[특허]Absorbent having heterogeneous exchange factor and PSA process employing such an absorbent

Absorbent having heterogeneous exchange factor and PSA process employing such an absorbent 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-053/047
출원번호	US-0158152 (1998-09-22)
우선권정보	FR-0002557 (1998-03-03)
발명자 / 주소	Moreau Serge,FRX Labasque Jacques,FRX Rouge Dominique,FRX
출원인 / 주소	L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, FRX
대리인 / 주소	Young & Thompson
인용정보	피인용 횟수 : 36 인용 특허 : 21

초록 ▼

A heterogeneous adsorbent for the separation of gases, comprising particles of at least one zeolite containing at least one exchanged metal cation selected from monovalent, divalent and/or trivalent cations, the zeolite having an exchange-factor distribution of given mean having a standard deviation for the exchange-factor distribution of between about 0.3% and 5%, and a PSA, VSA or TSA process for separation of a gas flow, such as air, containing at least a first compound, such as nitrogen, which is adsorbed preferentially on the heterogeneous adsorbent, and at least a second compound, such as oxygen, which is less preferentially adsorbed on the heterogeneous adsorbent than the first compound.

대표청구항 ▼

[ What is claimed is:] [1.] Heterogeneous adsorbent for the separation of gases, comprising particles of at least one zeolite containing at least one exchanged metal cation selected from the group consisting of monovalent, divalent and trivalent cations, said zeolite having an exchange-factor distribution of given mean in excess of 0% and less than 100%, and having a standard deviation for the exchange-factor distribution of between about 0.3% and 5%. [12.] Process for manufacturing a heterogeneous adsorbent, in which:a solution of at least one salt of a monovalent, divalent or trivalent metal is percolated through at least one ion-exchange column containing zeolite particles,the percolation is stopped before having consumed a quantity of metal salt equal to about 4 stoichiometric amounts,the monovalent, divalent or trivalent metal content of zeolite particles is homogenized without varying the total quantity of said metal contained in said particles, and so as to obtain a standard deviation for an exchange-factor distribution of between about 0.3% and 5%. Manufacturing process according to claim 12, wherein the metal content is homogenized by closed-loop recirculation of at least some of the metal salt solution. Manufacturing process according to claim 12, wherein the salt is a chloride, the metal is selected from the group consisting of lithium, calcium, sodium, zinc and mixtures thereof, and/or the zeolite is a faujasite whose Si/Al ratio is about 1.

이 특허에 인용된 특허 (21)

Toussaint Lee J. (Lockport NY), Adsorbent beds for pressure swing adsorption operations.
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Ogawa Nobuhiro,JPX ; Hirano Shigeru,JPX ; Itabashi Keiji,JPX, Adsorbent for air separation, production method thereof, and air-separation method using it.
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Fitch Frank R. (Bedminster NJ) Blow Martin (Basking Ridge NJ) Ojo Adeola F. (Chatham NJ), Adsorptive separation of nitrogen from other gases.
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Ojo Adeola F. (Chatham NJ) Fitch Frank R. (Bedminister NJ) Bulow Martin (Basking Ridge NJ), Adsorptive separation of nitrogen from other gases.
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Gaffney Thomas R. (Allentown PA) Kirner John F. (Orefield PA) Kumar Ravi (Allentown PA) Maliszewskyj Robin J. (Hatfield PA), Adsorptive separation using diluted adsorptive phase.
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Coe Charles G. (Macungie PA) Gaffney Thomas R. (Allentown PA) Srinivasan Rajagopalan S. (Allentown PA), Chabazite for gas separation.
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Plee Dominique (Meulan FRX), Industrial adsorbents based on low-silica X zeolites, for non-cryogenic separation of air gases, and their manufacture p.
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Coe Charles G. (Macungie PA) Gaffney Thomas R. (Allentown PA) Li Hong-Xin (Allentown PA) Xiong Yanliang (Heverlee BEX) Martens Johan A. (Huldenberg BEX) Jacobs Pierre A. (Gooik BEX), Li-exchanged low silica EMT-containing metallosilicates.
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Leavitt Frederick W. (Amherst NY), Lithium recovery.
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Coe Charles G. (Macungie PA) MacDougall James E. (Emmaus PA) Weigel Scott J. (Goleta CA), Magnesium A-zeolite for nitrogen adsorption.
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Coe Charles G. (Macungie PA) Kirner John F. (Orefield PA) Pierantozzi Ronald (Orefield PA) White Thomas R. (Allentown PA), Nitrogen adsorption with a Ca and/or Sr exchanged lithium X-zeolite.
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Coe Charles G. (Macungie PA) Kirner John F. (Orefield PA) Pierantozzi Ronald (Orefield PA) White Thomas R. (Allentown PA), Nitrogen adsorption with a divalent cation exchanged lithium X-zeolite.
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Kirner John F. (Orefield PA), Nitrogen adsorption with highly Li exchanged X-zeolites with low Si/Al ratio.
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Gaffney Thomas R. (Allentown PA) Kirner John F. (Orefield PA) Kumar Ravi (Allentown PA) Maliszewskyj Robin J. (Hatfield PA) Schmidt William P. (Allentown PA), O₂ VSA process with low O₂ capacity adsorbents.
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Leavitt Frederick W. (Amherst NY), Process for producing mixed-cation zeolites.
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Chao Chien C. (Millwood NY), Process for separating nitrogen from mixtures thereof with less polar substances.
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Labasque Jacques,FRX ; Moreau Serge,FRX ; Rouge Dominique,FRX, Process for the separation of gas mixtures containing oxygen and nitrogen.
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Moreau Serge (Velizy Villacoublay FRX) Barbe Christian (Fontenay Sous Bois FRX), Process for the separation of mixtures of oxygen and of nitrogen employing an adsorbent with improved porosity.
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Vigor Xavier (Paris FRX) Petit Pierre (Buc FRX) Moreau Serge (Velizy Villacoublay FRX) Sardan Bernard (Plaisir FRX), Process for the separation of nitrogen from a gaseous mixture by adsorption.
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Ojo Adeola F. (Chatham NJ) Fitch Frank R. (Bedminster NY) Blow Martin (Basking Ridge NJ), Removal of carbon dioxide from gas streams.
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Maroulis Peter J. (Allentown PA) Coe Charles G. (Macungie PA) Kuznicki Steven M. (Easton PA) Clark Patrick J. (Palmerton PA) Roberts David A. (Allentown PA), Selective adsorption process using an oxidized ion-exchanged dehydrated chabizite adsorbent.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Absorbent having heterogeneous exchange factor and PSA process employing such an absorbent 원문보기

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연합인증

Absorbent having heterogeneous exchange factor and PSA process employing such an absorbent 원문보기

초록 ▼

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연구과제 타임라인

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이 특허에 인용된 특허 (21)

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