CN107185487A - A kind of A type molecular sieve dehumidifying carrier and preparation method thereof - Google Patents
A kind of A type molecular sieve dehumidifying carrier and preparation method thereof Download PDFInfo
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- CN107185487A CN107185487A CN201710369430.4A CN201710369430A CN107185487A CN 107185487 A CN107185487 A CN 107185487A CN 201710369430 A CN201710369430 A CN 201710369430A CN 107185487 A CN107185487 A CN 107185487A
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- molecular sieve
- carrier
- type molecular
- inorfil
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- 239000002808 molecular sieve Substances 0.000 title claims abstract description 160
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 160
- 238000002360 preparation method Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 43
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 239000013078 crystal Substances 0.000 claims description 72
- 239000000835 fiber Substances 0.000 claims description 44
- 239000000725 suspension Substances 0.000 claims description 25
- 238000002425 crystallisation Methods 0.000 claims description 22
- 230000008025 crystallization Effects 0.000 claims description 22
- 239000003365 glass fiber Substances 0.000 claims description 21
- 238000010899 nucleation Methods 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 17
- 238000007598 dipping method Methods 0.000 claims description 17
- 238000001035 drying Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000000919 ceramic Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 16
- 239000012452 mother liquor Substances 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 13
- 239000000017 hydrogel Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 238000010828 elution Methods 0.000 claims description 5
- 238000000053 physical method Methods 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 240000005373 Panax quinquefolius Species 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003786 synthesis reaction Methods 0.000 abstract description 3
- 238000003795 desorption Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 38
- 230000012010 growth Effects 0.000 description 16
- 238000005406 washing Methods 0.000 description 15
- 239000000758 substrate Substances 0.000 description 12
- 230000009102 absorption Effects 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 11
- 239000011152 fibreglass Substances 0.000 description 8
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 239000002274 desiccant Substances 0.000 description 7
- 241000446313 Lamella Species 0.000 description 6
- 239000012153 distilled water Substances 0.000 description 6
- 239000008187 granular material Substances 0.000 description 6
- 239000010457 zeolite Substances 0.000 description 6
- 229910021536 Zeolite Inorganic materials 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 5
- 239000000499 gel Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- 239000013068 control sample Substances 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000020477 pH reduction Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001466460 Alveolata Species 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 239000003230 hygroscopic agent Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 150000001455 metallic ions Chemical class 0.000 description 1
- 230000021332 multicellular organism growth Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- B01J20/02—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
- B01J20/186—Chemical treatments in view of modifying the properties of the sieve, e.g. increasing the stability or the activity, also decreasing the activity
-
- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
- C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
- C01B39/14—Type A
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Geology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Textile Engineering (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a kind of A type molecular sieve dehumidifying carrier and preparation method thereof, the preparation method is：First molecular sieve is supported between inorfil support voids, pass through Vacuum-assisted method reaction synthesis of molecular sieve between inorfil carrier surface and inorfil support voids again, and it is carried on inorfil carrier, support and A type molecular sieve dehumidifying carrier is produced after finishing.Prepared using the inventive method A type molecular sieve dehumidifying carrier sieve hygroscopic capacity it is big, stability is good, desorption temperature at 80~100 DEG C, save mass energy；And preparation technology is easy, raw material can be utilized to greatest extent, it is cost-effective and it is suitable largely put into production, enhance the market competitiveness.
Description
Technical field
The present invention relates to the equipment technical field of the rotary dehumidifier for air dewetting, more particularly to a kind of A types molecule
Screen out wet carrier and preparation method thereof.
