CN1895771A - Organic-amine-porous composite material for adsorbing carbon dioxide efficiently - Google Patents
Organic-amine-porous composite material for adsorbing carbon dioxide efficiently Download PDFInfo
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- CN1895771A CN1895771A CNA2006100853565A CN200610085356A CN1895771A CN 1895771 A CN1895771 A CN 1895771A CN A2006100853565 A CNA2006100853565 A CN A2006100853565A CN 200610085356 A CN200610085356 A CN 200610085356A CN 1895771 A CN1895771 A CN 1895771A
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims description 97
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims description 49
- 239000001569 carbon dioxide Substances 0.000 title claims description 48
- 239000002131 composite material Substances 0.000 title claims description 26
- 150000001412 amines Chemical class 0.000 claims abstract description 26
- 239000013335 mesoporous material Substances 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 239000000843 powder Substances 0.000 claims description 32
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 14
- 229940043237 diethanolamine Drugs 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000006185 dispersion Substances 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- 239000002808 molecular sieve Substances 0.000 claims description 8
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 8
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 21
- 238000001179 sorption measurement Methods 0.000 description 15
- 238000004817 gas chromatography Methods 0.000 description 13
- 238000010992 reflux Methods 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 239000011148 porous material Substances 0.000 description 7
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 7
- 238000002336 sorption--desorption measurement Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 238000003795 desorption Methods 0.000 description 6
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 239000010457 zeolite Substances 0.000 description 5
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 229910021536 Zeolite Inorganic materials 0.000 description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 description 2
- 239000004530 micro-emulsion Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- 239000005046 Chlorosilane Substances 0.000 description 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 1
- 230000018199 S phase Effects 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000003708 ampul Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical compound C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000010812 external standard method Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000002411 thermogravimetry Methods 0.000 description 1
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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
-
- 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
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Gas Separation By Absorption (AREA)
Abstract
An organic amine-mesoporous material composition for effectively adsorbing CO2 is prepared through directly coating organic amine onto the synthesized raw particles of mesoporous material.
Description
One, technical field
The present invention relates to a kind of novel mesoporous material that can absorbing carbon dioxide, specifically a kind of organic-amine-porous composite material of adsorbing carbon dioxide efficiently.
Two, background technology
Carbon dioxide is the product of fuel combustion and animal breath.Along with the The modern industry development, the gas concentration lwevel in the environment constantly increases, and causes occurring serious " greenhouse effects ".Particularly in the confined space survival system, it is one of fundamental prerequisite of assurance personnel normal life and work that the separation of carbon dioxide is removed.According to physiological research, in the gas that the people breathes, carbon dioxide content rises at 2% o'clock, and the people will feel palpitating speed, and is drowsy, and carbon dioxide content rises at 3% o'clock, and the people just may poison dead.Therefore according to the rules in submarine bay, concentration of carbon dioxide can not surpass 1%.At other confined space, as also there being same problem in the manned spacecraft.Common sealing system such as conventional submarine can adopt the mode that floats night, change air in the cabin.But at some in particular cases, can not expose in order to keep its deterrent force, whereabouts as the nuclear submarine that cruises under water for a long time, must in the several months, remain on hidden under water, must not float.The higher problem of gas concentration lwevel will become that to influence the seaman healthy and even influence the key factor of national nuclear deterrent in the thing followed cabin.Compare with Great Britain and America naval, because my ship person's number of some nuclear submarine of army is more, it is more outstanding to breathe the carbon dioxide build-up phenomenon that produces, thereby becomes and improve my army's nuclear submarine continuation of the journey fighting capacity problem demanding prompt solution.
