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公开(公告)号：US11278848B2
公开(公告)日：2022-03-22
申请号：US14493799
申请日：2014-09-23
申请人： NGK Insulators, Ltd.
发明人： Kenji Yajima , Makoto Miyahara , Tetsuya Uchikawa , Makoto Teranishi , Makiko Ichikawa , Hideyuki Suzuki
IPC分类号： B01D71/02 , B01D63/06 , C04B38/00 , B01D69/10 , C04B111/00
摘要： A separation membrane structure has partition walls including a honeycomb shaped porous ceramic body provided with a large number of pores, and cells to become through channels of a fluid are formed by the partition walls. The cells include separation cells and slit cells. In the separation cells, the intermediate layer is disposed on the surface of a substrate, and a separation layer is further formed. The intermediate layer has a structure where aggregate particles are bonded to one another by an inorganic bonding material having a thermal expansion coefficient equal to or higher than that of the aggregate particles.
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公开(公告)号：US20200269188A1
公开(公告)日：2020-08-27
申请号：US16494807
申请日：2017-05-12
发明人： Hiroaki Hasegawa , Yasushi Fujimora , Aiko Matsuyama , Shuichi Oguro , Keiichi Nishida , Akiko Fukuta , Kenjii Yajima , Makiko Ichikawa , Takeshi Hagio , Naoko Takahashi , Makoto Miyahara , Katsuya Shimizu
摘要： Provided is a gas separation device configured to separate a non-hydrocarbon gas from a feed gas containing the non-hydrocarbon gas through use of a gas separation membrane, in which a decrease in operating rate can be suppressed, and economic efficiency is satisfactory. A first membrane module (1) and a second membrane module (2) are arranged in parallel to each other with respect to supply lines for a feed gas. Gas lines for regeneration (14, 15) ((24, 25)), which are branched from a permeate gas line (13) ((23)) of the membrane module (1) ((2)), and which are joined to a feed gas line (21) ((11)) configured to supply the feed gas to the membrane module (2) ((1)), are provided. Under a state in which the feed gas is supplied to the membrane module (1), a permeate gas through the membrane module (1) is supplied, as a gas for regeneration, to the membrane module (2) through the gas lines for regeneration (14, 15). In this case, the membrane module (2) is brought into a non-operation state, and the membrane module (2) is regenerated.
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公开(公告)号：US10518197B2
公开(公告)日：2019-12-31
申请号：US14851425
申请日：2015-09-11
申请人： NGK Insulators, Ltd.
IPC分类号： B01D29/00 , B01D29/05 , B01D46/00 , B01D63/06 , B01D67/00 , B01D69/10 , B01D69/12 , B01D71/02 , C04B35/111 , C04B35/14 , C04B35/46 , C04B38/00 , C04B41/85 , C04B41/89 , C04B111/00
摘要： A monolithic separation membrane structure comprises a substrate, a first support layer and a separation membrane. The substrate is composed of a porous material and including a plurality of through holes. The first support layer is formed on an inner surface of the plurality of through holes. The separation membrane arranged in the first support layer. The first support layer includes an aggregate material having alumina as a main component, an inorganic binder have titania as a main component, and a sintering additive having at least one of silica and magnesia as a main component.
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4.发明授权公开(公告)号：US09901882B2
公开(公告)日：2018-02-27
申请号：US15248074
申请日：2016-08-26
申请人： NGK Insulators, Ltd.
发明人： Takeshi Hagio , Makiko Ichikawa , Kenji Yajima , Makoto Miyahara
CPC分类号： B01D71/028 , B01D53/228 , B01D67/0046 , B01D67/0051 , B01D69/10 , B01D2253/108 , B01D2255/50 , B01J29/70 , C01B37/02 , C01B39/48 , Y10T428/2982
摘要： There are provided DDR type zeolite seed crystals capable of inhibiting generation of surplus DDR type zeolite crystals in the case of using the DDR type zeolite seed crystals as seed crystals upon forming a DDR type zeolite membrane on the surface of a porous support. The DDR type zeolite seed crystals have an average particle size of 0.05 to 1.5 μm; contain 90% or more of particles having an aspect ratio, which is obtained by dividing the maximum Feret's diameter by the minimum Feret's diameter, of 1 to 3; and have not more than 0.3 of a coefficient of variation of the square of the aspect ratio.
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公开(公告)号：US09782729B2
公开(公告)日：2017-10-10
申请号：US14696805
申请日：2015-04-27
申请人： NGK Insulators, Ltd.
发明人： Makoto Miyahara , Makiko Ichikawa
IPC分类号： B01D39/00 , B01D39/16 , B01D67/00 , B29C44/04 , B01D71/02 , C04B38/00 , B01D65/10 , B01D69/04 , B01D63/06 , C04B111/00
CPC分类号： B01D71/028 , B01D63/066 , B01D65/108 , B01D67/0048 , B01D69/04 , B01D2321/28 , B01D2321/32 , B01D2325/12 , C04B38/0006 , C04B2111/00793 , C04B35/00
摘要： A ceramic separation membrane structure in which a zeolite separation membrane formed on a ceramic porous body is repaired, and a repair method thereof. In the ceramic separation membrane structure, a zeolite separation membrane is disposed on a ceramic porous body, and defects of the zeolite separation membrane are repaired by zeolite repaired portions containing zeolite of structure different from the structure of zeolite of the zeolite separation membrane. The zeolite separation membrane and the zeolite repaired portions are made of a hydrophobic zeolite having a ratio of SiO2/Al2O3=100 or more.
