CN109569517A - A kind of preparation method of solid amine absorber - Google Patents
A kind of preparation method of solid amine absorber Download PDFInfo
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- CN109569517A CN109569517A CN201710895343.2A CN201710895343A CN109569517A CN 109569517 A CN109569517 A CN 109569517A CN 201710895343 A CN201710895343 A CN 201710895343A CN 109569517 A CN109569517 A CN 109569517A
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- ultrasonic
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- amine
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- alcohols
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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
- 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
- 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
Abstract
The present invention relates to a kind of methods that supersonic synergic prepares supported solid amine absorber.Ethyl orthosilicate is dissolved in the mixed solution of alcohols, stir and is heated, for the mixed solution mass ratio of ethyl orthosilicate and alcohols in 0.1 ~ 1:8, heating temperature is 30 DEG C ~ 120 DEG C；Organic amine is added in above-mentioned solution, then, opens ultrasound, adds distilled water, reaction generates jelly, and jelly is at room temperature after aging to get target product.The present invention can prepare large specific surface area, and activity is high, and carbon capture performance is good, and recycles excellent CO often2Adsorbent is conducive to dry method trapping CO after burning2Research and application needs.
Description
Technical field
The invention belongs to the fields such as gas separation, gas purification and materials chemistry, it is related to a kind of supersonic synergic and prepares solid
The method of amine absorber.
Background technique
Industrially need to carry out CO2There are many field of trapping, such as natural gas, flue gas, coal bed gas, biogas, synthesis gas, refinery
Gas, oven gas, kiln gas etc..Currently, most business CO2Trapping technique is based on liquid absorption method, solid absorption method, film
Partition method principle and develop.Traditional alkanolamine solution absorption process has been widely used CO2Trapping, but there are process energy consumptions
Height, the rate of deterioration of equipment seriously corroded, amine are fast, absorbing liquid has stronger volatility, and environmental pollution and absorbent is caused to damage
The technical problems such as mistake.Therefore, a kind of new and effective solid absorption method of energy-saving and environmental protection becomes recent CO2It grinds in trapping field
Study carefully hot spot.
Absorption method traps CO2Pass through the CO in physical absorption and (or) chemisorption captured gas using solid absorbent2。
CO is trapped relative to prevailing solution absorption method2, the temperature range that solid absorption method can be used is broad, is easy to reach
Higher and high degree of purification meets post-processing to the rigors of impurity in processed gas, and process is simple, and power consumption is low,
Operation easy to automate.In addition, solid absorption method does not limit the partial pressure for being absorbed component, without adsorbent corrosion equipment etc.
Phenomenon.In the case where practicing green, environmental protection, energy-efficient industrial development theory, solid absorption method CO2Trapping technique has a wide range of applications
Prospect.
The author is directed to the CO of silica gel, active carbon, aluminium oxide and other porous carbon bases, silica-based adsorbent2Adsorb displacement volume
Small, poor selectivity and organic amine chemistry of aqueous solution absorption capture CO2The problems such as existing insufficient, propose one kind on porous support
The method for preparing solid amine adsorbent material with its organic amine-modified surface texture, to obtain solid amine adsorbent material.The absorption
Material is comprehensive utilization absorption method and realizes CO the advantages of chemical absorbing2The new material of trapping, to improve to CO2Absorption
Amount and selectivity.The use of the adsorbent that organic amine-modified mesoporous silicon sill obtains is solid amine absorber, is that one kind has
The decarburizing medium of applications well prospect has obtained the attention of domestic and international researcher.This patent proposes a kind of new solid amine suction
Attached dose of preparation method prepares solid amine absorber using ultrasonic technology.
Ultrasonic wave is a kind of elastic mechanical wave propagated in medium, and frequency is generally the MHz of 20 kHz ~ 2.Ultrasound is right
The facilitation of organic chemistry has been to be concerned by more and more people, it provides one for chemist and energy can be induced one
Unusual approaches and methods into molecule, it can improve chemical reaction condition, shorten the reaction time, and it is brilliant to change compound
The surface topography of body, and can be improved reaction yield and selectivity.
102443168 A of CN provides a kind of porous solid amine and preparation method thereof, is raw material with epoxides, polyamines,
Boric acid is that the buffer for slowing down reaction severity using the method for cross-linked polymeric prepares porous solid amine.CN
104080830 A disclose the method for preparing amine additives, and the amine additives are particularly useful as wetting agent and dispersing agent, especially
It is for Qi Yingyong and plastic applications.103801193 A of CN provides a kind of carbon dioxide capture systems, including solid absorption
Agent material, the solid adsorbent materials include by being covalently keyed the amine being applied to thereon." super cladodification solid amine absorption point
Tetraethylenepentamine (TEPA) is loaded to KIT-6 mesoporous silicon material channel surfaces using dipping method by carbon dioxide in separable flue gas "
The upper super cladodification solid amine KIT-6(TEPA of synthesis), and to its CO absorption2Performance is studied." preparation of solid amine fiber and its
To CO2Absorption regeneration performance study " using polyacrylonitrile (PAN) fiber as matrix, it is modified in fiber table by pre-irradiation grafting
Face introduces amido and is prepared into a kind of solid amine fiber (PAN-AF).