Background technology
The desiccant wheel of existing rotary dehumidifier is typically chosen silica gel, molecular sieve, lithium chloride etc. as desiccant wheel
Dehumidizer, domestic in the applying for a patent of desiccant wheel, the mostly structure of runner and handling process design optimization, to be saved
The air of lower dew point can and be provided, including classifying rationally treatment region, a point two-stage rotating wheel are handled, divided before two stages for the treatment of
The processing that Zeng Jia not cool improves effect on moisture extraction etc., and the dehumidizer of desiccant wheel is selected and its supported the patent of process optimization
Then seldom, wherein representative patent is as follows：
CN200610162839.0 discloses a kind of dehumidifying rotor and preparation method thereof, in the cellulosic carrier of dehumidifying rotor
On be mounted with the dehumidifying rotors of two or more zeolites, the dehumidifying oxidant layer of three-decker is formed with the cellulosic carrier, should
The dehumidifying oxidant layer of three-decker is by the first layer containing hydrogen ion exchanging zeolite or the second exchanging zeolite with metallic ion with containing original
Zeolite and the second layer composition for clamping the first layer；
Even if CN200710084129.5 is disclosed, a kind of heter temperature is low than ever, and moisture removal still many dehumidifying turns
Son.The dehumidifying rotor is used in the dehumidifier that the temperature of the opening surface of the entrance side of regeneration air is 250~500 DEG C, wherein,
The mixture of the first dehumidizer and the second dehumidizer is loaded with the cellulosic carrier of dehumidifying rotor, first dehumidizer is de-
Wet peak temperature is 90~160 DEG C of zeolite, and second dehumidizer is that dehumidification peak temperature is 40~100 DEG C and dehumidification peak value
Noncrystalline inorganic porous body of the temperature than low more than 5 DEG C of the dehumidification peak temperature of the zeolite；
CN200910154107.0 discloses a kind of preparation method of lithium chloride silica gel composite turning wheels, and the invention includes successively
Copy paper, upper silica gel, rolling web and runner molding procedure, it is characterised in that：Roll web process and runner molding procedure
Between also successively include dipping silicate solutions, acidification, calcining and dipping lithium chloride solution process, dipping silicate solutions
In process, web is dipped into the aqueous silicate solution that concentration is 10-30%；In acidification process, web is soaked
To concentration in 3-30% acid solution；In calcination process, calcined at a high temperature of web is placed in into 400-500 DEG C；Impregnate chlorine
Change in lithium solution process, in the lithium chloride solution that web is dipped into concentration 15-40%；
And CN201510779585.6 discloses a kind of preparation method of molecular sieve composite fibre section bar, the molecular sieve is answered
Condensating fiber section bar be alveolate texture, the molecular sieve composite fibre section bar can be MFI type, BEA types or FAU types, each type
Molecular sieve composite fibre section bar is made up of several parallel channels, and the height in each duct is 1-30mm, the width in each duct
For 2-60mm, the specific surface area of molecular sieve composite fibre section bar is 200-400m2/g, and the molecular sieve that the present invention is prepared is combined
Fiber section bar has due to abundant fiber gap and macroscopical pore passage structure, being conducive to the material and heat transmission of vapor
The steric requirements of standby fabricated in situ molecular sieve；With surface in situ synthesis of molecular sieve inside fiber section bar, function material had both been realized
The purposes conversion of material, maintains original basic structure and intensity again.
The A type molecular sieve that preparation method of the present invention is related to has unique growth mechanism, " in hydrothermal system, its crystal
The phenomenon of splicing growth, i.e. system are there is in growth course after a crystallization induction period, substantial amounts of nanocrystalline formation,
It is nanocrystalline as growth unit, direct superposed evolution is mutually assembled rapidly for micron polycrystal or micron monocrystalline, lamination process is not
It is same as the described growth unit of vicinal surface growth and is embedded in crystal face in order one by one, but it is many nanocrystalline while mutually pressing one
Determine direction engagement and form crystallite.The crystallization middle and later periods, nanocrystalline depleted, system saturation degree declines, and splicing growth stops, brilliant
By linear rule progress, (Lee is thick for body growth《The theoretical model of A type molecular sieve growth》)”.
The content of the invention
The present invention is intended to provide a kind of manufacture craft is easy, can utilize raw material to greatest extent, it is cost-effective and it is suitable greatly
Measure the A type molecular sieve dehumidifying honeycomb substrate and preparation method thereof put into production, it is of the invention to focus on utilizing A type molecular sieve phase
The growth mechanism unique to other hygroscopic agents, is carried out supporting growth with inorfil.
To achieve the above object, the present invention uses following technical scheme：
The first aspect of the invention is to provide a kind of preparation method of A type molecular sieve dehumidifying carrier, main technical schemes
It is that molecular sieve seed is first supported between inorfil support voids, then by Vacuum-assisted method reaction in inorfil carrier table
Synthesis of molecular sieve between face and inorfil support voids, and it is carried on inorfil carrier, support and A types are produced after finishing
Molecular sieve dehumidifying carrier.