Adopt chemical method can remove carbon dioxide in the closed environment, the shortcoming of this mode is: no matter use in the alkali compounds and carbon dioxide, also be to use organic base solution absorbing carbon dioxide, in a single day chemical reagent is used up just can't tackle the situation that generates carbon dioxide because personnel breathe continually in the cabin.Therefore must be by the carbon dioxide content in reversible adsorption-desorption process control enclosed system.Use amine or hydramine such as monoethanolamine (MEA), diethanol amine (DEA) and methyl diethanolamine (MDEA) or to adhere to amino in porous carrier all be the means of using always.Soak amine on the coal ash, also can absorb 18% carbon dioxide.The adsorbance of synthetic zeolite can reach 7-8mol/kg, preferential adsorption carbon dioxide under the high pressure, and weight ratio reaches 35wt.-%.But in order to control concentration of carbon dioxide in the nuclear submarine sealed compartment, require sorbing material adsorption-desorption fast, recycle; And zeolite is strong excessively for the absorption of carbon dioxide, is not suitable for carrying out this adsorption/desorption that circulates repeatedly.In addition, a disadvantage of zeolite adsorption is exactly that vapour lock is too big, and microcellular structure is seriously limiting the throughput of gas.This not only causes remarkable pressure drop and becomes technology " bottleneck " in existing chemical process, and is difficult to be applied to during other aspects such as floor ventilating system purify air.
Recently a lot of people begin that mesopore molecular sieve is used for absorption and remove carbon dioxide, U.S. scientific research personnel synthetic aperture is the SBA-15 of 21nm, 500 ℃ of high-temperature roastings are removed after the template agent micella in the duct, flood gamma-aminopropyl-triethoxy-silane again, can adsorb 2% carbon dioxide:
The Japan scientific research personnel introduces amino on mesoporous si molecular sieves SBA-15 and MCM-41 by similar two steps, usefulness chlorosilane.U.S. Song Chun-shan Mountain seminar introduces high-temperature roasting with polymine and removes the later MCM-41 of template agent micella in the duct, and the gained material reaches 13.3wt.% in the ability of 75 ℃ of absorbing carbon dioxides.
Mesoporous material is to be the template agent with the surfactant, utilize sol-gel (sol-gel), emulsification (emulsion) or micro emulsion physical and chemical processes such as (microemulsion), by the inorganic porous material of the assembling of the interface interaction between organic matter and inorganic matter generation.In its hydro-thermal building-up process, organic formwork agent is agglomerated into " centre of sphere " and externally forms " sphere " by long-chain with hydrophilic radical with hydrophobic group, forms the micella formation pore structure that leads.Generally need remove the surfactant that synthesizes in the former powder, obtain mesopore molecular sieve by roasting or solvent extraction process.
These sorbing materials all exist following problem at present: adsorption effect is poor, need be to introducing more amino in the porous material and making these amino high degree of dispersion in mesoporous material, to improve adsorption capacity and to obtain the good adsorption effect.
Three, summary of the invention
The organic-amine-porous composite material that the purpose of this invention is to provide a kind of adsorbing carbon dioxide efficiently of advantages of good adsorption effect, this composite utilize micella the thread distribution in the duct and and the silicon wall between inferior nano gap, organic amine coating or high degree of dispersion on micella and hole wall, are formed on the new sorbing material that has high interception efficient in the air-flow.
The objective of the invention is to be achieved through the following technical solutions:
A kind of organic-amine-porous composite material of adsorbing carbon dioxide efficiently is characterized in that: the synthetic former powder of mesoporous material as carrier, is coated with organic amine on this synthetic former powder.
In order to improve adsorption effect, to introducing more amino in the porous material and making these amino high degree of dispersion in mesoporous material, include template agent micella in the synthetic former powder of mesoporous material described in the present invention, and with it as Supporting Media high degree of dispersion organic amine.Mesopore molecular sieve is keeping template agent micella wherein whole or in part when synthesizing former powder.Described mesoporous material is to have six side's phases (p6mm) or cube phase (Ia3d, mesopore molecular sieve Im3m), total silicon or contain silicon components at least, and all contain employed corresponding template agent micella when synthetic.The thread distribution in the duct of template agent micella, and and the silicon wall between have inferior nano gap, organic amine coating back high degree of dispersion is on micella and hole wall.
Organic amine of the present invention is any one or several mixture in TEPA, diethanol amine, the diethylenetriamine.Mesoporous molecular sieve carried have an at least a or multiple organic amine.
