EP3790656A1 - Procédé pour la fabrication de corps composites poreux comprenant une structure de support thermoconductrice - Google Patents

Procédé pour la fabrication de corps composites poreux comprenant une structure de support thermoconductrice

Info

Publication number
EP3790656A1
EP3790656A1 EP19724376.9A EP19724376A EP3790656A1 EP 3790656 A1 EP3790656 A1 EP 3790656A1 EP 19724376 A EP19724376 A EP 19724376A EP 3790656 A1 EP3790656 A1 EP 3790656A1
Authority
EP
European Patent Office
Prior art keywords
thermally conductive
coating
conductive material
functional material
porous
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.)
Pending
Application number
EP19724376.9A
Other languages
German (de)
English (en)
Inventor
Joachim Baumeister
Jörg Weise
Olga YEZERSKA
Sebastian-Johannes Ernst
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP3790656A1 publication Critical patent/EP3790656A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid 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
    • B01J20/28026—Particles within, immobilised, dispersed, entrapped in or on a matrix, e.g. a resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16—Alumino-silicates
    • B01J20/18—Synthetic zeolitic molecular sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid 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
    • B01J20/28042—Shaped bodies; Monolithic structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3042—Use of binding agents; addition of materials ameliorating the mechanical properties of the produced sorbent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/305—Addition of material, later completely removed, e.g. as result of heat treatment, leaching or washing, e.g. for forming pores
    • B01J20/3057—Use of a templating or imprinting material ; filling pores of a substrate or matrix followed by the removal of the substrate or matrix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
    • B01J20/3204—Inorganic carriers, supports or substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3234—Inorganic material layers
    • B01J20/3236—Inorganic material layers containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3291—Characterised by the shape of the carrier, the coating or the obtained coated product
    • B01J20/3293—Coatings on a core, the core being particle or fiber shaped, e.g. encapsulated particles, coated fibers

Definitions

  • the present invention relates to a process for the preparation of porous composite bodies, which have a support structure of a thermally conductive material and at least one functional material, in particular for the production of sorbent bodies or
  • the invention also relates to porous composite bodies which can be produced by the method.
  • porous composite bodies are required which have a good heat-conducting carrier structure and suitable adsorbent materials as functional material.
  • the support structure must have, among other things, good thermal coupling conditions, good internal heat transport and a
  • the support structure should have mechanical stability. Furthermore, the support structure should have a large surface area for the heat transfer processes and the fixation of the functional material, the lowest possible weight, a small installation space and a low thermal mass.
  • DE 101 59 652 A1 describes a method for producing a porous composite body in which a Foam-like matrix of a metal foam
  • the thermal contact between the functional material and the thermally conductive support structure is not optimal.
  • Adsorption heat pump in which the adsorbent as
  • the composite body consists of a thermally conductive carrier, on the surface of microstructures
  • a composite material of a porous polymer matrix, in which zeolite particles are embedded as functional material, as well as a metallic material is known.
  • the metallic material can be embedded, for example, in the form of a perforated metal plate or a metal grid or in particle form.
  • the object of the present invention is to provide a process for the production of porous
  • porous composite bodies which is a support structure made of a preferably good thermal conductivity material, in particular a metallic material, and
  • moldings have at least one functional material, a plurality of moldings is provided from the functional material. These moldings are preferably granules or tubes or rods of the functional material. These moldings are then coated with the highly thermally conductive material and it is made a firm connection between the coated moldings to the
  • the proposed method thus does not involve a carrier structure which is highly thermally conductive Functional materials coated. Rather, shaped bodies made of the functional material are coated with the good heat-conductive material. The (porous) layer of the thermally conductive material is thus between the functional material and the surrounding
  • the atmosphere e.g. Water vapor transport
  • the proposed method allows the setting of very large contact surfaces between the thermally conductive material and the functional material.
  • the proposed approach also allows extended design freedoms for the forest.
  • thermally conductive materials for example, metals, carbon, carbides or thermally conductive polymers
  • the thermally conductive materials preferably have a thermal conductivity (at 0 °) of at least 100 W / (m-K).
  • the solid compound of the coated molded body takes place by a sintering process. Does not the coating of the good thermal conductivity material before the sintering process yet
  • this porous structure can be achieved by the sintering process. If the porous structure already exists, then the remains
  • Porosity of the coating obtained by the sintering process at least partially.
  • the coating can be carried out in such a way that the required open-porous structures already form on the surface of the functional material shaped bodies by the coating process.
  • this layer must be subsequently structured or opened in order to make the functional material accessible.
  • the opening can be by heat treatment, for example, by the preferably performed sintering process, by removing incorporated in the layer Platzhalter, mechanically or chemically, for example, by etching done.
  • the coating of the molded body with the good heat conductive material can be done for example by a deposition process. So can one
  • Molded bodies made of functional material by means of PVD (PVD: Physical Vapor Deposition) or by electrochemical or galvanic deposition, which, if necessary, then a sintering process can be Runaway leads.
  • PVD Physical Vapor Deposition
  • galvanic deposition can also be carried out in such a way that the deposition process already creates a porous but stable network of the metallic material.
  • thermally conductive material mixed to coat the shaped body via the binder with the particles or fibers of good thermal conductivity material.
  • the particles or fibers of the highly thermally conductive material have dimensions that are smaller than the smallest dimensions of the shaped bodies in one, two or all three dimensions by a factor of 10. In such a coating process by mixing the components involved is
  • the layer thickness of the thermally conductive material on the moldings of the functional or active material can assume very different values for typical sizes of the active material granules (50 microns-3mm), which may for example be between 1 and 200 mih.
  • zeolite in the form of granules and be used as a thermally conductive material copper (Cu).
  • Cu thermally conductive material
  • the examples can also be carried out in this form with other functional materials and / or other thermally conductive materials.
  • a sufficiently porous Cu layer can be produced on the zeolite granules.
  • This porous structure becomes one during subsequent sintering of the coated granules
  • Pipes or other heat transfer body can be sintered by the sintering process with equal or afterwards, for example by means of soldering, connected to the composite body. This also applies to the other examples.
  • largely closed Cu layers are deposited on the zeolite granules by means of PVD. During the subsequent sintering together of the coated granules, the layers form around and form a kind of porous network.
  • Powder layer at least partially, so that also in this way the porous composite body can be obtained.
  • the proposed porous shaped body which can be produced by the method, has a corresponding Variety of coated with the good thermal conductivity material moldings of the functional material, which are firmly connected to each other via the good heat conductive material.
  • the coating has a porous structure passing through the coating
  • gaseous medium to the functional material allows.
  • Heat dissipation of functional materials is required. Examples are sorption heat pumps or else
  • Fig. 1 is a schematic representation of according to the proposed method
  • Fig. 2 is a representation of the zeolite content of the overall structure as a function of the diameter of a spherical
  • FIG. 3 is a further representation of the zeolite proportion of the total structure in FIG.
  • Fig. 4 is a photograph of the structure of a with
  • Fig. 5 a representation of one with copper
  • Fig. 6 is a representation of a copper-coated tubular shaped body made of zeolite.
  • a highly thermally conductive thin layer for example made of copper, on the surface of moldings of a
  • a porous structure of this layer is generated.
  • the coated moldings are then bonded together to form an overall structure that forms the porous composite body. This can be done for example by sintering. Also a connection via a possibly during the coating used binder can be used. Preference, the whole structure is subsequently or simultaneously with the connection process with peripheral elements, such as pipes, housings, etc.
  • FIG. 1 shows a highly schematic four
  • the thin Cu layer has a sufficiently porous structure (not visible in the figure) to allow access of liquid or gaseous media to the zeolite.
  • Figure 1 shows with the four moldings only a very small section of the forest in
  • Granule diameter between 50 and 250 mih at
  • Volume fractions of the zeolite are each preferably in the range between 0.5 and 0.75. Volume fractions of the zeolite of about 70 vol.% Are particularly advantageous.
  • Y zeolite granules are stirred with a 63-125 mg fraction with water and an organic binder (e.g., ExOne®). Then Cu-UFIO powder ( ⁇ 10mih) is added. The mass is stirred, placed in a mold, for example a cylindrical mold, and
  • FIG. 4 shows by way of example a photograph of a structure of FIG.
  • Granules carried out (granule diameter about 2 to 3 mm), so there are coarser structures, the porous copper layer on the zeolite particles also after the sintering is still porous and in addition
  • the fabric serves both to mechanically stabilize the overall structure and as a directional, heat-conducting structure (strong
  • Such coated textiles can be very well connected with cooling tubes.
  • the coated fabric may be bonded to a copper flat tube during sintering. The fabric is aligned with the flat tube and accordingly dissipates the heat there well.
  • Y zeolite granules fraction 63-125 mih
  • silicone-based binder eg P80X
  • Cu-UFIO powder is added.
  • the mass is stirred again and then dried.
  • an oxidation treatment is carried out at 420 ° C for 1 hour in air and sintering at 600 ° C for 2 hours in a hydrogen atmosphere.
  • the temperature-resistant binder even after sintering still has a good strength, which is based
  • coated granules can later be filled in
  • Hollow structures are filled.
  • Envelope structure Another way of producing the porous composite utilizes material rearrangements in sintering processes. It is known that by means of fluidized bed PVD method homogeneous copper layers on
  • ceramic granules such as cenospheres (aluminum silicates) can be deposited. With the help of such layers, the granules can be sintered together to form solid structures.
  • cenospheres aluminum silicates
  • FIG. 5 shows an example of a spherical shaped body of zeolite coated with copper particles
  • FIG. 6 shows an example of

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Powder Metallurgy (AREA)
  • Dispersion Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Catalysts (AREA)

Abstract

Procédé pour la fabrication de corps composites poreux, qui comprennent une structure de support en un matériau de bonne conductivité thermique et au moins un matériau fonctionnel, dans lequel une pluralité de corps moulés (1) composés du matériau fonctionnel sont recouverts du matériau de bonne conductivité thermique et une connexion fixe est réalisée entre les corps moulés (1) recouverts, afin de former la structure de support en matériau de bonne conductivité thermique. Le revêtement (2) est réalisée avec une structure poreuse ou muni d'une structure poreuse, qui permet, après la réalisation de la connexion fixe, un accès au matériau fonctionnel à travers le revêtement pour un milieu liquide ou gazeux. Le procédé permet de produire à un coût raisonnable des corps composites poreux avec de très bonnes propriétés de transfert thermique.
EP19724376.9A 2018-05-08 2019-05-07 Procédé pour la fabrication de corps composites poreux comprenant une structure de support thermoconductrice Pending EP3790656A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018207143.8A DE102018207143A1 (de) 2018-05-08 2018-05-08 Verfahren zur Herstellung von porösen Verbundkörpern mit wärmeleitfähiger Trägerstruktur
PCT/EP2019/061696 WO2019215163A1 (fr) 2018-05-08 2019-05-07 Procédé pour la fabrication de corps composites poreux comprenant une structure de support thermoconductrice

Publications (1)

Publication Number Publication Date
EP3790656A1 true EP3790656A1 (fr) 2021-03-17

Family

ID=66554340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19724376.9A Pending EP3790656A1 (fr) 2018-05-08 2019-05-07 Procédé pour la fabrication de corps composites poreux comprenant une structure de support thermoconductrice

Country Status (4)

Country Link
US (1) US20210363024A1 (fr)
EP (1) EP3790656A1 (fr)
DE (1) DE102018207143A1 (fr)
WO (1) WO2019215163A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19730697A1 (de) 1997-07-17 1999-01-21 Buderus Heiztechnik Gmbh Adsorptionswärmepumpe
DE10159652C2 (de) 2000-12-05 2003-07-24 Sortech Ag Verfahren zur Wärmeübertragung sowie Wärmeübertrager hierfür
GB0307332D0 (en) * 2003-03-29 2003-05-07 Carbon Technologies Nv Shaped porous materials
US20050032640A1 (en) * 2003-08-07 2005-02-10 He Huang Method and structure for desulfurizing gasoline or diesel fuel for use in a fuel cell power plant
DE102005001056B4 (de) 2005-01-07 2007-03-29 Sortech Ag Sorptionsspeicherelement und Verfahren zur dessen Herstellung
DE102006048445B4 (de) * 2006-10-11 2016-09-08 Udo Hellwig Einrichtung zur Bereitstellung von Wärme, Verfahren zu deren Herstellung und Verfahren zur Übertragung von Wärme
DE102008023481B4 (de) * 2008-05-14 2013-10-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wärmeleitfähige Komposit-Adsorbentien sowie Verfahren zu deren Herstellung und deren Verwendung
EP2532421A1 (fr) * 2011-06-10 2012-12-12 Süd-Chemie AG Matériau composite en polymère contenant du fluor, particules de zéolithe hydrophobes et matière première métallique

Also Published As

Publication number Publication date
DE102018207143A1 (de) 2019-11-14
US20210363024A1 (en) 2021-11-25
WO2019215163A1 (fr) 2019-11-14

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