CN101637689B - Absorption solvent used for catching or separating carbon dioxide - Google Patents
Absorption solvent used for catching or separating carbon dioxide Download PDFInfo
- Publication number
- CN101637689B CN101637689B CN2009100766039A CN200910076603A CN101637689B CN 101637689 B CN101637689 B CN 101637689B CN 2009100766039 A CN2009100766039 A CN 2009100766039A CN 200910076603 A CN200910076603 A CN 200910076603A CN 101637689 B CN101637689 B CN 101637689B
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- CN
- China
- Prior art keywords
- lyosoption
- dimethylamino
- carbon dioxide
- separating carbon
- absorption
- 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.)
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- 239000002904 solvent Substances 0.000 title claims abstract description 25
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 15
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 12
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- WFCSWCVEJLETKA-UHFFFAOYSA-N 2-piperazin-1-ylethanol Chemical compound OCCN1CCNCC1 WFCSWCVEJLETKA-UHFFFAOYSA-N 0.000 claims abstract description 5
- -1 3-dimethylamino-1-propyl Chemical group 0.000 claims description 19
- 238000000926 separation method Methods 0.000 claims description 11
- 238000005516 engineering process Methods 0.000 claims description 10
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 claims description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 4
- 125000001741 organic sulfur group Chemical group 0.000 claims description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 2
- 238000005262 decarbonization Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims description 2
- 238000007701 flash-distillation Methods 0.000 claims description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 20
- 239000000126 substance Substances 0.000 abstract description 5
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 239000012752 auxiliary agent Substances 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000001257 hydrogen Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 150000003512 tertiary amines Chemical class 0.000 abstract description 2
- PYSGFFTXMUWEOT-UHFFFAOYSA-N 3-(dimethylamino)propan-1-ol Chemical compound CN(C)CCCO PYSGFFTXMUWEOT-UHFFFAOYSA-N 0.000 abstract 3
- WUGQZFFCHPXWKQ-UHFFFAOYSA-N Propanolamine Chemical compound NCCCO WUGQZFFCHPXWKQ-UHFFFAOYSA-N 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 229910017053 inorganic salt Inorganic materials 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 15
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 14
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 description 6
- 229940043276 diisopropanolamine Drugs 0.000 description 6
- 230000008676 import Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000003595 mist Substances 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 239000003112 inhibitor Substances 0.000 description 5
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 5
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229960001760 dimethyl sulfoxide Drugs 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 229940058020 2-amino-2-methyl-1-propanol Drugs 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 150000002169 ethanolamines Chemical class 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Gas Separation By Absorption (AREA)
Abstract
The invention belongs to the field of chemical materials, and particularly relates to an absorption solvent which is used for collecting or separating carbon dioxide from gas mixture or liquefied gas. The solvent comprises 3-dimethylamino-1-propanol (abbreviated as DMA1P) with a content range of 10-70 wt% and other components with a total content range of 30-90 wt%, wherein, the other components comprise one or more of monoethanol amine, n-propanol amine, hydroxyethyl piperazine, water, physical solvent, inorganic salt or auxiliary agent. The solubility of carbon dioxide in 3-dimethylamino-1-propanol is high and the deabsorption effect is good; simultaneously the reaction heat of the absorption reaction is lower and the energy consumption for collecting or separating carbon dioxide is lower; meanwhile, 3-dimethylamino-1-propanol is a tertiary amine, the carbon chain is a linear chain, six-membered ring with better molecular stability can be formed through hydrogen bond, and the degradation loss of solvent in the use process can be reduced substantially.
Description
Technical field
The invention belongs to chemical material field, be specifically related to a kind of from admixture of gas or liquefied gas, the capture or the lyosoption of separating carbon dioxide.
Background technology
CO
2The isothermal chamber gas purging is a principal element that causes climate change, how from being rich in CO
2Admixture of gas or liquefied gas in, capture or separation of C O
2Just seem very important.These admixture of gas comprise flue gas, refinery gas, natural gas, liquefied gas, synthesis gas, conversion gas and hydrogen or the like.Contain 5%～80% CO in the admixture of gas
2, other main gas composition comprises N
2, O
2, CO, H
2, CH
4, C
2H
6, SO
2, H
2S and organic sulfur CH
3S, COS etc.; The pressure range of gas is big, and (50～9000kPa), suitable chemical absorbing or the Chemical Physics composite absorbent method of adopting captures separation of C O
2Component.