The present invention utilizes micella in the synthetic former powder sample, mesoporous material is carried out modification, utilize micella the thread distribution in the duct and and the silicon wall between inferior nano gap, organic amine coating or high degree of dispersion on micella and hole wall, are formed on the new sorbing material that has high interception efficient in the air-flow.The present invention will not only utilize micella to assist to disperse organic amine with the modification hole wall, and directly be coated with organic amine, forms network structure in the duct at micellar surface.
In the former powder sample in the duct existence of micella be a unique resource, trickle slit between micella itself and micella and the silicon wall can facilitate slaine under molten condition by approach such as capillary infiltrations by high dispersive, convert oxide nano-particles after the roasting to and in absorption/catalytic process, given play to good performance.In the past, in the preparation of these high dispersive Subjective and Objective new materials, template agent micella finally all must be removed.But in the present invention, micella in the mesoporous material raw powder in the duct is utilized to disperse, be coated with organic amine as supporter, form " knitmesh in the pipe " composite adsorbing material: with the mesoporous material is substrate, " mesh " of keep template agent micella contained in the former powder, forming different scale in mesoporous space tackled the target molecule in the air-flow and adsorbed, and sees Fig. 1.Like this, provide spatial constraints, the steering current of regularity to enter and keep enough big circulation (comparing), again by the compound interception/absorbing carbon dioxide molecule of network and coating with micro-pore zeolite by meso-hole structure.Compare with the micro-pore zeolite material, the present invention can reach very high gas communication amount; Compare with common mesoporous material, interception efficient of the present invention and pore size distribution are better again.
For reaching optimal adsorption, desorption effect, when reality is used, can improve the adsorption efficiency of composite of the present invention by alternating temperature absorption program for carbon dioxide in the enclosed system.Composite contains the gas of carbon dioxide earlier 75 ℃ of contacts, be elevated to 100 ℃ again and keep reducing the temperature to 35 ℃ then in 1 hour.In this adsorption process, improving temperature is to impel the carbon dioxide rapid diffusion to enter in the micropore gap of adsorbent, is reduced to lower temperature then carbon dioxide is adsorbed, and under 100 ℃ gas flow purging the carbon dioxide desorption of absorption is removed at last.For the nuclear submarine of electric power abundance, adopt the adsorption efficiency that is expected to improve effectively carbon dioxide in the enclosed system in such a way, reduce the carbon dioxide content in the ventilating system.
The present invention utilizes intrinsic template agent micella in the synthetic former powder of mesoporous silicon oxide, by the impregnating method with presoma high degree of dispersion such as organic amines to the former powder carrier of the mesoporous silicon oxide that contains template, utilize the amino of organic amine and the interaction of carbon dioxide molecule to realize high efficiency absorption again.Adopt the organic-amine-porous composite material of the present invention's preparation, in low concentration of carbon dioxide, have the adsorbance of high efficiency, high stability; Simultaneously, the present invention has also reduced cost at the energy of saving the agent of roasting removal template with when reducing environmental pollution.The present invention can reach 210mg/g in 35-75 ℃ adsorption process, considerably beyond present peak 140mg/g (13wt.-%).
Application of the present invention is extensive, be mainly used in the carbon dioxide of removing in closed environment such as nuclear submarine and space station and the underground national defence fortification, also can be applied to other and need adsorb the system of removing carbon dioxide and in from domestic fuel gas, remove carbon dioxide impurities.
Four, description of drawings
Accompanying drawing is to be substrate with the mesoporous material among the present invention, keeps template agent micella contained in the former powder, forms the schematic diagram that " mesh " of different scale tackled and adsorbed the target molecule in the air-flow in mesoporous space.
Five, the specific embodiment
Further specify the present invention by the following examples.
For detecting composite of the present invention for CO
2Adsorption effect, the present invention adopts thermogravimetric-mass spectral analysis (TG-MS) technology to measure composite mesoporous new material at different CO with gas chromatography
2In the gaseous mixture under the concentration for CO
2Adsorbance.