Further, the preparation method of described A type molecular sieve dehumidifying carrier, specifically includes following steps：
Step 1, by the inorfil carrier of sheet after pretreatment, gap and surface are formed using physical method therebetween
The A type molecular sieve crystal seed suspension of one layer of preparation, seeding carrier is made after being dried in 50~70 DEG C；Wherein, the A types molecule
The concentration for sieving crystal seed suspension is 1.0-2.0wt%；
Step 2, compound concentration is 1.0-3.0wt% A type molecular sieve mother liquor, and seeding carrier made from step 1 is put
Enter in the reactor for filling the A type molecular sieve mother liquor, crystallization 1-5h under 80-120 DEG C of constant temperature oven, crystallization knot are placed in after sealing
Beam is to take out reactor rapidly to be cooled down with running water, further takes out and supports after the inorfil carrier finished washed, is placed in 50-
250 DEG C of drying in oven, produces A type molecular sieve dehumidifying carrier.
Further, in the preparation method of described A type molecular sieve dehumidifying carrier, the inorfil carrier is selected from glass
One or more in glass fiber, ceramic fibre, high silica fiber or alumina fibre.
Further, in the preparation method of described A type molecular sieve dehumidifying honeycomb substrate, the inorfil is selected from
Glass fibre and high silica fiber, wherein, by support finish flat type high silica fiber processing it is corrugated, then by its with it is another
Outer flat piece type glass fibre overlapping, forms one layer of carrier, this layer processing is wound into cylinder, using this structure A types
Molecular sieve dehumidifying honeycomb substrate has more excellent moisture pick-up properties.(delete reason：Do not know this section of purpose) (this part is
Selection to above-mentioned " inorfil carrier " is further expanded, it is proposed that retained)
Further, in the preparation method of described A type molecular sieve dehumidifying carrier, the pre- place of the inorfil carrier
Reason method is：Inorfil carrier is put into distilled water and uses supersound washing, inorfil surface is washed away and internal voids is deposited
Granule foreign；The ultrasonic washing 2 times, each 2-4min.
Further, in the preparation method of described A type molecular sieve dehumidifying carrier, the A type molecular sieve dehumidifying carrier
Honeycomb processing is carried out again after molecular sieve supported finish is carried out by inorfil to be made.
Further, in the preparation method of described A type molecular sieve dehumidifying carrier, the A type molecular sieve dehumidifying carrier
Molecular sieve supported be made is carried out again after honeycomb machine-shaping is carried out by inorfil.
Further, in the preparation method of described A type molecular sieve dehumidifying carrier, A type molecular sieve in the step (1)
The preparing process of crystal seed suspension is：A type molecular sieve crystal seed liquid is first prepared, is placed in ultrasonic wave and shakes 10-30min, make molecule
Sieve crystal seed is uniformly dispersed, then a certain amount of hydrogel is added in A type molecular sieve crystal seed liquid, and the concentration for obtaining dipping is
1.0-2.0wt% A type molecular sieve crystal seed suspension.、
Further, in the preparation method of described A type molecular sieve dehumidifying carrier, A type molecular sieve in the step (1)
The mass ratio of crystal seed and hydrogel is (8-10) in crystal seed suspension：1；Preferably, in the crystal seed suspension of dipping crystal seed and
The mass ratio of gel is 9：1.
Further, in the preparation method of described A type molecular sieve dehumidifying carrier, the A type molecular sieve crystal seed suspends
The concentration of liquid is 1.3-1.8wt%；Preferably 1.5wt%.(this part is the further restriction of above-mentioned technical proposal, it is proposed that protected
Stay)
Further, in the preparation method of described A type molecular sieve dehumidifying carrier, physical method in the step (1)
For dipping, spraying or elution technique, preferably impregnation technology.
Further, in the preparation method of described A type molecular sieve dehumidifying honeycomb substrate, dried in the step (1)
Temperature is 50-70 DEG C；Preferably, drying temperature is 55-65 DEG C；It is highly preferred that drying temperature is 60 DEG C.
Further, in the preparation method of described A type molecular sieve dehumidifying carrier, crystallization temperature in the step (2)
For 90-110 DEG C, crystallization time is 2~3h, and drying temperature is 140-160 DEG C；Preferably, the crystallization temperature is 95-100 DEG C,
Crystallization time is 2.5h, and drying temperature is 150-155 DEG C.
