong Suk LEE , Ju Ho SHIN , Ho Jun LEE
CPC分类号： B01D53/228 , B01D67/0006 , B01D69/02 , B01D71/32 , B01D71/82 , B01D2256/10 , B01D2256/24 , B01D2257/504 , B01D2323/081 , B01D2323/14 , B01D2323/219 , B01D2323/30 , B01D2325/02831 , B01D2325/02832 , B01D2325/04 , B01D2325/20 , B01D2325/28 , B01D2325/30
摘要： The present disclosure relates to a highly-permeable microporous thermally crosslinked polymer membrane obtained by thermally crosslinking halogenated aromatic polymers having multiple benzene rings and a halogenated benzene ring, and a preparation method thereof. The microporous thermally crosslinked polymer membrane according to an embodiment of the present disclosure has a dramatically increased free volume, thus enabling excellent gas separation performance, particularly high gas permeability, and improved plasticization resistance, chemical resistance, and durability.
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公开(公告)号：US12115502B2
公开(公告)日：2024-10-15
申请号：US17052692
申请日：2019-06-04
发明人： Volkmar Thom , Jörg Hosch , Benjamin Schneider
CPC分类号： B01D69/02 , B01D61/147 , B01D65/10 , B01D67/0013 , G01N15/088 , G01N23/2251 , B01D2325/022 , B01D2325/04 , G01N2223/07 , G01N2223/401 , G01N2223/418 , G01N2223/507
摘要： The present invention relates to a serial arrangement comprising n plies of asymmetric filter media, wherein n is at least two and the pore size of the n plies substantially continuously decreases in the thickness direction of the serial arrangement, to a production method for the serial arrangement, to a filtration unit comprising the serial arrangement, to the use of the serial arrangement, and to a method for characterizing the pores of a filter medium.
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公开(公告)号：US20240325986A1
公开(公告)日：2024-10-03
申请号：US18625168
申请日：2024-04-02
申请人： DECHEMA-Forschungsinstitut , Friedrich-Alexander-Universität Erlangen-Nürnberg , Uniwell Rohrsysteme GmbH & Co. KG
发明人： Beatriz Sánchez Batalla , Simon Fischer , Zongwen Fu , Claudia Weidlich , Julien Bachmann , Thorsten Struckmann , Armin Laube , André Hofer , Sebastian Wachter , Carolin Körner , Dorothea Wisser
CPC分类号： B01D67/00931 , B01D71/68 , B01D2323/36 , B01D2323/60 , B01D2325/26 , B01D2325/42
摘要： A method (500) for conditioning or hydrolysis of an extruded membrane is disclosed. The method (500) comprising ion exchange processes in divided electrochemical cells using a cation exchanger membrane. The method (500) includes extruding the perfluorosulfonyl fluoride membranes from perfluorosulfonyl fluoride granulate. The method (500) also includes using a pretreatment technique to increase the ionic conductivity of the extruded perfluorosulfonyl fluoride membranes before using the perfluorosulfonic acid membranes in electrolysis cells. The method (500) also includes applying a milder pretreatment technique by activating S—F bonds to execute nucleophilic exchange of the fluoride group in a reaction. The method (500) also includes hydrolyzing sulfonyl fluoride groups to sulfonic acid using triethylsilanol.
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7.发明公开公开(公告)号：US20240325977A1
公开(公告)日：2024-10-03
申请号：US18576187
申请日：2022-08-31
发明人： Yuji Katayama , Masato Mikawa , Takahiro Osaki
IPC分类号： B01D61/00 , B01D67/00 , B01D69/04 , B01D69/06 , B01D69/08 , B01D69/10 , B01D71/56 , G01N1/40
CPC分类号： B01D61/005 , B01D67/0016 , B01D69/043 , B01D69/06 , B01D69/087 , B01D69/10 , B01D71/56 , G01N1/4005 , G01N2001/4016
摘要： The present invention is a concentration method for concentrating, before performing analysis using an analysis device, an analysis solution that includes an analysis solute and an analysis solvent. The concentration method is based on forward osmosis in which, using a concentration device, the analysis solution and the induction solution are brought into mutual contact via a forward osmosis membrane so that the analysis solvent within the analysis solution is removed by being allowed to pass through the forward osmosis membrane and be transferred into the induction solvent. The concentration device includes: a forward osmosis membrane module including the forward osmosis membrane; an analysis solution tank; analysis solution feed piping: an induction solution tank; and induction solution feed piping. The total of the capacity of an analysis solution fluid flow section of the forward osmosis membrane module and the capacity of the analysis solution feed piping is 500 mL or less. The concentration of the analysis solute in the analysis solution is 0.01 ppm or less, and the concentration of the analysis solute in the analysis solution after concentration is 0.02 ppm or greater.
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公开(公告)号：US12104030B2
公开(公告)日：2024-10-01
申请号：US18235785
申请日：2023-08-18
发明人： Chang Hyun Lee , Jin Pyo Hwang
IPC分类号： C08J5/22 , B01D61/44 , B01D67/00 , B01D69/10 , B01D69/12 , B01D71/26 , B01D71/36 , B01D71/48 , B01D71/56 , B01D71/64 , B01D71/66 , B01J39/20 , B01J41/13 , B01J41/14
CPC分类号： C08J5/2293 , B01D61/44 , B01D67/0093 , B01D69/107 , B01D69/12 , B01D71/261 , B01D71/262 , B01D71/36 , B01D71/48 , B01D71/56 , B01D71/64 , B01D71/66 , B01J41/13 , B01J41/14 , C08J5/2281 , B01J39/20 , C08J2327/18
摘要： The present inventive concept relates to a chemically modified anion exchange membrane and a method of preparing the same and, more particularly, an anion exchange membrane in which sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane are substituted with anion conductive groups such as an ammonium group, a phosphonium group, an imidazolium group, a pyridinium group and a sulfonium group, and a method of preparing an anion exchange membrane by chemically modifying sulfonic acid groups in a perfluorinated sulfonic acid electrolyte membrane.
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公开(公告)号：US12102967B2
公开(公告)日：2024-10-01
申请号：US18607198
申请日：2024-03-15
发明人： Isam H Aljundi , Abdelrahman M Awad
CPC分类号： B01D69/148 , B01D53/228 , B01D67/0079 , B01D67/00791 , B01D67/00793 , B01D69/12 , B01D69/1251 , B01D71/021 , B01D71/0211 , B01D71/0212 , B01D71/56
摘要： 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.
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公开(公告)号：US20240316508A1
公开(公告)日：2024-09-26
申请号：US18579441
申请日：2022-07-13
发明人： Mohamed EDDAOUDI , Sheng ZHOU , Osama SHEKHAH , Jiangtao JIA
CPC分类号： B01D71/028 , B01D53/228 , B01D67/0079 , B01D69/108 , B01D2256/245 , B01D2257/102
摘要： Embodiments include a method of making a continuous metal-organic framework membrane, the method including contacting a rare earth- or zirconium-containing compound, an acid, a solvent, and optionally water sufficient to form a hexanuclear cluster solution, contacting the hexanuclear cluster solution with one or more ditopic ligands sufficient to form a metal-organic framework (MOF) solution, contacting the MOF solution with a support, and applying a current to the MOF solution with support, sufficient to provide a continuous metal-organic framework membrane.
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