WO2014082206A1 - 一种固态胺气体吸附材料的制备方法 - Google Patents
一种固态胺气体吸附材料的制备方法 Download PDFInfo
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- WO2014082206A1 WO2014082206A1 PCT/CN2012/085356 CN2012085356W WO2014082206A1 WO 2014082206 A1 WO2014082206 A1 WO 2014082206A1 CN 2012085356 W CN2012085356 W CN 2012085356W WO 2014082206 A1 WO2014082206 A1 WO 2014082206A1
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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
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
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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
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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
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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
- B01J20/261—Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
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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
- B01J20/28014—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
- B01J20/28047—Gels
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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
- B01J20/281—Sorbents specially adapted for preparative, analytical or investigative chromatography
- B01J20/291—Gel sorbents
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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
- B01J20/3085—Chemical treatments not covered by groups B01J20/3007 - B01J20/3078
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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
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
- C01B33/152—Preparation of hydrogels
- C01B33/154—Preparation of hydrogels by acidic treatment of aqueous silicate solutions
- C01B33/1546—Preparation of hydrogels by acidic treatment of aqueous silicate solutions the first formed hydrosol being converted to a hydrogel by introduction into an organic medium immiscible or only partly miscible with water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/20—Organic absorbents
- B01D2252/204—Amines
- B01D2252/20415—Tri- or polyamines
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- 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
- B01D2253/106—Silica or silicates
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- 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
- B01D2253/20—Organic adsorbents
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/304—Hydrogen sulfide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
- B01J2220/4887—Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes
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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
Definitions
- the invention belongs to the field of preparation of adsorbing materials, and in particular, the invention relates to a method for preparing a solid amine gas adsorbing material, an adsorbing material prepared by the method and the use thereof.
- the invention also relates to a method of preparing a solid amine gas adsorbent material from fly ash.
- BACKGROUND OF THE INVENTION One drawback of industrial development and urbanization is the emission of exhaust gases. Exhaust gases typically contain toxic gases such as sulfur and nitrogen oxides (SO ⁇ P NOx), as well as carbon oxides such as carbon dioxide. The above exhaust gases are all acid gases.
- the solid adsorption material carrying the amine functional group itself is a porous adsorption material, and the amine functional group at the end of the amine molecule can effectively capture the acid gas; when the adsorption material is in contact with the gas to be adsorbed, the synergy between physical adsorption and chemical adsorption is achieved. Its role has greatly improved its adsorption efficiency.
- the combination of the amine and the carrier mainly includes a dipping method and a chemical bond grafting.
- the preparation process by the impregnation method is simple, and it is easy to obtain a high content of amine, so the absorption capacity is high, but the amine and the carrier are not tightly combined, and the volatile loss is high at a higher temperature.
- the absorbent prepared by the chemical bond grafting method, the amine group and the carrier are connected by chemical bonds, and the absorbent has high stability, but the chemical grafting preparation process is complicated and the grafting amount of the amine group is low, and the absorption capacity is generally smaller than that of the impregnated absorbent. .
- porous supports such as silica, alumina, molecular sieves, and activated carbon.
- organic amines In the selection of organic amines, MEA, PEI, DEA, TEPA, etc. are mainly used.
- an organic amine of a suitable molecular size is required to match the pore size of the suitable solid support to the specific surface, so that the organic amine molecule can enter the inside of the pore as much as possible and uniformly load on the surface of the solid support.
- ML Gray uses a fly ash as a carrier to load CPAHCL to synthesize a solid amine adsorbent using a dipping method, and its maximum adsorption capacity is only 1% by weight (C0 2 capture by amine-enriched fly ash carbon sorbents, ML Gray, Y.
- the reason may be that, compared with the theoretical value, the organic amine distribution is not uniform enough, and the amine functional group at the end of the amine molecule is not uniformly on the solid surface and An effective carbon dioxide capture point is formed in the pore; or an amine functional group on the dendrimer and the surface of the solid support
- the active site interactions affect the effective capture of carbon dioxide molecules.
- the invention relates to a method for preparing a solid amine gas adsorbing material, which comprises a porous solid amine gas adsorbing material uniformly loaded with an organic amine in one step.
- a certain amount of acid gas is introduced while introducing an organic amine molecule as a template in the silicate solution, not only the pore size of the 810 2 channel is uniform, but also the organic amine molecule can be uniformly and uniformly distributed on the surface of the Si0 2 .
- the acid gas protects the -NH 2 group of the organic amine from the inactivation of the -NH 2 adhesion due to hydrogen bonding during material synthesis.
- a method of preparing a solid amine gas adsorbent material comprising the steps of: 1) adding an organic amine to the silicate solution, while stirring, slowly introducing an acid gas into the solution until the pH of the solution is 9-11, thereby obtaining a < 2 sol or gel ;
- SiO 2 sol or gel precipitate is filtered from the above solution, aged, dried and dehydrated to obtain a solid amine gas adsorbent.
- the silicate solution has a concentration of from 5 to 50% by weight.
- the silicate solution described in the above step (1) may be any soluble silicate solution known in the art, preferably a sodium silicate solution and/or a potassium silicate solution.
- the silicate solution of the present invention can be obtained from a material containing silicon oxide.
- the material containing silicon oxide is fly ash. That is, another aspect of the present invention provides a method of preparing a solid amine gas adsorbent material from fly ash, comprising the steps of:
- the fly ash and the alkali solution of 10 to 30% by weight are alkali-melted at a ratio of solid to liquid of 1:1 to 1:5 at a temperature of 30 to 120 ° C. After reacting for 30 to 120 minutes, it was filtered to obtain a supernatant containing silicate.
- the reaction is carried out at a temperature of from 80 to 100 °C.
- the acid gas may be selected from the group consisting of carbon oxides, sulfur oxides, nitrogen oxides, and sulfur hydrides, and the acid gas may be selected from the group consisting of carbon dioxide, sulfur oxides, nitrogen oxides, and One or more of hydrogen sulfide; preferably, may be selected from carbon dioxide and/or hydrogen sulfide; from the viewpoint of cost, preferably carbon dioxide.
- the alkali solution may be any strong alkali solution selected from one or more of an amino compound, an alkali metal hydride and a hydroxide; preferably sodium hydroxide and/or potassium hydroxide.
- the organic amine may be selected from the group consisting of polyethyleneimine (PEI), tetraethylenepentamine (TEPA), ethylenediamine, butanediamine, hexamethylenediamine, and triaminoethylamine.
- PI polyethyleneimine
- TEPA tetraethylenepentamine
- ethylenediamine butanediamine
- hexamethylenediamine triaminoethylamine
- triaminoethylamine One or more of acrylonitrile, cyanuric chloride, diisopropylethylamine and methyl acrylate.
- the organic amine is polyethyleneimine (PEI) and/or tetraethylenepentamine (TEPA).
- the organic amine loading of the adsorbent material is 10 to 60%;
- the adsorbent material has an organic amine loading of 30 to 45%.
- the acid gas may have a flow rate of 5 to 15 liters/min; preferably, it is aged at a temperature of 100 to 120 ° C, and dried and dehydrated.
- a solid amine gas adsorbent material which is produced by the above process.
- the adsorbent material has an organic amine loading of 10 to 60% by weight, preferably, a loading of 30 to 45% by weight. More preferably, the adsorbent-supported organic amine is polyethyleneimine (PEI) and/or tetraethylenepentamine (TEPA).
- PEI polyethyleneimine
- TEPA tetraethylenepentamine
- the adsorbent material in the present invention is used for adsorbing and is selected from the group consisting of carbon oxides, sulfur oxides, nitrogen oxides, and sulfur hydrides, and the acid gas may be selected from the group consisting of carbon dioxide, sulfur oxides, nitrogen oxides, and hydrogen sulfide. One or more; preferably, may be selected from carbon dioxide and/or hydrogen sulfide.
- the present invention has the following advantages:
- the method of the present invention comprises one step of synthesizing a solid carrier having a porous high specific surface area supported by an organic amine as a solid amine gas adsorbing material, and the process is simple.
- the amine molecule is introduced into the solution as a templating agent, the size of the Si0 2 channel is uniform during the passage of the acid gas (for example, (0 2 or ⁇ Si0 2 forms a sol gel precipitate)
- the organic amine molecules are uniformly and uniformly distributed on the surface of Si0 2 , and C0 2 reacts with the -NH 2 of the organic amine to prevent the -NH 2 adhesion from being deactivated due to hydrogen bonding during material synthesis.
- the silicate solution in the method of the invention can use fly ash as a raw material, as a by-product of the aluminum ash ash extraction process, the raw material price is low, and the waste is comprehensively utilized.
- the organic amine is loaded on the surface and pores of the solid support and/or combined with its active site for improving the surface and pore structure and properties of the solid support, and increasing
- the amine site, concentration, and/or activity of the gas is captured to improve the rate, ability, and/or performance of the adsorbent material to adsorb or trap the gas. Therefore, the adsorbent material has high stability and high selectivity, which not only increases the adsorption amount of the adsorbed gas, but also accelerates the adsorption rate, thereby obtaining a more stable and efficient adsorption performance of the adsorbent material.
- Fig. 1 is a view showing the synthesis process of a solid amine gas adsorbing material prepared by using fly ash according to the present invention.
- Fig. 2 is a graph showing the adsorption performance of a solid amine gas adsorbent prepared by an embodiment of the present invention and a solid amine gas adsorbent prepared by an impregnation method.