Thermogravimetry is measured carbon dioxide adsorption: get the 100mg sample, put into hot assay balance, at the N of 30ml/min
2Behind 100 ℃ of activation 2h, reduce to 75 ℃ in the air-flow, feed CO with the flow velocity of 30ml/min
2, write down the CO of the weightening finish of sample by thermobalance simultaneously with working sample
2Adsorbance.
Gas-chromatography is measured the adsorbance of carbon dioxide in conjunction with the temperature programmed desorption method: get 75mg 20-40 order sample and put into U type quartz ampoule, at the N of 30ml/min
2100 ℃ of activation 2h in the air-flow.Inject CO
2Preceding confirmatory sample does not have the desorption material to emit at 100 ℃.After reducing to 75 ℃, injects by sample excessive CO
2Behind the static absorption 2.5h, reduce to 35 ℃, H
2After purging about 2h, from 35 ℃ of temperature programmings to 100 ℃ and detect the carbon dioxide of desorption with gas-chromatography " online ".The carbon dioxide that quantitatively detects desorption by " external standard method " is measured the carbon dioxide adsorption of sample.
Embodiment 1
Under the room temperature, with 2g P123 (EO
20PO
70EO
20) be dissolved in the solution of the HCl of 60g 2M and 15g water, slowly add the 4.25g ethyl orthosilicate while stirring under 40 ℃, 40 ℃ are continued down to stir 24h, leave standstill 24h in 100 ℃ subsequently.Cooling, filtration, washing room temperature are dried the former powder of white SBA-15 that obtains, and abbreviate SBA (P) sample as.Get in the 10g ethanolic solution that the former powder of 0.2g SBA-15 joins the 0.2g TEPA, behind 80 ℃ of stirring and refluxing 2h, 80 ℃ of evaporates to dryness obtain the sample of load 50wt.-% amine.TEPA-SBA (P) composite that in like manner prepares the different loads amount.Gained sample note is made SBA (P)-X, and X represents the weight percent content of TEPA in sample.Resulting sample carries out CO through TG and gas chromatography
2The measurement of absorption, its adsorbance data rows is in table 1.
Table 1 TEPA-SBA (P) composite CO
2Adsorpting data
| Sample | CO 2Adsorbance (mg/g) |
| SBA(P)-10 SBA(P)-30 SBA(P)-40 SBA(P)-50 SBA(P)-60 SBA(P)-70 | 6 63 137 144 164 173 |
Sample is not only at high CO in addition
2Have higher adsorbance in the concentration, and at low CO
2Have higher adsorbance and stable circulation adsorbance under the concentration equally.Table 2 is that SBA (P)-50 sample is containing 5%CO
2Circulation adsorbance in the atmosphere of concentration.
Table 2SBA (P)-50 composite is at 5%CO
2Adsorpting data in the concentration
| Number of times | CO 2Adsorbance (mg/g) |
| 1 2 3 4 5 6 7 | 142 139 144 135 137 132 136 |
Embodiment 2
Under the room temperature, 1g NaOH is dissolved in 45g H
2Behind the O, with 3g SiO
2Heating for dissolving is in this solution; Simultaneously 4.5g CTAB (CTAB) is dissolved in and obtains another solution in the 25g water.Under 25 ℃, after two parts of solution mixing, the hydrochloric acid that slowly adds 2M is while stirring transferred pH to 11, and 25 ℃ are continued down to stir 6h, leave standstill 72h in 100 ℃ subsequently.Cooling, filtration, washing room temperature are dried the former powder of white MCM-41 that obtains.Get the former powder of a certain amount of MCM-41 and join in the ethanolic solution of 10g TEPA, behind 80 ℃ of stirring and refluxing 2h, obtain the TEPA-MCM-41 composite of different loads amount at 80 ℃ of evaporates to dryness.Gained sample note is made MCM41-X, and X represents the degree of TEPA in sample.Resulting sample carries out CO through TG and gas chromatography
2The measurement of absorption, its adsorbance data rows is in table 3.