Summary of the invention
The purpose of the present invention is small for current solid amine load adsorbent material specific surface area, adsorption effect is poor, circulation benefit
It is few with number, wastage of material is caused, CO is increased2The problems such as trapping adsorbent material cost, provides a kind of prepare with CO2It adsorbs, again
The method for the solid amine absorber that raw ability is high, carbon capture is had excellent performance and can be recycled for multiple times.The technology of the method
Feature is to prepare supported solid amine absorber using ultrasound.
Main technical schemes of the invention: the preparation method of solid amine absorber, comprising the following steps:
(1) ethyl orthosilicate is dissolved in the mixed solution of alcohols, stirred and heated；
(2) organic amine is added in above-mentioned solution, continues mechanical stirring；
(3) ultrasound wave irradiation device is opened, distilled water is added；
(4) a few hours are kept, transparent jelly is generated, at this point, close ultrasound, jelly is at room temperature after aging, consolidate
Body amine absorber.
Generally, for the mixed solution mass ratio of ethyl orthosilicate and alcohols in 0.1 ~ 1:8, heating is warm in the step (1)
Degree is at 30 DEG C ~ 120 DEG C, preferably 50 DEG C ~ 80 DEG C.
The mixed solution of the alcohols is methanol, ethyl alcohol, propyl alcohol, any one or more in ethylene glycol.
Organic amine is diisopropanolamine (DIPA) (DIPA), isopropylamine base ethyl alcohol (IPAE), monoethanolamine in the step (2)
(MEA), diethanol amine (DEA), methyl-ethanolamine (MMEA), N methyldiethanol amine (MDEA), 2- amino-2-methyl -1-
One of propyl alcohol (AMP), hydroxyethyl piperazine (HEPZ), morpholine (MOR) are a variety of.
Ultrasound wave irradiation device used in the step (3) includes ultrasonic generator and ultrasonic transducer；The ultrasound
Energy converter is piezoelectric ceramic ultrasonic transducer or ultrasonic magnetostrictive energy converter；The ultrasonic generator be sonde-type or
Groove type ultrasonic processor.
Reaction temperature is 30 DEG C ~ 120 DEG C, preferably 50 DEG C ~ 80 DEG C in the step (4)；Reaction time control 1 ~
10 h。
Supersonic frequency used is any low frequency ultrasound of 10~100kHz of frequency, the preferably kHz of 10 kHz~50；Ultrasound
The sound intensity is 0.01 Wcm-2~15 W·m-2, the ultrasound wave irradiation time is 2 ~ 12 h；Ultrasonic continuous processing process, using ultrasonic sound
Strong 0.1 Wm-2~2.0 W·m-2。
Ultrasound of the present invention prepares the preparation method of supported solid amine absorber, can prepare large specific surface area,
Active high, carbon capture performance is good, and recycles excellent CO often2Adsorbent is conducive to dry method trapping CO after burning2's
The needs of research and application.
Specific embodiment
It is illustrated by the following examples the features of the present invention below, but the present invention is not limited to the following embodiments.Front and back institute is not being departed from
Under the range for stating objective, change is included in technical scope of the invention.
Comparative example 1
34.65 g ethyl orthosilicates are dissolved in the mixed solution of 20.65 g ethylene glycol and 20.00 g ethyl alcohol, stir and heat
It to 80 DEG C, is added in 2 g monoethanolamine (MEA) Yu Shangshu solution, continues to stir 30 min.8 h are kept at 80 DEG C, are generated
Transparent jelly, to get white plates target product, the specific surface area for measuring this adsorbent is 24 h of aging at room temperature
102.83 m2/g。
Embodiment 2
34.65 g ethyl orthosilicates are dissolved in the mixed solution of 20.65 g ethylene glycol and 20.00 g ethyl alcohol, stir and heat
It to 80 DEG C, is added in 2 g monoethanolamine (MEA) Yu Shangshu solution, continues to stir 30 min, it is super to open 20 kHz luffing rod-types
Sound, the ultrasonic sound intensity are 0.5 W/cm2, add 60.00 g ethyl alcohol and 15.00 g distilled water.8 h are kept at 80 DEG C, are generated saturating
Bright jelly, at this point, closing ultrasound, 24 h of aging measures this suction to get white plates target product to jelly at room temperature
Attached dose of specific surface area is 201.31 m2/g。
Embodiment 3
34.65 g ethyl orthosilicates are dissolved in the mixed solution of 20.65 g ethylene glycol and 20.00 g ethyl alcohol, stir and heat
It to 80 DEG C, is added in 2 g monoethanolamine (MEA) Yu Shangshu solution, continues to stir 30 min, it is super to open 20 kHz luffing rod-types
Sound, the ultrasonic sound intensity are 1.2 W/cm2, add 60.00 g ethyl alcohol and 15.00 g distilled water.8 h are kept at 80 DEG C, are generated saturating
Bright jelly, at this point, closing ultrasound, 24 h of aging measures this adsorbent to get white powder product to jelly at room temperature
Specific surface area be 285.32 m2/g。
Embodiment 4
34.65 g ethyl orthosilicates are dissolved in the mixed solution of 20.65 g ethylene glycol and 20.00 g ethyl alcohol, stir and heat
It to 80 DEG C, is added in 2 g monoethanolamine (MEA) Yu Shangshu solution, continues to stir 30 min, open 100 kHz groove type ultrasonics,
The ultrasonic sound intensity is 1.2 W/cm2, add 60.00 g ethyl alcohol and 15.00 g distilled water.8 h are kept at 80 DEG C, are generated transparent
Jelly, at this point, close ultrasound, 24 h of aging measures this adsorbent to get white powder product to jelly at room temperature
Specific surface area is 222.13 m2/g。
Can be seen that the method for the present invention from the above comparative example and embodiment can prepare large specific surface area, and activity is high, and carbon is caught
It is good to collect performance, and recycles excellent CO often2Adsorbent is conducive to dry method trapping CO after burning2Research and application
It needs.
