CN101264412A - Decarburization solvent and preparation thereof - Google Patents
Decarburization solvent and preparation thereof Download PDFInfo
- Publication number
- CN101264412A CN101264412A CNA2008100247352A CN200810024735A CN101264412A CN 101264412 A CN101264412 A CN 101264412A CN A2008100247352 A CNA2008100247352 A CN A2008100247352A CN 200810024735 A CN200810024735 A CN 200810024735A CN 101264412 A CN101264412 A CN 101264412A
- Authority
- CN
- China
- Prior art keywords
- content
- solvent
- decarbonization solvent
- activator
- defoamer
- 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
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
Landscapes
- Gas Separation By Absorption (AREA)
Abstract
The invention relates to a decarburization solvent, which comprises n-methyldiethanolamine, defoamer and activator; wherein, the content of the n-methyldiethanolamine is 80 to 90wt% in the decarburization solvent; the content of the defoamer is 0.1 to 0.5wt% in the decarburization solvent; the content of the activator is 10 to 20wt% in the decarburization solvent. The decarburization solvent has the advantages of being applicable to the removing of carbon dioxide in the mixed gas of syngas, city gas or natural gas, removing the sulphide, large absorption capacity, high degree of purification, and low regeneration energy consumption.
Description
Technical field
The present invention relates to the gas decarbonization technical field, especially a kind of decarbonization solvent and preparation method thereof.
Background technology
As everyone knows, from the gas that contains carbon dioxide, remove the technology that carbon dioxide is a kind of industrial extensive use.For example in natural gas, oil gas town gas and synthesis gas processing procedure, all need to remove carbon dioxide.On the other hand, carbon dioxide itself is a kind of essential industry raw material, can be used for making urea and organic synthesis raw material.
Since BASF AG after last century, the seventies was developed the piperazine Activated MDEA Decarbonizing Technology, because it has low regeneration energy consumption and high gas purification degree, solution are not degraded, to advantages such as carbon steel do not corrode, Activated MDEA Decarbonizing Technology worldwide is used widely.Become the low energy consumption chemical method decarburization technique of extensive use in the world so far.
So-called activation MDEA solution is actually a small amount of activator of adding in certain MDEA aqueous solution, improves the speed of MDEA solution absorption and desorption carbon dioxide, to keep lower regeneration energy consumption.About adding the research work of activator in the MDEA aqueous solution, be the focus that each researcher pays close attention to all the time.
In sum, though existing MDEA decarbonizing solution has its advantage separately, its comprehensive decarburization capacity still leaves some room for improvement.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of N monomethyl diethanol amine (MDEA) decarbonizing solution of improvement is provided, overcomes the defective of the comprehensive decarburization capacity deficiency of existing MDEA decarbonizing solution existence.
The technical solution adopted for the present invention to solve the technical problems is: a kind of decarbonization solvent, contain N methyldiethanol amine, also comprise defoamer and activator, wherein said N methyldiethanol amine content in described decarbonization solvent is 80～90wt%, the content of described defoamer in described decarbonization solvent is 0.1～0.5wt%, and the content of described activator in described decarbonization solvent is 10～20wt%.
According to another embodiment of the present invention, decarbonization solvent comprises that further described activator is diethanol amine, monoethanolamine, sterically hindered amines, piperazine or both or both above mixtures.
According to another embodiment of the present invention, decarbonization solvent comprises that further described defoamer is a dimethicone.
A kind of preparation method of decarbonization solvent comprises following preparation process:
A. add in reactor that content is the N methyldiethanol amine of 80～90wt% in the decarbonization solvent;
B. in reactor, add content in the decarbonization solvent successively and be that content is 10～20wt% activator in the defoamer of 0.1～0.5wt% and the decarbonization solvent;
C. continue to mix liquid and evenly the invention has the beneficial effects as follows to it, decarbonization solvent of the present invention can be used for removing of carbon dioxide in the mists such as synthesis gas, town gas or natural gas, also can remove sulfide simultaneously.This decarbonizing liquid has that absorptive capacity is big, degree of purification is high, the regeneration low power consumption and other advantages.
The specific embodiment
The invention will be further described below by embodiment, and its purpose is to be better understanding content of the present invention.
A kind of decarbonization solvent, contain N methyldiethanol amine, also comprise defoamer and activator, wherein said N methyldiethanol amine content in described decarbonization solvent is 80～90wt%, the content of described defoamer in described decarbonization solvent is 0.1～0.5wt%, and the content of described activator in described decarbonization solvent is 10～20wt%.In addition, activator can for diethanol amine, monoethanolamine, sterically hindered amines, piperazine or both or both more than mixture.Defoamer is a dimethicone.
Prepare above-mentioned decarbonization solvent and need following steps: add in reactor at first that content is the N methyldiethanol amine of 80～90wt% in the decarbonization solvent, then, add successively in reactor that content is 10～20wt% activator in defoamer that content in the decarbonization solvent is 0.1～0.5wt% and the decarbonization solvent; At last, it is even to it to mix liquid.Use this decarbonization solvent can make the degree of purification height of carbon dioxide, even can be with below the carbon dioxide eliminating to 0.1%, even less than 50ppm.Also can remove sulfide simultaneously, the absorption efficiency height of solvent, the heat energy consumption is low, and solvent loss is few.
Claims (4)
1. decarbonization solvent, contain N methyldiethanol amine, it is characterized in that: also comprise defoamer and activator, wherein said N methyldiethanol amine content in described decarbonization solvent is 80～90wt%, the content of described defoamer in described decarbonization solvent is 0.1～0.5wt%, and the content of described activator in described decarbonization solvent is 10～20wt%.
2. decarbonization solvent according to claim 1 is characterized in that: described activator is diethanol amine, monoethanolamine, sterically hindered amines, piperazine or both or both above mixtures.
3. decarbonization solvent according to claim 2 is characterized in that: described defoamer is a dimethicone.
4. the preparation method of a decarbonization solvent is characterized in that comprising following preparation process:
A. add in reactor that content is the N methyldiethanol amine of 80～90wt% in the decarbonization solvent;
B. in reactor, add content in the decarbonization solvent successively and be that content is 10～20wt% activator in the defoamer of 0.1～0.5wt% and the decarbonization solvent;
C. it is even to it to continue to mix liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100247352A CN101264412A (en) | 2008-04-30 | 2008-04-30 | Decarburization solvent and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100247352A CN101264412A (en) | 2008-04-30 | 2008-04-30 | Decarburization solvent and preparation thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101264412A true CN101264412A (en) | 2008-09-17 |
Family
ID=39987237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100247352A Pending CN101264412A (en) | 2008-04-30 | 2008-04-30 | Decarburization solvent and preparation thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101264412A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101816878A (en) * | 2010-04-30 | 2010-09-01 | 四川省精细化工研究设计院 | Novel high-efficient compound decarbonization solvent |
| CN101822932A (en) * | 2010-06-12 | 2010-09-08 | 中国石油集团工程设计有限责任公司 | Composite decarbonization solvent for eliminating carbon dioxide in natural gases |
| CN102899095A (en) * | 2012-08-29 | 2013-01-30 | 中国科学院过程工程研究所 | High-performance decarburization compound solvent for coke oven gas or natural gas, and preparation method thereof |
| CN104437005A (en) * | 2014-12-11 | 2015-03-25 | 中煤科工集团重庆研究院有限公司 | Composite absorbent for decarbonization of coal bed gas |
| CN106854478A (en) * | 2015-12-08 | 2017-06-16 | 中国石油化工股份有限公司 | A kind of absorbing liquid containing ionic liquid activator |
| CN107376615A (en) * | 2017-07-12 | 2017-11-24 | 中国石油集团工程设计有限责任公司 | A kind of highly efficiency compositional desulfurization and decarburization solvent and its application |
| CN108261887A (en) * | 2018-03-12 | 2018-07-10 | 崔静思 | A kind of method that carbinol-modified low-temp methanol is washed |
| CN108722115A (en) * | 2017-04-18 | 2018-11-02 | 中国石油化工股份有限公司 | One kind removing CO from gaseous mixture2Special absorptive liquid |
| CN112774418A (en) * | 2019-11-07 | 2021-05-11 | 江苏汉光实业股份有限公司 | Deep desulfurization and decarburization solvent and preparation method thereof |
-
2008
- 2008-04-30 CN CNA2008100247352A patent/CN101264412A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101816878A (en) * | 2010-04-30 | 2010-09-01 | 四川省精细化工研究设计院 | Novel high-efficient compound decarbonization solvent |
| CN101816878B (en) * | 2010-04-30 | 2012-07-04 | 四川省精细化工研究设计院 | Novel high-efficient compound decarbonization solvent |
| CN101822932A (en) * | 2010-06-12 | 2010-09-08 | 中国石油集团工程设计有限责任公司 | Composite decarbonization solvent for eliminating carbon dioxide in natural gases |
| CN101822932B (en) * | 2010-06-12 | 2013-01-02 | 中国石油集团工程设计有限责任公司 | Composite decarbonization solvent for eliminating carbon dioxide in natural gases |
| CN102899095A (en) * | 2012-08-29 | 2013-01-30 | 中国科学院过程工程研究所 | High-performance decarburization compound solvent for coke oven gas or natural gas, and preparation method thereof |
| CN104437005A (en) * | 2014-12-11 | 2015-03-25 | 中煤科工集团重庆研究院有限公司 | Composite absorbent for decarbonization of coal bed gas |
| CN106854478A (en) * | 2015-12-08 | 2017-06-16 | 中国石油化工股份有限公司 | A kind of absorbing liquid containing ionic liquid activator |
| CN108722115A (en) * | 2017-04-18 | 2018-11-02 | 中国石油化工股份有限公司 | One kind removing CO from gaseous mixture2Special absorptive liquid |
| CN107376615A (en) * | 2017-07-12 | 2017-11-24 | 中国石油集团工程设计有限责任公司 | A kind of highly efficiency compositional desulfurization and decarburization solvent and its application |
| CN107376615B (en) * | 2017-07-12 | 2019-10-11 | 中国石油工程建设有限公司 | A kind of highly efficiency compositional desulfurization and decarburization solvent and its application |
| CN108261887A (en) * | 2018-03-12 | 2018-07-10 | 崔静思 | A kind of method that carbinol-modified low-temp methanol is washed |
| CN112774418A (en) * | 2019-11-07 | 2021-05-11 | 江苏汉光实业股份有限公司 | Deep desulfurization and decarburization solvent and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101264412A (en) | Decarburization solvent and preparation thereof | |
| CN100493673C (en) | Compound decarburization solution for recovering carbon dioxide in gas mixture | |
| Yang et al. | Progress of CCUS technology in the iron and steel industry and the suggestion of the integrated application schemes for China | |
| CN102151476B (en) | Method for removing hydrogen sulfide in gas phase through oxidization under high gravity field | |
| CN107019996B (en) | The absorbent of cyclic absorption natural gas sulfur dioxide in tail gas gas and its application | |
| NL1015827C2 (en) | Extraction of pure CO2 from flue gases. | |
| CN105289209A (en) | Mixed organic solution for trapping CO2 and SO2 acid gas through phase transformation | |
| CN107261767B (en) | Flue gas decarbonizing agent and flue gas decarbonizing method | |
| AU2011328098A1 (en) | Amine-containing absorption medium, process and apparatus for absorption of acidic gases from gas mixtures | |
| CN102125802B (en) | Method for recovering and purifying waste gas during crude benzene hydrogenation refining production | |
| CN103566735A (en) | Absorption solution for removing sulfides and carbon dioxide from natural gas | |
| CN101745289A (en) | Method for selectively removing H2S from gas mixture containing CO2 | |
| CN105833667A (en) | Renewable adsorbent for removing sulfur dioxide | |
| CN104815525A (en) | Treating agent for mixing acid components in mixed gases | |
| CN108144415A (en) | A kind of absorbing liquid of phase transformation trapping hydrogen sulfide | |
| CN105214450B (en) | A kind of selective absorbing SO2Absorbent and absorb SO2Process | |
| CN106318500A (en) | Biological purifying process of unconventional gas | |
| CN103170216A (en) | Alcohol amine type ion liquor-containing compound absorbent capable of capturing carbon dioxide | |
| CN101780363A (en) | Treatment agent of acidic components used for mixed gas | |
| CN108993133A (en) | COS, CS in a kind of promotion natural gas2The method of removing | |
| CN102886242A (en) | Preparation method of organic amine-immobilization modified molecular sieve for high-efficiency adsorption of acid gas | |
| CN107376586A (en) | A kind of effective ways of coal-fired flue gas desulfurization decarburization | |
| CN102151456A (en) | Method and device for removing CO2 and H2S in sewage gas and similar gas resources by chemical reagent process | |
| CN107261766B (en) | Flue gas decarburization composition, preparation method thereof and flue gas decarburization method | |
| CN106854478A (en) | A kind of absorbing liquid containing ionic liquid activator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080917 |