CN109603571A - A kind of preparation method of carbon-based zeolite molecular sieve composite separation membrane - Google Patents
A kind of preparation method of carbon-based zeolite molecular sieve composite separation membrane Download PDFInfo
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- CN109603571A CN109603571A CN201811314242.2A CN201811314242A CN109603571A CN 109603571 A CN109603571 A CN 109603571A CN 201811314242 A CN201811314242 A CN 201811314242A CN 109603571 A CN109603571 A CN 109603571A
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- molecular sieve
- carbon
- zeolite molecular
- separation membrane
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- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 50
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000010457 zeolite Substances 0.000 title claims abstract description 50
- 239000012528 membrane Substances 0.000 title claims abstract description 46
- 239000002808 molecular sieve Substances 0.000 title claims abstract description 44
- 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 44
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 238000000926 separation method Methods 0.000 title claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000002425 crystallisation Methods 0.000 claims abstract description 10
- 230000008025 crystallization Effects 0.000 claims abstract description 10
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000853 adhesive Substances 0.000 claims abstract description 5
- 230000001070 adhesive effect Effects 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 239000005011 phenolic resin Substances 0.000 claims abstract description 5
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 6
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 4
- 238000003763 carbonization Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 2
- 229910004298 SiO 2 Inorganic materials 0.000 claims 2
- 239000011734 sodium Substances 0.000 claims 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- 239000003361 porogen Substances 0.000 claims 1
- 239000003610 charcoal Substances 0.000 abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 8
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052681 coesite Inorganic materials 0.000 abstract description 6
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 6
- 239000000377 silicon dioxide Substances 0.000 abstract description 6
- 229910052682 stishovite Inorganic materials 0.000 abstract description 6
- 229910052905 tridymite Inorganic materials 0.000 abstract description 6
- 238000013019 agitation Methods 0.000 abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 229910052593 corundum Inorganic materials 0.000 abstract description 4
- 239000004088 foaming agent Substances 0.000 abstract description 4
- 238000003786 synthesis reaction Methods 0.000 abstract description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract description 4
- 230000003026 anti-oxygenic effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract description 3
- 229960000935 dehydrated alcohol Drugs 0.000 description 6
- 230000001590 oxidative effect Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000004506 ultrasonic cleaning Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000001458 anti-acid effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- 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
- B01D69/12—Composite membranes; Ultra-thin 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
-
- 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
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- 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
-
- 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
- B01D71/021—Carbon
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a kind of carbon-based zeolite molecular sieve compound-split membrane preparation methods, the specific steps are that, first using phenolic resin as raw material, placement of adhesives, pore-foaming agent etc., it is to be mixed uniformly after, tubulose original film is squeezed on molding machine, and spontaneously dry, charing process is carried out, so that tubulose charcoal support membrane be made；By certain charging sequence, under agitation by Al2O3︰ SiO2︰ Na2O ︰ H2O ︰ EtOH presses certain molar ratio charging method synthesis zeolite colloidal sol；Tubulose charcoal support membrane is put into the crystallizing kettle equipped with zeolite molecular sieve colloidal sol, crystallization in baking oven is placed in, chilling is taken out, washes and dries, remove template agent removing, carbon-based zeolite molecular sieve composite separating film is made, the present invention relates to zeolite composite membrane technical fields.The preparation method makes charcoal supporting body surface in compound one layer of zeolite molecular sieve material, both can control the pore structure on carbon film surface, improves carbon membrane to the permeance property of gas, and the preferable seperation film of antioxygenic property can be made.
Description
Technical field
The present invention relates to zeolite composite membrane technical field, specially a kind of carbon-based zeolite molecular sieve composite separating film
Preparation method.
Background technique
Zeolite molecular sieve film is a kind of novel microporous inorganic material film developed in recent years, since it is with good
Chemistry and mechanical stability can reach the requirement such as high-throughput, highly selective, heat-resisting and solvent resistant, thus pay close attention to by people,
Rapidly becoming UF membrane field most has the research hotspot of application prospect.Zeolite molecular sieve has unique physics, chemical property, resistance to
It is high temperature, corrosion-resistant, especially its excellent gas separating property and the huge applications prospect in terms of membrane reactor.