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公开(公告)号：US11219879B2
公开(公告)日：2022-01-11
申请号：US14867127
申请日：2015-09-28
申请人： NGK Insulators, Ltd.
发明人： Takeshi Hagio , Makoto Miyahara , Tetsuya Uchikawa , Makiko Ichikawa , Kenichi Noda , Kenji Yajima
IPC分类号： B01J20/06 , B01D69/12 , B01D71/02 , B01D67/00 , B01J20/30 , C01B37/04 , C04B35/63 , B01D63/06 , C04B38/00 , C04B35/447 , B01J20/28 , C01B39/54 , C04B111/00
摘要： An aluminophosphate-metal oxide bonded body including a metal oxide having a bonding surface on a part of the surface thereof, and aluminophosphate that is disposed on the bonding surface of the metal oxide, wherein an alkali metal, an alkaline earth metal or both of these is/are disposed on the bonding surface of the metal oxide, and the content rate of the alkali metal, alkaline earth metal or both is from 0.3 to 30.0% by mass with respect to all of the substances that are disposed on the bonding surface of the metal oxide. An aluminophosphate-metal oxide bonded body that provides a favorable bonded state even for complicated shapes is provided.
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公开(公告)号：US11135545B2
公开(公告)日：2021-10-05
申请号：US16494807
申请日：2017-05-12
发明人： Hiroaki Hasegawa , Yasushi Fujimora , Aiko Matsuyama , Shuichi Oguro , Keiichi Nishida , Akiko Fukuta , Kenjii Yajima , Makiko Ichikawa , Takeshi Hagio , Naoko Takahashi , Makoto Miyahara , Katsuya Shimizu
摘要： Provided is a gas separation device configured to separate a non-hydrocarbon gas from a feed gas containing the non-hydrocarbon gas through use of a gas separation membrane, in which a decrease in operating rate can be suppressed, and economic efficiency is satisfactory. A first membrane module (1) and a second membrane module (2) are arranged in parallel to each other with respect to supply lines for a feed gas. Gas lines for regeneration (14, 15) ((24, 25)), which are branched from a permeate gas line (13) ((23)) of the membrane module (1) ((2)), and which are joined to a feed gas line (21) ((11)) configured to supply the feed gas to the membrane module (2) ((1)), are provided. Under a state in which the feed gas is supplied to the membrane module (1), a permeate gas through the membrane module (1) is supplied, as a gas for regeneration, to the membrane module (2) through the gas lines for regeneration (14, 15). In this case, the membrane module (2) is brought into a non-operation state, and the membrane module (2) is regenerated.
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公开(公告)号：US10550005B2
公开(公告)日：2020-02-04
申请号：US16142361
申请日：2018-09-26
申请人： NGK INSULATORS, LTD.
IPC分类号： C01B39/04 , C01B39/48 , B01J29/40 , B01J29/70 , B01J29/06 , C01B39/40 , C01B39/38 , B01J37/10 , B01J37/00 , C01B39/02 , C01B39/46
摘要： A production method for zeolite powder containing forming zeolite seed crystals by wet pulverizing zeolite crystals using a silica unsaturated alkali solution containing an alkali source, preparing a silica saturated alkali solution by adding a silica source to the silica unsaturated alkali solution containing the zeolite seed crystals, and synthesizing zeolite powder by hermetically heating the silica saturated alkali solution.
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公开(公告)号：US10258933B2
公开(公告)日：2019-04-16
申请号：US14858201
申请日：2015-09-18
申请人： NGK Insulators, Ltd.
发明人： Kenji Yajima , Takeshi Hagio , Makoto Miyahara , Tetsuya Uchikawa , Naoko Inukai , Makiko Ichikawa
摘要： Provided is a zeolite membrane manufactured by: subjecting a porous body to heat treatment at 400° C. or more in the presence of oxygen as pretreatment, before adhering zeolite seed crystals to a surface of the porous body; storing the porous body under an environment of humidity of 30% or more for 12 hours or more after the heat treatment; and subsequently adhering the zeolite seed crystals to the porous body. The zeolite membrane having oxygen eight-membered rings, which is manufactured by subjecting the porous body to the heat treatment, provides a value that is obtained by dividing a permeance of CF4 by a permeance of CO2 to be 0.015 or less, and has fewer defects.
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公开(公告)号：US20190023580A1
公开(公告)日：2019-01-24
申请号：US16142361
申请日：2018-09-26
申请人： NGK INSULATORS, LTD.
IPC分类号： C01B39/48
摘要： A production method for zeolite powder containing forming zeolite seed crystals by wet pulverizing zeolite crystals using a silica unsaturated alkali solution containing an alkali source, preparing a silica saturated alkali solution by adding a silica source to the silica unsaturated alkali solution containing the zeolite seed crystals, and synthesizing zeolite powder by hermetically heating the silica saturated alkali solution.
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