CN105363411B - A kind of preparation method of molecular sieve absorption proximate matter - Google Patents
A kind of preparation method of molecular sieve absorption proximate matter Download PDFInfo
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- CN105363411B CN105363411B CN201510778243.2A CN201510778243A CN105363411B CN 105363411 B CN105363411 B CN 105363411B CN 201510778243 A CN201510778243 A CN 201510778243A CN 105363411 B CN105363411 B CN 105363411B
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- 239000002808 molecular sieve Substances 0.000 title claims abstract description 98
- 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 98
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 230000001413 cellular effect Effects 0.000 claims abstract description 3
- 239000000835 fiber Substances 0.000 claims description 88
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 49
- 239000000203 mixture Substances 0.000 claims description 19
- 238000007254 oxidation reaction Methods 0.000 claims description 19
- 229920002994 synthetic fiber Polymers 0.000 claims description 19
- 239000012209 synthetic fiber Substances 0.000 claims description 19
- 239000000919 ceramic Substances 0.000 claims description 15
- 239000003365 glass fiber Substances 0.000 claims description 14
- 230000003647 oxidation Effects 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 238000007598 dipping method Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000010828 elution Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000003786 synthesis reaction Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 18
- 239000005416 organic matter Substances 0.000 abstract description 4
- 239000000796 flavoring agent Substances 0.000 abstract description 3
- 235000019634 flavors Nutrition 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 11
- 239000002131 composite material Substances 0.000 description 8
- 239000003292 glue Substances 0.000 description 8
- 239000004411 aluminium Substances 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 229920000297 Rayon Polymers 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229920002239 polyacrylonitrile Polymers 0.000 description 5
- 239000000741 silica gel Substances 0.000 description 5
- 229910002027 silica gel Inorganic materials 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001802 infusion Methods 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000007233 catalytic pyrolysis Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- -1 similarly Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- 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
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- 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
- B01J20/28045—Honeycomb or cellular structures; Solid foams or sponges
-
- 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
- B01J20/28054—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 surface properties or porosity
- B01J20/28078—Pore diameter
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/42—Materials comprising a mixture of inorganic materials
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses the preparation methods that a kind of molecular sieve adsorbs proximate matter, belong to molecular sieve and its preparing technical field.The structure of the molecular sieve absorption proximate matter is cellular, is made of several parallel channels, and the height in each duct is 1 30mm, and the width in each duct is 2 60mm, and the specific surface area that molecular sieve adsorbs proximate matter is 200 400m2/ g, molecular sieve adsorb the combination that the raw molecule sieve that proximate matter is selected is MFI type, BEA types, FAU types or any one or more molecular sieve in MOR types.The pore-size distribution of proximate matter of the present invention is abundanter than single molecular sieve, most of volatile organic matter, gas with foreign flavor etc., which can be covered, needs processing gas, process range is wide, selects the group merging of different kinds of molecules sieve to be adhered at Surface of profile and gap, realizes pore-size distribution different on proximate matter.
Description
Technical field
The present invention relates to molecular sieve and its preparing technical fields, and in particular to a kind of preparation side of molecular sieve absorption proximate matter
Method.
Background technology
The sorbing materials such as activated carbon, molecular sieve are in removal volatile organic matter etc. with being widely used on the way.Relative to biography
The absorbent charcoal material of system, molecular sieve have non-flammable safety as inorganic material, can handle the VOC of higher boiling point at
Point, the absorption property of hydrophobic molecule sieve is insensitive to humidity, can carry out selective absorption to organic exhaust gas, this technology
Using being just growing.But, the compound with regular structure of molecular sieve, pore size is uniform, only pair with its aperture and comparable point of polarity
Son has preferable adsorption effect, and exhaust gas constituents are usually very complicated, each not phase of the molecular dimension and polarity size of various compounds
Together, effective covering to all the components is difficult to realize using single molecular sieve.
Currently available technology has developed the molecular sieve with micropore and mesoporous hierarchical porous structure, mainly as heavy oil
Catalytic pyrolysis purposes realizes the cracking step by step to long-chain macromolecule hydro carbons, similarly, compound or total using mesoporous and micro porous molecular sieve
Crystalline substance, also for the substep catalysis realized to macromolecular, but this method is not to be directed to organic molecule, cannot be solved above-mentioned
Problem；Also there is the method for the compound sieved using eutectic growth different kinds of molecules, but this technique is difficult to accurately control, repeatability
Difference, and limited by synthesis condition, the molecular sieve combination that can be realized is limited, cannot realize the bore diameter gradient point of desired extent well
Cloth.