As the optimal technical scheme of the present invention, described A type molecular sieve dehumidifies the preparation method of honeycomb substrate, tool
Body comprises the following steps：
Step 1, lamella inorfil is pre-processed：The inorfil of two panels lamella flat type is taken, is put it into distilled water
Using supersound washing, the granule foreign that inorfil surface and internal voids are present is washed away；
Step 2, prepared by A type molecular sieve crystal seed liquid：Compound concentration is 1.0-2.0wt% crystal seed liquid, is placed in ultrasonic wave
10-30min is shaken, molecular sieve seed is uniformly dispersed, then a certain amount of hydrogel is added in crystal seed liquid, dipping is obtained and uses
Crystal seed suspension；
Step 3, inorfil supported carrier A type molecular sieve crystal seed：By crystal seed suspension made from step (2), pass through thing
Reason method forms one layer of A type molecular sieve crystal seed layer in inorfil carrier gap and surface, and drying obtains seeding carrier；
Step 4, secondary Vacuum-assisted method：Seeding carrier made from step (3) is put into and fills concentration 1.0-
In the reactor of 3.0wt%A type molecular sieve mother liquors, crystallization 1-5h under 80-120 DEG C of constant temperature oven is placed in after reactor is sealed,
The seeding carrier is using the A type molecular sieve crystal seed layer formed in step (3) is as organic centre or provides nucleus, from molecular sieve
Required raw material is drawn in mother liquor, to all directions growth filling inorfil support voids；After crystallization terminates, reaction is taken out
Kettle, reactor is rapidly cooled down with running water, further takes out the inorfil carrier for supporting and finishing, and is washed with deionized three times, is washed
Wash and 50-250 DEG C of drying in oven is placed in after finishing；
Step 5, carrier is wound into honeycomb substrate：Step (4) is supported to the wherein flat piece type inorfil finished to add
Work is corrugated, then it is overlapped with other flat piece type inorfil, forms one layer of carrier, and this layer processing is wound into circle
Cylinder, produces A type molecular sieve dehumidifying honeycomb substrate.
The second aspect of the invention is to provide A type molecular sieve dehumidifying carrier prepared by a kind of use above method, the A
Type molecular sieve dehumidifying carrier is cellular cylindrical structure, and it supports the inorfil finished by two layers through overlapping, winding
Into wherein one layer is supports the flat type inorfil finished, one layer processes to support the flat type inorfil finished
Corrugated inorfil.
The present invention uses above-mentioned technical proposal, compared with prior art, have the following technical effect that：
A type molecular sieve of the present invention dehumidifies the preparation method of carrier, directly by molecular sieve seeded dispersion in being supported on load after water
On body, in theory except inorfil carrier, remaining is useful molecular sieve；Inorfil be make use of as runner base material,
Material is extensive, environmental protection, and plasticity is extremely strong, and arbitrary dimension and the runner section bar of form can be prepared into as needed；This hair
The bright molecular sieve supported method in inorfil carrier is simply direct, than making supported carrier molecule in silicon source silicon source mixed solution
The method cost of sieve is low, and this method eliminates the nucleating process required for molecular sieve crystal growth, is conducive to molecular sieve
Preferentially grown on supporter, so as to be easier to make it combine the molecular sieve that inorfil therein skeleton structure forms densification
Crystal layer.
In summary, the A type molecular sieve prepared using the inventive method is dehumidified, and carrier sieve hygroscopic capacity is big, stability is good, solution
Temperature is inhaled at 80~100 DEG C, saves mass energy；And preparation technology is easy, raw material can be utilized to greatest extent, it is cost-effective simultaneously
It is adapted to largely put into production, enhances the market competitiveness.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the individual layer A type molecular sieve dehumidifying carrier after the present invention is supported；
Fig. 2 be using A type molecular sieve of the present invention dehumidifying carrier rolling around cylinder cross-sectional view；
Fig. 3 is 1-4's and comparative example molecular sieve carried amount contrast schematic diagram of the embodiment of the present invention.
Embodiment
A type molecular sieve is prepared the invention provides one kind as the desiccant wheel primary absorbent agent using A type molecular sieve to remove
The method of wet carrier, its main technical principle is：By by inorfil (glass fibre, ceramic fibre, high silica fiber or
Alumina fibre etc.) one layer of A type molecular sieve crystal seed is supported on the chip carrier that is made, utilize the relatively other moisture absorptions of A type molecular sieve
The unique growth mechanism of agent, makes it in being initially formed one layer of stable growth unit on inorfil, then close by Situ Hydrothermal
Proceed the growth of A type molecular sieve crystal seed to it into method, A type molecular sieve crystal seed is mutually assembled, in the space of inorfil
Firm micron crystalline substance is grown into splicing, is taken out, is dried at 150 DEG C after certain time；By the sheet flat type containing molecular sieve without
The corrugation processing and forming of machine fiber plates 2 is corrugated, and it contains the inorganic fibre of flat type of molecular sieve with other a piece of sheet again
Dimension plates 1 are overlapped, and produce the dehumidifying carrier of the individual layer A type molecular sieve after supporting, structure as shown in Figure 1；Finally by individual layer A types
Molecular sieve dehumidifying carrier is wound into cylinder, that is, obtains A type molecular sieve dehumidifying honeycomb substrate (runner), structure as shown in Figure 2.
The present invention is described in more detail below by specific embodiment, for a better understanding of the present invention,
But following embodiments are not intended to limit the scope of the invention.
The preparation of the A type molecular sieve of embodiment 1 dehumidifying carrier
(1) lamella glass fibre is pre-processed：Take a piece of 10 ㎝ × 60cm sheet flat type glass fibre A and a piece of 10cm
× 100cm sheet flat type glass fibre B, puts it into supersound washing 2min in distilled water, and repeated washing 2 times washes away glass
The granule foreign that glass fiber surface and internal voids are present；
(2) prepared by A type molecular sieve crystal seed liquid：Compound concentration is 1.0wt% crystal seed liquid, shakes 30min in ultrasonic wave, makes
Molecular sieve seed is uniformly dispersed, then a certain amount of hydrogel is added in the crystal seed suspension that concentration is 3.0wt%, wherein brilliant
The mass ratio of the crystal seed and gel of planting suspension is 10：1, obtain the crystal seed suspension of dipping；
(3) fiberglass carrier supports A type molecular sieve crystal seed：By dipping method one is formed on fiberglass carrier surface
Layer A type molecular sieve crystal seed, in 65 DEG C of drying, obtains the carrier of falling seeding；
(4) secondary Vacuum-assisted method in fiberglass carrier：Seeding carrier is continued to be put into and fills 1.0wt%A types
In the reactor of molecular sieve mother liquor, crystallization 2h under 90 DEG C of constant temperature ovens is placed in after reactor is sealed, then by seeding carrier
Using the A type molecular sieve crystal seed layer formed in step (3) is as organic centre or provides nucleus, institute is drawn from molecular sieve mother liquor
The raw material needed, filled glass fiber support voids are grown to all directions；Crystallization takes out reactor after terminating, anxious with running water
Quickly cooling but reactor, further takes out the fiberglass carrier for supporting and finishing, is washed with deionized three times, and washing is placed in after finishing
140 DEG C of drying in oven；
(5) carrier is wound into runner：By support finish flat type glass fibre B processing it is corrugated, then by its with it is another
It is a piece of to support the flat type glass fibre A overlappings finished, one layer of carrier is formed, this layer processing is wound into cylinder, A types are produced
Molecular sieve dehumidifying honeycomb substrate.
The preparation of the A type molecular sieve of embodiment 2 dehumidifying carrier
(1) lamella glass fibre is pre-processed：Take a piece of 10 ㎝ × 60cm sheet flat type glass fibre A and a piece of 10cm
× 100cm sheet flat type glass fibre B, puts it into supersound washing 2min in distilled water, and repeated washing 2 times washes away glass
The granule foreign that glass fiber surface and internal voids are present；
(2) prepared by A type molecular sieve crystal seed liquid：Compound concentration is 1.5wt% crystal seed liquid, shakes 20min in ultrasonic wave, makes
Molecular sieve seed is uniformly dispersed, then a certain amount of hydrogel is added in the crystal seed suspension that concentration is 1.0wt%, wherein brilliant
The mass ratio of the crystal seed and gel of planting suspension is 8：1, obtain the crystal seed suspension of dipping；
(3) fiberglass carrier supports A type molecular sieve crystal seed：Carried by dipping, spraying or ELUTION METHOD in glass fibre
Body surface face forms one layer of A type molecular sieve crystal seed, in 65 DEG C of drying, obtains the carrier of falling seeding；
(4) secondary Vacuum-assisted method in fiberglass carrier：Seeding carrier is continued to be put into and fills 2.0wt%A types
In the reactor of molecular sieve mother liquor, crystallization 5h under 90 DEG C of constant temperature ovens is placed in after reactor is sealed, then by seeding carrier
Using the A type molecular sieve crystal seed layer formed in step (3) is as organic centre or provides nucleus, institute is drawn from molecular sieve mother liquor
The raw material needed, filled glass fiber support voids are grown to all directions；Crystallization takes out reactor after terminating, anxious with running water
Quickly cooling but reactor, further takes out the fiberglass carrier for supporting and finishing, is washed with deionized three times, and washing is placed in after finishing
140 DEG C of drying in oven；
(5) carrier is wound into runner：By support finish flat type glass fibre B processing it is corrugated, then by its with it is another
Flat piece type glass fibre A is overlapped, and forms one layer of carrier, and this layer processing is wound into cylinder, produces A type molecular sieve dehumidifying
Honeycomb substrate.
