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公开(公告)号：US12157087B2
公开(公告)日：2024-12-03
申请号：US18463214
申请日：2023-09-07
Applicant: UOP LLC
Inventor： Chunqing Liu , Xueliang Dong , Jeremy Webb
IPC: B01D53/22 , B01D61/36 , B01D67/00 , B01D69/02 , B01D69/08 , B01D69/12 , B01D71/64 , B01D71/68 , B01D71/70 , C08J5/18 , C10L3/10
Abstract: A low cost, high selectivity asymmetric polyimide/polyethersulfone (PES) blend hollow fiber membrane, a method of making the membrane and its use for a variety of liquid, gas, and vapor separations such as deep desulfurization of gasoline and diesel fuels, ethanol/water separations, pervaporation dehydration of aqueous/organic mixtures, CO2/CH4, CO2/N2, H2/CH4, He/CH4, O2/N2, H2S/CH4, olefin/paraffin, iso/normal paraffins separations, and other light gas mixture separations. The polyimide/PES blend hollow fiber membrane is fabricated from a blend of a polyimide polymer and PES and showed surprisingly unique gas separation property with higher selectivities than either the polyimide hollow fiber membrane without PES polymer or the PES hollow fiber membrane without PES polymer for gas separations such as for H2/CH4, He/CH4, H2S/CH4, CO2/CH4 separations.
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公开(公告)号：US20240191373A1
公开(公告)日：2024-06-13
申请号：US18064023
申请日：2022-12-09
Applicant: UOP LLC
Inventor： Chunqing Liu , Xueliang Dong , Dennis F. van der Vliet , Saad Intikhab , Shurong Yang
IPC: C25B11/075 , C25B11/055 , C25B13/04
CPC classification number: C25B11/075 , C25B11/055 , C25B13/04
Abstract: Catalyst ink formulas for the preparation of CCMs are described. The catalyst ink formulas comprise a catalyst, an ionomer, a solvent, and a porogen soluble in the solvent. The catalyst ink formula may also comprise an additive, such as an electron conductive polymer. The anode catalyst coating layer or both the anode and the cathode catalyst coating layers prepared from the catalyst ink formula comprises uniformly distributed nanopores that allow easy gas removal and uniform water feed distribution, which will avoid or reduce the direct energy losses for the electrolyzers. Catalyst coated membranes and methods of making a catalyst coated membranes are also described.
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公开(公告)号：US11955678B2
公开(公告)日：2024-04-09
申请号：US17474200
申请日：2021-09-14
Applicant: UOP LLC
Inventor： Chunqing Liu , Chaoyi Ba , Xueliang Dong
CPC classification number: H01M8/188 , H01M4/8657 , H01M4/8853 , H01M8/18 , H01M2004/8684 , H01M2300/0002
Abstract: Methods to improve redox flow battery performance with improved CE, reduced electrolyte solution crossover, and simplified solution refreshing process have been developed. The methods include controlling the pre-charging degree and conditions to allow high quality metal plating (ductile and uniform), for example, Fe(O), on the negative electrode. Control of the pre-charging conditions can be combined with increasing the concentration of metal ions compared to existing systems, while maintaining the same concentration in both the negative and positive electrolytes, or increasing the concentration of metal ions in the negative electrolyte so that the negative electrolyte has a higher concentration of metal ions than the positive electrolyte.
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公开(公告)号：US20240068116A1
公开(公告)日：2024-02-29
申请号：US18319762
申请日：2023-05-18
Applicant: UOP LLC
Inventor： Xueliang Dong , Chunqing Liu , Nicole Karns
Abstract: A porous ion-permeable separator membrane with an asymmetric pore structure in which the top of the membrane (the side opposite the porous substrate) has smaller pores than the pores in the rest of the polymer coating (i.e., closer to the porous substrate) is described. The porous ion-permeable asymmetric composite membrane comprises polymers, inorganic particles, and a porous substrate which is stable at a pH of 8 or higher.
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公开(公告)号：US11837767B2
公开(公告)日：2023-12-05
申请号：US17388962
申请日：2021-07-29
Applicant: UOP LLC
Inventor： Chunqing Liu , Xueliang Dong , Chaoyi Ba , Stuart R. Miller , James H. K. Yang
CPC classification number: H01M8/188 , H01M8/08 , H01M2300/0005
Abstract: Stable and high performance positive and negative electrolytes compositions to be used in redox flow battery systems are described. The redox flow battery system, comprises: at least one rechargeable cell comprising a positive electrolyte, a negative electrolyte, and an ionically conductive membrane positioned between the positive electrolyte and the negative electrolyte, the positive electrolyte in contact with a positive electrode, and the negative electrolyte in contact with a negative electrode. The positive electrolyte consists essentially of water, a first amino acid, an inorganic acid, an iron precursor, a supporting electrolyte, and optionally a boric acid. The negative electrolyte consists essentially of water, the iron precursor, the supporting electrolyte, and a negative electrolyte additive. The iron precursor is FeCl2, FeCl3, FeSO4, Fe2(SO4)3, FeO, Fe, Fe2O3, or combinations thereof. The supporting electrolyte is LiCl, NaCl, Na2SO4, KCl, NH4Cl, or combinations thereof. The negative electrolyte additive is boric acid or a combination of the boric acid and a second amino acid.