Invention content
Task of the invention lies in provide a kind of preparation method of molecular sieve absorption proximate matter, the proximate matter that this method is prepared
Pore-size distribution it is abundanter than single molecular sieve, can cover most of volatile organic matter, gas with foreign flavor etc. needs processing gas, place
It is wide to manage range.
Its technical solution includes：
A kind of preparation method of molecular sieve absorption proximate matter, includes the following steps successively：
A, proximate matter is prepared, proximate matter prepares selecting method a1Or method a2, the method a1It is by silica, oxidation
Aluminium, alumina silicate or titania powder squeeze out to obtain proximate matter；The method a2It is to select a diameter of 2-20 microns, length is
The mixture of 500-8000 microns of fiber carries out copy paper, is then squeezed into the paper with male and fomale(M＆F), and the paper of gained male and fomale(M＆F) is viscous
Knot forms lamina on flat paper, and by layered body by accumulating or being wound into proximate matter, the mixture of the fiber is selection
At least one of at least one of synthetic fibers or natural fiber and ceramic fibre, glass fibre or activated carbon fibre are mixed
It closes；
B, stair oxidation, secondary oxidation and steam treatment are carried out respectively to proximate matter obtained by step a, by the conjunction in proximate matter
At activated carbon fibre is converted into fiber or/and natural fiber, it is 150-300 DEG C that wherein stair oxidation, which is in inertia and temperature,
Condition carry out, secondary oxidation is that the condition for being 700-900 DEG C in inertia and temperature carries out；
C, to treated, Surface of profile adheres to inorganic bond, by molecular sieve uniform adhesion in Surface of profile and gap
Place, drying obtain molecular sieve absorption proximate matter green body；
D, it is 50-600 DEG C in hot blast temperature by molecular sieve absorption proximate matter green body obtained by step c to be dried to get molecule
Sieve absorption proximate matter；The structure that gained molecular sieve adsorbs proximate matter is cellular, is made of several parallel channels, the height in each duct
Degree is 1-30mm, and the width in each duct is 2-60mm, specific surface area 200-400m2/g。
It selects the group merging of different kinds of molecules sieve to be adhered at Surface of profile and gap in the preparation method, realizes proximate matter
Upper different pore-size distribution, need to be in inertia when needing retentive activity Carbon fibe when being dried by hot wind in above-mentioned steps d
Implement under atmosphere.
Preferably, molecular sieve is one or more combinations in MFI type, BEA types, FAU types or MOR types.
Preferably, in step c, inorganic bond is Ludox and Aluminum sol.
Preferably, in step c, the molecular sieve is MFI type, the group of four kinds of BEA types, FAU types and MOR types molecular sieves
It closes.
Preferably, in step c, molecular sieve is adhered to proximate matter by inorganic bond by way of dipping, spraying or elution
Surface.
Advantageous effects caused by the present invention：
The present invention selects different types of molecular sieve combination, the molecular sieve that is combined such as MFI and BEA types or BEA, FAU with
The molecular sieve of MOR types combination, different types of molecular sieve is adhered in the surface and gap of proximate matter, with single molecular sieve phase
Than molecular sieve absorption proximate matter pore-size distribution of the present invention is abundant, and can cover most of volatile organic matter, gas with foreign flavor etc. needs to locate
Process gases, process range are wide；
In the preparation method of proximate matter, multiple fiber mixture can be selected and carry out copy paper, ceramic fibre has high-fire resistance, glass
There is glass fiber heat resistance and high intensity, activated carbon fibre to have suction-operated, and the intensity of natural fiber or synthetic fibers is big, parent
It is aqueous strong, interfibrous active force can be increased, the proximate matter preparation process before comparing, multiple fiber mixing, which has, preferably to be added
Work and performance.
Preparation method of the present invention is easy to operate, and according to certain method and steps, situation is formed according to real gas, in conjunction with
Molecular sieve combination is attached on proximate matter by the characteristics of molecular sieve, realizes pore-size distribution different on proximate matter, material preparation and process
Treatment process has specific aim, using flexible；
The molecular sieve proximate matter that preparation method of the present invention can prepare size and come in every shape can such as stratiform or block structure
It is used using as functional component, being used alone or assembling, can also be used as carrier and continue additional other materials, there is throughput
Greatly, the big advantage of contact area.
Specific implementation mode
The present invention proposes a kind of preparation method of molecular sieve absorption proximate matter, in order to make advantages of the present invention, technical solution
It is clearer, clear, it elaborates to the present invention with reference to specific embodiment.
The fiber that the present invention selects is 0.1-80 parts of ceramic fibre, glass fibre 0.1-80 respectively in parts by weight
Part, 0.1-80 parts of activated carbon fibre, 0.1-10 parts of synthetic fibers and 0.1-10 parts of natural fiber；According to the type and weight of fiber
Number can have following several combinations：
Such as select two kinds of fibers：80 parts of ceramic fibre, 10 parts of synthetic fibers；Or 80 parts of glass fibre, 10 parts of natural fiber；
Or 80 parts of ceramic fibre, 10 parts of natural fiber；
According to the type and parts by weight of above-mentioned fiber, those skilled in the art can also be randomly divided into various combination.
The molecular sieve that the present invention selects is one or more combinations of MFI type, BEA types, FAU types or MOR types, such as two kinds
Combination：MFI type and BEA types molecular sieve, FAU types and MOR type molecular sieves；Such as three kinds of combination：MFI type, BEA types and FAU types
Molecular sieve, BEA types, FAU types and MOR type molecular sieves；Such as four kinds of combination, MFI type, BEA types, FAU types and MOR type molecular sieves.
The combination that preferably four kinds of the present invention, four kinds of different types of molecular sieve combinations are adhered to Surface of profile, and pore-size distribution is abundant, can
To meet the absorption to gas with various.
Embodiment 1：
The molecular sieve selected in the present embodiment is MFI type.
The present embodiment, molecular sieve adsorb the preparation method of proximate matter, specifically include following steps：
Step 1 prepares proximate matter, squeezes out silica, aluminium oxide, alumina silicate or titania powder to obtain proximate matter；
Step 2 adheres to inorganic bond such as silica gel and aluminium glue to gained Surface of profile, and MFI-type molecular sieve is passed through dipping
Method uniform adhesion obtains molecular sieve absorption proximate matter green body at Surface of profile and gap, drying；
Molecular sieve absorption proximate matter green body is dried for 600 DEG C to get molecular sieve absorbent-type step 3 in hot blast temperature
Material.
The hole road width 1.8mm of MFI-type molecular sieve proximate matter prepared by embodiment 1, high 3mm, BET surface area 200m2/ g,
Micropore size concentrates on 0.4-0.5nm.
Embodiment 2：
The step of difference from Example 1 is, proximate matter is prepared in step 1 be：Select 2-20 microns a diameter of, length
Copy paper is carried out for the mixture of 500-8000 microns of fibers, wherein the mixture of fiber is ceramic fibre, glass fibre, work
Property Carbon fibe, synthetic fibers and natural fiber mixture, be then squeezed into the paper with male and fomale(M＆F), the paper of gained male and fomale(M＆F) is viscous
Knot forms lamina on flat paper, by lamina by accumulating or being wound into proximate matter, obtains proximate matter；Before load molecular sieve,
It, can be with by pre-oxidation (inert atmosphere, 150-300 DEG C), high-temperature oxydation (inert atmosphere, 700-900 DEG C) and steam treatment
Convert the synthetic fibers or natural fiber in proximate matter, such as polyacrylonitrile, viscose rayon to activated carbon fibre；When heated-air drying
When such as needing retentive activity Carbon fibe, it need to implement under an inert atmosphere.
The hole road width 1.8mm of MFI-type molecular sieve proximate matter prepared by embodiment 2, high 3mm, BET surface area 220m2/ g,
Micropore size concentrates on 0.4-0.5nm.
Embodiment 3：
The molecular sieve that the present embodiment is selected is MFI type and BEA type molecular sieves.
The present embodiment, molecular sieve adsorb the preparation method of proximate matter, specifically include following steps：
Step 1 selects a diameter of 2-20 microns, and the mixture for the fiber that length is 500-8000 microns carries out copy paper,
In, the mixture of fiber is the mixture of ceramic fibre, glass fibre, activated carbon fibre, synthetic fibers and natural fiber, ceramics
Fiber, glass fibre and activated carbon fibre are 80 parts, and synthetic fibers and natural fiber are 10 parts, are then squeezed into recessed
The paper on convex surface, the paper of gained male and fomale(M＆F), which is bonded on flat paper, forms lamina, by lamina by accumulating or being wound into proximate matter, obtains
To proximate matter；Before load molecular sieve, by pre-oxidation (inert atmosphere, 150-300 DEG C), high-temperature oxydation (inert atmosphere, 700-
900 DEG C) and steam treatment, it can be by the synthetic fibers or natural fiber in proximate matter, such as polyacrylonitrile, viscose rayon conversion
For activated carbon fibre；
Step 2, to treated, Surface of profile adheres to inorganic bond such as silica gel and aluminium glue, by MFI type and BEA type molecules
Sieve at Surface of profile and gap, drying, obtains molecular sieve composite fibre proximate matter by infusion process uniform adhesion；
Step 2 gained molecular sieve composite fibre proximate matter is 600 DEG C in hot blast temperature and is dried and (needs to retain by step 3
When activated carbon fibre, need to implement under an inert atmosphere) adsorb proximate matter to get molecular sieve.
