CN113842876A - Hydrophobic molecular sieve rotating wheel and preparation method thereof - Google Patents
Hydrophobic molecular sieve rotating wheel and preparation method thereof Download PDFInfo
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- CN113842876A CN113842876A CN202111290745.2A CN202111290745A CN113842876A CN 113842876 A CN113842876 A CN 113842876A CN 202111290745 A CN202111290745 A CN 202111290745A CN 113842876 A CN113842876 A CN 113842876A
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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
- B01J20/10—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
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- 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
- B01D53/06—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 with moving adsorbents, e.g. rotating beds
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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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—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 physical properties
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/50—Carbon dioxide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Abstract
The application provides a preparation method of a hydrophobic molecular sieve rotating wheel, which comprises the following steps: and a runner rolling procedure: enabling first inorganic fiber paper and second inorganic fiber paper to pass through molecular sieve slurry at a constant speed, drying, then soaking the first inorganic fiber paper and the second inorganic fiber paper in inorganic glue, carrying out hot press molding on the first inorganic fiber paper to obtain corrugated paper, bonding the second inorganic fiber paper and the corrugated paper to form a honeycomb body, and drying to obtain a runner primary body; an activation step: placing the rotating wheel primary manufactured body in a high-temperature furnace for calcining for 1-8h, wherein the calcining temperature is 200-800 ℃; and a rotating wheel machining and forming process: carrying out hydrophobic treatment on the rotating wheel primary manufactured body, and assembling the rotating wheel of the hydrophobic molecular sieve; the hydrophobic molecular sieve rotating wheel prepared according to the preparation method can be used for separating carbon dioxide.
Description
Technical Field
The application relates to the technical field of environmental protection, in particular to a hydrophobic molecular sieve rotating wheel for separating carbon dioxide and a preparation method thereof.
Background
Carbon dioxide has been widely recycled in the fields of agriculture, industry, medical treatment, etc., and the demand is gradually increasing. Meanwhile, the greenhouse effect caused by the increase of the emission of carbon dioxide in the atmosphere brings a huge crisis to the survival of the whole human, and the world countries pay more attention to the problems caused by the carbon dioxide. In the method for separating carbon dioxide, the absorption and separation of carbon dioxide by the molecular sieve rotating wheel are more and more emphasized, but the traditional molecular sieve rotating wheel easily absorbs moisture in the environment in the high-humidity absorption and separation process, so that the absorption capacity of carbon dioxide is reduced, a good carbon dioxide absorption effect cannot be achieved, and the difficulty of subsequent separation can be increased.
Therefore, there is a need for a molecular sieve wheel that can efficiently separate carbon dioxide in a high humidity environment.
Disclosure of Invention
In order to overcome the defects of the prior art, the application aims to provide the hydrophobic molecular sieve rotating wheel and the preparation method thereof, which can effectively solve the problem that the carbon dioxide cannot be efficiently separated under a high-humidity environment in the existing adsorption product.
The technical scheme of the application is as follows:
the application provides a preparation method of a hydrophobic molecular sieve rotating wheel, which comprises the following steps:
and a runner rolling procedure: enabling first inorganic fiber paper and second inorganic fiber paper to pass through molecular sieve slurry at a constant speed, drying, then soaking the first inorganic fiber paper and the second inorganic fiber paper in inorganic glue, carrying out hot press molding on the first inorganic fiber paper to obtain corrugated paper, bonding the second inorganic fiber paper and the corrugated paper to form a honeycomb body, and drying to obtain a runner primary body; an activation step: placing the rotating wheel primary manufactured body in a high-temperature furnace for calcining for 1-8h, wherein the calcining temperature is 200-800 ℃; and a rotating wheel machining and forming process: carrying out hydrophobic treatment on the rotating wheel primary manufactured body, and assembling the rotating wheel of the hydrophobic molecular sieve; the hydrophobic molecular sieve rotating wheel prepared according to the preparation method is used for separating carbon dioxide.