- FIG 3 This figure embodiment PEI prepared in Example 2 (45%) - SiO 2 SEM photograph of the porous adsorbent can be seen that the high specific surface area and shape from the drawing, thereby improving the adsorption properties of C02.
- the present invention will be further explained in detail below, but the following description of the embodiments is only intended to enable those of ordinary skill in the art to understand the present invention. Any form of restriction.
- the properties of the above adsorbent materials and methods for their preparation are illustrated below by way of exemplary, non-limiting examples.
- Example 1 Preparation of PEI (30%)-SiO 2 solid amine gas adsorbent material Step (1): Desilication of fly ash to prepare supernatant
- the fly ash in this example is from a power plant of Shenhua Zhungeer, its chemistry
- the ingredients are shown in Table 1 below.
- Step (3) Aging and drying
- the Si0 2 sol precipitate is filtered and aged at 110 ° C, dried and dehydrated to obtain a solid amine gas adsorbing material.
- the osmotic material has a specific surface area of 9.85 m 2 /g, a pore volume of 0. 05 cmVg, and a pore diameter of 11.02 nm.
- Example 2 Preparation of PEI (45%)-Si0 2 solid amine gas adsorbent material Step (1): Desilication of fly ash to prepare supernatant
- the fly ash in this example is from a power plant of Shenhua Zhungeer, its chemistry
- the ingredients are shown in Table 1 below. Table 1
- Step (3) Aging and drying
- the Si0 2 sol precipitate is filtered and aged at 112 ° C, dried and dehydrated to obtain a solid amine gas adsorbing material.
- Step (3) Aging and drying
- the Si0 2 sol precipitate is filtered and aged at 110 ° C, dried and dehydrated to obtain a solid amine gas adsorbing material.
- Test Example 2 The organic amine loading capacity of the solid amine gas adsorbent prepared by the method of Example 2 of the present invention and the solid amine gas adsorbent synthesized by the conventional impregnation method was measured by a thermogravimetric analyzer by means of a thermogravimetric analyzer and (0 2 The amount of adsorption, the results are shown in Figure 2.
- the preparation method of the solid amine gas adsorbent synthesized by the traditional impregnation method is as follows: The silica porous carrier model is impregnated into the ethanol solution of the organic amine PEI to adsorb or store the organic amine PEI ethanol solution. In the carrier capillary, the excess solution is removed, dried, calcined and activated.
- the solid amine gas adsorbent synthesized by the conventional impregnation method has the highest (0 2 adsorption amount) when the PEI loading is 35 wt%. It is 74 mg/g of adsorbent material, and the solid amine gas adsorbent synthesized by the method of the invention can make the organic amine more uniformly dispersed onto the 810 2 carrier.
- the loading of PEI is 45 wt%
- the adsorption amount of C0 2 The highest, up to 122 mg / g of adsorbent material.
- the terms and expressions used in this specification are used only as descriptive, non-limiting terms and expressions.
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- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
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PCT/CN2012/085356 WO2014082206A1 (zh) | 2012-11-27 | 2012-11-27 | 一种固态胺气体吸附材料的制备方法 |
AU2012395691A AU2012395691B2 (en) | 2012-11-27 | 2012-11-27 | Method for preparing solid amine gas adsorption material |
US14/647,743 US9649618B2 (en) | 2012-11-27 | 2012-11-27 | Method for preparing solid amine gas adsorption material |
EP12889135.5A EP2926896B1 (en) | 2012-11-27 | 2012-11-27 | Method for preparing solid amine gas adsorption material |
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PCT/CN2012/085356 WO2014082206A1 (zh) | 2012-11-27 | 2012-11-27 | 一种固态胺气体吸附材料的制备方法 |
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EP (1) | EP2926896B1 (zh) |
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WO2016011032A1 (en) * | 2014-07-15 | 2016-01-21 | Research Triangle Institute | Solid sorbent materials for acid-gas separation |
CN108745272A (zh) * | 2018-06-15 | 2018-11-06 | 福建工程学院 | 一种粉煤灰直接制备介微孔吸附材料的方法 |
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CN116440855B (zh) * | 2023-06-16 | 2023-09-05 | 格林斯达(北京)环保科技股份有限公司 | 一种净化材料及其制备方法和应用 |
CN116618022A (zh) * | 2023-07-26 | 2023-08-22 | 深碳科技(深圳)有限公司 | 一种固态胺吸附剂及其胺基改性方法 |
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US9649618B2 (en) | 2017-05-16 |
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AU2012395691B2 (en) | 2016-05-26 |
EP2926896B1 (en) | 2020-02-12 |
EP2926896A1 (en) | 2015-10-07 |
AU2012395691A1 (en) | 2015-06-11 |
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