The hole road width 1.8mm of MFI/BEA type molecular sieve proximate matters prepared by embodiment 3, high 3mm, BET surface area are
260m2/ g, micropore size concentrate on 0.4-0.7nm.
Embodiment 4：
The molecular sieve that the present embodiment is selected is FAU types and MOR type molecular sieves.
The present embodiment, molecular sieve adsorb the preparation method of proximate matter, specifically include following steps：
Step 1 selects a diameter of 2-20 microns, and the mixture for the fiber that length is 500-8000 microns carries out copy paper,
In, the mixture of fiber is the mixture of ceramic fibre, glass fibre, activated carbon fibre, synthetic fibers and natural fiber, ceramics
Fiber and glass fibre are 80 parts, and activated carbon fibre is 40 parts, and synthetic fibers and natural fiber are 10 parts, are then squeezed into
Paper with male and fomale(M＆F), the paper of gained male and fomale(M＆F), which is bonded on flat paper, forms lamina, by lamina by accumulating or being wound into
Proximate matter obtains proximate matter；Before load molecular sieve, by pre-oxidation (inert atmosphere, 150-300 DEG C), high-temperature oxydation (indifferent gas
Atmosphere, 700-900 DEG C) and steam treatment, it can be by the synthetic fibers or natural fiber in proximate matter, as polyacrylonitrile, viscose glue are fine
Dimension etc. is converted into activated carbon fibre；
Step 2, to treated, Surface of profile adheres to inorganic bond such as silica gel and aluminium glue, by FAU types and MOR type molecules
Sieve at Surface of profile and gap, drying, obtains molecular sieve composite fibre proximate matter by infusion process uniform adhesion；
Step 2 gained molecular sieve composite fibre proximate matter is 500 DEG C in hot blast temperature and is dried and (needs to retain by step 3
When activated carbon fibre, need to implement under an inert atmosphere) adsorb proximate matter to get molecular sieve.
The hole road width 1.8mm of FAU/MOR type molecular sieve proximate matters prepared by embodiment 4, high 3mm, BET surface area are
320m2/ g, micropore size concentrate on 0.4-1.0nm.
Embodiment 5：
The molecular sieve that the present embodiment is selected is MFI type, BEA types and FAU type molecular sieves.
The present embodiment, molecular sieve adsorb the preparation method of proximate matter, specifically include following steps：
Step 1 selects a diameter of 2-20 microns, and the mixture for the fiber that length is 500-8000 microns carries out copy paper,
In, the mixture of fiber is the mixture of ceramic fibre, glass fibre, activated carbon fibre, synthetic fibers and natural fiber, ceramics
Fiber and glass fibre are 80 parts, and activated carbon fibre is 40 parts, and synthetic fibers and natural fiber are 10 parts, are then squeezed into
Paper with male and fomale(M＆F), the paper of gained male and fomale(M＆F), which is bonded on flat paper, forms lamina, by lamina by accumulating or being wound into
Proximate matter obtains proximate matter；Before load molecular sieve, by pre-oxidation (inert atmosphere, 150-300 DEG C), high-temperature oxydation (indifferent gas
Atmosphere, 700-900 DEG C) and steam treatment, it can be by the synthetic fibers or natural fiber in proximate matter, as polyacrylonitrile, viscose glue are fine
Dimension etc. is converted into activated carbon fibre；
Step 2, to treated, Surface of profile adheres to inorganic bond such as silica gel and aluminium glue, by MFI type, BEA types and FAU
Type molecular sieve at Surface of profile and gap, drying, obtains molecular sieve composite fibre proximate matter by infusion process uniform adhesion；
Step 2 gained molecular sieve composite fibre proximate matter is 400 DEG C in hot blast temperature and is dried and (needs to retain by step 3
When activated carbon fibre, need to implement under an inert atmosphere) adsorb proximate matter to get molecular sieve.
The hole road width 1.8mm of MFI/BEA/FAU type molecular sieve proximate matters prepared by embodiment 5, high 3mm, BET surface area are
280m2/ g, micropore size concentrate on 0.4-1.0nm.
Embodiment 6：
The molecular sieve that the present embodiment is selected is MFI type, BEA types, FAU types and MOR type molecular sieves.
The present embodiment, molecular sieve adsorb the preparation method of proximate matter, specifically include following steps：
Step 1 selects a diameter of 2-20 microns, and the mixture for the fiber that length is 500-8000 microns carries out copy paper,
In, the mixture of fiber is the mixture of ceramic fibre, glass fibre, activated carbon fibre, synthetic fibers and natural fiber, ceramics
Fiber and glass fibre are 80 parts, and activated carbon fibre is 40 parts, and synthetic fibers and natural fiber are 10 parts, are then squeezed into
Paper with male and fomale(M＆F), the paper of gained male and fomale(M＆F), which is bonded on flat paper, forms lamina, by lamina by accumulating or being wound into
Proximate matter obtains proximate matter；Before load molecular sieve, by pre-oxidation (inert atmosphere, 150-300 DEG C), high-temperature oxydation (indifferent gas
Atmosphere, 700-900 DEG C) and steam treatment, it can be by the synthetic fibers or natural fiber in proximate matter, as polyacrylonitrile, viscose glue are fine
Dimension etc. is converted into activated carbon fibre；
Step 2, to treated, Surface of profile adheres to inorganic bond such as silica gel and aluminium glue, by MFI type, BEA types, FAU
Type and MOR types at Surface of profile and gap, drying, obtain molecular sieve composite fibre proximate matter by spray coating method uniform adhesion；
Step 2 gained molecular sieve composite fibre proximate matter is dried for 50 DEG C to get molecule step 3 in hot blast temperature
Sieve absorption proximate matter.
The hole road width 1.8mm of MFI/BEA/FAU/MOR type molecular sieve proximate matters prepared by embodiment 6, high 3mm, the surfaces BET
Product is 300m2/ g, micropore size concentrate on 0.4-1.0nm.
It should be noted that any equivalent way that those skilled in the art are made under the introduction of this specification, or
Obvious variant should all be within the scope of the present invention.
Claims (3)
1. a kind of preparation method of molecular sieve absorption proximate matter, which is characterized in that include the following steps successively：
A, proximate matter is prepared, the preparation of proximate matter is to select a diameter of 2-20 microns, the mixing for the fiber that length is 500-8000 microns
Object carries out copy paper, is then squeezed into the paper with male and fomale(M＆F), the paper of gained male and fomale(M＆F), which is bonded on flat paper, forms lamina, by institute
It is to select in synthetic fibers or natural fiber at least that lamina, which is stated, by accumulating or being wound into proximate matter, the mixture of the fiber
It is a kind of to be mixed at least one of with ceramic fibre, glass fibre or activated carbon fibre；
B, stair oxidation, secondary oxidation and steam treatment are carried out respectively to proximate matter obtained by step a, the synthesis in proximate matter is fine
Be converted into activated carbon fibre in dimension or/and natural fiber, wherein stair oxidation be 150-300 DEG C in inertia and temperature item
What part carried out, secondary oxidation is that the condition for being 700-900 DEG C in inertia and temperature carries out；
C, adhere to inorganic bond to treated Surface of profile, by molecular sieve uniform adhesion at Surface of profile and gap, it is dry
It is dry, obtain molecular sieve absorption proximate matter green body；The molecular sieve is MFI type, the group of four kinds of BEA types, FAU types and MOR types molecular sieves
It closes；
D, it is 50-600 DEG C in hot blast temperature by molecular sieve absorption proximate matter green body obtained by step c to be dried to get molecular sieve suction
Attached proximate matter；The structure that gained molecular sieve adsorbs proximate matter is cellular, is made of several parallel channels, the height in each duct is
The width of 1-30mm, each duct are 2-60mm, specific surface area 200-400m2/g。
2. the preparation method of molecular sieve absorption proximate matter according to claim 1, it is characterised in that：In step c, inorganic bond
Agent is Ludox and Aluminum sol.
3. the preparation method of molecular sieve absorption proximate matter according to claim 1, it is characterised in that：In step c, inorganic bond
Molecular sieve is adhered to Surface of profile by agent by way of dipping, spraying or elution.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510778243.2A CN105363411B (en) | 2015-11-13 | 2015-11-13 | A kind of preparation method of molecular sieve absorption proximate matter |
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| CN201510778243.2A CN105363411B (en) | 2015-11-13 | 2015-11-13 | A kind of preparation method of molecular sieve absorption proximate matter |
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