CN113070048A - CO based on paper pulp molding substrate2Method for preparing adsorbent - Google Patents
CO based on paper pulp molding substrate2Method for preparing adsorbent Download PDFInfo
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- CN113070048A CN113070048A CN202110352796.7A CN202110352796A CN113070048A CN 113070048 A CN113070048 A CN 113070048A CN 202110352796 A CN202110352796 A CN 202110352796A CN 113070048 A CN113070048 A CN 113070048A
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- 238000000465 moulding Methods 0.000 title claims abstract description 50
- 229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 48
- 239000003463 adsorbent Substances 0.000 title claims abstract description 46
- 239000011347 resin Substances 0.000 claims abstract description 42
- 229920005989 resin Polymers 0.000 claims abstract description 42
- 239000002245 particle Substances 0.000 claims abstract description 33
- 239000000758 substrate Substances 0.000 claims abstract description 31
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000001035 drying Methods 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 21
- 238000002360 preparation method Methods 0.000 claims abstract description 20
- 239000004677 Nylon Substances 0.000 claims abstract description 15
- 229920001778 nylon Polymers 0.000 claims abstract description 15
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 15
- 239000010893 paper waste Substances 0.000 claims abstract description 12
- 239000008367 deionised water Substances 0.000 claims abstract description 11
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 11
- 238000000227 grinding Methods 0.000 claims abstract description 11
- 238000012216 screening Methods 0.000 claims abstract description 11
- 238000002791 soaking Methods 0.000 claims abstract description 11
- 238000005406 washing Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 10
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000018044 dehydration Effects 0.000 claims abstract description 9
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 9
- 239000003456 ion exchange resin Substances 0.000 claims abstract description 9
- 229920003303 ion-exchange polymer Polymers 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000003957 anion exchange resin Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000005342 ion exchange Methods 0.000 abstract 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 32
- 229910002092 carbon dioxide Inorganic materials 0.000 description 21
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 16
- 239000001569 carbon dioxide Substances 0.000 description 16
- 238000001179 sorption measurement Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 3
- 238000003795 desorption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
-
- 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
-
- 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
- B01J20/2803—Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products
-
- 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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3007—Moulding, shaping or extruding
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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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3021—Milling, crushing or grinding
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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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3071—Washing or leaching
-
- 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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3234—Inorganic material layers
- B01J20/3236—Inorganic material layers containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/25—Coated, impregnated or composite adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
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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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- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
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- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a preparation method of a CO2 adsorbent based on a pulp molding substrate, comprising the following steps of crushing waste paper recycled from the market into pulp by a special pulper; soaking the ion exchange resin particles in 0.5mol/L sodium carbonate solution for ion exchange, washing with deionized water, and drying at room temperature; step three, drying the resin particles, grinding and screening the resin particles into resin powder; step four, adding resin powder into the paper pulp and uniformly stirring to obtain a mixture; laying a layer of nylon net on a pulp molding forming machine, adsorbing the obtained mixture on a pulp molding die by utilizing the vacuum suction effect, drying or airing after vacuum dehydration molding to obtain a product, namely the CO2 adsorbent taking the pulp molding as a substrate; the preparation method of the invention takes the paper pulp with low price as the substrate and utilizes the nylon net to increase the mechanical property of the paper pulp. The adsorbent has the advantages of low cost, simple and easy preparation process, easily obtained raw materials, environmental protection, no pollution and the like.
Description
Technical Field
The invention relates to CO2A preparation method of the adsorbent, in particular to CO based on a pulp molding substrate2A preparation method of the adsorbent.
Background
CO2Capture technology is currently recognized as CO2One of effective means for emission reduction is to research and develop a novel efficient, low-cost and low-energy-consumption adsorbent which is CO2The key to the capture technique. In recent years, wet regeneration of CO2The adsorbent is gradually paid attention, and the technology generally adopts a wet-regenerated anion exchange resin heterogeneous membrane as an adsorption membrane, but the heterogeneous membrane has high cost and is not suitable for large-scale application.
Disclosure of Invention
In order to solve the above problems, it is an object of the present invention to provide a CO based pulp molded substrate2The preparation method of the adsorbent is characterized in that the CO which is cheap in raw material, economical and environment-friendly and prepared by mixing the ion exchange resin powder and the paper pulp2An adsorbent.
In order to achieve the purpose, the invention adopts the following technical scheme:
crushing waste paper recycled in the market into paper pulp by using a pulper to obtain standby paper pulp;
soaking the ion exchange resin particles in a sodium carbonate solution, fully stirring for 3 hours, washing with deionized water, repeating the step for 3 times, and drying the resin particles at room temperature;
grinding and screening the dried resin particles into resin powder;
step four, adding resin powder into the standby paper pulp and uniformly stirring to obtain a mixture;
and step five, paving the nylon net on a pulp molding machine, and adsorbing the mixture on a pulp molding die by utilizing the vacuum suction effect. Vacuum dewatering, forming, drying or airing to obtain the product CO based on pulp molding2An adsorbent.
Preferably, in the step one, the pulp concentration needs to be adjusted to 0.5-1% by mass concentration by adding water.
Preferably, in step two, the concentration of the sodium carbonate solution is 0.5 mol/L.
Preferably, in step two, the ion exchange resin is an anion exchange resin.
Preferably, in the second step, the mass ratio of the ion exchange resin to the sodium carbonate solution is 1: 5-1: 15.
Preferably, in the third step, the mesh number of the resin powder is 100 to 500 meshes.
Preferably, in the fourth step, the mass ratio of the added resin powder to the raw material pulp before being mixed with water is 1: 1-1: 2.
Preferably, in the fifth step, the size of the nylon mesh is 100-500 μm.
Compared with the prior art, the invention has the following advantages:
(1) the base in the preparation method is paper pulp, the raw material is taken from waste paper, the source is wide, the preparation process is finished by the working procedures of pulping, adsorption molding, drying and shaping and the like, and the preparation method is harmless to the environment.
(2) The paper pulp molding is easy to form, can be molded into any shape, meets various requirements, and is convenient to store and transport.
(3) The paper pulp can firmly bond the resin powder and is not easy to fall off, and the nylon net can improve the mechanical property of the adsorbent.
Drawings
Fig. 1 is a test result of a carbon dioxide adsorption and desorption test performed on the carbon dioxide adsorbent obtained in example 1 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples below:
the present embodiment 1 relates toCO based on paper pulp molding substrate2The preparation method of the adsorbent comprises the following steps:
crushing 1 mass unit of waste paper recovered from the market into paper pulp by using a special pulper, and adjusting the concentration of the paper pulp by adding water to the mass concentration of 0.5% to obtain standby paper pulp;
step two, soaking 1 mass unit of D201 macroporous styrene anion exchange resin particles in 10 mass units of 0.5mol/L sodium carbonate solution, fully stirring for 3 hours, then washing with deionized water, repeating the step for 3 times, and drying the resin particles at room temperature;
step three, grinding and screening the dried resin particles into powder of 100 meshes;
adding 1 mass unit of resin powder into the paper pulp and uniformly stirring to obtain a mixture;
step five, paving a nylon net with the mesh size of 100 mu m on a pulp molding forming machine, adsorbing the mixture on a pulp molding die by utilizing the vacuum suction effect, drying or airing after vacuum dehydration molding to obtain a product, namely CO taking the pulp molding as a substrate2An adsorbent.
Example 2 relates to a CO based pulp molded substrate2The preparation method of the adsorbent comprises the following steps:
crushing 1 mass unit of waste paper (cartons, books, newspapers and the like) recovered from the market into paper pulp by using a special pulper, and adjusting the concentration of the paper pulp by adding water to the mass concentration of 0.5% to obtain standby paper pulp;
step two, soaking 1 mass unit of D201 macroporous styrene anion exchange resin particles in 10 mass units of 0.5mol/L sodium carbonate solution, fully stirring for 3 hours, then washing with deionized water, repeating the step for 3 times, and drying the resin particles at room temperature;
step three, grinding and screening the dried resin particles into powder of 100 meshes;
adding 1 mass unit of resin powder into the paper pulp and uniformly stirring to obtain a mixture;
step five, enlarging the meshesSpreading 330 μm nylon net on pulp molding machine, adsorbing the mixture on pulp molding mold by vacuum suction, vacuum dewatering, oven drying or air drying to obtain product CO with pulp molding as substrate2An adsorbent.
Example 3 relates to a CO based pulp molded substrate2The preparation method of the adsorbent comprises the following steps:
crushing 1 mass unit of waste paper (cartons, books, newspapers and the like) recovered from the market into paper pulp by using a special pulper, and adjusting the concentration of the paper pulp by adding water to the mass concentration of 0.5% to obtain standby paper pulp;
step two, soaking 1 mass unit of D201 macroporous styrene anion exchange resin particles in 10 mass units of 0.5mol/L sodium carbonate solution, fully stirring for 3 hours, then washing with deionized water, repeating the step for 3 times, and drying the resin particles at room temperature;
step three, grinding and screening the dried resin particles into powder of 100 meshes;
adding 1 mass unit of resin powder into the paper pulp and uniformly stirring to obtain a mixture;
step five, paving a nylon net with the mesh size of 500 mu m on a pulp molding forming machine, adsorbing the mixture on a pulp molding die by utilizing the vacuum suction effect, drying or airing after vacuum dehydration molding to obtain a product, namely CO taking the pulp molding as a substrate2An adsorbent.
Example 4 relates to a CO based pulp molded substrate2The preparation method of the adsorbent comprises the following steps:
crushing waste paper (cartons, books, newspapers and the like) recycled from the market in 2 mass units into paper pulp by using a special pulper, and adjusting the concentration of the paper pulp by adding water to the mass concentration of 0.5% to obtain standby paper pulp;
soaking 2 mass units of D201 macroporous styrene anion exchange resin particles in 30 mass units of 0.5mol/L sodium carbonate solution, fully stirring for 3 hours, washing with deionized water, repeating the step for 3 times, and drying the resin particles at room temperature;
step three, grinding and screening the dried resin particles into 280-mesh powder;
adding 2 mass units of resin powder into the paper pulp and uniformly stirring to obtain a mixture;
step five, paving a nylon net with the mesh size of 100 mu m on a pulp molding forming machine, adsorbing the mixture on a pulp molding die by utilizing the vacuum suction effect, drying or airing after vacuum dehydration molding to obtain a product, namely CO taking the pulp molding as a substrate2An adsorbent.
Example 5 relates to a CO based pulp molded substrate2The preparation method of the adsorbent comprises the following steps:
crushing 3 mass units of waste paper (cartons, books, newspapers and the like) recovered from the market into paper pulp by using a special pulper, and adjusting the concentration of the paper pulp by adding water to the mass concentration of 0.5% to obtain standby paper pulp;
soaking 3 mass units of D201 macroporous styrene anion exchange resin particles in 60 mass units of 0.5mol/L sodium carbonate solution, fully stirring for 3 hours, washing with deionized water, repeating the step for 3 times, and drying the resin particles at room temperature;
step three, grinding and screening the dried resin particles into 400-mesh powder;
adding 3 mass units of resin powder into the paper pulp and uniformly stirring to obtain a mixture;
step five, paving a nylon net with the mesh size of 500 mu m on a pulp molding forming machine, adsorbing the mixture on a pulp molding die by utilizing the vacuum suction effect, drying or airing after vacuum dehydration molding to obtain a product, namely CO taking the pulp molding as a substrate2An adsorbent.
Example 6 relates to a CO based pulp molded substrate2The preparation method of the adsorbent comprises the following steps:
crushing 3 mass units of waste paper (cartons, books, newspapers and the like) recovered from the market into paper pulp by using a special pulper, and adjusting the concentration of the paper pulp by adding water to the mass concentration of 0.5% to obtain standby paper pulp;
soaking 3 mass units of D201 macroporous styrene anion exchange resin particles in 60 mass units of 0.5mol/L sodium carbonate solution, fully stirring for 3 hours, washing with deionized water, repeating the step for 3 times, and drying the resin particles at room temperature;
step three, grinding and screening the dried resin particles into powder of 500 meshes;
adding 3 mass units of resin powder into the paper pulp and uniformly stirring to obtain a mixture;
step five, paving a nylon net with the mesh size of 100 mu m on a pulp molding forming machine, adsorbing the mixture on a pulp molding die by utilizing the vacuum suction effect, drying or airing after vacuum dehydration molding to obtain a product, namely CO taking the pulp molding as a substrate2An adsorbent.
Example 7 relates to a CO based pulp molded substrate2The preparation method of the adsorbent comprises the following steps:
crushing 3 mass units of waste paper (cartons, books, newspapers and the like) recovered from the market into paper pulp by using a special pulper, and adjusting the concentration of the paper pulp by adding water to the mass concentration of 0.5% to obtain standby paper pulp;
soaking 3 mass units of D201 macroporous styrene anion exchange resin particles in 60 mass units of 0.5mol/L sodium carbonate solution, fully stirring for 3 hours, washing with deionized water, repeating the step for 3 times, and drying the resin particles at room temperature;
step three, grinding and screening the dried resin particles into powder of 500 meshes;
adding 3 mass units of resin powder into the paper pulp and uniformly stirring to obtain a mixture;
step five, paving a nylon net with the mesh size of 300 mu m on a pulp molding forming machine, adsorbing the mixture on a pulp molding die by utilizing the vacuum suction effect, drying or airing after vacuum dehydration molding to obtain a product, namely CO taking the pulp molding as a substrate2An adsorbent.
This example 8 relates to a CO based pulp molded substrate2The preparation method of the adsorbent comprises the following steps:
crushing 3 mass units of waste paper (cartons, books, newspapers and the like) recovered from the market into paper pulp by using a special pulper, and adjusting the concentration of the paper pulp by adding water to the mass concentration of 0.5% to obtain standby paper pulp;
soaking 3 mass units of D201 macroporous styrene anion exchange resin particles in 60 mass units of 0.5mol/L sodium carbonate solution, fully stirring for 3 hours, washing with deionized water, repeating the step for 3 times, and drying the resin particles at room temperature;
step three, grinding and screening the dried resin particles into powder of 500 meshes;
adding 3 mass units of resin powder into the paper pulp and uniformly stirring to obtain a mixture;
step five, paving a nylon net with the mesh size of 500 mu m on a pulp molding forming machine, adsorbing the mixture on a pulp molding die by utilizing the vacuum suction effect, drying or airing after vacuum dehydration molding to obtain a product, namely CO taking the pulp molding as a substrate2An adsorbent.
Fig. 1 is a test result of a carbon dioxide adsorption and desorption test performed on the carbon dioxide adsorbent obtained in example 1. In fig. 1, the carbon dioxide concentration is shown as a circular data point and the air humidity, i.e., water vapor content, is shown as a square data point. And adsorbing carbon dioxide saturated by the carbon dioxide adsorbent in dry air, and then putting the carbon dioxide adsorbent into a sealed cavity filled with the dry air. Increasing the humidity of the sealed cavity, wherein the resin-based carbon dioxide adsorbent begins to desorb carbon dioxide, and the concentration of the carbon dioxide in the sealed cavity rapidly rises along with the increase of the humidity; the humidity in the sealing cavity is reduced, the carbon dioxide adsorbent starts to adsorb carbon dioxide, and the concentration of the carbon dioxide is also rapidly reduced along with the reduction of the humidity in the sealing cavity. Tests show that the invention provides a preparation method of a carbon dioxide adsorbent based on a pulp molding substrate, and the carbon dioxide adsorbent with cheap raw materials, economy and environmental protection is prepared by mixing ion exchange resin powder with pulp.
Claims (8)
1. A preparation method of a CO2 adsorbent based on a pulp molding substrate is characterized by comprising the following steps: the preparation method comprises the following steps:
crushing waste paper recycled in the market into paper pulp by using a pulper to obtain standby paper pulp;
soaking the ion exchange resin particles in a sodium carbonate solution, fully stirring for 3 hours, washing with deionized water, repeating the step for 3 times, and drying the resin particles at room temperature;
grinding and screening the dried resin particles into resin powder;
step four, adding resin powder into the standby paper pulp and uniformly stirring to obtain a mixture;
and step five, paving the nylon net on a pulp molding machine, and adsorbing the mixture on a pulp molding die by utilizing the vacuum suction effect. And (3) drying or airing after vacuum dehydration forming to obtain the product, namely the CO2 adsorbent taking pulp molding as the substrate.
2. The method for preparing a CO2 adsorbent based on a pulp-molded substrate according to claim 1, wherein: in the first step, the pulp concentration needs to be adjusted to 0.5-1% by adding water.
3. The method for preparing a CO2 adsorbent based on a pulp-molded substrate according to claim 1, wherein: in the second step, the concentration of the sodium carbonate solution is 0.5 mol/L.
4. The method for preparing a CO2 adsorbent based on a pulp-molded substrate according to claim 1, wherein: in the second step, the ion exchange resin is an anion exchange resin.
5. The method for preparing a CO2 adsorbent based on a pulp-molded substrate according to claim 1, wherein: in the second step, the mass ratio of the ion exchange resin to the sodium carbonate solution is 1: 5-1: 15.
6. The method for preparing a CO2 adsorbent based on a pulp-molded substrate according to claim 1, wherein: in the third step, the mesh number of the resin powder is 100-500 meshes.
7. The method for preparing a CO2 adsorbent based on a pulp-molded substrate according to claim 1, wherein: in the fourth step, the mass ratio of the added resin powder to the raw material paper pulp before being mixed with water is 1: 1-1: 2.
8. The method for preparing a CO2 adsorbent based on a pulp-molded substrate according to claim 1, wherein: in the fifth step, the size of the nylon mesh is 100-500 μm.
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