In a preferred embodiment of the present application, in the rolling process, the inorganic fiber paper passes through the molecular sieve slurry at a constant speed of 1 to 3 m/s.
In a preferred embodiment of the present application, in the rolling process, the molecular sieve slurry has a mass fraction of 10-15% and a viscosity of 10-15mpa · s.
In a preferred embodiment of the present application, in the wheel rolling process, the inorganic glue may be one or more of alumina sol, silica sol, sodium silicate, and aluminum silicate.
In a preferred embodiment of the present application, the temperature of the hot press forming operation is 35 to 60 ℃ in the rolling process.
In a preferred embodiment of the present application, in the runner rolling process, the flute height of the corrugated paper is 1.0-2.0mm, and the flute pitch of the corrugated paper is 0.5-2 times of the flute height.
In a preferred embodiment of the present application, the honeycomb body is dried at a temperature of 45-100 ℃ in the wheel rolling process.
In a preferred embodiment of the present application, in the activation process, the calcination time is 3-5h, and the calcination temperature is 300-.
In a preferred embodiment of the present application, in the wheel forming process, the hydrophobic treatment is a dip coating treatment of a silicone resin on the raw wheel, and the ratio of the coating amount of the silicone resin to the molecular sieve slurry is 0.1-4: 25.
The application also provides a hydrophobic molecular sieve rotating wheel, which is prepared by the preparation method of any one of the hydrophobic molecular sieve rotating wheels.
Based on the scheme, the application has at least the following advantages or progress effects:
according to the technical scheme, the hydrophobic molecular sieve rotating wheel can be prepared, the molecular sieve rotating wheel is successfully modified into the hydrophobic molecular sieve rotating wheel by dip-coating a layer of organic silicon resin, and the introduction of the organic silicon resin does not influence the performance of the molecular sieve rotating wheel, so that the prepared hydrophobic molecular sieve rotating wheel can keep high-efficiency carbon dioxide absorption capacity in a high-humidity environment.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 shows a simplified flow diagram of a process for preparing a hydrophobic molecular sieve wheel according to example 1;
FIG. 2 is a schematic diagram showing the bonding structure of two layers of the inorganic fiber paper in example 1;
FIG. 3 is a schematic diagram showing the bonding structure of a plurality of sets of composite inorganic fiber papers of example 1;
FIG. 4 shows a schematic structural diagram of a plurality of sets of composite inorganic fiber papers of example 1;
FIG. 5 is a schematic view showing the end face structure of the rotor obtained in example 1;
fig. 6 shows a schematic honeycomb formation diagram of example 1.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
Example 1
FIG. 1 shows a schematic flow chart of a method for preparing a hydrophobic molecular sieve wheel according to the present embodiment, the method comprising the steps S101-S103:
s101, rolling a runner, namely enabling inorganic fiber paper to pass through molecular sieve slurry at a constant speed, drying, dipping in inorganic glue, performing hot press molding to obtain corrugated paper, dipping and drying another layer of inorganic fiber raw paper coated on the molecular sieve in the inorganic glue, bonding the inorganic fiber raw paper with the corrugated paper to form a honeycomb body, and drying to obtain a primary runner body.
S102, an activation procedure, namely placing the primary rotor wheel manufactured body in a high-temperature furnace for calcining for 1-8h, wherein the calcining temperature is 200-800 ℃.
S103, a runner processing and forming procedure, namely performing hydrophobic treatment on the runner primary manufactured body to assemble the hydrophobic molecular sieve runner.
Fig. 2 shows a schematic diagram of the bonding structure of two layers of inorganic fiber paper in the embodiment, in fig. 2, one layer of inorganic fiber paper is formed into corrugated paper by hot pressing, and then is bonded with the other layer of inorganic fiber paper to form a group of composite inorganic fiber paper.
Fig. 3 is a schematic diagram showing the bonding structure of a plurality of sets of composite inorganic fiber papers in the present example, and in fig. 3, the corrugated paper portion of the former set of composite inorganic fiber papers is bonded with the non-corrugated paper portion of the latter set of composite inorganic fiber papers to form a honeycomb body.