Claims (10)
1. a kind of preparation method of solid amine absorber, comprising the following steps:
(1) ethyl orthosilicate is dissolved in the mixed solution of alcohols, stirred and heated；
(2) organic amine is added in above-mentioned solution, continues mechanical stirring；
(3) ultrasound wave irradiation device is opened, distilled water is added；
(4) a few hours are kept, transparent jelly is generated, at this point, close ultrasound, jelly is at room temperature after aging, consolidate
Body amine absorber.
2. according to the method described in claim 1, it is characterized in that in step (1) ethyl orthosilicate and alcohols mixed solution matter
Ratio is measured in 0.1 ~ 1:8, heating temperature is at 30 DEG C ~ 120 DEG C.
3. according to the method described in claim 2, it is characterized in that the mixed solution of ethyl orthosilicate and alcohols in step (1)
Heating temperature is 50 DEG C ~ 80 DEG C.
4. method according to claim 1 or 2, it is characterised in that the mixed solution of alcohols is methanol, ethyl alcohol, propyl alcohol, second
Any one or more in glycol.
5. according to the method described in claim 1, it is characterized in that organic amine is diisopropanolamine (DIPA) (DIPA), different in step (2)
Propylamino ethyl alcohol (IPAE), monoethanolamine (MEA), diethanol amine (DEA), methyl-ethanolamine (MMEA), N- methyl diethanol
One of amine (MDEA), 2-amino-2-methyl-1-propanol (AMP), hydroxyethyl piperazine (HEPZ), morpholine (MOR) are a variety of.
6. according to the method described in claim 1, it is characterized in that ultrasound wave irradiation device used in step (3) includes ultrasound hair
Raw device and ultrasonic transducer；The ultrasonic transducer is piezoelectric ceramic ultrasonic transducer or ultrasonic magnetostrictive transducing
Device；The ultrasonic generator is sonde-type or groove type ultrasonic processor.
7. according to the method described in claim 1, it is characterized in that in step (4) reaction temperature be 30 DEG C ~ 120 DEG C, reaction
Time controls in 1 ~ 10 h.
8. according to the method described in claim 7, it is characterized in that reaction temperature is 50 DEG C ~ 80 DEG C in step (4).
9. according to the method described in claim 1, it is characterized in that supersonic frequency used is any of 10~100kHz of frequency
Low frequency ultrasound；The ultrasonic sound intensity is 0.01 Wcm-2~15 W·m-2, the ultrasound wave irradiation time is 2 ~ 12 h；Ultrasonic continuous processing mistake
Journey, using ultrasonic 0.1 Wm of the sound intensity-2~2.0 W·m-2。
10. according to the method described in claim 9, it is characterized in that supersonic frequency used is the kHz of 10 kHz~50.
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| CN201710895343.2A CN109569517A (en) | 2017-09-28 | 2017-09-28 | A kind of preparation method of solid amine absorber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022257045A1 (en) * | 2021-06-09 | 2022-12-15 | 深碳科技(深圳)有限公司 | Silicon-based solid amine co2 adsorbent and preparation method therefor |
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Address after: Liuhe District of Nanjing City, Jiangsu province 210048 geguan Road No. 699 Applicant after: CHINA PETROLEUM & CHEMICAL Corp. Applicant after: SINOPEC NANJING CHEMICAL RESEARCH INSTITUTE Co.,Ltd. Address before: Liuhe District of Nanjing City, Jiangsu province 210048 geguan Road No. 699 Applicant before: China Petroleum & Chemical Corp. Applicant before: RESEARCH INSTITUTE OF NANJING CHEMICAL INDUSTRIAL Group |
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