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公开(公告)号：US20240158611A1
公开(公告)日：2024-05-16
申请号：US18548013
申请日：2022-02-21
发明人： Joop DEES , Jens MAGGEN , Chaowei FENG , Bryan CROM , David HOOD
IPC分类号： C08K5/07 , C08F112/08 , C08K5/13 , C08K5/17 , C08K5/18 , C08K5/3435
CPC分类号： C08K5/07 , C08F112/08 , C08K5/13 , C08K5/17 , C08K5/18 , C08K5/3435
摘要： A method of minimizing popcorn polymer seed formation, the method adding a treatment composition to a monomer containing system. A method for inhibiting popcorn polymer growth, the method adding a treatment composition to a monomer containing system, wherein the treatment composition comprises a quinone methide, a quinone methide derivative, or a quinone methide analogue based compound, and wherein the system comprises popcorn seed or polymer.
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公开(公告)号：US20240133776A1
公开(公告)日：2024-04-25
申请号：US18277680
申请日：2022-02-16
发明人： Stanley Needle
IPC分类号： G01N1/20
CPC分类号： G01N1/2035
摘要： Various implementations include a reversible flow sampler including a housing, a housing cover, and a shuttle. The housing defines a sampler chamber with an inlet and an outlet, a first opening, and a second opening. The shuttle is movably disposed within the housing and coupled to the housing cover. The shuttle has a first shuttle position and a second shuttle position. In the first shuttle position, the shuttle fluidly connects the first opening with the sample chamber inlet and fluidly connects the second opening with the sample chamber outlet. In the second shuttle position, the shuttle fluidly connects the second opening with the sample chamber inlet and fluidly connects the first opening with the sample chamber outlet.
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公开(公告)号：US20230331600A1
公开(公告)日：2023-10-19
申请号：US18211198
申请日：2023-06-16
发明人： Paul Robert Frail
CPC分类号： C02F1/683 , C02F5/10 , C23F11/10 , C02F1/72 , C02F2101/36
摘要： A method to reduce or eliminate N-heterocycles, the method providing one or more environmentally benign chelators (EBCs) to an aqueous cooling system, the aqueous cooling system having at least one N-heterocycle in the presence of a halogenating or non-halogenating oxidizer. A method to reduce or eliminate AOX, the method providing one or more environmentally benign chelators (EBCs) to an aqueous cooling system, the aqueous cooling system having at least one AOX-containing species in the presence of a halogenating biocide.
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公开(公告)号：US11724947B2
公开(公告)日：2023-08-15
申请号：US16998704
申请日：2020-08-20
CPC分类号： C02F3/1273 , B01D63/02 , B01D63/027 , B01D63/04 , B01D69/081 , C02F3/102 , C02F3/103 , C02F3/208 , B01D2325/40 , C02F2303/20 , Y02W10/10
摘要： A cord for supporting a biofilm has a plurality of yarns. At least one of the yarns comprises a plurality of hollow fiber gas transfer membranes. At least one of the yarns extends along the length of the cord generally in the shape of a spiral. Optionally, one or more of the yarns may comprise one or more reinforcing filaments. In some examples, a reinforcing yarn is wrapped around a core. A module may be made by potting a plurality of the cords in at least one header. A reactor may be made and operated by placing the module in a tank fed with water to be treated and supplying a gas to the module. In use, a biofilm covers the cords to form a membrane biofilm assembly.
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公开(公告)号：US20230127513A1
公开(公告)日：2023-04-27
申请号：US17915459
申请日：2021-03-30
发明人： JIANWEN ZHAI , LINGLU YANG , TINGTING WANG , ZHIGUO WU
摘要： A spiral wound membrane module has a brackish water RO or NF membrane combined with a permeate carrier having a narrow spacing between membrane contacting elements. The membrane may have water permeability (A-Value) of at least 8*10−5 cm/s/bar at 25° C. The membrane may have salt diffusion rate (B-Value) of at least 0.5*10−5 cm/s at 25° C. The permeate carrier may have a density of 54 wales per inch or more of a gap between adjacent ribs of 215 um or less. The permeate carrier may have a channel cross-sectional area of 16*10−9 m2 or more. Water is fed to the module at a high feed pressure, for example a pressure of at least 50 bar, optionally up to 120 bar. Retentate may be discharged at a concentration of 100 g/L, 130 g/L, or 150 g/L or more.
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6.发明申请公开(公告)号：US20220331742A1
公开(公告)日：2022-10-20
申请号：US17640521
申请日：2020-08-18
发明人： Xingpeng ZHANG , Dongying YE , Jeffrey MELZER , Caroline SUI , Qiantao CAI , Monica SHARMA
摘要： An antiscalant composition, the composition having a silica inhibitor composition, and a dispersant composition. A method for inhibiting scale formation in a membrane system, the method providing an antiscalant composition, the antiscalant composition having a silica inhibitor and a dispersant, and adding the antiscalant composition to an aqueous stream of an aqueous system.
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公开(公告)号：US20220316995A1
公开(公告)日：2022-10-06
申请号：US17620340
申请日：2019-06-26
发明人： Lukas SWANSON
摘要： Various implementations include a device for analyzing total organic carbon (TOC) within a fluid. The device includes a primary container, an input conduit, and an output conduit. The primary container is hollow and has a primary side wall and a primary end wall. The primary side wall has an inner surface defining a primary cavity and an outer surface opposite and spaced apart from the inner surface. The primary end wall includes a septum that is resiliently penetrable by an analyzer needle of a grab analysis port of a TOC analyzer. The input conduit has an input lumen. The input conduit extends through the primary container such that the input lumen is in fluid communication with the primary cavity. The output conduit has an output lumen.
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8.发明申请公开(公告)号：US20220314167A1
公开(公告)日：2022-10-06
申请号：US17608081
申请日：2020-04-13
发明人： Nick ANTONOPOULOS , Michael DOUPE , Tamizh Aruvi KANAGASABAI , Ravi Chandra Reddy KAPA , Irving ELYANOW
摘要： A high salinity feed water such as seawater is treated to produce a reverse osmosis (RO) concentrate and an RO permeate. Optionally, some or all of the RO concentrate may be filtered to produce a nanofiltration (NF) permeate. Optionally, some feed water can also be filtered to produce NF permeate without first being concentrated by RO treatment. The NF permeate, or a blend of the RO permeate and NF permeate, may be used to produce a product water for injection into an oil-bearing reservoir to enhance oil recovery. Optionally, the product water may have salinity greater than the feedwater, or at least 30 g/L. The product water may have hardness of less than 20 mg/L.
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公开(公告)号：US20220282167A1
公开(公告)日：2022-09-08
申请号：US17633337
申请日：2020-07-08
摘要： A method of improving effluent brine quality, the method (i) providing a mud wash solvent comprising a hydrocarbon having a specific gravity less than that of a desalter brine to be treated; and (ii) adding the mud wash solvent to a mud wash stream of a desalter system to provide a treated effluent brine.
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10.发明授权公开(公告)号：US11406940B2
公开(公告)日：2022-08-09
申请号：US16498201
申请日：2018-03-29
发明人： Jianwen Zhai , Min Luo
IPC分类号： B01D61/02 , B01D61/08 , C02F1/44 , C02F101/12
摘要： This specification describes a method for lowering the content of monovalent ions in a final concentrate of a nanofiltration system relative to a brine and a corresponding nanofiltration system. The nanofiltration system comprises at least three stages of nanofiltration, wherein the concentrate from each segment flows into the next segment. A feed stream is sent into one stage to generate a concentrate stream, and a first portion of the concentrate stream is recirculated to the one stage. The pH of the feed stream is controlled in a range of 2-7. The temperature of the feed stream is in a range of 20-60° C. The feed stream includes the recirculated concentrate stream and at least part of a concentrate generated from an upstream stage. The method and the system described herein can reduce the concentration of monovalent ions in the final concentrate during a nanofiltration separation process.
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