Table 3 TEPA-MCM41 composite CO
2Adsorpting data
| Sample | CO 2Adsorbance (mg/g) |
| MCM41-10 MCM41-30 MCM41-40 MCM41-50 MCM41-60 | 24 120 167 210 221 |
Embodiment 3
After getting 2.4g CTAB (CTAB) and being dissolved in 50g water and 43g ethanol, add the ammoniacal liquor of 12mL 30wt-%, add behind the stirring at room 10min 3.4g TEOS (tetraethyl orthosilicate) continue to stir 24h after filtration washing obtain the former powder of MCM-48.Get in the 10g ethanolic solution that the former powder of 0.2g MCM-48 joins the 0.2g TEPA, behind 80 ℃ of stirring and refluxing 2h, 80 ℃ of evaporates to dryness obtain the sample of load 50wt.-% amine, and gained sample note is made MCM48-50, and through TG and gc analysis, CO
2Adsorbance reaches 186mg/g.
Embodiment 4
Under the room temperature, with 2g F127 (EO
106PO
70EO
106) be dissolved in the solution of the hydrochloric acid of 60g 2M and 15g water, under 25 ℃, slowly add the 4.25g ethyl orthosilicate while stirring, 25 ℃ are continued down to stir 24h, leave standstill 24h in 100 ℃ subsequently.After the taking-up, filter, the washing room temperature is dried the former powder of white SBA-16 that obtains.Get in the 10g ethanolic solution that the former powder of 0.2g SBA-16 joins the 0.2g TEPA, behind 80 ℃ of stirring and refluxing 2h, 80 ℃ of evaporates to dryness obtain the sample of load 50wt.-% amine, and gained sample note is made SBA16-50, and through TG and gas chromatography determination and analysis, CO
2Adsorbance reaches 80mg/g.
Embodiment 5
Under the room temperature, with 2g P123 (EO
20PO
70EO
20) be dissolved in the solution of the hydrochloric acid of 60g 2M and 15g water after, add the 2g butanols and in 40 ℃ stir 1h after, add the 4.25g ethyl orthosilicate, 40 ℃ are continued down to stir 24h, 100 ℃ leave standstill 24h subsequently.Cooling, filtration, washing room temperature are dried the former powder of white KIT-6 that obtains.Get in the 10g ethanolic solution that the former powder of 0.2g KIT-6 joins the 0.086g TEPA, behind 80 ℃ of stirring and refluxing 2h, 80 ℃ of evaporates to dryness obtain the sample of load 30wt.-% amine, and gained sample note is made KIT6-30, and through TG and gas chromatography assay determination, CO
2Adsorbance reaches 120mg/g.
Embodiment 6
Get the former powder of 0.2g SBA-15 and join in the ethanolic solution of 10g TEPA and diethanol amine, behind 80 ℃ of stirring and refluxing 2h, 80 ℃ of evaporates to dryness obtain the sample of load mixed amine.Gained sample note is made SBA (P)-mix-m-n, and m and n represent TEPA and the diethanol amine weight percent content in sample respectively.Resulting sample carries out CO through TG and gas chromatography
2Absorption is measured, and its adsorbance data rows is in table 4.
Table 4 TEPA-diethanol amine-SBA (P) composite CO
2Adsorpting data
| Sample | CO 2Adsorbance (mg/g) |
| SBA(P)-mix-10-40 SBA(P)-mix-20-30 SBA(P)-mix-25-25 SBA(P)-mix-30-20 SBA(P)-mix-35-15 SBA(P)-mix-40-10 | 92 128 134 163 153 150 |
Embodiment 7
Get in the mixed ethanol solution that the former powder of 0.2g MCM-41 joins 10g TEPA and diethanol amine, behind 80 ℃ of stirring and refluxing 2h, 80 ℃ of evaporates to dryness obtain the sample of load mixed amine.Gained sample note is made MCM41-mix-m-n, and m and n represent TEPA and the diethanol amine weight percent content in sample respectively.Resulting sample carries out CO through TG and gas chromatography
2Absorption is measured, its adsorbance data rows under tabulate in 5.
