CN116236882A - CO (carbon monoxide) 2 Composite amine absorbent and application thereof - Google Patents
CO (carbon monoxide) 2 Composite amine absorbent and application thereof Download PDFInfo
- Publication number
- CN116236882A CN116236882A CN202310110581.3A CN202310110581A CN116236882A CN 116236882 A CN116236882 A CN 116236882A CN 202310110581 A CN202310110581 A CN 202310110581A CN 116236882 A CN116236882 A CN 116236882A
- Authority
- CN
- China
- Prior art keywords
- amine absorbent
- benzylamine
- absorbent
- composite
- bza
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 150000001412 amines Chemical class 0.000 title claims abstract description 66
- 239000002250 absorbent Substances 0.000 title claims abstract description 61
- 230000002745 absorbent Effects 0.000 title claims abstract description 61
- 239000002131 composite material Substances 0.000 title claims abstract description 33
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims description 19
- 229910002091 carbon monoxide Inorganic materials 0.000 title claims description 13
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 claims abstract description 122
- IMUDHTPIFIBORV-UHFFFAOYSA-N aminoethylpiperazine Chemical compound NCCN1CCNCC1 IMUDHTPIFIBORV-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000000654 additive Substances 0.000 claims abstract description 9
- 230000000996 additive effect Effects 0.000 claims abstract description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000001569 carbon dioxide Substances 0.000 claims description 11
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 11
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 5
- -1 metallurgy Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000010248 power generation Methods 0.000 claims description 4
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 4
- 235000010265 sodium sulphite Nutrition 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000005272 metallurgy Methods 0.000 claims description 3
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 claims description 3
- PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical compound [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 claims description 2
- BHZRJJOHZFYXTO-UHFFFAOYSA-L potassium sulfite Chemical compound [K+].[K+].[O-]S([O-])=O BHZRJJOHZFYXTO-UHFFFAOYSA-L 0.000 claims description 2
- 235000019252 potassium sulphite Nutrition 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- WGCYRFWNGRMRJA-UHFFFAOYSA-N 1-ethylpiperazine Chemical compound CCN1CCNCC1 WGCYRFWNGRMRJA-UHFFFAOYSA-N 0.000 claims 1
- 125000003277 amino group Chemical group 0.000 claims 1
- 238000003795 desorption Methods 0.000 abstract description 39
- 238000010521 absorption reaction Methods 0.000 abstract description 33
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 12
- 238000002156 mixing Methods 0.000 description 9
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 238000010525 oxidative degradation reaction Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 125000003368 amide group Chemical group 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002803 fossil fuel Substances 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- LKUAPSRIYZLAAO-UHFFFAOYSA-N 1-(2-phenylethyl)piperazine Chemical compound C1CNCCN1CCC1=CC=CC=C1 LKUAPSRIYZLAAO-UHFFFAOYSA-N 0.000 description 2
- 229940058020 2-amino-2-methyl-1-propanol Drugs 0.000 description 2
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 description 2
- 150000003141 primary amines Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- KZEVSDGEBAJOTK-UHFFFAOYSA-N 1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-2-[5-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]-1,3,4-oxadiazol-2-yl]ethanone Chemical compound N1N=NC=2CN(CCC=21)C(CC=1OC(=NN=1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)=O KZEVSDGEBAJOTK-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
- 230000009919 sequestration Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000001926 trapping method Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a CO 2 The composite amine absorbent comprises benzylamine, amino ethyl piperazine and an additive, wherein the total amine concentration of the benzylamine and the amino ethyl piperazine is 2-5 moL/kg, and the molar ratio of the benzylamine to the amino ethyl piperazine is 0.5-5. The invention adopts the CO 2 Composite amine absorbent, solves the problem of CO as amine absorbent in the prior art 2 Low desorption amount, high desorption energy consumption, low absorption rate and desorption rate, poor oxidation degradation resistance and the like.
Description
Technical Field
The present invention relates to CO 2 The technical field of organic amine trapping, in particular to a CO 2 Composite amine absorbent and application thereof.
Background
The greenhouse effect and climate change caused by "carbon emissions" has become a worldwide problem. CO-rich production in fossil fuels in power generation, heating, steel, cement, transportation, chemical industry and other industries 2 Flue gas is the leading cause of the greenhouse effect and there is a considerable amount of fossil fuel to continue to be used for a considerable period of time. To reduce CO generated by fossil fuel combustion 2 Emissions, carbon capture, utilization, and sequestration technologies (CCUS) would be an important and irreplaceable emission abatement process.
Carbon dioxide is captured from flue gas by chemical absorption, low-temperature separation, solid adsorption, membrane separation, etc. For power plants, heat supply, ships and the like, the smoke emission is large and CO is high 2 At low concentrations, the chemisorption method is a preferred option. Chemical absorption method has been developed for decades, and has the advantages of mature technology, simple process and stable operation, and is an effective low CO 2 The carbon trapping method of the concentration flue gas, but the traditional amido aqueous solution (30 wt% ethanolamine MEA aqueous solution) process has the advantages of higher absorption speed, but the traditional amido aqueous solution process has the advantages of lower absorption capacity, strong corrosiveness, poorer cyclic desorption stability and high regeneration energy consumption (about 60-80 percent of total energy consumption), and hinders the commercialized development of the traditional amido aqueous solution process. In view of the characteristics of various structures, strong designability and the like of the organic amine, the research and development of novel organic amine absorbent is widely paid attention to.
However, each amine has inherent advantages and disadvantages, such as fast absorption speed but small absorption capacity of primary amine, large absorption capacity but slow absorption speed of tertiary amine, and large absorption capacity of polyamine partially containing primary amine and secondary amine, which has problems of poor cyclic desorption stability, poor anti-oxidative degradation capability, poor desorption, etc., therefore, development of a high-performance compound amine CO is needed 2 An absorbent.
Disclosure of Invention
The invention aims to provide a CO 2 Composite amine absorbent and application thereof, solving the problem of amine absorbent CO in the prior art 2 Low desorption amount, high desorption energy consumption, low absorption rate and desorption rate, poor oxidation degradation resistance and the like.
To achieve the above object, the present invention provides a CO 2 The composite amine absorbent comprises benzylamine, amino ethyl piperazine and an additive, wherein the total amine concentration of the benzylamine and the amino ethyl piperazine is 2-5 mol/kg, and the molar ratio of the benzylamine to the amino ethyl piperazine is 0.5-5.
Preferably, the additive comprises water.
Preferably, the additive comprises water and an antioxidant, wherein the antioxidant is one or more of sodium sulfite, potassium sulfite and ammonium sulfite.
Still preferably, the mass concentration of the antioxidant is 0.05% -0.5%.
Preferably, the additive further comprises a phase-splitting agent, wherein the phase-splitting agent is one or more of sulfolane and n-propanol.
Preferably, the temperature of carbon dioxide absorption is 30-60 ℃.
Preferably, the temperature of the desorbed carbon dioxide is 70 to 120 ℃.
CO (carbon monoxide) 2 The composite amine absorbent is applied to the collection, recovery and utilization of carbon dioxide in flue gas of coal-fired power generation, iron and steel, metallurgy, cement, petrochemical industry and glass industry and ship tail gas.
The invention has the beneficial effects that:
(1) The invention selects benzylamine (also called benzylamine, BZA) as absorbent, the Benzylamine (BZA) has larger negative enthalpy, and compared with ethanolamine (MEA), diethanolamine (DEA), methyldiethanolamine (MDEA) and 2-amino-2-methyl-1-propanol (AMP), the BZA has higher secondary reaction rate, lower activation energy and higher CO 2 Absorption rate; BZA has smaller reaction energy barrier and smaller heat capacity, thus having lower desorption energy consumption; the BZA has an aromatic structure, low corrosiveness and high stability, low corrosiveness to carbon steel and stainless steel, low self oxidative degradation rate, good biodegradability, small influence on environment, and in a word, the BZA has the advantages of high absorption rate, low heat capacity, high stability, low corrosiveness, easy biodegradation, small influence on environment and the like.
(2) The invention adopts the Amino Ethyl Piperazine (AEP) and the Benzylamine (BZA) to compound, the AEP is sterically hindered amine, the absorption rate and the desorption rate are equivalent to those of the BZA, the absorption capacity and the desorption capacity are much larger than those of the BZA and the price is higher than those of the BZA, therefore, the BZA and the AEP are selected to be compounded, the advantages are complementary, and the absorbent with good absorption performance, good desorption performance and low cost can be obtained
(3) Compared with the traditional amine absorbent (30 wt% of ethanolamine MEA aqueous solution), the amine absorbent of the invention fully exerts the advantages of BZA and AEP and has CO 2 Large desorption amount, high absorption rate and desorption rate, low corrosiveness, low cost, low regeneration energy consumption, low oxidative degradation rate and the like.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 shows a BZA-AEP composite amine absorbent CO with different proportions 2 Schematic representation of the absorption characteristics;
FIG. 2 shows a different proportions of BZA-AEP composite amine absorbent CO according to the invention 2 Schematic representation of desorption characteristics;
FIG. 3 shows a different proportions of BZA-AEP composite amine absorbent CO according to the invention 2 A schematic of the average desorption rate;
FIG. 4 is a graph of CO of a BZA-AEP composite amine absorbent of the present invention in various ratios 2 Fitting graphs of average absorption rate;
FIG. 5 is a graph of CO of a BZA-AEP composite amine absorbent of the present invention in various ratios 2 Fitting curve graph of desorption amount;
FIG. 6 is a graph of CO of a BZA-AEP composite amine absorbent of the present invention in various ratios 2 Fitting graphs of average desorption rates.
Detailed Description
The present invention will be further described with reference to examples in which various chemicals and reagents are commercially available unless otherwise specified.
Example 1
CO (carbon monoxide) 2 A complex amine absorbent comprising benzylamine, aminoethylpiperazine and water, wherein the total amine concentration of benzylamine and aminoethylpiperazineThe molar ratio BZA/AEP of the benzylamine to the aminoethylpiperazine is 1:3 at 3moL/kg, and the CO is prepared by mixing and homogenizing 2 A complex amine absorbent.
Example 2
CO (carbon monoxide) 2 The composite amine absorbent comprises benzylamine, aminoethylpiperazine and water, wherein the total amine concentration of the benzylamine and the aminoethylpiperazine is 3moL/kg, the molar ratio BZA/AEP of the benzylamine and the aminoethylpiperazine is 1:1, and the CO is prepared through the processes of mixing and homogenizing 2 A complex amine absorbent.
Example 3
CO (carbon monoxide) 2 The composite amine absorbent comprises benzylamine, amino ethyl piperazine and water, wherein the total amine concentration of the benzylamine and the amino ethyl piperazine is 3moL/kg, the molar ratio BZA/AEP of the benzylamine and the amino ethyl piperazine is 1.5:1, and the CO is prepared through the processes of mixing and homogenizing 2 A complex amine absorbent.
Example 4
CO (carbon monoxide) 2 The composite amine absorbent comprises benzylamine, aminoethylpiperazine, water and sodium sulfite, wherein the total amine concentration of the benzylamine and the aminoethylpiperazine is 3moL/kg, the molar ratio BZA/AEP of the benzylamine and the aminoethylpiperazine is 1:1, and the CO is prepared through the processes of mixing and homogenizing 2 A complex amine absorbent.
Example 5
CO (carbon monoxide) 2 The composite amine absorbent comprises benzylamine, aminoethylpiperazine, water, sodium sulfite and sulfolane, wherein the total amine concentration of the benzylamine and the aminoethylpiperazine is 3moL/kg, the molar ratio BZA/AEP of the benzylamine and the aminoethylpiperazine is 1:1, and the CO is prepared through the processes of mixing and homogenizing 2 A complex amine absorbent.
Example 6
CO (carbon monoxide) 2 The composite amine absorbent comprises benzylamine, aminoethylpiperazine and water, wherein the total amine concentration of the benzylamine and the aminoethylpiperazine is 3moL/kg, the molar ratio BZA/AEP of the benzylamine and the aminoethylpiperazine is 3:1, and the CO is prepared through the processes of mixing and homogenizing 2 A complex amine absorbent.
Comparative example 1
CO (carbon monoxide) 2 The absorbent comprises benzylamine BZA and water, wherein the total amine concentration of benzylamine is 3moL/kg, and CO is prepared by mixing and homogenizing 2 An absorbent.
Comparative example 2
CO (carbon monoxide) 2 The absorbent comprises phenethylpiperazine AEP and water, wherein the total amine concentration of the phenethyl piperazine is 3moL/kg, and CO is prepared by mixing and homogenizing 2 An absorbent.
Comparative example 3
CO (carbon monoxide) 2 The absorbent comprises ethanolamine MEA and water, wherein the total amine concentration of the aminoethylpiperazine is 3moL/kg, and CO is prepared by mixing and homogenizing 2 An absorbent.
Effect detection
CO of examples 1 to 3 and example 6 2 Composite amine absorbent and CO produced in comparative examples 1-3 2 The absorbent is subjected to carbon dioxide absorption and desorption experiments, the experiment method is a conventional carbon dioxide absorption and desorption experiment method, wherein the absorption temperature is 50 ℃, the desorption temperature is 100 ℃, and the experiment results are shown in table 1.
TABLE 1 Table of results of carbon dioxide absorption and desorption experiments
As can be seen from Table 1 in combination with FIGS. 1-6, the average absorption rate of the complex amine absorbent, CO 2 The desorption amount and the average desorption rate are better than those of single amine absorbent BZA and MEA, and CO is removed 2 The desorption amount is slightly lower than that of the single amine absorbent AEP, and the average absorption rate and the average desorption rate are better than those of the single amine absorbent AEP, namely the BZA and AEP in the composite amine absorbent are compounded to synergistically improve the CO of the absorbent 2 Absorption properties and analysis properties.
When the BZA/AEP molar ratio of the BZA-AEP composite amine absorbent is 1.5: at 1, CO 2 The desorption amount and the average desorption rate are both at high values, and compared with the traditional amine absorbent (i.e. comparative example 3), the average absorption rate is improved by 48%, the average desorption rate is improved by 161%, and particularly the desorption amount is improvedThe composite amine has high comprehensive performance of 120%, and can be used for collecting, recovering and utilizing carbon dioxide in industrial flue gas such as coal-fired power generation, iron and steel, metallurgy, cement, petrochemical industry, glass and the like and ship tail gas.
When the BZA/AEP molar ratio of the BZA-AEP composite amine absorbent is 1:1, the average desorption rate is at a maximum, CO 2 The desorption amount is also at a high value, with a molar ratio to BZA/AEP of 1.5:1, and the absorption rate is slightly lower, the desorption process can be accelerated by selecting the ratio, so that the desorption tower is more compact.
When the molar ratio of BZA/AEP of BZA-AEP complex amine is 3:1, the average absorption rate is maximized and CO 2 The molar ratio BZA/AEP of the desorption amount was 1.5:1, about 6%, about 20% decrease in average desorption rate, and considering that the AEP price is 50% higher than BZA, selecting this ratio can reduce the cost of the absorbent and can accelerate the absorption process, making the absorption column more compact.
To sum up, the CO of the invention 2 The composite amino absorbent fully exerts the advantages of BZA and AEP and has CO 2 Large desorption amount, high absorption rate and desorption rate, low corrosiveness, low cost, low regeneration energy consumption, low oxidative degradation rate and the like. The proportion of the BZA-AEP composite amine absorbent can be flexibly selected according to the actual situation by combining the fitting curves of fig. 4-6.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (7)
1. CO (carbon monoxide) 2 The composite amine absorbent is characterized in that: comprises benzylamine, aminoethylpiperazine and additives, wherein the total amine concentration of benzylamine and aminoethylpiperazine is 2-5 mol/kg, and the concentration of benzylamine and amino groups is as followsThe mol ratio of the ethylpiperazine is in the range of 0.5-5.
2. A CO according to claim 1 2 The composite amine absorbent is characterized in that: the additive includes water.
3. A CO according to claim 1 2 The composite amine absorbent is characterized in that: the additive comprises water and an antioxidant, wherein the antioxidant is one or more of sodium sulfite, potassium sulfite and ammonium sulfite.
4. A CO according to claim 1 2 The composite amine absorbent is characterized in that: the additive also comprises a phase-splitting agent, wherein the phase-splitting agent is one or more of sulfolane and n-propanol.
5. A CO according to claim 1 2 The composite amine absorbent is characterized in that: the temperature for absorbing carbon dioxide is 30-60 ℃.
6. A CO according to claim 1 2 The composite amine absorbent is characterized in that: the temperature for desorbing carbon dioxide is 70-120 ℃.
7. A CO according to any one of claims 1-6 2 The application of the composite amine absorbent is characterized in that: the method is applied to the collection, recovery and utilization of carbon dioxide in the flue gas of coal-fired power generation, iron and steel, metallurgy, cement, petrochemical industry and glass industry and the tail gas of ships.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310110581.3A CN116236882A (en) | 2023-02-09 | 2023-02-09 | CO (carbon monoxide) 2 Composite amine absorbent and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310110581.3A CN116236882A (en) | 2023-02-09 | 2023-02-09 | CO (carbon monoxide) 2 Composite amine absorbent and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116236882A true CN116236882A (en) | 2023-06-09 |
Family
ID=86629122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310110581.3A Pending CN116236882A (en) | 2023-02-09 | 2023-02-09 | CO (carbon monoxide) 2 Composite amine absorbent and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116236882A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014148658A1 (en) * | 2013-03-20 | 2014-09-25 | 한국에너지기술연구원 | Method for regenerating amine absorbent using proton donor mixture |
| CN105381686A (en) * | 2014-08-29 | 2016-03-09 | 联邦科学及工业研究组织 | Absorbent solution for absorption of acid gas and process for absorption of acid gas |
| US20190291044A1 (en) * | 2017-05-22 | 2019-09-26 | Commonwealth Scientific And Industrial Research Organisation | Process and system for capture of carbon dioxide |
| JP2021058844A (en) * | 2019-10-07 | 2021-04-15 | 東ソー株式会社 | Amine composition |
| WO2022133530A1 (en) * | 2020-12-22 | 2022-06-30 | Commonwealth Scientific And Industrial Research Organisation | Absorbent for acid gas comprising hypercrosslinked polymer |
| CN114988749A (en) * | 2022-07-18 | 2022-09-02 | 北京工业大学 | Resource utilization method for capturing carbon dioxide |
-
2023
- 2023-02-09 CN CN202310110581.3A patent/CN116236882A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014148658A1 (en) * | 2013-03-20 | 2014-09-25 | 한국에너지기술연구원 | Method for regenerating amine absorbent using proton donor mixture |
| CN105381686A (en) * | 2014-08-29 | 2016-03-09 | 联邦科学及工业研究组织 | Absorbent solution for absorption of acid gas and process for absorption of acid gas |
| US20190291044A1 (en) * | 2017-05-22 | 2019-09-26 | Commonwealth Scientific And Industrial Research Organisation | Process and system for capture of carbon dioxide |
| JP2021058844A (en) * | 2019-10-07 | 2021-04-15 | 東ソー株式会社 | Amine composition |
| WO2022133530A1 (en) * | 2020-12-22 | 2022-06-30 | Commonwealth Scientific And Industrial Research Organisation | Absorbent for acid gas comprising hypercrosslinked polymer |
| CN114988749A (en) * | 2022-07-18 | 2022-09-02 | 北京工业大学 | Resource utilization method for capturing carbon dioxide |
Non-Patent Citations (1)
| Title |
|---|
| XUDONG MAO ET AL.: "Study on Benzylamine(BZA) and Aminoethylpiperazine(AEP) Mixed Absorbent on Ship-Based Carbon Capture", 《MOLECULES》, vol. 28, no. 6, 15 March 2023 (2023-03-15), pages 1 - 13 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Asghar et al. | Review on the progress in emission control technologies for the abatement of CO2, SOx and NOx from fuel combustion | |
| EP1813343B1 (en) | Method for recovery of CO2 from gas streams | |
| Spigarelli et al. | Opportunities and challenges in carbon dioxide capture | |
| US20200368675A1 (en) | Low energy consumption anhydrous co2 phase change absorption agent, and regeneration method and application thereof | |
| CN107715845B (en) | Flue gas desulfurization and denitrification adsorbent and preparation and use methods thereof | |
| CN105289209A (en) | Mixed organic solution for trapping CO2 and SO2 acid gas through phase transformation | |
| CN101537340A (en) | Smoke CO*absorbent | |
| CN111298616A (en) | Desulfurized slag regenerated CO2Method for trapping solvent | |
| Feron | The potential for improvement of the energy performance of pulverized coal fired power stations with post-combustion capture of carbon dioxide | |
| CN101703875A (en) | Oxidizing method for removing gaseous elemental mercury in boiler fume | |
| CN112316669B (en) | Organic amine desulfurizing agent and preparation method and application thereof | |
| Weiland et al. | Post-combustion CO2 capture with amino-acid salts | |
| CN116870664A (en) | Composite absorption liquid for capturing ionic liquid by using flue gas and carbon dioxide | |
| CN116236882A (en) | CO (carbon monoxide) 2 Composite amine absorbent and application thereof | |
| CN102658019A (en) | Composite activating potassium carbonate solution for removing carbon dioxide from flue gas | |
| CN112138511A (en) | Non-water-based amine solution for capturing carbon dioxide in mixed gas | |
| CN102078743B (en) | Improved CO2 inorganic absorbing agent | |
| David et al. | Exhaust gas treatment technologies for pollutant emission abatement from fossil fuel power plants | |
| CN101822939A (en) | Absorption liquid of NO in coal-fired flue gas, preparation method and application thereof | |
| KR20050017749A (en) | Absorbent for removing carbon dioxide from flue gas | |
| CN117463121A (en) | Efficient absorbent for capturing carbon dioxide after combustion of natural gas power plant and application thereof | |
| CN117619127A (en) | Antioxidant compound decarbonization solvent and application and regeneration method thereof | |
| Akeeb et al. | CO2 Capture with Potassium Carbonate and Alcohol | |
| Padurean et al. | TECHNICAL ASSESSMENT OF CO 2 CAPTURE USING ALKANOLAMINES SOLUTIONS. | |
| CN117504536A (en) | For low CO 2 Preparation and application of partial pressure flue gas compound alcohol amine absorbent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |