EP1877167A1 - Membran für gasphasenseparation sowie dafür geeignetes herstellungsverfahren - Google Patents
Membran für gasphasenseparation sowie dafür geeignetes herstellungsverfahrenInfo
- Publication number
- EP1877167A1 EP1877167A1 EP06722743A EP06722743A EP1877167A1 EP 1877167 A1 EP1877167 A1 EP 1877167A1 EP 06722743 A EP06722743 A EP 06722743A EP 06722743 A EP06722743 A EP 06722743A EP 1877167 A1 EP1877167 A1 EP 1877167A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sub
- zeolite
- layer
- microporous membrane
- porous substrate
- 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- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000005191 phase separation Methods 0.000 title abstract description 8
- 239000012528 membrane Substances 0.000 title description 38
- 239000010457 zeolite Substances 0.000 claims abstract description 60
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 58
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 49
- 239000011148 porous material Substances 0.000 claims abstract description 41
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 13
- 239000012982 microporous membrane Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 150000003377 silicon compounds Chemical class 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims 1
- 239000003570 air Substances 0.000 claims 1
- 229910052786 argon Inorganic materials 0.000 claims 1
- 239000003093 cationic surfactant Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 229910052733 gallium Inorganic materials 0.000 claims 1
- 229910052732 germanium Inorganic materials 0.000 claims 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims 1
- 239000001307 helium Substances 0.000 claims 1
- 229910052734 helium Inorganic materials 0.000 claims 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 description 30
- 239000007789 gas Substances 0.000 description 26
- 239000000243 solution Substances 0.000 description 11
- 239000013078 crystal Substances 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- -1 B 2 O 3 Inorganic materials 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000002243 precursor Substances 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 3
- 238000003618 dip coating Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000012010 growth Effects 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 239000000908 ammonium hydroxide Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 238000001027 hydrothermal synthesis Methods 0.000 description 2
- 238000010335 hydrothermal treatment Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 238000004528 spin coating Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 description 1
- 229910005793 GeO 2 Inorganic materials 0.000 description 1
- GEIAQOFPUVMAGM-UHFFFAOYSA-N ZrO Inorganic materials [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- NDKBVBUGCNGSJJ-UHFFFAOYSA-M benzyltrimethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)CC1=CC=CC=C1 NDKBVBUGCNGSJJ-UHFFFAOYSA-M 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005262 decarbonization Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012013 faujasite Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910021331 inorganic silicon compound Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052680 mordenite Inorganic materials 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 229910052605 nesosilicate Inorganic materials 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000034655 secondary growth Effects 0.000 description 1
- 230000035040 seed growth Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000012690 zeolite precursor Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/028—Molecular sieves
- B01D71/0281—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0039—Inorganic membrane manufacture
- B01D67/0051—Inorganic membrane manufacture by controlled crystallisation, e,.g. hydrothermal growth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0083—Thermal after-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/10—Supported membranes; Membrane supports
- B01D69/108—Inorganic support material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/24—Use of template or surface directing agents [SDA]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/02—Details relating to pores or porosity of the membranes
- B01D2325/0283—Pore size
- B01D2325/02831—Pore size less than 1 nm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/04—Characteristic thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/22—Thermal or heat-resistance properties
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Definitions
- the invention relates to a membrane for gas phase separation and to a process for producing such a membrane.
- the fossil fuel before the actual combustion of the carbon is removed by the fuel is converted by a partial oxidation or reforming in CO 2 and hydrogen gas (separation task: CO 2 / H 2 ), combustion of hydrogen.
- the CO 2 can be washed out by physical or chemical washing solutions.
- the separation of the CO 2 from the gas mixture is easier than described under point a), as there are also significantly higher concentrations and pressures for the CO 2 .
- a potentially suitable method with significantly lower efficiency losses is gas separation via ceramic microporous membranes.
- Ceramic membranes have high chemical and thermal stability and can be used in all three power plant routes.
- existing microporous membranes do not yet reach the required pore size diameter for gas separation, have insufficient permeation or separation rates or are not stable under process conditions.
- the permeation rate represents the volume flow per unit time of the permeating component relative to the membrane surface and the applied partial pressure difference across the membrane [m 3 / m 2 hbar].
- the selectivity is described by the so-called separation factor, which is given by the ratio of the permeation rate of the gases to be separated. In order to achieve better values here, a targeted adjustment of the microstructure in the nanometer range is desirable.
- Zeolite membranes are crystalline microporous, inorganic membranes.
- the driving forces for a separation are the affinity of the permeating molecules for the zeolite material on the one hand and the difference between the molecular sizes and the pore diameters of the membrane on the other hand.
- the best studied membranes belong to the MFI type, although mordenite or zeolites A and Y have also been studied.
- the zeolites of the faujasite type (Y, X and K) are also described in the literature as being suitable in principle for gas phase separation.
- microporous separation membranes In the case of the microporous separation membranes, a distinction is made between crystalline zeolitic membranes from the SiO 2 -AbO 3 system and amorphous from the systems SiO 2 -Al 2 O 3 , TiO 2 , ZrO 2 . In the crystalline membranes, especially defects in the layers (intergranular pores, defects) or too large pore diameters are the reason for an insufficient separation rate.
- zeolites are synthesized hydrothermally.
- SDA structure directing agent
- zeolites crystallize at about 100-200 0 C under autogenous pressure from aqueous solutions.
- Particularly suitable as SDA are quaternary ammonium salts, which are decomposed and liberated in the course of calcination and thus make the pore space accessible.
- the mechanism of crystallization has been the subject of controversy for many years, in particular on the role of precursors, which should form in homogeneous solution in the interaction of silica with SDA.
- the targeted introduction of seed crystals onto a substrate can influence the growth of germs.
- the mechanical rubbing of the seed crystals with the aid of cationic polymers into the surface is known.
- crystals are applied as alcoholic dispersion or via sols, including silicon compounds, water, a base, structuring agent and an aluminum salt, directly onto the substrate.
- the particle size of the sols is usually in the range between 50 nm and 200 nm.
- the use of such sols is referred to as secondary grain growth.
- the substrate is then with a zeolite layer coated (eg by dip coating) and then treated hydrothermally. This results in a layer thickness of about 200 nm. This secondary growth process of zeolite granules allows targeted control of the microstructure by decoupling of nucleation and seed growth.
- the object of the invention is to provide a separation device for a gas phase separation with porosities in the range of 0.2-0.45 nm, by means of which it is possible, in particular N 2 / O 2 -, N 2 / CO 2 - H 2 / CO 2 - or CO 2 / CH 4 - to separate gas mixtures. Insbesondre this separator should be integrated directly into thermal processes and therefore be particularly temperature stable. Furthermore, it is the object to provide a method for producing such a device.
- a separating device suitable for gas phase separation can be obtained by a defect-free ceramic membrane made of zeolite structures, in which a nanostructured microstructure with porosities in the range of 0.2 through targeted modification of the starting reagents and the production parameters and subsequent aftertreatment - 0.45 nm can be adjusted.
- the invention relates to a process for the preparation of crystalline microporous nanoscale ceramic layer systems and to a producible therewith Separating device in particular for use as a gas separation membrane in fossil power plants.
- the membrane according to the invention comprises a nanocrystalline zeolite layer having an average pore diameter of 0.2 to 0.45 nm, which is arranged on a porous substrate.
- Suitable zeolite structures are, in addition to zeolite frameworks with 4-ring pores, also those with 6 and / or 6 Ring pores, which usually have the required small pore sizes in the range of 0.2 to 0.45 nm.
- the suitable zeolites for this application are usually pure silicon zeolites. In the context of the invention, however, those are also included which additionally contain small amounts of Al 2 O 3 , TiO 2 , Ti 2 O 5 , Fe 2 O 3 , GeO 2 , B 2 O 3 , Ga 2 O 3 or other metals can have. However, the amounts are so small that they have no influence on the mode of action of the zeolite layer.
- Suitable zeolite framework structures are, for example, DDR, DOH, LTA, SGT, MTN and SOD and mixtures of these structures.
- the zeolite layer thus has significantly smaller pore sizes than known MFI zeolites having a pore size greater than 0.55 nm.
- the structure in particular the accuracy of the crystalline zeolite layer, is crucial for use as a gas separation membrane. Only with a layer with few defects can an optimum between permeation and selectivity be achieved even with a small layer thickness.
- the membrane according to the invention has at least one crystalline zeolite layer with a layer thickness of 50 nm up to 2 ⁇ m.
- the nano-crystalline zeolite layer of the membrane according to the invention is arranged on a porous substrate which regularly has a mean pore diameter of 2 nm to 2 ⁇ m and comprises, for example, steel, aluminum, titanium, silicon, zirconium, aluminosilicates or else cerium and mixtures thereof ,
- a colloidal starting solution and its metastable complexes which comprise zeolites in the form of nanocrystals as membrane precursors (precursors).
- These zeolite precursors are applied to a mesoporous substrate by a wet separation method such as spin coating, dip coating, wet powder spraying and screen printing.
- the layer is transferred to a crystalline microporous zeolite layer with pore sizes between 0.2 to 0.5 nm.
- Suitable silicon compounds are organic silicon compounds, such as, for example, tetraethyl orthosilicate (TEOS) or else tetra-methyl orthosilicates (TMOS) or else inorganic silicon compounds, such as silicon dioxide, a silicon gel or colloidal silicon.
- TEOS tetraethyl orthosilicate
- TMOS tetra-methyl orthosilicates
- inorganic silicon compounds such as silicon dioxide, a silicon gel or colloidal silicon.
- SDA structure-directing-agent
- SDA structure-directing-agent
- the colloidal solution may also contain alcohols.
- the colloidal solution advantageously has zeolite crystallites with a size between 2 and 25 nm, in particular between 2 and 15 nm.
- the colloidal solution is applied to the porous substrate using typical wet application techniques such as spin coating, dip coating, screen printing or spraying techniques.
- a dense application produces crystalline particles with a size between 2 and 20 nm.
- the actual synthesis of the crystalline zeolite layer is hydrothermally at temperatures between 50 and 250 0 C and autogenous pressure.
- the pH is adjusted above 9.
- the pH may be lower than 9 (eg, 7) when fluoride anions are present in the hydrothermal solution.
- the composition of the hydrothermal solution must have at least water, but optionally it may also contain a base, F " ions, SDA or silicon compounds, and after a few hours the formation of the crystalline zeolite layer takes place.
- the method according to the invention has the following advantages in particular:
- nano-crystalline colloids enables the production of a virtually defect-free membrane, which has only a very small number of cracks or holes in the microporous layer.
- the zeolite coating can be used directly as a separation membrane or can be produced by recrystallization and regrowth during a hydro-thermal treatment.
- the kinetic diameters of the gases to be separated generally define the pore size of the zeolite framework types which are particularly suited to the separation problem.
- 10-ring pores with a width of approx. 0.55 nm provide even better diffusion properties for mass transfer but at the expense of the molecular sieve effect.
- Suitable zeolite frameworks, which have pore openings of about 0.2 to 0.5 nm and therefore should in principle have the required selectivity, are therefore to be found in particular in the case of the 4-, 6- or even 8-ring zeolite structures.
- pore crosslinking In addition to the pore diameter, however, pore crosslinking also plays an important role. In zeolite scaffold types with a three-dimensionally crosslinked pore o system, the orientation of the crystallites on the substrate interface plays only a minor role. In contrast, lower-dimensional pore systems require an oriented deposition of the zeolite frameworks in order to achieve an optimum separation effect and optimum transport performance through the membrane.
- the zeolite types DDR, DOH, LTA, SGT, MTN, SOD, CHA and mixtures thereof have proven to be particularly suitable from the large number of zeolite framework structures.
- zeolite framework types are flexible in their composition.
- hydrophobic, pure SiO 2 scaffolds can be synthesized that become increasingly hydrophilic by replacement of Si at the tetrahedral position with trivalent cations such as Al, B, Fe, and others, and contain non-framework cations for charge compensation These are then ion exchange reactions available or represent in the protonated form, the reactive centers in acid-catalyzed reactions. Also, the adsorption is influenced by the charge of the unit cell. Molecular sieving is predominant for zeolites with pore sizes in the range of 0.3-0.5 nm. 5
- the invention relates to a process for the hydrothermal production of a microporous membrane, in which a colloidal solution comprising zeolite frameworks with A, 6 and / or 8 ring pores, which are present as crystallites in a size between 2 and 25 nm, using a Nassaufbringungstechnik on a porous substrate is applied.
- the applied layer is hydrothermal
- a nano-crystalline microporous zeolite layer is synthesized having a mean pore diameter of 0.2 to 0.45 nm.
- Such a microporous membrane comprising a porous substrate and at least one nanocrystalline zeolite layer having an average pore diameter of 0.2 to 0.45 nm arranged thereon is advantageously suitable for use as a separation device for a gas phase separation with the aid of which it is possible, in particular N 2 / O 2 -, N 2 / CO 2 - to separate H 2 / CO 2 - or CO 2 / CH 4 - gas mixtures.
- This separating device is particularly temperature-stable and can therefore be integrated directly in thermal processes.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Analytical Chemistry (AREA)
- Geology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005016397A DE102005016397A1 (de) | 2005-04-08 | 2005-04-08 | Membran für Gasphasenseparation sowie dafür geeignetes Herstellungsverfahren |
PCT/DE2006/000593 WO2006105771A1 (de) | 2005-04-08 | 2006-04-01 | Membran für gasphasenseparation sowie dafür geeignetes herstellungsverfahren |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1877167A1 true EP1877167A1 (de) | 2008-01-16 |
Family
ID=36691566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06722743A Withdrawn EP1877167A1 (de) | 2005-04-08 | 2006-04-01 | Membran für gasphasenseparation sowie dafür geeignetes herstellungsverfahren |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090266237A1 (de) |
EP (1) | EP1877167A1 (de) |
JP (1) | JP2008534272A (de) |
DE (1) | DE102005016397A1 (de) |
WO (1) | WO2006105771A1 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8043418B2 (en) * | 2006-12-08 | 2011-10-25 | General Electric Company | Gas separator apparatus |
JP4628431B2 (ja) | 2007-01-09 | 2011-02-09 | 三星エスディアイ株式会社 | 直接メタノール燃料電池用co2セパレータ |
DE502007005183D1 (de) * | 2007-01-09 | 2010-11-11 | Samsung Sdi Co Ltd | CO2-Separator für eine Direktmethanol-Brennstoffzelle (DMFC) |
EP2172426A1 (de) * | 2008-10-02 | 2010-04-07 | Ruhr-Universität Bochum | Templatfreie Clathrasile und Clathrasil-Membranen |
WO2010098473A1 (ja) * | 2009-02-27 | 2010-09-02 | 三菱化学株式会社 | 無機多孔質支持体-ゼオライト膜複合体、その製造方法およびそれを用いた分離方法 |
CN102333727B (zh) * | 2009-03-06 | 2014-03-19 | 日本碍子株式会社 | Ddr型沸石膜的生产方法 |
JP5569901B2 (ja) * | 2009-06-08 | 2014-08-13 | 独立行政法人産業技術総合研究所 | ゼオライト膜、分離膜モジュール及びその製造方法 |
JP5957828B2 (ja) * | 2010-08-26 | 2016-07-27 | 三菱化学株式会社 | ガス分離用ゼオライト膜複合体 |
JP5953674B2 (ja) * | 2010-08-26 | 2016-07-20 | 三菱化学株式会社 | 多孔質支持体―ゼオライト膜複合体およびそれを用いる分離方法 |
US8540800B2 (en) * | 2011-03-21 | 2013-09-24 | Uop Llc | Microporous UZM-5 inorganic zeolite membranes for gas, vapor, and liquid separations |
JP2012246207A (ja) * | 2011-05-31 | 2012-12-13 | Ngk Insulators Ltd | 水素分離方法及び水素分離装置 |
CN108031300B (zh) * | 2012-02-24 | 2022-02-08 | 三菱化学株式会社 | 沸石膜复合体 |
JP6163715B2 (ja) * | 2012-03-30 | 2017-07-19 | 三菱ケミカル株式会社 | ゼオライト膜複合体 |
RU2639908C2 (ru) | 2012-07-25 | 2017-12-25 | Конинклейке Филипс Н.В. | Устройство для сепарации кислорода для адсорбционной системы с реверсированием давления |
JP6166378B2 (ja) * | 2012-12-06 | 2017-07-19 | エクソンモービル リサーチ アンド エンジニアリング カンパニーExxon Research And Engineering Company | 改善されたモルフォロジーを有するzsm−58結晶の合成 |
CN105517708B (zh) * | 2013-07-04 | 2019-01-22 | 道达尔研究技术弗吕公司 | 包括沉积在多孔材料上的小尺寸分子筛晶体的催化剂组合物 |
KR102205266B1 (ko) * | 2018-12-28 | 2021-01-20 | 고려대학교 산학협력단 | Cha 제올라이트 분리막 및 그 제조방법 |
KR102115301B1 (ko) * | 2019-03-18 | 2020-05-26 | 고려대학교 산학협력단 | 이종 제올라이트 분리막의 제조방법 |
KR102217786B1 (ko) * | 2019-07-03 | 2021-02-19 | 고려대학교 산학협력단 | 급속 열처리 공정을 포함한 소성조건 조절을 통한 이산화탄소 선택적인 분리막의 제조방법 및 이로부터 제조된 분리막 |
CN113511633A (zh) * | 2021-07-15 | 2021-10-19 | 云南安锋气体有限公司 | 一种高纯氧气一体化制备工艺 |
CN114749145B (zh) * | 2022-04-28 | 2023-07-18 | 东北石油大学 | 吸附分离氮气与甲烷的分子筛及制备方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100330611B1 (ko) * | 1993-04-23 | 2002-10-04 | 엑손 케미칼 패턴츠 인코포레이티드 | 분자체층및그의제조방법 |
SE9600970D0 (sv) * | 1996-03-14 | 1996-03-14 | Johan Sterte | Förfarande för framställning av mycket tunna filmer av molekylsiktar |
US6709644B2 (en) * | 2001-08-30 | 2004-03-23 | Chevron U.S.A. Inc. | Small crystallite zeolite CHA |
JP4204270B2 (ja) * | 2001-09-17 | 2009-01-07 | 日本碍子株式会社 | Ddr型ゼオライト膜の製造方法 |
NZ531800A (en) * | 2001-09-17 | 2005-04-29 | Ngk Insulators Ltd | Method for preparing ddr type zeolite film, ddr type zeolite film, and composite ddr type zeolite film, and method for preparation thereof |
-
2005
- 2005-04-08 DE DE102005016397A patent/DE102005016397A1/de not_active Withdrawn
-
2006
- 2006-04-01 WO PCT/DE2006/000593 patent/WO2006105771A1/de active Application Filing
- 2006-04-01 JP JP2008504614A patent/JP2008534272A/ja not_active Withdrawn
- 2006-04-01 US US11/887,816 patent/US20090266237A1/en not_active Abandoned
- 2006-04-01 EP EP06722743A patent/EP1877167A1/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2006105771A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2008534272A (ja) | 2008-08-28 |
DE102005016397A1 (de) | 2006-10-12 |
US20090266237A1 (en) | 2009-10-29 |
WO2006105771A1 (de) | 2006-10-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1877167A1 (de) | Membran für gasphasenseparation sowie dafür geeignetes herstellungsverfahren | |
US10639594B2 (en) | Zeolite membrane, production method therefor, and separation method using same | |
US20100270239A1 (en) | Zeolite membrane and methods of making and using same for water desalination | |
DE69126692T3 (de) | Zeolitische Membranen | |
EP3001819B1 (de) | Verfahren zur herstellung einer kristallinen schicht aus zeolith und/oder zeolithkristallen auf einem porösen substrat | |
US11465102B2 (en) | Method of preparing heterogeneous zeolite membranes | |
EP3225298B1 (de) | Chabazitzeolithseparator mit über chemische gasphasenabscheidung gesteuerter porengrösse und verfahren zur herstellung davon | |
WO2010037690A1 (de) | Templatfreie clathrasile und clathrasil-membranen | |
EP2404874B1 (de) | Verfahren zur herstellung von ddr-zeolit-membranen | |
Covarrubias et al. | Removal of trivalent chromium contaminant from aqueous media using FAU-type zeolite membranes | |
DE102018200027A1 (de) | Verfahren zur Herstellung von Zeolithmembranen des Typs Decadodecasil 3R und dadurch hergestellte Membranen | |
DE112020002909T5 (de) | Zeolithmembrankomplex, Verfahren zur Herstellung eines Zeolithmembrankomplexes, Separator, Membranreaktor und Trennverfahren | |
JP5857533B2 (ja) | 有機溶剤−酸−水混合物からの有機溶剤の回収方法 | |
WO2017114853A1 (de) | Zeolithische partikel mit nanometerdimensionen und verfahren zu deren herstellung | |
JP2006326490A (ja) | 無機分離膜及びその製造方法 | |
EP1661616B1 (de) | Gastrennkörper und verfahren zur herstellung desselben | |
EP3423174A1 (de) | Permeationsmembran und verfahren zur herstellung einer permeationsmembran | |
DE102020117510A1 (de) | Verfahren zur Herstellung von CO2-selektiven Membranen durch Steuerung des Kalzinierungsverfahrens einschließlich Rapid Thermal Processing und dadurch hergestellte Membranen | |
DE102019134983A1 (de) | CHA-Zeolithmembran und Verfahren zu ihrer Herstellung | |
US8337588B2 (en) | Modified zeolite Y membranes for high-performance CO2 separation | |
DE69308313T2 (de) | Katalytisches system mit struktur | |
EP2764059B1 (de) | Verfahren zur hydrothermalen synthese eines schwefelhaltigen alumosilikates in kristalliner sodalithstruktur sowie schwefelhaltiges alumosilikat und dessen verwendung | |
EP2539043A1 (de) | Verfahren zur abtrennung von erdgas- oder erdölbegleitgaskomponenten an anorganisch porösen membranen | |
WO2021192454A1 (ja) | ゼオライト膜複合体、分離装置、分離方法、および、ゼオライト膜複合体の製造方法 | |
DE112022005244T5 (de) | Zeolithmembran vom cha-ddr-typ und verfahren zum fertigen davon |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20070922 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MEULENBERG, WILHELM, ALBERT Inventor name: STOEVER, DETLEV Inventor name: VAN DER DONK, GEORGE, JOHANNES, WILHELMUS Inventor name: SERRA ALFARO, JOSE, MANUEL Inventor name: DIE ANDERE ERFINDER HABEN AUF IHRE NENNUNG VERZICH |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: VAN DER DONK, GEORGE, JOHANNES, WILHELMUS Inventor name: DIE ANDERE ERFINDER HABEN AUF IHRE NENNUNG VERZICH Inventor name: SERRA ALFARO, JOSE, MANUEL Inventor name: MEULENBERG, WILHELM, ALBERT Inventor name: STOEVER, DETLEV |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20100408 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20101019 |