Fig. 4 shows a schematic structural diagram of a plurality of sets of composite inorganic fiber paper in the present embodiment, and in fig. 4, positions of various parameters of corrugated paper, such as flute height and flute pitch, are marked. The bonding sites of the inorganic adhesive are also marked.
Fig. 5 shows a schematic diagram of the end face structure of the rotor prepared in this example, and as shown in fig. 5, the internal structure of the prepared rotor is honeycomb-shaped, has a large specific surface area, greatly increases the loading of the molecular sieve, and has excellent carbon dioxide absorption performance.
Fig. 6 shows a schematic diagram of forming a honeycomb body in the embodiment, in fig. 6, 608 first inorganic fiber paper is subjected to hot-pressing forming to form corrugated paper under the action of 609 first forming roll, the corrugated paper is then rotated with a corrugating roll 607, inorganic glue is applied through a 604 sizing rod, and the first inorganic fiber paper and 601 second inorganic fiber paper are bonded into 606 composite inorganic fiber paper under the action 605 of a second forming roll. In addition, 602 is a rubber coating roller for controlling the coating amount of the inorganic rubber, and 603 is a rubber groove for placing the inorganic rubber.
Example 2
The rolling procedure of the rotating wheel is carried out,
and a runner rolling procedure: the method comprises the steps of enabling first inorganic fiber paper and second inorganic fiber paper to pass through molecular sieve slurry with the mass fraction of 15% and the viscosity of 10mpa & s at the rate of 1m/s, drying, then soaking the first inorganic fiber paper and the second inorganic fiber paper in sodium silicate, carrying out hot press molding on the first inorganic fiber paper at the temperature of 35 ℃ to obtain corrugated paper with the corrugation height of 1.5mm, bonding the second inorganic fiber paper and the corrugated paper to form a honeycomb body, and drying at the temperature of 60 ℃ to obtain a primary runner body.
An activation step: placing the rotating wheel primary manufactured body in a high-temperature furnace for calcining for 1-8h, wherein the calcining temperature is 200-800 ℃;
and a rotating wheel machining and forming process: carrying out hydrophobic treatment on the rotating wheel primary manufactured body, and assembling the rotating wheel of the hydrophobic molecular sieve;
the preparation method comprises the steps of enabling inorganic fiber paper to pass through a molecular sieve slurry with the mass fraction of 15% and the viscosity of 10mpa & s at the rate of 1m/s, drying, soaking in sodium silicate, carrying out hot press molding at 35 ℃ to obtain corrugated paper with the edge height of 1.5mm, soaking and drying another layer of inorganic fiber base paper coated on the molecular sieve in the sodium silicate, bonding the inorganic fiber base paper with the corrugated paper to form a honeycomb body, and drying at the temperature of 60 ℃ to obtain a runner primary product.
And an activation procedure, namely placing the rotating wheel primary manufactured body in a high-temperature furnace for calcining for 4 hours, wherein the calcining temperature is 500 ℃.
And a rotating wheel processing and forming procedure, wherein dip-coating treatment of organic silicon resin is carried out on the rough rotating wheel body, and the mass ratio of the coating amount of the organic silicon resin to the molecular sieve slurry is 0.5: 25.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A method of making a hydrophobic molecular sieve wheel, the method comprising:
and a runner rolling procedure: enabling first inorganic fiber paper and second inorganic fiber paper to pass through molecular sieve slurry at a constant speed, drying, then soaking the first inorganic fiber paper and the second inorganic fiber paper in inorganic glue, carrying out hot press molding on the first inorganic fiber paper to obtain corrugated paper, bonding the second inorganic fiber paper and the corrugated paper to form a honeycomb body, and drying to obtain a runner primary body;
an activation step: placing the rotating wheel primary manufactured body in a high-temperature furnace for calcining for 1-8h, wherein the calcining temperature is 200-800 ℃;
and a rotating wheel machining and forming process: carrying out hydrophobic treatment on the rotating wheel primary manufactured body, and assembling the rotating wheel of the hydrophobic molecular sieve;
the hydrophobic molecular sieve rotating wheel prepared according to the preparation method is used for separating carbon dioxide.