Table 5 TEPA-diethanol amine-MCM41 composite CO
2Adsorpting data
| Sample | CO 2Adsorbance (mg/g) |
| MCM41-mix-10-40 MCM41-mix-20-30 MCM41-mix-25-25 MCM41-mix-30-20 MCM41-mix-35-15 MCM41-mix-40-10 | 60 131 138 171 192 210 |
Embodiment 8
Get in the mixed ethanol solution that the former powder of 0.2g SBA-15 joins 10g TEPA and glycerine, behind 80 ℃ of stirring and refluxing 2h, 80 ℃ of evaporates to dryness obtain the sample of load mixed amine.TEPA and the glycerine weight percent content in sample is respectively 40% and 10% in the gained sample, carries out CO through TG and gas chromatography
2Adsorption-desorption is measured, CO
2Adsorbance reaches 148mg/g.
Embodiment 9
Get the former powder of 0.2g SBA-15 and join in the ethanolic solution of 10g diethanol amine, behind 80 ℃ of stirring and refluxing 2h, 80 ℃ of evaporates to dryness obtain the sample of load diethanol amine.The weight percent content of diethanol amine is 50% in gained diethanol amine-SBA15 sample, carries out CO through TG and gas chromatography
2The measurement of adsorption-desorption, this sample CO
2Adsorbance reaches 21mg/g.
Embodiment 10
Get the former powder of 0.2g MCM-41 and join in the ethanolic solution of 10g diethanol amine, behind 80 ℃ of stirring and refluxing 2h, obtain the sample of load diethanol amine at 80 ℃ of evaporates to dryness.The weight percent content of diethanol amine in sample is 50% in the gained sample, carries out CO through TG and gas chromatography
2The measurement of adsorption-desorption, CO
2Adsorbance reaches 19mg/g.
Embodiment 11
Get in the 10g ethanolic solution that the former powder of 0.2g MCM-41 joins the 0.2g diethylenetriamine, behind 80 ℃ of stirring and refluxing 2h, obtain the sample of load diethylenetriamine, carry out CO through TG and gas chromatography at 80 ℃ of evaporates to dryness
2The measurement of adsorption-desorption, CO
2Adsorbance reaches 12mg/g.
The present invention with mesoporous material raw powder directly as carrier, give full play to the effect of template agent micella, synthesized organic-amine-porous molecular sieve composite material with carbon dioxide in the efficient removal closed environment, the thinking uniqueness, at the energy of saving the agent of roasting removal template with when reducing environmental pollution, also reduced cost.Adopt the organic-amine-porous composite material of the present invention's preparation, in low concentration of carbon dioxide, have the adsorbance of high efficiency, high stability.
Claims (5)
1, a kind of organic-amine-porous composite material of adsorbing carbon dioxide efficiently is characterized in that: the synthetic former powder of mesoporous material as carrier, is coated with organic amine on this synthetic former powder.
2, the organic-amine-porous composite material of adsorbing carbon dioxide efficiently according to claim 1 is characterized in that: include template agent micella in the synthetic former powder of described mesoporous material, and with it as Supporting Media high degree of dispersion organic amine.
3, the organic-amine-porous composite material of adsorbing carbon dioxide efficiently according to claim 2, it is characterized in that: described mesoporous material is the mesopore molecular sieve with six sides phase or cube phase, total silicon or contain silicon components at least, and all contain employed corresponding template agent micella when synthetic.
4, the organic-amine-porous composite material of adsorbing carbon dioxide efficiently according to claim 3, it is characterized in that: the thread distribution in the duct of described template agent micella, and and exist inferior nano gap, organic amine to be coated with the back high degree of dispersion on micella and hole wall between the silicon wall.
5, the organic-amine-porous composite material of adsorbing carbon dioxide efficiently according to claim 1 is characterized in that: described organic amine is any one or several mixture in TEPA, diethanol amine, the diethylenetriamine.
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