Comparatively ripe chemical absorption method captures separation of C O in the industry both at home and abroad at present
2Technology MEA method (MEA), diethanolamine method (DEA), diisopropanolamine process (DIPA) and methyl diethanolamine method (MDEA) are arranged.In order to improve absorbent solution to CO
2Infiltration rate, so, add infiltration rate solvent such as MEA (MEA) and piperazine (PZ) etc. faster, form the method for absorbing and separating of some modified forms to diisopropanolamine (DIPA) (DIPA), the methyl diethanolamine slower solvents of infiltration rate such as (MDEA).Above-mentioned solvent all is the basis with the monoethanolamine, and wherein the carbon number between amino and the hydroxyl is 2 (comprising DIPA).In order further to cut down the consumption of energy, 2-amino-2-methyl-1-propanol (AMP) bulky amine method is because it is to CO
2Solubility is high, desorption effect is better, and the circulating load that absorbs desorb is higher, has obtained some application.Carbon number between its amino and the hydroxyl also is 2, also is the derivative of monoethanolamine.But because the special construction of these bulky amine causes degraded in use many, use cost is still higher.
Summary of the invention
The present invention provides the lyosoption of a kind of capture or separating carbon dioxide, it is characterized in that said solvent comprises that content range is 3-dimethylamino-1-propyl alcohol (DMA1P) of 10～70wt%, and the total content scope is other components of 30～90wt%.
Said other components comprise: one or more in MEA, normal propyl alcohol amine, hydroxyethyl piperazine, water, physical solvent, inorganic salts or the auxiliary agent.
Said physical solvent mainly consist of in sulfolane, methyl-sulfoxide, N-methyl pyrrolidone, methyl alcohol, the ethanol one or more.
Said inorganic salts mainly consist of K
2CO
3, Na
2CO
3Or their mixture.
Said auxiliary agent mainly consist of in corrosion inhibitor, antifoaming agent, the antisludging agent one or more.
Said lyosoption is used for capturing or separation of C O
2Technology comprise: the decarbonization process of conventional absorption, flash distillation, heat exchange, desorb; Or the technology that after heat exchange, gets into the stage casing, absorption tower from desorber stage casing extraction semi lean solution; Or multistage absorbs the technology of multistage desorb, or is used for the technology of absorption and separation sulfur dioxide, hydrogen sulfide and organic sulfurs such as cos and methyl mercaptan simultaneously.
Said lyosoption is used for capturing or separation of C O
2Process conditions comprise: the temperature that lyosoption enters the absorption tower is 10～80 ℃; The temperature of lean solution is 80～150 ℃ at the bottom of the regenerator; Pressure at the bottom of the regenerator is 50～500kPa.
Beneficial effect of the present invention is: 3-dimethylamino-1-propyl alcohol is big to the solubility of carbon dioxide, and desorption effect is good, and the reaction heat of absorption reaction is lower simultaneously, and energy consumption is lower concerning capturing separating carbon dioxide.Dimethylamino-the 1-propyl alcohol is a kind of tertiary amine to 3-simultaneously, and carbochain is a straight chain, can form 6 yuan of rings through hydrogen bond, and better molecular can reduce the degraded loss of solvent in use significantly.
The specific embodiment
Embodiment 1
Get three parts of 3-dimethylamino-1-aqueous propanol solution, wherein, the content of 3-dimethylamino-1-propyl alcohol is 10wt%, and all the other are by MEA, methyl-sulfoxide, K
2CO
3, the solvent formed of corrosion inhibitor and water.With temperature is 40 ℃, gas phase CO
2Partial pressure is the CO that contains of 9kPa, 45kPa, 120kPa
2And N
2Mist import three parts of said solvents respectively, after gas-liquid two-phase reaches balance, CO in the lyosoption
2With CO in the mol ratio of 3-dimethylamino-1-propyl alcohol (DMA1P) and the lyosoption
2Solubility referring to table 1.
The 3-dimethylamino of 40 ℃ in table 1,10wt%-1-aqueous propanol solution experimental result
Embodiment 2
Get three parts of 3-dimethylamino-1-aqueous propanol solution, wherein, the content of 3-dimethylamino-1-propyl alcohol is 10wt%, and all the other are by MEA, methyl-sulfoxide, Na
2CO
3, the solvent formed of corrosion inhibitor and water.With temperature is 120 ℃, gas phase CO
2Partial pressure is the CO that contains of 21kPa, 70kPa, 115kPa
2And N
2Mist import three parts of said solvents respectively, after gas-liquid two-phase reaches balance, CO in the lyosoption
2With CO in the mol ratio of 3-dimethylamino-1-propyl alcohol (DMA1P) and the lyosoption
2Solubility referring to table 2.
The 3-dimethylamino of 120 ℃ in table 2,10wt%-1-aqueous propanol solution experimental result
Embodiment 3
Get three parts of 3-dimethylamino-1-aqueous propanol solution, wherein, the content of 3-dimethylamino-1-propyl alcohol is 25wt%, and all the other are by normal propyl alcohol amine, sulfolane, K
2CO
3, the solvent formed of corrosion inhibitor and water.With temperature is 40 ℃, gas phase CO
2Partial pressure is the CO that contains of 10kPa, 19kPa, 70kPa
2And N
2Mist import three parts of said solvents respectively, after gas-liquid two-phase reaches balance, CO in the lyosoption
2With CO in the mol ratio of 3-dimethylamino-1-propyl alcohol (DMA1P) and the lyosoption
2Solubility referring to table 3.
The 3-dimethylamino of 40 ℃ in table 3,25wt%-1-aqueous propanol solution experimental result
Embodiment 4
Get three parts of 3-dimethylamino-1-aqueous propanol solution, wherein, the content of 3-dimethylamino-1-propyl alcohol is 25wt%, and all the other are by normal propyl alcohol amine, sulfolane, K
2CO
3, the solvent formed of corrosion inhibitor and water.With temperature is 120 ℃, gas phase CO
2Partial pressure is the CO that contains of 31kPa, 65kPa, 126kPa
2And N
2Mist import three parts of said solvents respectively, after gas-liquid two-phase reaches balance, CO in the lyosoption
2With CO in the mol ratio of 3-dimethylamino-1-propyl alcohol (DMA1P) and the lyosoption
2Solubility referring to table 4.
The 3-dimethylamino of 120 ℃ in table 4,25wt%-1-aqueous propanol solution experimental result
Embodiment 5
Get three parts of 3-dimethylamino-1-aqueous propanol solution, wherein, the content of 3-dimethylamino-1-propyl alcohol is 70wt%, and all the other are by hydroxyethyl piperazine, sulfolane, K
2CO
3, the solvent formed of antisludging agent and water.With temperature is 40 ℃, gas phase CO
2Partial pressure is the CO that contains of 7kPa, 36kPa, 135kPa
2And N
2Mist import three parts of said solvents respectively, after gas-liquid two-phase reaches balance, CO in the lyosoption
2With CO in the mol ratio of 3-dimethylamino-1-propyl alcohol (DMA1P) and the lyosoption
2Solubility referring to table 5.
The 3-dimethylamino of 40 ℃ in table 5,70wt%-1-aqueous propanol solution experimental result
Embodiment 6
Get three parts of 3-dimethylamino-1-aqueous propanol solution, wherein, the content of 3-dimethylamino-1-propyl alcohol is 70wt%, and all the other are by hydroxyethyl piperazine, sulfolane, K
2CO
3, the solvent formed of antisludging agent and water.With temperature is 120 ℃, gas phase CO
2Partial pressure is the CO that contains of 27kPa, 50kPa, 124kPa
2And N
2Mist import three parts of said solvents respectively, after gas-liquid two-phase reaches balance, CO in the lyosoption
2With CO in the mol ratio of 3-dimethylamino-1-propyl alcohol (DMA1P) and the lyosoption
2Solubility referring to table 6.
The 3-dimethylamino of 120 ℃ in table 6,70wt%-1-aqueous propanol solution experimental result
Can find out from embodiment 1 and embodiment 2, at 40 ℃ of following CO
2Dividing potential drop absorbs during for 45kPa, at 120 ℃ of following CO
2Dividing potential drop is carried out desorb during for 70kPa, and the aqueous solution of 1 liter of 10%DMA1P can absorption and separation CO
2Amount be 38-10=28 gram.
Can find out from embodiment 3 and embodiment 4, at 40 ℃ of following CO
2Dividing potential drop absorbs during for 19kPa, at 120 ℃ of following CO
2Dividing potential drop is carried out desorb during for 65kPa, and the aqueous solution of 1 liter of 25%DMA1P can absorption and separation CO
2Amount be 80-22=58 gram.
Can find out from embodiment 5 and embodiment 6, at 40 ℃ of following CO
2Dividing potential drop absorbs during for 36kPa, at 120 ℃ of following CO
2Dividing potential drop is carried out desorb during for 50kPa, and the aqueous solution of 1 liter of 70%DMA1P can absorb.
Claims (3)
1. one kind captures or the lyosoption of separating carbon dioxide; It is characterized in that; Said solvent comprises that content range is 3-dimethylamino-1-propyl alcohol of 10～70wt%, and the total content scope is in MEA, normal propyl alcohol amine, hydroxyethyl piperazine and the water of 30～90wt% one or more.
2. the lyosoption of a kind of capture according to claim 1 or separating carbon dioxide is characterized in that said lyosoption is used for capturing or separation of C O
2Technology comprise: the decarbonization process of conventional absorption, flash distillation, heat exchange, desorb; Or the technology that after heat exchange, gets into the stage casing, absorption tower from desorber stage casing extraction semi lean solution; Or multistage absorbs the technology of multistage desorb, or is used for while absorption and separation sulfur dioxide, hydrogen sulfide and comprises cos and the technology of the organic sulfur of methyl mercaptan.
3. the lyosoption of a kind of capture according to claim 2 or separating carbon dioxide is characterized in that said lyosoption is used for capturing or separation of C O
2Process conditions comprise: the temperature that lyosoption enters the absorption tower is 10～80 ℃; The temperature of lean solution is 80～150 ℃ at the bottom of the regenerator; Pressure at the bottom of the regenerator is 50～500kPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100766039A CN101637689B (en) | 2009-01-09 | 2009-01-09 | Absorption solvent used for catching or separating carbon dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100766039A CN101637689B (en) | 2009-01-09 | 2009-01-09 | Absorption solvent used for catching or separating carbon dioxide |
Publications (2)
| Publication Number | Publication Date |
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| CN101637689A CN101637689A (en) | 2010-02-03 |
| CN101637689B true CN101637689B (en) | 2012-03-28 |
Family
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Family Applications (1)
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|---|---|---|---|
| CN2009100766039A Active CN101637689B (en) | 2009-01-09 | 2009-01-09 | Absorption solvent used for catching or separating carbon dioxide |
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| Country | Link |
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| CN (1) | CN101637689B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804286B (en) * | 2010-02-10 | 2012-05-23 | 清华大学 | Mixed absorbing agent for catching or separating carbon dioxide |
| CN102000474A (en) * | 2010-10-29 | 2011-04-06 | 清华大学 | Mixed absorbent for gathering or separating carbon dioxide |
| RU2014107703A (en) * | 2011-07-28 | 2015-09-10 | ДАУ ГЛОБАЛ ТЕКНОЛОДЖИЗ ЭлЭлСи | AMINOPYRIDINE DERIVATIVES FOR REMOVING HYDROGEN SULPHIDE FROM A GAS MIXTURE |
| CN104492226B (en) * | 2014-12-12 | 2016-08-24 | 大连理工大学 | A kind of non-aqueous decarbonizing solution for trapping carbon dioxide in gas mixture and application thereof |
| CN105854521B (en) * | 2016-05-20 | 2017-02-08 | 湖南大学 | Application of 4-((2-ethoxyl)(methyl)amino)-2-butanol in aspect of acid gas absorption |
| CN105854522B (en) * | 2016-05-20 | 2017-02-08 | 湖南大学 | Application of 4-((2-ethoxyl)(methyl)amino)-2-butanol in aspect of acid gas absorption |
| CN110542598A (en) * | 2018-05-29 | 2019-12-06 | 陈志勇 | Carbon dioxide collection method |
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| EP0879631B1 (en) * | 1994-10-06 | 2002-05-29 | The Kansai Electric Power Co., Inc. | Process for removing carbon dioxide from gases |
| US20060162559A1 (en) * | 2002-03-12 | 2006-07-27 | Norbert Asprion | Method for deacidifying a fluid stream and washing liquid used in such a method |
| CN101091864A (en) * | 2007-05-15 | 2007-12-26 | 大连理工大学 | Compound decarburization solution for recovering carbon dioxide in gas mixture |
| CN101238064A (en) * | 2005-07-18 | 2008-08-06 | 联合工程公司 | A method for recovery of high purity carbon dioxide from a gaseous source comprising nitrogen compounds |
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- 2009-01-09 CN CN2009100766039A patent/CN101637689B/en active Active
Patent Citations (5)
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| CN1055872C (en) * | 1992-03-14 | 2000-08-30 | 南京化学工业(集团)公司研究院 | Removing carbon dioxide in mixed gas by composite activating agent |
| EP0879631B1 (en) * | 1994-10-06 | 2002-05-29 | The Kansai Electric Power Co., Inc. | Process for removing carbon dioxide from gases |
| US20060162559A1 (en) * | 2002-03-12 | 2006-07-27 | Norbert Asprion | Method for deacidifying a fluid stream and washing liquid used in such a method |
| CN101238064A (en) * | 2005-07-18 | 2008-08-06 | 联合工程公司 | A method for recovery of high purity carbon dioxide from a gaseous source comprising nitrogen compounds |
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