CN117920138A - Preparation method of carbon adsorption microcapsule - Google Patents
Preparation method of carbon adsorption microcapsule Download PDFInfo
- Publication number
- CN117920138A CN117920138A CN202410055082.3A CN202410055082A CN117920138A CN 117920138 A CN117920138 A CN 117920138A CN 202410055082 A CN202410055082 A CN 202410055082A CN 117920138 A CN117920138 A CN 117920138A
- Authority
- CN
- China
- Prior art keywords
- liquid
- shell material
- microcapsule
- adsorbent solution
- capsule shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003094 microcapsule Substances 0.000 title claims abstract description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 27
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 57
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000003463 adsorbent Substances 0.000 claims abstract description 38
- 239000011257 shell material Substances 0.000 claims abstract description 37
- 239000002775 capsule Substances 0.000 claims abstract description 30
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 23
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 238000010008 shearing Methods 0.000 claims abstract description 6
- 238000005286 illumination Methods 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 14
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000000016 photochemical curing Methods 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000002250 absorbent Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—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
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
- B01J19/122—Incoherent waves
- B01J19/126—Microwaves
-
- 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
- B01J20/28016—Particle form
- B01J20/28021—Hollow particles, e.g. hollow spheres, microspheres or cenospheres
-
- 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
-
- 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
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a preparation method of a carbon adsorption microcapsule, and relates to the technical field of microcapsule preparation. The invention comprises injecting a carbon dioxide adsorbent solution into an inner liquid tube of a coaxial needle assembly; injecting the liquid capsule shell material into an outer liquid pipe of the coaxial needle head assembly; controlling the flow of the adsorbent solution and the shell material so that the adsorbent solution forms micro-droplets wrapped by the liquid shell material under the flow shearing action of the liquid shell material; finally, the micro-droplets are irradiated through illumination equipment, so that the liquid capsule shell material is solidified, and the carbon adsorption microcapsule with the solid capsule shell coating the adsorbent solution is obtained. According to the invention, the carbon dioxide adsorbent solution is wrapped by the photo-curing resin material, and the photo-curing is carried out to form the carbon adsorption microcapsule, so that carbon dioxide can be adsorbed in various environments by utilizing the carbon adsorption microcapsule, the use mode is simpler and more convenient, and the flexibility and adaptability of the carbon dioxide adsorbent in use are effectively improved.
Description
Technical Field
The invention belongs to the technical field of microcapsule preparation, and particularly relates to a preparation method of a carbon adsorption microcapsule.
Background
The goal of carbon adsorption and storage technology is to remove carbon dioxide from large, point-of-sale sources such as power plants. The existing carbon dioxide capturing method mainly comprises the following steps: solvent absorption, physical adsorption, membrane separation, O2 catalytic combustion, and the like. The solvent absorption method is widely applied to the emission sources of natural gas, refinery gas, synthetic gas, flue gas and the like.
The solvent absorption method generally adopts an absorbent to absorb carbon dioxide, and the absorbent for absorbing carbon dioxide is mostly an amine solvent, and the amine solvent has the defects of complicated treatment process, high cost and toxic byproducts.
Meanwhile, the existing method for directly absorbing carbon dioxide through the absorbent has a plurality of defects, and has more limitations on the use mode and the use condition, so that the flexibility and the adaptability of carbon absorption are poor.
Disclosure of Invention
The invention aims to provide a preparation method of a carbon adsorption microcapsule, which is characterized in that a carbon dioxide adsorbent solution is wrapped by a photo-curing resin material to form the carbon adsorption microcapsule by utilizing a coaxial flow focusing technology, so that the problems of poor use flexibility and adaptability of the existing adsorbent are solved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a preparation method of a carbon adsorption microcapsule, which comprises the following steps:
step one: injecting a carbon dioxide adsorbent solution into an inner liquid tube of the coaxial needle assembly;
Step two: injecting the liquid capsule shell material into an outer liquid pipe of the coaxial needle head assembly; wherein the capsule shell material is a light-cured resin material;
step three: controlling the flow rate of the adsorbent solution to be Qi and controlling the flow rate of the capsule shell material to be Qf, so that the adsorbent solution flows out from an outlet of an outer liquid pipe under the flow shearing action of the liquid capsule shell material and forms micro-droplets wrapped by the liquid capsule shell material;
Step four: and (3) arranging illumination equipment below the outlet of the outer liquid pipe, and irradiating the micro-droplets to solidify the liquid capsule shell material and obtain the carbon adsorption microcapsule with the solid capsule shell wrapping the adsorbent solution.
As a preferred embodiment of the present invention, the adsorbent solution is a carbonate solution.
As a preferable technical scheme of the invention, the flow ratio between the adsorbent solution flow Q i and the capsule shell material flow Qf is 1:1.
As a preferable technical scheme of the invention, the flow Q i of the adsorbent solution and the flow Qf of the capsule shell material are both 10-20 ml/h.
As a preferable embodiment of the present invention, the carbon adsorption microcapsules have an outer diameter of 400 μm to 800. Mu.m.
As a preferred embodiment of the present invention, the coaxial needle assembly further comprises a liquid outlet tube connected to the outlet end of the outer liquid tube.
As a preferable technical scheme of the invention, the liquid outlet pipe is made of non-light-transmitting materials.
The invention has the following beneficial effects:
According to the invention, the carbon dioxide adsorbent solution is wrapped by the photo-curing resin material by utilizing the coaxial flow focusing technology, and the carbon adsorption microcapsule is formed by photo-curing, so that the carbon adsorption microcapsule can be utilized to adsorb carbon dioxide in various environments, the use mode is simpler and more convenient, and the flexibility and adaptability of the carbon dioxide adsorbent in use are effectively improved.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of a coaxial needle assembly based on the coaxial flow focusing technique of the present invention;
in the drawings, the list of components represented by the various numbers is as follows:
1-inner liquid pipe, 2-outer liquid pipe, 3-liquid outlet pipe and 201-outlet end.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Example 1
Referring to fig. 1, the present invention is a method for preparing a carbon adsorption microcapsule, comprising the following steps:
step one: the carbon dioxide adsorbent solution is injected into the inner liquid tube 1 of the coaxial needle assembly. Specifically, the adsorbent solution is a carbonate solution, such as sodium carbonate solution. The adsorbent solution is injected into the inner liquid tube 1 of the coaxial needle assembly through a pump and a pipeline, and flows out from the lower end of the inner liquid tube 1.
Step two: the liquid capsule shell material is injected into the outer liquid tube 2 of the coaxial needle assembly. Specifically, the capsule shell material is a light-cured resin material; the inner liquid pipe 1 is sleeved inside the outer liquid pipe 2, the lower end of the outer liquid pipe 2 is in a necking shape from inside to outside, and the inner liquid pipe 1 and the outer liquid pipe 2 are coaxially arranged, so that liquid capsule shell materials rapidly flow out at the outlet end 201, and the liquid outlet port of the inner liquid pipe 1 is positioned at the outlet end 201, so that the capsule shell materials realize shearing action on carbon dioxide adsorbent solution flowing out of the inner liquid pipe 1 when the liquid outlet port of the inner liquid pipe 1 rapidly ejects.
Step three: controlling the flow rate of the adsorbent solution to be Qi and controlling the flow rate of the capsule shell material to be Qf, so that the adsorbent solution flows out from the outlet of the outer liquid pipe 2 under the flow shearing action of the liquid capsule shell material and forms micro-droplets wrapped by the liquid capsule shell material;
Wherein, the flow ratio between the adsorbent solution flow Q i and the shell material flow Qf is 1:1, for example, the adsorbent solution flow Q i and the shell material flow Qf are both 10-20 ml/h, and concretely, qi and Qf can be 12m l/h, 15m l/h or 18m l/h.
Step four: and an illumination device is arranged below the outlet of the outer liquid pipe 2, and irradiates the micro-droplets, so that the liquid capsule shell material is solidified, and the carbon adsorption microcapsule in which the solid capsule shell wraps the adsorbent solution is obtained. Wherein the carbon adsorption microcapsules have an outer diameter of 400 μm to 800 μm, such as 500 μm or 600 μm, etc.
The carbon dioxide adsorbent solution is prepared into the microcapsule form wrapped by the photo-curing resin material, so that the limitation of the carbon dioxide adsorbent solution in the application process is overcome, the carbon dioxide adsorbent solution is convenient to apply to various carbon dioxide adsorption scenes, the use mode is simpler and more convenient, and the flexibility and the adaptability of the carbon dioxide adsorbent are effectively improved.
Example two
On the basis of the first embodiment, the coaxial needle assembly further comprises a liquid outlet tube 3 connected to the outlet end 201 of the outer liquid tube 2. And, drain pipe 3 is non-printing opacity material, wherein, the internal diameter of drain pipe 3 is greater than the internal diameter of exit end 201, make liquid capsule shell material flow the shearing to the core through drain pipe 3, cut carbon dioxide adsorbent solution into single liquid drop after having one section steady whereabouts state in drain pipe 3, set up the drain pipe 3 to non-printing opacity material for illumination equipment can not shine the exit end 201 of outer liquid pipe 2, avoid when the microdroplet does not fully form, cause the capsule shell material to produce the solidification, and influence the microdroplet formation, the condition that leads to carbon adsorption microcapsule preparation quality to drop takes place, thereby can make the carbon adsorption microcapsule form of preparation keep even rule.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (7)
1. A method for preparing carbon adsorption microcapsules, which is characterized by comprising the following steps:
step one: injecting a carbon dioxide adsorbent solution into an inner liquid tube of the coaxial needle assembly;
Step two: injecting the liquid capsule shell material into an outer liquid pipe of the coaxial needle head assembly; wherein the capsule shell material is a light-cured resin material;
step three: controlling the flow rate of the adsorbent solution to be Qi and controlling the flow rate of the capsule shell material to be Qf, so that the adsorbent solution flows out from an outlet of an outer liquid pipe under the flow shearing action of the liquid capsule shell material and forms micro-droplets wrapped by the liquid capsule shell material;
Step four: and (3) arranging illumination equipment below the outlet of the outer liquid pipe, and irradiating the micro-droplets to solidify the liquid capsule shell material and obtain the carbon adsorption microcapsule with the solid capsule shell wrapping the adsorbent solution.
2. The method of claim 1, wherein the adsorbent solution is a carbonate solution.
3. The method for preparing a carbon adsorption microcapsule according to claim 1 or 2, wherein the flow ratio between the adsorbent solution flow Qi and the shell material flow Qf is 1:1.
4. A method of preparing a carbon adsorption microcapsule according to claim 3, wherein the adsorbent solution flow Qi and the shell material flow Qf are both 10-20 ml/h.
5. The method for producing a carbon adsorbing microcapsule according to claim 4, wherein the outer diameter of the carbon adsorbing microcapsule is 400 μm to 800 μm.
6. The method of claim 1, wherein the coaxial needle assembly further comprises a liquid outlet tube connected to the outlet end of the outer liquid tube.
7. The method of claim 6, wherein the liquid outlet tube is made of a non-light-transmitting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410055082.3A CN117920138A (en) | 2024-01-15 | 2024-01-15 | Preparation method of carbon adsorption microcapsule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410055082.3A CN117920138A (en) | 2024-01-15 | 2024-01-15 | Preparation method of carbon adsorption microcapsule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117920138A true CN117920138A (en) | 2024-04-26 |
Family
ID=90764213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410055082.3A Pending CN117920138A (en) | 2024-01-15 | 2024-01-15 | Preparation method of carbon adsorption microcapsule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117920138A (en) |
-
2024
- 2024-01-15 CN CN202410055082.3A patent/CN117920138A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102006899B (en) | Adsorbent for the removal of blood cells | |
| US11148114B2 (en) | Composite 3D-printed reactors for gas absorption, purification, and reaction | |
| KR101521864B1 (en) | an apparatus for trapping carbon dioxide | |
| CN105013357B (en) | Polymer-embedded metal organic framework film, and preparation method, device and application thereof | |
| CN117920138A (en) | Preparation method of carbon adsorption microcapsule | |
| DE102012220536A1 (en) | EXHAUST SYSTEM FOR INTERNAL COMBUSTION ENGINE | |
| CN109364760A (en) | A kind of takeup type hyperfiltration membrane assembly and preparation method thereof | |
| CN103170218A (en) | Methane purifying method and system | |
| CN108955096A (en) | A kind of method that supercritical carbon dioxide is dry | |
| CN109569241B (en) | CO capture2Spraying device and process | |
| CN106983179A (en) | Aerosol formation component and its assemble method and atomizer, electronic cigarette | |
| CN109966809A (en) | A kind of system of low-temperature plasma regeneration DPF | |
| CN117732521A (en) | Preparation method and application of hydrogen-sensitive particles based on coaxial capillary glass tube microfluidic device | |
| Huang et al. | Performance and mechanism of benzene adsorption on ZnCl2 one-step modified corn cob biochar | |
| CN105935541A (en) | Hollow fiber ceramic membrane absorption apparatus for oil gas recovery | |
| CN206329413U (en) | A kind of fuel molecule adjuster | |
| KR101480683B1 (en) | a multi-nozzle to spray carbon dioxide sorbents and a apparatus for trapping carbon dioxide including it | |
| US20220193596A1 (en) | Composite 3d-printed reactors for gas absorption, purification, and reaction | |
| CN104946329B (en) | Biogas purification treatment system and process suitable for medium-and-small sized biogas generating sets | |
| CN203200021U (en) | Four-tube oxygen making machine | |
| CN118121889A (en) | Preparation method of fire extinguishing microcapsule | |
| CN109356691A (en) | A kind of Catalytic Purifier for Diesel Oil Generator Emission | |
| CN114950386A (en) | Composite nano porous fiber membrane for adsorption desulfurization and preparation method thereof | |
| CN115722034A (en) | Method for recycling monomethylamine tail gas | |
| CN202181212U (en) | Adsorption device for pressure swing adsorption (PSA) oxygen producing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |