FR3076743A1 - ADSORBENT WITH WAVE-CROSS STRUCTURE - Google Patents

ADSORBENT WITH WAVE-CROSS STRUCTURE Download PDF

Info

Publication number
FR3076743A1
FR3076743A1 FR1850330A FR1850330A FR3076743A1 FR 3076743 A1 FR3076743 A1 FR 3076743A1 FR 1850330 A FR1850330 A FR 1850330A FR 1850330 A FR1850330 A FR 1850330A FR 3076743 A1 FR3076743 A1 FR 3076743A1
Authority
FR
France
Prior art keywords
adsorbent
structured
fabrics
structured adsorbent
adsorbent according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR1850330A
Other languages
French (fr)
Inventor
Benoit Davidian
Erwan Leguludec
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to FR1850330A priority Critical patent/FR3076743A1/en
Publication of FR3076743A1 publication Critical patent/FR3076743A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28028Particles immobilised within fibres or filaments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B01J20/08Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/103Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16Alumino-silicates
    • B01J20/18Synthetic zeolitic molecular sieves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/2803Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28033Membrane, sheet, cloth, pad, lamellar or mat
    • B01J20/28038Membranes or mats made from fibers or filaments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28033Membrane, sheet, cloth, pad, lamellar or mat
    • B01J20/2804Sheets with a specific shape, e.g. corrugated, folded, pleated, helical

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Separation Of Gases By Adsorption (AREA)

Abstract

Adsorbant structuré comprenant au moins trois toiles : - comprenant des fils comprenant au moins un adsorbant, - présentant des ondulations, et - empilées de sorte que les ondulations traversant une toile sont orientées de 30° à 120° par rapport aux ondulations de la toile adjacente.Structured adsorbent comprising at least three webs: - comprising yarns comprising at least one adsorbent, - having corrugations, and - stacked so that the corrugations passing through a web are oriented from 30 ° to 120 ° with respect to the corrugations of the adjacent web .

Description

La présente invention est relative à un adsorbant structuré tissé pour utilisation dans un procédé PSA ou VSA.The present invention relates to a woven structured adsorbent for use in a PSA or VSA process.

Les procédés de séparation par adsorption modulée en pression reposent sur le phénomène d'adsorption physique et permettent de séparer ou de purifier des gaz par cyclage en pression du gaz à traiter à travers un ou plusieurs lit d'adsorbant, tel un lit de zéolite, de charbon actif, d'alumine activée, de gel de silice, de tamis moléculaire ou analogues. Dans le cadre de la présente invention, on désigne, sauf stipulation autre, par les termes procédé PSA, tout procédé de séparation de gaz par adsorption modulée en pression, mettant en œuvre une variation cyclique de la pression entre une pression haute, dite pression d'adsorption, et une pression basse, dite pression de régénération. Par conséquent, l'appellation générique procédé PSA est employée indifféremment pour désigner les procédés cycliques suivants:The pressure-modulated adsorption separation processes are based on the physical adsorption phenomenon and make it possible to separate or purify gases by pressure cycling of the gas to be treated through one or more beds of adsorbent, such as a zeolite bed, activated carbon, activated alumina, silica gel, molecular sieve or the like. In the context of the present invention, unless otherwise stipulated, the terms PSA process denote any process of separation of gas by pressure-modulated adsorption, implementing a cyclic variation of the pressure between a high pressure, called pressure d adsorption, and a low pressure, called regeneration pressure. Consequently, the generic designation PSA process is used interchangeably to designate the following cyclic processes:

-les procédés VSA dans lesquels l'adsorption s'effectue sensiblement à la pression atmosphérique, dite pression haute , c'est-à-dire entre 1 bara et 1,6 bara, préférentiellement entre 1,1 et 1,5 bara, et la pression de désorption, dite pression basse , est inférieure à la pression atmosphérique, typiquement entre 30 et 800 mbara, de préférence entre 100 et 600 mbara.the VSA processes in which the adsorption takes place substantially at atmospheric pressure, called high pressure, that is to say between 1 bara and 1.6 bara, preferably between 1.1 and 1.5 bara, and the desorption pressure, called low pressure, is lower than atmospheric pressure, typically between 30 and 800 mbara, preferably between 100 and 600 mbara.

- les procédés VPSA ou MPSA dans lesquels l'adsorption s'effectue à une pression haute sensiblement supérieure à la pression atmosphérique, io généralement entre 1,6 et 8 bara, préférentiellement entre 2 et 6 bara, et la pression basse est inférieure à la pression atmosphérique, typiquement entre 30 et 800 mbara, de préférence entre 100 et 600 mbara.- the VPSA or MPSA processes in which the adsorption takes place at a high pressure substantially higher than atmospheric pressure, generally between 1.6 and 8 bara, preferably between 2 and 6 bara, and the low pressure is lower than the atmospheric pressure, typically between 30 and 800 mbara, preferably between 100 and 600 mbara.

- les procédés PSA dans lesquels l'adsorption s'effectue à une pression haute nettement supérieure à la pression atmosphérique, typiquement entre 1,6 et 50 bara, préférentiellement entre 2 et 35 bara, et la pression basse est supérieure ou sensiblement égale à la pression atmosphérique, donc entre 1 et 9 bara, de préférence entre 1,2 et 2,5 bara.- PSA processes in which adsorption takes place at a high pressure significantly higher than atmospheric pressure, typically between 1.6 and 50 bara, preferably between 2 and 35 bara, and the low pressure is greater than or substantially equal to the atmospheric pressure, therefore between 1 and 9 bara, preferably between 1.2 and 2.5 bara.

- les procédés TSA dans lesquels l'adsorption s'effectue à pression super-atmosphérique et à température ambiante et la régénération de l'adsorbant s'effectue à pression atmosphérique et à température habituellement entre 100 et 250°C.- TSA processes in which the adsorption takes place at super-atmospheric pressure and at room temperature and the regeneration of the adsorbent takes place at atmospheric pressure and at a temperature usually between 100 and 250 ° C.

De même, dans le cadre de la présente demande, les pressions indiquées sont des pressions absolues, par exemple des bar absolus (bara).Likewise, in the context of the present application, the pressures indicated are absolute pressures, for example absolute bars (bara).

De manière générale, un procédé PSA permet de séparer une ou plusieurs molécules de gaz d'un mélange gazeux les contenant, en exploitant la différence d'affinité d'un adsorbant donné ou, le cas échéant, de plusieurs adsorbants pour ces différentes molécules de gaz.In general, a PSA process makes it possible to separate one or more gas molecules from a gas mixture containing them, by exploiting the difference in affinity of a given adsorbent or, where appropriate, of several adsorbents for these different molecules of gas.

L'affinité d'un adsorbant pour une molécule gazeuse dépend de la structure et de la composition de l'adsorbant, ainsi que des propriétés de la molécule, notamment sa taille, sa structure électronique et ses moments multipolaires.The affinity of an adsorbent for a gaseous molecule depends on the structure and composition of the adsorbent, as well as on the properties of the molecule, in particular its size, its electronic structure and its multipole moments.

Un adsorbant peut être par exemple une zéolite, un charbon actif, une alumine activée, un gel de silice, un tamis moléculaire carboné ou non, une structure métallo-organique, un ou des oxydes ou des hydroxydes de métaux alcalins ou alcalino-terreux, ou une structure poreuse contenant une substance capable de réagir réversiblement avec une ou plusieurs molécules de gaz, telle que amines, solvants physiques, complexants métalliques, oxydes ou hydroxydes métalliques par exemple L'adsorption est un phénomène exothermique, chaque couple molécule adsorbant étant caractérisé par une enthalpie isostérique d'adsorption ou une enthalpie de réaction en général. Symétriquement, la désorption est endothermique.An adsorbent can be for example a zeolite, an activated carbon, an activated alumina, a silica gel, a molecular sieve, carbon or not, a metallo-organic structure, one or more oxides or hydroxides of alkali or alkaline-earth metals, or a porous structure containing a substance capable of reacting reversibly with one or more gas molecules, such as amines, physical solvents, metal complexing agents, metal oxides or hydroxides for example Adsorption is an exothermic phenomenon, each pair of adsorbent molecules being characterized by an isosteric enthalpy of adsorption or an enthalpy of reaction in general. Symmetrically, the desorption is endothermic.

Les procédés d'adsorption utilisent généralement des adsorbants « vrac » qui se présentent sous la forme de billes ou d'extrudés de quelques millimètres. Ces adsorbants conduisent à une perte de charge importante. Depuis quelques années, des adsorbants dit « structurés » ont fait apparition. Il en existe différents types : monolithes, fibres creuses ou feuilles laminées.The adsorption processes generally use “bulk” adsorbents which are in the form of beads or extrudates of a few millimeters. These adsorbents lead to a significant pressure drop. In recent years, so-called “structured” adsorbents have appeared. There are different types: monoliths, hollow fibers or laminated sheets.

Les adsorbants structurés par opposition aux adsorbants classiques particulaires, sont de géométrie plus complexe, avec des dimensions sensiblement supérieures au centimètre et offrent un passage plus important ou plus aisé au fluide. Par opposition aux adsorbants particulaires (billes, bâtonnets, concassés) de dimension inférieure au cm, qu'on dépose en vrac dans un adsorbeur, le fluide circulant autour des particules, les adsorbants structurés sont des matériaux solides de dimension allant de quelques centimètres à quelques mètres et présentant des passages libres au gaz, comme des monolithes, des mousses ou des tissus. Ce type d'adsorbant est notamment décrit dans le document F. Rezaei, P. Webley / Séparation and Purification Technology 70(2010) 243-256. Les adsorbants structurés présentent (en comparaison des adsorbants granulés) la particularité de permettre une très bonne cinétique et de très faibles pertes de charges sans présenter de limite d'attrition connue. Si ces structures sont aujourd'hui beaucoup plus onéreuses que des adsorbants granulés, leur intérêt économique pour un remplacement complet des lits granulés peut s'avérer décisif s'il s'accompagne d'un gain notable en perte de charge et/ou d'une réduction significative du coût de construction de l'adsorbeur via une diminution du volume d'adsorbant ou une simplification de la construction.Structured adsorbents, as opposed to conventional particulate adsorbents, have a more complex geometry, with dimensions substantially greater than one centimeter and offer a greater or easier passage for the fluid. In contrast to particulate adsorbents (balls, sticks, crushed) of dimension less than cm, which are deposited in bulk in an adsorber, the fluid circulating around the particles, structured adsorbents are solid materials with dimensions ranging from a few centimeters to a few meters and having free gas passages, such as monoliths, foams or fabrics. This type of adsorbent is notably described in the document F. Rezaei, P. Webley / Separation and Purification Technology 70 (2010) 243-256. Structured adsorbents have the distinction (compared to granular adsorbents) of allowing very good kinetics and very low pressure losses without having a known attrition limit. If these structures are today much more expensive than granular adsorbents, their economic interest for a complete replacement of the granulated beds can prove to be decisive if it is accompanied by a significant gain in pressure drop and / or a significant reduction in the cost of construction of the adsorber via a reduction in the volume of adsorbent or a simplification of construction.

Comme expliqué précédemment les adsorbants structurés présentent des avantages non négligeables. Cependant, pour l'instant il n'existe pas d'adsorbant structuré qui présente à la fois une forte densité en adsorbant et une bonne tenue mécanique.As explained above, structured adsorbents have significant advantages. However, for the moment there is no structured adsorbent which has both a high density of adsorbent and good mechanical strength.

Une solution de la présente invention est un adsorbant structuré comprenant au moins trois toiles :A solution of the present invention is a structured adsorbent comprising at least three fabrics:

- comprenant des fils comprenant au moins un adsorbant,- comprising wires comprising at least one adsorbent,

- présentant des ondulations, et- with undulations, and

- empilées de sorte que les ondulations traversant une toile sont orientées de 30° à 120°, préférentiellement de 50° à 100° par rapport aux ondulations de la toile adjacente. On parlera ainsi de structure ondulée-croisée.- stacked so that the undulations passing through a fabric are oriented from 30 ° to 120 °, preferably from 50 ° to 100 ° relative to the undulations of the adjacent fabric. We will thus speak of a wavy-cross structure.

Selon le cas, l'adsorbant selon l'invention présente un ou plusieurs des caractéristiques suivantes :Depending on the case, the adsorbent according to the invention has one or more of the following characteristics:

- les fils comprenant au moins un adsorbant comprennent un fil support sur lequel est déposé au moins un adsorbant.- The wires comprising at least one adsorbent comprise a support wire on which is deposited at least one adsorbent.

- le fil support est métallique.- the support wire is metallic.

- l'adsorbant est choisi parmi l'alumine activée, le charbon actif, le gel de silice et la zéolite.- The adsorbent is chosen from activated alumina, activated carbon, silica gel and zeolite.

- les fils ont un diamètre compris entre 0,05 et 4 mm.- the wires have a diameter between 0.05 and 4 mm.

- les toiles peuvent être de forme carrée, rectangulaire ou triangulaire.- the fabrics can be square, rectangular or triangular.

- les fils comprenant au moins un adsorbant comprennent au moins un liant organique ou inorganique.- The yarns comprising at least one adsorbent comprise at least one organic or inorganic binder.

- les toiles ont des mailles carrées ou rectangulaires.- the fabrics have square or rectangular meshes.

- le diamètre équivalent des mailles est compris entre 0,05 et 6 mm. Par « diamètre équivalent des mailles » on entend 4 fois la section de la maille divisée par le périmètre de la maille, la maille étant délimitée par 2 fils de chaîne et 2 fils de trame.- the equivalent diameter of the meshes is between 0.05 and 6 mm. By “equivalent diameter of the meshes” is meant 4 times the section of the mesh divided by the perimeter of the mesh, the mesh being delimited by 2 warp threads and 2 weft threads.

- les toiles sont constituées de fil d'adsorbant et de fil métallique ou plastique, ce dernier étant utilisé au maintien de la forme ondulée des toiles après leur mise en forme- the fabrics consist of adsorbent wire and of metallic or plastic wire, the latter being used to maintain the corrugated shape of the fabrics after their shaping

- les toiles sont empilées de manière à former des canaux entre les toiles qui constitueront les passages préférentiels du gaz à adsorber.- the fabrics are stacked so as to form channels between the fabrics which will constitute the preferential passages of the gas to be adsorbed.

- l'empilement comprend au moins un moyen d'écartement d'au moins deux toiles.- The stack comprises at least one means of spacing at least two fabrics.

- ledit adsorbant structuré présente une hauteur comprise entre 10 cm et plusieurs mètres, de préférence entre 10 cm et 1 m ;- Said structured adsorbent has a height of between 10 cm and several meters, preferably between 10 cm and 1 m;

- ledit adsorbant structuré est cerclé.- Said structured adsorbent is circled.

La présente invention propose des adsorbants structurés comprenant des toiles ondulées et croisées à la manière des garnissages de distillation.The present invention provides structured adsorbents comprising corrugated and crossed fabrics in the manner of distillation linings.

Ces toiles peuvent avoir des mailles de différentes formes : carrées, rectangulaires ou triangulaires.These fabrics can have meshes of different shapes: square, rectangular or triangular.

Les fils constituant les toiles contiennent de l'adsorbant. Soit un fil support sur lequel de l'adsorbant est déposé, est utilisé ; soit le fil est directement fabriqué à partir d'adsorbant. Le fil support peut être métallique.The threads constituting the fabrics contain adsorbent. Either a support wire on which adsorbent is deposited, is used; either the yarn is directly made from adsorbent. The support wire can be metallic.

Si le fil est directement fabriqué à partir d'adsorbant, alors il est possible d'ajouter un liant organique ou inorganique pour assurer la tenue mécanique du fil.If the wire is directly made from adsorbent, then it is possible to add an organic or inorganic binder to ensure the mechanical strength of the wire.

La toile peut être tissée ou tricotée.The canvas can be woven or knitted.

L'adsorbant peut être choisi parmi les suivants : alumine activée, charbon actif, gel de silice et zéolite. Pour les zéolites, la zéolite est choisie entre une zéolite de type faujasite (X, Y, LSX), une zéolite A, la mordenite, une zéolite MFI et une silicalite.The adsorbent can be chosen from the following: activated alumina, activated carbon, silica gel and zeolite. For zeolites, the zeolite is chosen from a faujasite (X, Y, LSX) type zeolite, a zeolite A, mordenite, an MFI zeolite and a silicalite.

Alternativement, la toile est tissée sans avoir de réelle ouverture de maille par laquelle le gaz peut circuler : la circulation se fait exclusivement à travers les canaux obtenus par l'empilement croisées des toiles ondulées (Figure 1).Alternatively, the fabric is woven without having a real mesh opening through which the gas can circulate: the circulation takes place exclusively through the channels obtained by the cross stacking of the corrugated fabrics (Figure 1).

Dans une variante de l'invention, des cales sont intercalées entre les toiles d'adsorbant.In a variant of the invention, spacers are interposed between the adsorbent fabrics.

Dans une variante de l'invention, des toiles renforcées sont intercalées de manière régulière.In a variant of the invention, reinforced fabrics are inserted regularly.

Les toiles ondulées-croisées permettent de faire des adsorbants structurés qui ont une hauteur comprise entre 10 cm et plusieurs mètres, de préférence entre 10 cm et 1 m. Les toiles ondulées-croisées peuvent être cerclées afin de les faire tenir ensemble.The wavy-crossed fabrics make it possible to make structured adsorbents which have a height of between 10 cm and several meters, preferably between 10 cm and 1 m. The wavy-crossed fabrics can be hooped in order to make them hold together.

L'adsorbant structuré peut également avoir en périphérie des moyens pour assurer l'étanchéité entre l'adsorbant structuré ainsi réalisé et l'adsorbeur, évitant ainsi le passage du gaz le long de la paroi interne de l'adsorbeur, préjudiciable à la performance de l'adsorption.The structured adsorbent may also have means at the periphery for ensuring the seal between the structured adsorbent thus produced and the adsorber, thus preventing the passage of gas along the internal wall of the adsorber, detrimental to the performance of adsorption.

La section de ces adsorbants structurés peut être de forme circulaire, carrée ou 5 rectangulaire.The section of these structured adsorbents can be circular, square or rectangular.

Le taux de vide de ces adsorbants structurés peut être compris entre 25 et 80%.The vacuum rate of these structured adsorbents can be between 25 and 80%.

La présente invention a également pour objet un adsorbeur comprenant dans le sens de circulation du flux gazeux à adsorber un assemblage d'au moins un premier et un deuxième adsorbants structurés selon l'invention, caractérisé en ce que les toiles du premier adsorbant 10 structuré et les toiles du second adsorbant structuré sont sensiblement perpendiculaires.The present invention also relates to an adsorber comprising, in the direction of circulation of the gas flow to be adsorbed, an assembly of at least first and second structured adsorbents according to the invention, characterized in that the webs of the first structured adsorbent 10 and the fabrics of the second structured adsorbent are substantially perpendicular.

Claims (15)

Revendicationsclaims 1. Adsorbant structuré comprenant au moins trois toiles :1. Structured adsorbent comprising at least three fabrics: - comprenant des fils comprenant au moins un adsorbant,- comprising wires comprising at least one adsorbent, - présentant des ondulations, et- with undulations, and - empilées de sorte que les ondulations traversant une toile sont orientées de 30° à 120° par rapport aux ondulations de la toile adjacente.- stacked so that the undulations passing through a fabric are oriented from 30 ° to 120 ° relative to the undulations of the adjacent fabric. 2. Adsorbant structuré selon la revendication 1, caractérisé en ce que les fils comprenant au moins un adsorbant comprennent un fil support sur lequel est déposé au moins un adsorbant.2. Structured adsorbent according to claim 1, characterized in that the wires comprising at least one adsorbent comprise a support wire on which is deposited at least one adsorbent. 3. Adsorbant structuré selon la revendication 2, caractérisé en ce que le fil support est métallique.3. Structured adsorbent according to claim 2, characterized in that the support wire is metallic. 4. Adsorbant structuré selon l'une des revendications 1 à 3, caractérisé en ce que l'adsorbant est choisi parmi l'alumine activée, le charbon actif, le gel de silice et la zéolite.4. Structured adsorbent according to one of claims 1 to 3, characterized in that the adsorbent is chosen from activated alumina, activated carbon, silica gel and zeolite. 5. Adsorbant structuré selon l'une des revendications 1 à 4, caractérisé en ce que les fils ont un diamètre compris entre 0,05 et 4 mm.5. Structured adsorbent according to one of claims 1 to 4, characterized in that the wires have a diameter between 0.05 and 4 mm. 6. Adsorbant structuré selon l'une des revendications 1 à 5, caractérisé en ce que les toiles peuvent être de forme carrée, rectangulaire ou triangulaire.6. Structured adsorbent according to one of claims 1 to 5, characterized in that the fabrics can be of square, rectangular or triangular shape. 7. Adsorbant structuré selon l'une des revendications 1 à 6, caractérisé en ce que les fils comprenant au moins un adsorbant comprennent au moins un liant organique ou inorganique.7. Structured adsorbent according to one of claims 1 to 6, characterized in that the yarns comprising at least one adsorbent comprise at least one organic or inorganic binder. 8. Adsorbant structuré selon l'une des revendications 1 à 7, caractérisé en ce que les toiles ont des mailles carrées ou rectangulaires.8. Structured adsorbent according to one of claims 1 to 7, characterized in that the fabrics have square or rectangular meshes. 9. Adsorbant structuré selon la revendication 8, caractérisé en ce que le diamètre équivalent des mailles est compris entre 0,05 et 6 mm.9. Structured adsorbent according to claim 8, characterized in that the equivalent diameter of the meshes is between 0.05 and 6 mm. 10 Adsorbant structuré selon l'une des revendications 1 à 9, caractérisé en ce que les toiles sont constituées de fil d'adsorbant et de fil métallique ou plastique.10 structured adsorbent according to one of claims 1 to 9, characterized in that the fabrics consist of adsorbent wire and metallic or plastic wire. 11. Adsorbant structuré selon l'une des revendications 1 à 10, caractérisé en ce que les toiles sont empilées de manière à former des canaux entre les toiles qui constitueront les passages préférentiels du gaz à adsorber.11. structured adsorbent according to one of claims 1 to 10, characterized in that the fabrics are stacked so as to form channels between the fabrics which will constitute the preferential passages of the gas to be adsorbed. 12. Adsorbant structuré selon l'une des revendications 1 à 11, caractérisé en ce que l'empilement comprend au moins un moyen d'écartement d'au moins deux toiles.12. Structured adsorbent according to one of claims 1 to 11, characterized in that the stack comprises at least one means of spacing at least two fabrics. 13. Adsorbant structuré selon l'une des revendication 1 à 12, caractérisé en ce que ledit adsorbant structuré présente une hauteur comprise entre 10 cm et plusieurs mètres, de préférence entre 10 cm et 1 m.13. structured adsorbent according to one of claims 1 to 12, characterized in that said structured adsorbent has a height of between 10 cm and several meters, preferably between 10 cm and 1 m. 14. Adsorbant structuré selon l'une des revendications 1 à 13, caractérisé en ce que ledit adsorbant structuré est cerclé.14. structured adsorbent according to one of claims 1 to 13, characterized in that said structured adsorbent is circled. 15. Adsorbeur comprenant dans le sens de circulation du flux gazeux à adsorber un assemblage d'au moins un premier et un deuxième adsorbants structurés selon l'une des revendications 1 à 14, caractérisé en ce que les toiles du premier adsorbant structuré et les toiles du second adsorbant structuré sont sensiblement perpendiculaires.15. Adsorber comprising, in the direction of circulation of the gas flow to be adsorbed, an assembly of at least first and second structured adsorbents according to one of claims 1 to 14, characterized in that the fabrics of the first structured adsorbent and the fabrics of the second structured adsorbent are substantially perpendicular.
FR1850330A 2018-01-16 2018-01-16 ADSORBENT WITH WAVE-CROSS STRUCTURE Withdrawn FR3076743A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1850330A FR3076743A1 (en) 2018-01-16 2018-01-16 ADSORBENT WITH WAVE-CROSS STRUCTURE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1850330A FR3076743A1 (en) 2018-01-16 2018-01-16 ADSORBENT WITH WAVE-CROSS STRUCTURE

Publications (1)

Publication Number Publication Date
FR3076743A1 true FR3076743A1 (en) 2019-07-19

Family

ID=61656002

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1850330A Withdrawn FR3076743A1 (en) 2018-01-16 2018-01-16 ADSORBENT WITH WAVE-CROSS STRUCTURE

Country Status (1)

Country Link
FR (1) FR3076743A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4003572A4 (en) * 2019-07-22 2023-08-23 Calgon Carbon Corporation Textured sorbent sheets, assemblies containing them, and molds for making same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773334A (en) * 1980-10-22 1982-05-08 Toyobo Co Ltd Space cooling system utilizing hydrophilic fiber
EP0289755A1 (en) * 1987-05-04 1988-11-09 GebràœDer Sulzer Aktiengesellschaft Absorption column for the chromatographic separation of mixtures of substances
US6273938B1 (en) * 1999-08-13 2001-08-14 3M Innovative Properties Company Channel flow filter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773334A (en) * 1980-10-22 1982-05-08 Toyobo Co Ltd Space cooling system utilizing hydrophilic fiber
EP0289755A1 (en) * 1987-05-04 1988-11-09 GebràœDer Sulzer Aktiengesellschaft Absorption column for the chromatographic separation of mixtures of substances
US6273938B1 (en) * 1999-08-13 2001-08-14 3M Innovative Properties Company Channel flow filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4003572A4 (en) * 2019-07-22 2023-08-23 Calgon Carbon Corporation Textured sorbent sheets, assemblies containing them, and molds for making same

Similar Documents

Publication Publication Date Title
EP1464392B1 (en) Multilayered adsorbent system for gas separations by pressure swing adsorption
JP6035553B2 (en) Method and related apparatus and system for removing contaminants from hydrocarbon streams by swing adsorption
US7189280B2 (en) Adsorptive separation of gas streams
US7947120B2 (en) Temperature swing adsorption of CO2 from flue gas using a parallel channel contractor
US6565627B1 (en) Self-supported structured adsorbent for gas separation
US20120227583A1 (en) Method for purifying a gas flow implementing a contactor having parallel passages while maintaining the performance thereof
FR2938451B1 (en) SERIAL MONOLIT RADIAL ADSORBERS
US9308486B2 (en) Method of using a structured adsorbent bed for capture of CO2 from low pressure and low pressure concentration sources
CA2592224A1 (en) Engineered adsorbent structures for kinetic separation
US20220193598A1 (en) Adsorber structure for gas separation processes
US20150139862A1 (en) Structured adsorbent bed for capture of co2 from low pressure and low concentration sources
CN114222619A (en) Method for producing a high-packing composite adsorbent bed, adsorber comprising a bed and adsorption-based gas separation using an adsorber
WO2015102765A2 (en) A method of manufacturing a structured adsorbent bed for capture of co2 from low pressure and low concentration sources
TW201138932A (en) Adsorbent bed support
FR3076743A1 (en) ADSORBENT WITH WAVE-CROSS STRUCTURE
FR2986440A1 (en) ADSORBER CONSISTS OF MULTIPLE PARALLEL PASSAGE CONTACTORS
FR2989284A1 (en) RADIAL ADSORBER COMPRISING A BED OF ADSORBENT STRUCTURE
FR3076741A1 (en) ADSORBENT HAVING A WEFT STRUCTURE COMPRISING A PLANAR WEAVING STACK
US20230234025A1 (en) Blended sorbents for gas separation using moisture swing regeneration
US9339754B2 (en) Adsorber including parallel-passage contactors having built-in insulation
US9757679B2 (en) Assembly of structured adsorbent modules
FR3076742A1 (en) ADSORBENT WOVEN OR KNITTED
US20220280895A1 (en) Radial adsorber with radial circulation of gas

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20190719

ST Notification of lapse

Effective date: 20200910