The preparation of the A type molecular sieve of embodiment 3 dehumidifying carrier
(1) lamella glass fibre is pre-processed：Take a piece of 10 ㎝ × 60cm sheet flat type ceramic fibre A and a piece of 10cm
× 100cm sheet flat type ceramic fibre B, puts it into supersound washing 2min in distilled water, and repeated washing 2 times washes away pottery
The granule foreign that porcelain fiber surface and internal voids are present；
(2) prepared by A type molecular sieve crystal seed liquid：Compound concentration is 3.0wt% crystal seed liquid, shakes 10- in ultrasonic wave
30min, makes molecular sieve seed be uniformly dispersed, then a certain amount of hydrogel is added into the crystal seed suspension that concentration is 1.5wt%
In, wherein the mass ratio of the crystal seed of crystal seed suspension and gel is 9：1, obtain the crystal seed suspension of dipping；
(3) fiber carrier supports A type molecular sieve crystal seed：By dipping, spraying or ELUTION METHOD in fiber carrier surface shape
Into one layer of A type molecular sieve crystal seed, in 60 DEG C of drying, the carrier of falling seeding is obtained；
(4) secondary Vacuum-assisted method on fiber carrier：Seeding carrier is continued to be put into and fills 1.5wt%A type molecules
In the reactor for sieving mother liquor, crystallization 1h under 100 DEG C of constant temperature ovens is placed in after reactor is sealed, then seeding carrier is utilized
The A type molecular sieve crystal seed layer formed in step (3) is as organic centre or provides nucleus, required for being drawn from molecular sieve mother liquor
Raw material, to all directions grow fiberfill fibers support voids；Crystallization takes out reactor after terminating, and is rapidly cooled down with running water anti-
Kettle is answered, the fiber carrier for supporting and finishing is further taken out, is washed with deionized three times, washing is placed in baking in 150 DEG C of baking ovens after finishing
It is dry；
(5) carrier is wound into runner：By support finish flat type ceramic fibre B processing it is corrugated, then by its with it is another
Flat piece type ceramic fibre A is overlapped, and forms one layer of carrier, and this layer processing is wound into cylinder, produces A type molecular sieve dehumidifying
Honeycomb substrate.
The preparation of the A type molecular sieve of embodiment 4 dehumidifying carrier
(1) lamella fiber is pre-processed：Take a piece of 10 ㎝ × 60cm sheet flat type ceramic fibre A and a piece of 10 ㎝ ×
100cm sheet flat type high silica fiber B, is put into supersound washing 4min in distilled water, and repeated washing 2 times washes away fiber
The granule foreign that surface and internal voids are present；
(2) prepared by A type molecular sieve crystal seed liquid：Compound concentration is 3.0wt% crystal seed liquid, shakes 10- in ultrasonic wave
30min, makes molecular sieve seed be uniformly dispersed, then a certain amount of hydrogel is added into the crystal seed suspension that concentration is 1.5wt%
In, wherein the mass ratio of the crystal seed of crystal seed suspension and gel is 9：1, obtain the crystal seed suspension of dipping；
(3) fiber carrier supports A type molecular sieve crystal seed：By dipping, spraying or ELUTION METHOD in fiber carrier surface shape
Into one layer of A type molecular sieve crystal seed, in 60 DEG C of drying, the carrier of falling seeding is obtained；
(4) secondary Vacuum-assisted method on fiber carrier：Seeding carrier is continued to be put into and fills 1.5wt%A type molecules
In the reactor for sieving mother liquor, crystallization 1h under 100 DEG C of constant temperature ovens is placed in after reactor is sealed, then seeding carrier is utilized
The A type molecular sieve crystal seed layer formed in step (3) is as organic centre or provides nucleus, required for being drawn from molecular sieve mother liquor
Raw material, to all directions grow fiberfill fibers support voids；Crystallization takes out reactor after terminating, and is rapidly cooled down with running water anti-
Kettle is answered, the fiber carrier for supporting and finishing is further taken out, is washed with deionized three times, washing is placed in baking in 150 DEG C of baking ovens after finishing
It is dry；
(5) carrier is wound into runner：By support finish flat type high silica fiber B processing it is corrugated, then by its with
Other flat piece type ceramic fibre A overlappings, form one layer of carrier, and this layer processing is wound into cylinder, A type molecular sieve is produced
Dehumidify honeycomb substrate.
Performance test：
First, basic data：
1st, experimental inorganic fiber paper size：A)：10cm (width) x60cm (length) x0.2mm (thickness), 1 piece；
B)：10cm (width) x100cm (length) x0.2mm (thickness), 1 piece；
2nd, inorfil cardboard level ground weight：40g/m2；
2nd, the preparation method of A type molecular sieve dehumidifying carrier：
1st, carry out crystal seed with the inorganic fibre paper of dimensions above to support, Hydrothermal Synthesiss obtain being loaded with the nothing of A type molecular sieve
Machine fiber sheet；
2nd, the inorfil cardboard B of A type molecules will be loaded with) carry out ripple forming processing, be loaded with A type molecular sieve without
Machine fiber sheet A) fitted, in rolls, obtain cylindric moisture absorption honeycomb ceramics C).
3rd, carrier is dehumidified as detection sample using the A type molecular sieve obtained by embodiments of the present invention 1-4, with prior art
Middle desiccant wheel is control sample, and the control sample is that molecular sieve dipping is supported on Si systems or Al systems inorganic adhesive, is then glued
Knot is in the carrier that dehumidified made from inorfil carrier.Respectively to the present embodiment 1-4 moisture absorption honeycomb ceramics C) and control sample dehumidifying
The wettability power of runner is tested, and specific method of testing is as follows：
1st, by moisture absorption honeycomb ceramics C) water desorption drying process 20min is carried out with 180 DEG C of hot-airs；
2nd, the weight of dried moisture absorption honeycomb ceramics is measured, the molecular sieve carried amount of inorganic fibre paper plate is obtained by calculating
(g1)；
3rd, the moisture absorption honeycomb ceramics after drying process is exposed in relative humidity 80-90%, 30 DEG C of air, moisture absorption honeycomb
Moisture in body absorption air, untill the weight of honeycomb ceramics reaches balance, records weight (g2)；
4th, computational methods：
A, inorfil cardboard molecular sieve carried amount=(g1- (0.1x0.6+0.1x1) x40)/(0.1x0.6+
0.1x1)；
B, moisture absorption honeycomb ceramics water absorption=g2-g1；
5th, specific test test result is as shown in Fig. 3 and following table one：
Table one：Each performance detection data
| Sample | Molecular sieve carried amount (g/m2) | Hygroscopic capacity (g) |
| Embodiment 1 | 134.3 | 47 |
| Embodiment 2 | 163.8 | 59 |
| Embodiment 3 | 98.8 | 34.8 |
| Embodiment 4 | 114.3 | 38.9 |
| Comparative example 1* | 162.5 | 34.1 |
4th, comparative analysis：
The desiccant wheel of comparative example, which supports molecular sieve, needs addition Si systems or Al systems inorganic adhesive, accounts for lophophore loading weight
The 30% of amount, absorption of these bonding agents to moisture is no positive role, reduces the water-taking efficiency of whole runner；And this
Directly by molecular sieve seeded dispersion in being supported on after water on carrier in invention, in theory except fiberglass carrier, remaining is
Useful molecular sieve.For example, the loading of runner base material is 200kg/m3, wherein bonding agent accounts for 60kg in comparative example；And adopt
With A type molecular sieve dehumidifying carrier made from the inventive method embodiment 1-4,200kg can be molecular sieve in theory.In addition,
The present invention is using inorfil as runner base material, and material is extensive, environmental protection, and plasticity is extremely strong, can prepare as needed
Into arbitrary dimension and the runner section bar of form.
In summary, the molecular sieve supported method in inorfil carrier that the present invention is used is simply direct, than in silicon source
Make the method cost of supported carrier molecular sieve low in silicon source mixed solution, and it is required to this method eliminates molecular sieve crystal growth
Nucleating process, be conducive to molecular sieve is preferential to be grown on supporter, so as to be easier to make it combine inorfil itself
Inner skeleton structure forms the molecular sieve crystal layer of densification.
The specific embodiment of the present invention is described in detail above, but it is intended only as example, and the present invention is not limited
It is formed on particular embodiments described above.To those skilled in the art, it is any to the equivalent modifications that carry out of the present invention and
Substitute also all among scope of the invention.Therefore, the impartial conversion made without departing from the spirit and scope of the invention and
Modification, all should be contained within the scope of the invention.
Claims (10)
- The preparation method of carrier 1. a kind of A type molecular sieve dehumidifies, it is characterised in that first supported between inorfil support voids point Son sieve crystal seed, then pass through Vacuum-assisted method reaction synthetic molecules between inorfil carrier surface and inorfil support voids Sieve, and it is carried on inorfil carrier, support and A type molecular sieve dehumidifying carrier is produced after finishing.
- The preparation method of carrier 2. A type molecular sieve according to claim 1 dehumidifies, it is characterised in that specifically include as follows Step：Step 1, by the inorfil carrier of sheet after pretreatment, gap and surface utilize one layer of physical method formation therebetween The A type molecular sieve crystal seed suspension of preparation, seeding carrier is made after being dried in 50~70 DEG C；Wherein, the A type molecular sieve is brilliant The concentration for planting suspension is 1.0-2.0wt%；Step 2, compound concentration is 1.0-3.0wt% A type molecular sieve mother liquor, and seeding carrier made from step 1 is put into Sheng In the reactor for having the A type molecular sieve mother liquor, crystallization 1-5h under 80-120 DEG C of constant temperature oven is placed in after sealing, crystallization terminates i.e. Take out reactor rapidly to be cooled down with running water, further take out and support after the inorfil carrier finished washed, be placed in 50-250 DEG C drying in oven, produce A type molecular sieve dehumidifying carrier.
- The preparation method of carrier 3. A type molecular sieve according to claim 1 or 2 dehumidifies, it is characterised in that the inorganic fibre Tie up one or more of the carrier in glass fibre, ceramic fibre, high silica fiber or alumina fibre.
- The preparation method of carrier 4. A type molecular sieve according to claim 1 or 2 dehumidifies, it is characterised in that the A types point Son screen out wet carrier by inorfil carry out it is molecular sieve supported finish after carry out again honeycomb processing be made.
- The preparation method of carrier 5. A type molecular sieve according to claim 1 or 2 dehumidifies, it is characterised in that the A types point Son screens out wet carrier and carries out molecular sieve supported be made again after honeycomb machine-shaping is carried out by inorfil.
- The preparation method of carrier 6. A type molecular sieve according to claim 2 dehumidifies, it is characterised in that in the step (1) The preparing process of A type molecular sieve crystal seed suspension is：A type molecular sieve crystal seed liquid is first prepared, is placed in ultrasonic wave and shakes 10- 30min, makes molecular sieve seed be uniformly dispersed, then a certain amount of hydrogel is added in A type molecular sieve crystal seed liquid, is impregnated The A type molecular sieve crystal seed suspension that concentration is 1.0-2.0wt%.
- The preparation method of carrier 7. A type molecular sieve according to claim 6 dehumidifies, it is characterised in that in the step (1) The mass ratio of crystal seed and hydrogel is (8-10) in A type molecular sieve crystal seed suspension：1.
- The preparation method of carrier 8. A type molecular sieve according to claim 2 dehumidifies, it is characterised in that in the step (1) Physical method is dipping, sprayed or elution technique.
- The preparation method of carrier 9. A type molecular sieve according to claim 2 dehumidifies, it is characterised in that in the step (2) Crystallization temperature is 90-110 DEG C, and crystallization time is 2~3h, and drying temperature is 140-160 DEG C.
- 10. a kind of A type molecular sieve dehumidifying carrier prepared such as any one of claim 1-9 methods described.
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