2. The method for preparing the inorganic fiber paper of claim 1, wherein the first inorganic fiber paper and the second inorganic fiber paper pass through the molecular sieve slurry at a constant speed of 1 to 3m/s in the rolling process.
3. The method of claim 1, wherein the molecular sieve slurry has a mass fraction of 10-15% and a viscosity of 10-15 mpa-s in the rolling process.
4. The method as claimed in claim 1, wherein the inorganic glue is one or more of alumina sol, silica sol, sodium silicate and aluminum silicate in the wheel rolling process.
5. The manufacturing method according to claim 1, wherein the temperature of the hot press forming operation in the rolling process is 35 to 60 ℃.
6. The method for preparing the corrugated paper as claimed in claim 1, wherein in the wheel rolling process, the flute height of the corrugated paper is 1.0 to 2.0mm, and the flute pitch of the corrugated paper is 0.5 to 2 times of the flute height.
7. The method of claim 1 wherein the honeycomb body is dried at a temperature of 45-100 ℃ during the wheel rolling step.
8. The method as claimed in claim 1, wherein in the activation step, the calcination time is 3-5h, and the calcination temperature is 300-500 ℃.
9. The method according to claim 1, wherein the hydrophobic treatment is a dip coating treatment of a silicone resin on the rotor raw body in the rotor molding step, and a ratio of the amount of the silicone resin applied to the molecular sieve slurry is 0.1 to 4: 25.
10. A hydrophobic molecular sieve wheel, characterized by being prepared according to the preparation method of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111290745.2A CN113842876A (en) | 2021-11-02 | 2021-11-02 | Hydrophobic molecular sieve rotating wheel and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111290745.2A CN113842876A (en) | 2021-11-02 | 2021-11-02 | Hydrophobic molecular sieve rotating wheel and preparation method thereof |
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| CN113842876A true CN113842876A (en) | 2021-12-28 |
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Citations (5)
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| CN108452638A (en) * | 2017-12-28 | 2018-08-28 | 杭州捷瑞空气处理设备有限公司 | A kind of preparation method of hydrophobic molecule sieve runner |
| CN208406523U (en) * | 2017-12-28 | 2019-01-22 | 杭州捷瑞空气处理设备有限公司 | A kind of hydrophobic molecule sieve runner |
| JP2020066830A (en) * | 2018-10-24 | 2020-04-30 | オリベスト株式会社 | Low density fiber paper containing hydrophobic nanofiber |
| CN111617749A (en) * | 2020-07-02 | 2020-09-04 | 江苏博霖环保科技有限公司 | Preparation method of honeycomb molecular sieve adsorption section bar |
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2021
- 2021-11-02 CN CN202111290745.2A patent/CN113842876A/en active Pending
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| CN107051375A (en) * | 2017-03-24 | 2017-08-18 | 佛山市南海依泰科空气处理设备有限公司 | A kind of desiccant wheel and preparation method thereof |
| CN108452638A (en) * | 2017-12-28 | 2018-08-28 | 杭州捷瑞空气处理设备有限公司 | A kind of preparation method of hydrophobic molecule sieve runner |
| CN208406523U (en) * | 2017-12-28 | 2019-01-22 | 杭州捷瑞空气处理设备有限公司 | A kind of hydrophobic molecule sieve runner |
| JP2020066830A (en) * | 2018-10-24 | 2020-04-30 | オリベスト株式会社 | Low density fiber paper containing hydrophobic nanofiber |
| CN111617749A (en) * | 2020-07-02 | 2020-09-04 | 江苏博霖环保科技有限公司 | Preparation method of honeycomb molecular sieve adsorption section bar |
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