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公开(公告)号：US10722862B2
公开(公告)日：2020-07-28
申请号：US14650780
申请日：2013-12-10
申请人： CECA S.A. , IFP ENERGIES NOUVELLES
摘要： The present invention relates to zeolitic adsorbents based on small agglomerated crystals of zeolite X comprising barium, combining optimum properties in terms of selectivity and of mechanical strength.These adsorbents have applications in the separation of fractions of aromatic C8 isomers and in particular xylenes, in the separation of substituted toluene isomers, such as nitrotoluene, diethyltoluene or toluenediamine, in the separation of cresols and in the separation of polyhydric alcohols, such as sugars.
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2.发明授权公开(公告)号：US09707539B2
公开(公告)日：2017-07-18
申请号：US14888309
申请日：2014-04-29
申请人： IFP ENERGIES NOUVELLES , CECA S.A.
IPC分类号： B01J20/18 , B01J20/28 , B01J20/30 , B01J20/32 , B82Y30/00 , C07C29/76 , C07C37/82 , C07C7/13
CPC分类号： B01J20/186 , B01J20/28004 , B01J20/28007 , B01J20/2803 , B01J20/3028 , B01J20/3042 , B01J20/3071 , B01J20/3078 , B01J20/3085 , B01J20/3204 , B01J20/3236 , B82Y30/00 , C07C7/13 , C07C29/76 , C07C37/82
摘要： The present invention relates to zeolite adsorbents based on agglomerated crystals of zeolite EMT comprising barium and/or potassium. These adsorbents find applications in the separation of aromatic C8 isomer fractions, especially of xylenes, in the separation of substituted toluene isomers, such as nitrotoluene, diethyltoluene and toluenediamine, and in the separation of cresols, and in the separation of polyhydric alcohols, such as sugars.
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公开(公告)号：US10723677B2
公开(公告)日：2020-07-28
申请号：US15037896
申请日：2014-11-20
申请人： CECA S.A. , IFP ENERGIES NOUVELLES
发明人： Catherine Laroche , Ludivine Bouvier , Philibert Leflaive , Cecile Lutz , Anne-Sophie Gay , Florent Moreau
IPC分类号： B01J20/18 , C07C7/13 , B01J20/28 , B01J20/30 , C07C29/76 , C07C15/08 , C07C37/82 , C10G25/03 , B01J20/12
摘要： The present invention relates to a zeolitic granular material having a connected zeolitic structure across the entire volume thereof, having high mechanical resistance to crushing in the bed, and optimised material transfer in the macro-mesopores. The invention also relates to the method for preparing said zeolitic granular material, as well as to the use thereof as an adsorbent material in co-current or counter-current liquid phase separation methods, typically in a simulated mobile bed.
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4.发明授权公开(公告)号：US09914109B2
公开(公告)日：2018-03-13
申请号：US14917457
申请日：2014-09-05
申请人： CECA S.A. , IFP Energies Nouvelles
发明人： Catherine Laroche , Philibert Leflaive , Ludivine Bouvier , Serge Nicolas , Cecile Lutz , Marie-Laurence Labede
IPC分类号： B01J20/12 , B01J20/18 , B01J20/28 , B01J20/30 , C07C29/76 , C07C37/82 , C07C7/13 , C07C201/16 , C07C209/86 , B01D53/02 , B01D53/08
CPC分类号： B01J20/18 , B01D53/02 , B01D53/08 , B01D2253/108 , B01D2257/556 , B01J20/12 , B01J20/186 , B01J20/28004 , B01J20/28059 , B01J20/28061 , B01J20/28071 , B01J20/3028 , B01J20/3071 , B01J20/3085 , C07C7/13 , C07C29/76 , C07C37/82 , C07C201/16 , C07C209/86 , C07C15/08 , C07C15/02 , C07C211/50 , C07C205/06 , C07C39/07
摘要： The present invention relates to zeolitic adsorbents based on agglomerated crystals of FAU zeolite comprising barium and/or potassium, with large external surface area, combining optimum properties in terms of selectivity and mechanical strength.These adsorbents find applications in the separation of cuts of C8-aromatic isomers and notably of xylenes, in the separation of isomers of substituted toluene such as nitrotoluene, diethyltoluene, toluenediamine, in the separation of cresols, and polyhydric alcohols, such as sugars.
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5.发明授权公开(公告)号：US10125064B2
公开(公告)日：2018-11-13
申请号：US15501688
申请日：2015-08-04
申请人： IFP ENERGIES NOUVELLES , CECA S.A.
发明人： Catherine Laroche , Philibert Leflaive , Arnaud Baudot , Ludivine Bouvier , Cecile Lutz , Serge Nicolas
摘要： The invention relates to a method for separating meta-xylene from C8 aromatic fractions, using a zeolitic adsorbent based on sodium-exchanged or sodium-and-lithium-exchanged agglomerated crystals of zeolite Y, with a large external surface area.
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公开(公告)号：US10940458B2
公开(公告)日：2021-03-09
申请号：US16312059
申请日：2017-06-28
IPC分类号： B01J20/18 , B01J20/28 , B01J20/30 , C07C7/13 , B01J35/10 , B01D15/18 , B01D15/08 , B01J37/30 , C01B39/02 , C07C15/08
摘要： Provided is a zeolite-based adsorbent in the form of agglomerates, where the adsorbent having a tortuosity factor, calculated from the pore distribution determined by mercury intrusion porosimetry, of greater than 1 and less than 3. The adsorbent also has a porosity as determined by mercury intrusion porosimetry of between 25% and 35%. The adsorbent is useful in the field of separations in particular in a process for separating para-xylene from aromatic hydrocarbon isomer fractions containing 8 carbon atoms.
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公开(公告)号：US10449511B2
公开(公告)日：2019-10-22
申请号：US15501719
申请日：2015-08-04
IPC分类号： B01J20/18 , B01J20/28 , B01J20/04 , C07C15/08 , B01J20/30 , C07C7/13 , B01D15/18 , B01D53/02 , B01J20/12
摘要： The present invention relates to a zeolite absorbent comprising at least one FAU zeolite with hierarchical porosity and comprising barium or barium and potassium, and the external surface area of which is greater than 20 m2·g−1, and the non-zeolite phase content being between 6% and 12% by weight with respect to the total weight of the absorbent. The present invention also relates to the use of such a zeolite absorbent as an adsorption agent, as well as the method for separation of para-xylene from aromatic isomer fractions with 8 carbon atoms.
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公开(公告)号：US10414702B2
公开(公告)日：2019-09-17
申请号：US14769702
申请日：2014-02-18
发明人： Catherine Laroche , Damien Leinekugel Le Cocq , Philibert LeFlaive , Frederic Augier , Ludivine Bouvier , Cecile Lutz , Sylvie Szendrovics , Quitterie Persillon
摘要： Process for separating xylenes starting from a feed comprising cuts of isomers of aromatic hydrocarbons containing 8 carbon atoms, in a simulated moving bed, by selective adsorption of a xylene isomer in the presence of a desorbent, by means of particles of agglomerated zeolitic adsorbent based on zeolite crystals with a number-average diameter less than or equal to 1.2 μm, wherein the number-average diameter of said particles of adsorbent is between 150 μm and 500 μm and the mechanical strength measured by the Shell method series SMS1471-74 adapted for agglomerates with a size below 500 μm is greater than or equal to 2 MPa.
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公开(公告)号：US20230023245A1
公开(公告)日：2023-01-26
申请号：US17787351
申请日：2020-12-18
摘要： The present invention concerns a zeolitic adsorbent agglomerate comprising at least one zeolite of faujasite type comprising sodium and/or lithium and/or calcium, and/or barium and/or potassium, of porosity between 25% and 45%, and having a standard deviation σ of crystal size distribution in said agglomerate of less than 0.30 μm. The invention also concerns the use of the zeolitic adsorbent agglomerate to separate hydrocarbon mixtures, and the process to separate hydrocarbon mixtures using said zeolitic adsorbent agglomerate.
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公开(公告)号：US11358118B2
公开(公告)日：2022-06-14
申请号：US16955400
申请日：2018-12-17
摘要： The present invention relates to zeolite adsorbents based on agglomerated crystals of zeolite(s) comprising barium and strontium These adsorbents have applications in the separation of fractions of aromatic C8 isomers and in particular xylene.
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