Since inoranic membrane has many excellent properties, have become the composition that one, seperation film field is very important and substitutes
Part emerges the composite material of many carbon membranes at present, but the charcoal membrane aperture majority actually used is bigger than normal, leads to the separation of film
Rate is lower, and ideal separating effect is not achieved, although aperture is uniform, adjustable in addition, carbon membrane has good antiacid alkali ability
Whole, outer surface is more smooth, but its oxidation resistance is poor.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of carbon-based zeolite molecular sieve compound-split membrane preparation method,
The charcoal membrane aperture majority for solving actual use is bigger than normal, causes the separation rate of film lower, ideal separating effect is not achieved, separately
Outside, although carbon membrane have good antiacid alkali ability, aperture is uniform, can adjust, outer surface is more smooth, its oxidation resistance compared with
The problem of difference.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of carbon-based zeolite molecular sieve is compound
Membrane preparation method is separated, the specific steps are that, the preparation of (1) charcoal support membrane: first using phenolic resin as raw material, by it after oxidation
Be crushed to required granularity, by a certain percentage placement of adhesives, pore-foaming agent etc., it is to be mixed uniformly after, squeezed on molding machine
It at tubulose original film, and spontaneously dries, finally puts it into tubular type retort, carry out charing process, so that tubulose charcoal branch be made
Support film；
(2) preparation of zeolite molecular sieve colloidal sol: using silester as silicon source, aluminum sulfate is silicon source, and sodium hydroxide is alkali source,
Dehydrated alcohol is template, by certain charging sequence, under agitation by Al2O3︰ SiO2︰ Na2O ︰ H2O ︰ EtOH is by certain
Molar ratio charging method synthesis zeolite colloidal sol；
(3) carbon-based zeolite molecular sieve compound-split film preparation: tubulose charcoal support membrane is put into equipped with zeolite molecular sieve colloidal sol
Crystallizing kettle in, sealing is placed on crystallization in baking oven, takes out chilling, and with ultrasonic cleaning and drying.Then it is roasted
Burning processing, removes dehydrated alcohol template, carbon-based zeolite molecular sieve composite separating film is made.
Preferably, step (1) oxidizing condition is set as pre-oxidizing 2 hours at 180 degrees Celsius.
Preferably, the carbonization condition in the step (1) is set as under nitrogen protection with the heating of 3 centigrade per minutes
Rate carbonizes 850 degrees Celsius of final temperature, constant temperature 50 minutes.
Preferably, Al in the step (2)2O3︰ SiO2︰ Na2O ︰ H2The molar ratio of O ︰ EtOH is 1 ︰, 100 ︰, 12 ︰, 55 ︰
7500。
Preferably, in the step (2) when stirring the rate of charging feed liquid be set as 0.1 milliliter it is per second, mixing time is set
It is set to 2 hours, stirring rate is set as 1500rpm.
Preferably, oven temperature is set as 175 degrees Celsius in the step (3).
Preferably, crystallization time is set as 48 hours in the step (3).
Preferably, step (3) scavenging period is set as 10 minutes.
Preferably, step (3) drying temperature is set as 110 degrees Celsius to 120 degrees Celsius.
Preferably, step (3) roasting condition is set as first rising to the heating rate of 2 centigrade per minutes
200 degrees Celsius, constant temperature after forty minutes, then with the heating rate of 1 centigrade per minute rises to 350 degrees Celsius, constant temperature 100 minutes.
(3) beneficial effect
The present invention provides a kind of carbon-based zeolite molecular sieve compound-split membrane preparation method, have it is following the utility model has the advantages that
The present invention passes through the preparation of charcoal support membrane: first using phenolic resin as raw material, required for being crushed to after oxidation
Granularity, placement of adhesives, pore-foaming agent etc. by a certain percentage, it is to be mixed uniformly after, tubulose original film is squeezed on molding machine, and
It spontaneously dries, finally puts it into tubular type retort, carry out charing process, so that tubulose charcoal support membrane be made；
The preparation of zeolite molecular sieve colloidal sol: using silester as silicon source, aluminum sulfate is silicon source, and sodium hydroxide is alkali source, nothing
Water-ethanol is template, by certain charging sequence, under agitation by Al2O3 ︰ SiO2 ︰ Na2O ︰ H2O ︰ EtOH by certain
Molar ratio charging method synthesis zeolite colloidal sol；
Carbon-based zeolite molecular sieve compound-split film preparation: tubulose charcoal support membrane is put into the crystalline substance equipped with zeolite molecular sieve colloidal sol
Change in kettle, sealing is placed on crystallization in baking oven, takes out chilling, and with ultrasonic cleaning and drying.Then it is carried out at roasting
Reason removes dehydrated alcohol template, carbon-based zeolite molecular sieve composite separating film is made.Tubulose charcoal support membrane is put into equipped with zeolite
In the crystallizing kettle of molecular sieve colloidal sol, sealing is placed on crystallization in baking oven, takes out chilling, and with ultrasonic cleaning and drying.Then
Calcination process is carried out, dehydrated alcohol template is removed, carbon-based zeolite molecular sieve composite separating film is made, so that charcoal supporter
Surface both can control the pore structure on carbon film surface in compound one layer of zeolite molecular sieve material, improve carbon membrane to the infiltration of gas
Permeability energy, and the preferable seperation film of antioxygenic property can be made.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of technical solution: a kind of carbon-based zeolite molecular sieve compound-split membrane preparation method, specific to walk
Suddenly it is the preparation of (1) charcoal support membrane: first using phenolic resin as raw material, required granularity is crushed to after oxidation, by one
Certainty ratio placement of adhesives, pore-foaming agent etc., it is to be mixed uniformly after, tubulose original film is squeezed on molding machine, and spontaneously dry, most
After put it into tubular type retort, carry out charing process, thus be made tubulose charcoal support membrane；
(4) preparation of zeolite molecular sieve colloidal sol: using silester as silicon source, aluminum sulfate is silicon source, and sodium hydroxide is alkali source,
Dehydrated alcohol is template, by certain charging sequence, under agitation by Al2O3︰ SiO2︰ Na2O ︰ H2O ︰ EtOH is by certain
Molar ratio charging method synthesis zeolite colloidal sol；
(5) carbon-based zeolite molecular sieve compound-split film preparation: tubulose charcoal support membrane is put into equipped with zeolite molecular sieve colloidal sol
Crystallizing kettle in, sealing is placed on crystallization in baking oven, takes out chilling, and with ultrasonic cleaning and drying.Then it is roasted
Burning processing, removes dehydrated alcohol template, carbon-based zeolite molecular sieve composite separating film is made.
Step (1) oxidizing condition is set as pre-oxidizing 2 hours at 180 degrees Celsius.
Carbonization condition in step (1) is set as under nitrogen protection with the heating rate of 3 centigrade per minutes, and charing is eventually
850 degrees Celsius, constant temperature 50 minutes of temperature.
Al in step (2)2O3︰ SiO2︰ Na2O ︰ H2The molar ratio of O ︰ EtOH is 1 ︰, 100 ︰, 12 ︰, 55 ︰ 7500.
In step (2) when stirring the rate of charging feed liquid be set as 0.1 milliliter it is per second, mixing time is set as 2 hours, is stirred
It mixes rate and is set as 1500rpm.
Oven temperature is set as 175 degrees Celsius in step (3).
Crystallization time is set as 48 hours in step (3).
Step (3) scavenging period is set as 10 minutes.
Step (3) drying temperature is set as 110 degrees Celsius to 120 degrees Celsius.
Step (3) roasting condition is set as first rising to 200 degrees Celsius with the heating rate of 2 centigrade per minutes, constant temperature 40
After minute, then with the heating rate of 1 centigrade per minute rise to 350 degrees Celsius, constant temperature 100 minutes.
The preparation method makes charcoal supporting body surface in compound one layer of zeolite molecular sieve material, both can control carbon film surface
Pore structure, improve carbon membrane to the permeance property of gas, and the preferable seperation film of antioxygenic property can be made.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions.By the sentence " element limited including one, it is not excluded that including
There is also other identical elements in the process, method, article or equipment of element ".
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811314242.2A CN109603571A (en) | 2018-11-06 | 2018-11-06 | A kind of preparation method of carbon-based zeolite molecular sieve composite separation membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811314242.2A CN109603571A (en) | 2018-11-06 | 2018-11-06 | A kind of preparation method of carbon-based zeolite molecular sieve composite separation membrane |
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| CN109603571A true CN109603571A (en) | 2019-04-12 |
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| CN201811314242.2A Pending CN109603571A (en) | 2018-11-06 | 2018-11-06 | A kind of preparation method of carbon-based zeolite molecular sieve composite separation membrane |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112619442A (en) * | 2019-09-24 | 2021-04-09 | 中国石油化工股份有限公司 | Composite molecular sieve carbon film based on phenolic resin-based carbon tube as support body and preparation method and application thereof |
| CN114425245A (en) * | 2020-09-23 | 2022-05-03 | 中国石油化工股份有限公司 | Phenolic resin-based composite carbon film and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0873176B1 (en) * | 1996-01-04 | 2000-05-03 | Exxon Chemical Patents Inc. | Molecular sieves and processes for their manufacture |
-
2018
- 2018-11-06 CN CN201811314242.2A patent/CN109603571A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0873176B1 (en) * | 1996-01-04 | 2000-05-03 | Exxon Chemical Patents Inc. | Molecular sieves and processes for their manufacture |
Non-Patent Citations (1)
| Title |
|---|
| 李艳: "碳基沸石分子筛复合膜制备的研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112619442A (en) * | 2019-09-24 | 2021-04-09 | 中国石油化工股份有限公司 | Composite molecular sieve carbon film based on phenolic resin-based carbon tube as support body and preparation method and application thereof |
| CN112619442B (en) * | 2019-09-24 | 2022-11-04 | 中国石油化工股份有限公司 | Composite molecular sieve carbon film based on phenolic resin-based carbon tube as support body and preparation method and application thereof |
| CN114425245A (en) * | 2020-09-23 | 2022-05-03 | 中国石油化工股份有限公司 | Phenolic resin-based composite carbon film and preparation method and application thereof |
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