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Patent Agency Ranking
公开(公告)号：US20230102700A1
公开(公告)日：2023-03-30
申请号：US17474198
申请日：2021-09-14
Applicant: UOP LLC
Inventor： Chaoyi Ba , Chunqing Liu , Xueliang Dong
IPC: B01J41/13 , H01M8/103 , H01M8/1004 , C25B13/08 , C25B1/04 , C25B11/032 , C08G73/06 , C08J5/22
Abstract: Anion exchange polymers having high OH− conductivity, chemical stability, and mechanical stability have been developed for use in AEMs. The anion exchange polymers have stable hydrophobic polymer backbones, stable hydrophilic quaternary ammonium cationic groups, and hydrophilic phenolic hydroxyl groups on the polymer side chains. The polymers have polymer backbones free of ether bonds, hydrophilic polymer side chains, and piperidinium ion-conducting functionality, which enables efficient and stable operation in water or CO2 electrolysis, redox flow battery, and fuel cell applications. The polymer comprises a plurality of repeating units of formula (I) Anion exchange membranes and membrane electrode assemblies incorporating the anion exchange polymers are also described.
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公开(公告)号：US20240228713A1
公开(公告)日：2024-07-11
申请号：US18064569
申请日：2022-12-12
Applicant: UOP LLC
Inventor： Haitao Qian , Chunqing Liu , Nicholas Haxel , Nicole Karns , Xueliang Dong , Saad Intikhab
IPC: C08J5/22 , B01D61/46 , H01M50/409
CPC classification number: C08J5/2243 , B01D61/46 , H01M50/409
Abstract: Anion exchange polymers comprise a plurality of repeating units of formula (I). The polymer may be synthesized from a super acid catalyzed polyhydroxyalkylation reaction of monomers Ar1′ and X1′ to form a neutral precursor polymer followed by a Menshutkin reaction to convert the neutral precursor polymer to the anion exchange polymer with halide-based counterions, and then an ion exchange reaction to covert the anion exchange polymer with halide-based counterions to acetate (CH3COO−), trifluoroacetate (CF3COO−), propionate (CH3CH2COO−), or butanoate anion (CH3CH2CH2COO−) counterions.
Anion exchange membranes and membrane electrode assemblies incorporating the anion exchange polymers are also described.-
公开(公告)号：US20240209532A1
公开(公告)日：2024-06-27
申请号：US18459615
申请日：2023-09-01
Applicant: UOP LLC
Inventor： Chunqing Liu , Shurong Yang , Xueliang Dong , Dennis F. van der Vliet , Zhihao Shang , Matthew J. Schmidt
IPC: C25B13/08 , C25B9/23 , C25B11/052 , C25B11/081
CPC classification number: C25B13/08 , C25B9/23 , C25B11/052 , C25B11/081
Abstract: A new multilayer ion-exchange membrane comprising an ion-exchange membrane layer, a catalyst layer coated on a first surface of the ion exchange membrane, a first polyelectrolyte multilayer coated on the catalyst layer, and optionally a second polyelectrolyte multilayer coated on a second surface of the ion-exchange membrane for electrolysis applications has been developed.
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公开(公告)号：US20230415095A1
公开(公告)日：2023-12-28
申请号：US18463214
申请日：2023-09-07
Applicant: UOP LLC
Inventor： Chunqing Liu , Xueliang Dong , Jeremy Webb
IPC: B01D53/22 , B01D71/64 , B01D71/68 , B01D69/02 , B01D69/08 , B01D69/12 , B01D67/00 , C08J5/18 , C10L3/10 , B01D61/36
CPC classification number: B01D53/228 , B01D71/64 , B01D71/68 , B01D69/02 , B01D69/087 , B01D69/125 , B01D69/085 , B01D67/0095 , B01D67/0083 , B01D67/0088 , B01D67/009 , C08J5/18 , C10L3/104 , C10L3/103 , B01D61/362 , C08J2381/06 , B01D2053/224 , B01D2323/30 , B01D2323/22 , B01D2325/022 , B01D2325/20 , C10L2290/548 , C08J2379/08 , C08J2481/06 , C08J2479/08
Abstract: A low cost, high selectivity asymmetric polyimide/polyethersulfone (PES) blend hollow fiber membrane, a method of making the membrane and its use for a variety of liquid, gas, and vapor separations such as deep desulfurization of gasoline and diesel fuels, ethanol/water separations, pervaporation dehydration of aqueous/organic mixtures, CO2/CH4, CO2/N2, H2/CH4, He/CH4, O2/N2, H2S/CH4, olefin/paraffin, iso/normal paraffins separations, and other light gas mixture separations. The polyimide/PES blend hollow fiber membrane is fabricated from a blend of a polyimide polymer and PES and showed surprisingly unique gas separation property with higher selectivities than either the polyimide hollow fiber membrane without PES polymer or the PES hollow fiber membrane without PES polymer for gas separations such as for H2/CH4, He/CH4, H2S/CH4, CO2/CH4 separations.
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公开(公告)号：US20230365744A1
公开(公告)日：2023-11-16
申请号：US17662676
申请日：2022-05-10
Applicant: UOP LLC
Inventor： Chunqing Liu , Xueliang Dong
CPC classification number: C08G61/121 , B01J41/14 , B01J41/09 , C25B9/23 , C25B13/08
Abstract: Anion exchange polymers comprise a plurality of repeating units of formula (I). The polymer may be synthesized from a super acid catalyzed polyhydroxyalkylation reaction of monomers Ar1′, Ar2′, and X1′ to form a neutral precursor polymer followed by a Menshutkin reaction to convert the neutral precursor polymer to the anion exchange polymer.
Anion exchange membranes and membrane electrode assemblies incorporating the anion exchange polymers are also described.
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