CN109200760A - A kind of eutectic solvent of the regenerated carbon dioxide removal of stable low energy consumption - Google Patents
A kind of eutectic solvent of the regenerated carbon dioxide removal of stable low energy consumption Download PDFInfo
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- CN109200760A CN109200760A CN201811383768.6A CN201811383768A CN109200760A CN 109200760 A CN109200760 A CN 109200760A CN 201811383768 A CN201811383768 A CN 201811383768A CN 109200760 A CN109200760 A CN 109200760A
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- Prior art keywords
- hydrogen bond
- eutectic solvent
- carbon dioxide
- energy consumption
- low energy
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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
- B01D53/14—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 absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
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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
- B01D53/14—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 absorption
- B01D53/1456—Removing acid components
- B01D53/1475—Removing 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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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 CO2Adsorb capture field, more particularly to a kind of eutectic solvent of stable regenerated carbon dioxide removal of low energy consumption, it is made of hydrogen bond donor and hydrogen bond receptor, the hydrogen bond donor and the hydrogen bond receptor pass through hydrogen bond association formation ternary eutectic eutectic mixture, the wherein hydrogen bond receptor is ammonium chloride or hydrochloric acid-ammonium chloride, hydrogen bond donor is made of organic amine and polyalcohol, can effectively improve the reaction speed with carbon dioxide, increases adsorbance；Low cosolvent prepared by the present invention can effectively improve the absorption capture rate of carbon dioxide and reduce regeneration energy consumption.
Description
Technical field
The present invention relates to CO2Adsorb capture field, and in particular to a kind of stable regenerated carbon dioxide removal of low energy consumption
Eutectic solvent.
Background technique
Carbon dioxide is main greenhouse gases, and discharge causes Global Temperature to increase, and thus bring environmental problem is closed
It is the survival and development to the mankind, is most one of stern challenge that human society faces.Research shows that the end of the 20th century CO2Discharge
Amount will make 6 DEG C of global warning, substantially exceed 2 DEG C of " safety line ", will be after bringing on a disaster property if taken no action to
Fruit.It is fossil-fuel-fired to cause largely to discharge CO2, cause in recent years global accelerated warmer.But since coal is cheap and fires
Burning technology mature causes the mankind to the dependence of fossil fuel, is in a short time still very much main energy sources.Therefore
Capture to greenhouse gases is CO in current reduction atmosphere2One of content more effective method is research in recent years
Emphasis.
Chemical absorption method uptake is big, good absorption effect, absorbent recycle and can obtain high-purity CO2, utilize weak
Alkaline absorbent and CO2Reaction, generating unstable salt, (as heated), inverse decomposition releases CO again under certain conditions2.Change
The liquid absorption method learned in absorbent point includes hot potash method, organic amine absorption process and Ammonia Process.Hot potash method absorbability is strong,
Cheap, regeneration gas purity is high, reaction speed is slower, and easy to foaming, regeneration energy consumption is larger, to the serious corrosion of equipment.
Ammonium hydroxide absorbs CO2High-efficient, at low cost, energy consumption is small, also small to the corrosion of equipment.But ammonium hydroxide it is unstable and regenerate when release
CO2Carry a certain amount of ammonia secretly.
Organic amine absorption process is presently the most extensive CO2Chemical absorption method, organic amine and CO2Shape after chemically reacting
Solvent and CO are isolated at a kind of stable intermediate complex, then by regenerating unit2.Amine absorbent infiltration rate is fast, inhales
Receipts ability is strong, at low cost, but organic amine absorbent be highly prone to the impurity such as organic matter, inorganic matter and solid particle pollution and
Degradation, causes solvent loss.In addition this method needs to consume a large amount of energy during the cycling and reutilization of amine aqueous solution, and right
The corrosion of equipment is more serious.Ionic liquid has item number prospect as substitution Amine Solutions, but its viscosity height leads to mass transfer
Speed is slow, CO2Adsorption rate is low, and adsorbance is calculated with every gram of adsorbent and is far below Amine Solutions, is not able to satisfy use and is wanted
It asks.
Summary of the invention
(1) the technical issues of solving
The present invention in view of the above problems, provides a kind of eutectic of regenerated carbon dioxide removal of stable low energy consumption
Solvent can effectively improve the absorption capture rate of carbon dioxide.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
A kind of eutectic solvent of the regenerated carbon dioxide removal of stable low energy consumption, which is characterized in that the eutectic is molten
Agent is made of hydrogen bond donor and hydrogen bond receptor, and the eutectic solvent is formed by hydrogen bond donor and hydrogen bond receptor by hydrogen bond association
Ternary eutectic solvent；
The hydrogen bond receptor is ammonium chloride, any one in hydrochloric acid-ammonium chloride, and the hydrogen bond donor is by organic amine and more
First alcohol composition.
Preferably, the organic amine is ethanol amine, diethanol amine, triethanolamine, diethylenetriamine and N, N- dimethyl second
Any one in diamines.
Preferably, the polyalcohol is any one in pentaerythrite, ethylene glycol, glycerine and butanediol.
Preferably, the molar ratio of hydrogen bond donor, organic amine and polyalcohol three is 1:(4 in the ternary eutectic solvent
~10): (0.01~1).
Preferably, the molar ratio of hydrogen bond donor, organic amine and polyalcohol three is 1:(4 in the ternary eutectic solvent
~8): (0.1~0.8).
Preferably, the eutectic solvent is applied to CO2The absorption of gas captures.
(3) beneficial effect
Eutectic solvent of the present invention is made of hydrogen bond donor and hydrogen bond receptor, and hydrogen bond donor and hydrogen bond receptor are formed by hydrogen bond
Conjunction forms ternary eutectic eutectic mixture, and wherein hydrogen bond receptor is ammonium chloride or hydrochloric acid-ammonium chloride, and hydrogen bond donor is by organic amine
It is constituted with polyalcohol, the reaction speed with carbon dioxide can be effectively improved, increase adsorbance；Low cosolvent prepared by the present invention can
It effectively improves the absorption capture rate of carbon dioxide and reduces regeneration energy consumption.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of creative work.
Embodiment 1
A kind of eutectic solvent of the regenerated carbon dioxide removal of stable low energy consumption, is made of: chlorination following components
The molar ratio of ammonium, ethanol amine and ethylene glycol, three is 1:4:0.01, and three is mixed, is stirred 2 hours, obtains clarifying molten
Liquid is eutectic solvent.
Embodiment 2
A kind of eutectic solvent of the regenerated carbon dioxide removal of stable low energy consumption, by hydrochloric acid-ammonium chloride, ethanol amine and third
Three component compositions of triol, molar ratio 1:6:0.5, preparation method such as embodiment 1.
At room temperature by CO2Gas introduces 5ml above-mentioned solvent with the flow velocity of 10ml/min and passes through after absorption 1 hour
Weight detecting obtains CO2Adsorptive value be 0.24g/g.
Embodiment 3
A kind of eutectic solvent of the regenerated carbon dioxide removal of stable low energy consumption, by ammonium chloride, ethanol amine and ethylene glycol
Three component compositions, molar ratio 1:8:0.8, preparation method such as embodiment 1.
At room temperature by CO2Gas introduces 5ml above-mentioned solvent with the flow velocity of 10ml/min and passes through after absorption 1 hour
Weight detecting obtains CO2Adsorptive value be 0.256g/g.
Embodiment 4
A kind of eutectic solvent of the regenerated carbon dioxide removal of stable low energy consumption, by ammonium chloride, diethanol amine and the third three
Three component compositions of alcohol, molar ratio 1:7:0.08, preparation method such as embodiment 1.
At room temperature by CO2Gas introduces 5ml above-mentioned solvent with the flow velocity of 20ml/min and passes through after absorption 3 hours
Weight detecting obtains CO2Adsorptive value be 0.26g/g.
Embodiment 5
A kind of eutectic solvent of the regenerated carbon dioxide removal of stable low energy consumption, by ammonium chloride, triethanolamine and second two
Three component compositions of alcohol, molar ratio 1:4:0.1, preparation method is such as
Embodiment 1.
By CO under the conditions of 40 DEG C2Gas introduces 5ml above-mentioned solvent with the flow velocity of 30ml/min and passes through after absorption 1 hour
Weight detecting obtains CO2Adsorptive value be 0.18g/g.
Embodiment 6
A kind of eutectic solvent of the regenerated carbon dioxide removal of stable low energy consumption, by ammonium chloride, diethylenetriamine and third
Three component compositions of triol, molar ratio 1:6:0.3, preparation method such as embodiment 1.
At room temperature by CO2Gas introduces 5ml above-mentioned solvent with the flow velocity of 10ml/min and passes through after absorption 1 hour
Weight detecting obtains CO2Adsorptive value be 0.21g/g.Being then heated to temperature is 100 DEG C, maintains two hours, is then cooled to
Room temperature, system loss of weight 0.18g.Again by CO2Gas is introduced into heating eutectic solvent after cooling with the flow velocity of 10ml/min,
After absorption 1 hour, CO is obtained by weight detecting2Adsorptive value be 0.17g/g.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (6)
1. a kind of eutectic solvent of the regenerated carbon dioxide removal of stable low energy consumption, which is characterized in that the eutectic solvent
It is made of hydrogen bond donor and hydrogen bond receptor, the eutectic solvent is formed by hydrogen bond donor and hydrogen bond receptor by hydrogen bond association
Ternary eutectic solvent；
The hydrogen bond receptor is ammonium chloride or hydrochloric acid-ammonium chloride, and the hydrogen bond donor is made of organic amine and polyalcohol.
2. a kind of eutectic solvent of the stable regenerated carbon dioxide removal of low energy consumption as described in claim 1, which is characterized in that
The organic amine is ethanol amine, diethanol amine, triethanolamine, diethylenetriamine and N, any one in N- dimethyl-ethylenediamine
Kind.
3. a kind of eutectic solvent of the stable regenerated carbon dioxide removal of low energy consumption as described in claim 1, which is characterized in that
The polyalcohol is any one in pentaerythrite, ethylene glycol, glycerine and butanediol.
4. a kind of eutectic solvent of the stable regenerated carbon dioxide removal of low energy consumption as described in claim 1, feature exist
In the molar ratio of hydrogen bond donor, organic amine and polyalcohol three is 1:(4~10 in the ternary eutectic solvent): (0.01~
1)。
5. a kind of eutectic solvent of the stable regenerated carbon dioxide removal of low energy consumption as claimed in claim 4, feature exist
In the molar ratio of hydrogen bond donor, organic amine and polyalcohol three is 1:(4~8 in the ternary eutectic solvent): (0.1~
0.8)。
6. a kind of eutectic solvent of the stable regenerated carbon dioxide removal of low energy consumption as described in claim 1, feature exist
In the eutectic solvent is applied to CO2The absorption of gas captures.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811383768.6A CN109200760B (en) | 2018-11-20 | 2018-11-20 | Low-energy-consumption regenerated eutectic solvent for removing carbon dioxide stably |
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| CN201811383768.6A CN109200760B (en) | 2018-11-20 | 2018-11-20 | Low-energy-consumption regenerated eutectic solvent for removing carbon dioxide stably |
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| CN109200760A true CN109200760A (en) | 2019-01-15 |
| CN109200760B CN109200760B (en) | 2021-06-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448994A (en) * | 2019-08-16 | 2019-11-15 | 北京化工大学 | A kind of process of renewable functional amido eutectic solvent trapping NO |
| CN111534829A (en) * | 2020-05-22 | 2020-08-14 | 安徽工业大学 | Water-based electrolyte containing eutectic solvent and application thereof |
| CN111821813A (en) * | 2020-06-22 | 2020-10-27 | 江苏中江材料技术研究院有限公司 | Ternary eutectic solvent and method for adsorbing sulfur dioxide by using same |
| CN114653166A (en) * | 2020-12-22 | 2022-06-24 | 中国石油化工股份有限公司 | Composition containing carboxylic acid, preparation method and application thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110448994A (en) * | 2019-08-16 | 2019-11-15 | 北京化工大学 | A kind of process of renewable functional amido eutectic solvent trapping NO |
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| CN111534829A (en) * | 2020-05-22 | 2020-08-14 | 安徽工业大学 | Water-based electrolyte containing eutectic solvent and application thereof |
| CN111534829B (en) * | 2020-05-22 | 2022-04-19 | 安徽工业大学 | Water-based electrolyte containing eutectic solvent and application thereof |
| CN111821813A (en) * | 2020-06-22 | 2020-10-27 | 江苏中江材料技术研究院有限公司 | Ternary eutectic solvent and method for adsorbing sulfur dioxide by using same |
| CN114653166A (en) * | 2020-12-22 | 2022-06-24 | 中国石油化工股份有限公司 | Composition containing carboxylic acid, preparation method and application thereof |
| CN114653166B (en) * | 2020-12-22 | 2023-05-26 | 中国石油化工股份有限公司 | Carboxylic acid-containing composition, preparation method and application thereof |
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| CN109200760B (en) | 2021-06-04 |
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