CN102423606B - Additive of carbon dioxide absorption agent, and use thereof - Google Patents
Additive of carbon dioxide absorption agent, and use thereof Download PDFInfo
- Publication number
- CN102423606B CN102423606B CN2011102620397A CN201110262039A CN102423606B CN 102423606 B CN102423606 B CN 102423606B CN 2011102620397 A CN2011102620397 A CN 2011102620397A CN 201110262039 A CN201110262039 A CN 201110262039A CN 102423606 B CN102423606 B CN 102423606B
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- CN
- China
- Prior art keywords
- carbon
- dioxide absorbent
- additive
- strontium
- absorption agent
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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
-
- 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
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- Treating Waste Gases (AREA)
- Carbon And Carbon Compounds (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The present invention discloses an additive of a carbon dioxide absorption agent, and a carbon dioxide absorption agent containing the same. The carbon dioxide absorption agent is organic strontium. The carbon dioxide absorption agent is an organic amine solution of the additive containing 0.01-5% by mass of the absorption agent. With the absorption agent, the oxidation rate and the electrochemical corrosion can be significantly reduced, the service life can be prolonged, and the corrosive effect on the equipment can be reduced so as to reduce the production cost. In the CO2 removal technology, the organic amine carbon dioxide absorption agent added with strontium has a good development prospect.
Description
Technical field
The present invention relates to the organic amine carbon-dioxide absorbent, particularly add the organic amine carbon-dioxide absorbent of organic strontium.
Background technology
Human earth environment of depending on for existence in the positive serious threat of greenhouse effects, and the key of whole world reply greenhouse effects is to reduce greenhouse gas emission, wherein mainly is the CO that reduces energy-consuming
2Discharging.According to EIA " world energy outlook 2007 ", coal demand amplification is amplification maximum in the variety of energy sources, from 2007 to the year two thousand thirty, it is about 64% that coal demand will rise, and therefore, in the world, reduces because the CO that consumption of coal causes
2Discharging is one of main path of its total release of control.2009, the CO that AND ENERGY RESOURCES CONSUMPTION IN CHINA produces
2Discharge capacity surpasses the U.S. becomes global first CO
2Discharging state.China CO
2The very fast situation that increases of discharge capacity will more and more be subjected to concern and the pressure of international community.In China, the CO of coal-burning power plant
2Discharging is one of main emission source of greenhouse gases, its CO
2Discharging accounts for China CO
250% of total emission volumn; And according to ENERGY PLANNING prediction, by 2010, China's coal fired power generation unit will be increased to 700,000,000 kilowatts, and coal for power generation will reach 1,600,000,000 tons, and from 2010 years to the year two thousand twenty, national consumption of coal total amount is also with sustainable growth.Therefore, reduce the CO of coal-burning power plant
2Discharging is for control China CO
2Total emission volumn is most important.
At present, CO
2The technology main flow of subtractive process is broadly divided into three major types: solvent absorption, membrane separation process and solid absorbent absorption method.Wherein, the solvent absorption techniques be the most attractive, use also the most a kind of isolation technics, most coal-fired plant flue gas CO
2Absorption plant has all adopted such technology.CO
2The quality of absorbent is one of main determining factor of this technology, but under the coal-fired plant flue gas environment, oxidation appears in present absorbent easily, and flying dust pollutes, situations such as chemical attack, absorbent inefficacy apt to deteriorate.
Therefore, the CO in coal-burning power plant's flue environment
2Absorbent should have following quality behind the additive having added: 1. good in oxidation resistance: the flue gas in coal-burning power plant's flue contains the oxygen of 6%-15%, belongs under the high aerobic environment, particularly hot environment, and absorbent is caused by dioxygen oxidation losing efficacy easily; 2. corrosivity is low: additive should reduce absorbent to the corrosion of equipment, the corrosivity when particularly reducing high temperature; 3. environmental friendliness: volatility is low, and is pollution-free.The metal nonionic additives can same MEA (MEA), N methyldiethanol amine alkalescent organic amines such as (MDEA) is composite, can increase the heat endurance of absorbents such as MEA, MDEA, reduces the corrosivity of organic amine, strengthens the non-oxidizability of organic amine.
Summary of the invention
One of purpose of the present invention is to provide a kind of additive of carbon-dioxide absorbent, and this additive and organic amine solution are united utilization, can significantly reduce oxidation rate and electrochemical corrosion.
For achieving the above object, technical scheme of the present invention is:
The additive of carbon-dioxide absorbent, the additive of described carbon-dioxide absorbent are organic strontium.
Further, described organic strontium is the isopropyl alcohol strontium.
Further, the mass fraction of described isopropyl alcohol strontium is the isopropyl alcohol strontium solution of 0.01-5%.
Two of purpose of the present invention is to provide a kind of carbon-dioxide absorbent, and this absorbent is that organic amine and organic strontium are united utilization, and it can significantly reduce oxidation rate and electrochemical corrosion.
For achieving the above object, technical scheme of the present invention is:
The carbon-dioxide absorbent that contains the additive of carbon-dioxide absorbent, described carbon-dioxide absorbent is to contain the organic amine solution of additive that mass fraction is the carbon-dioxide absorbent of 0.01-5%, and the concentration of described organic amine solution is counted the organic amine solution of 10%-30% with mass fraction.
Further, described organic amine is any or mixed liquor in MEA and the N methyldiethanol amine.
Further, described organic amine solution is monoethanolamine solution, and the mass fraction of MEA is 18% in the described monoethanolamine solution.
Further, described carbon-dioxide absorbent also contains strontium salt.
Further, described strontium salt is strontium chloride.
The mass fraction that further described strontium salt is strontium chloride is 0.05%.
Beneficial effect of the present invention is: the carbon-dioxide absorbent that the present invention contains the additive of carbon-dioxide absorbent can significantly reduce oxidation rate and electrochemical corrosion, prolong its service time, reduce it to the corrosiveness of equipment, thereby reduce production costs.At CO
2Remove in the technology, the organic amine carbon-dioxide absorbent of adding machine strontium has the excellent development prospect.
The specific embodiment
The test of oxidation susceptibility
In order to improve reaction rate, adopt 100% oxygen.In the normal pressure stirring reactor, measure various amine aqueous solutions at 100%O
2Oxidation rate under existing, main experiment flow is specially: the test preparatory stage is transferred to the constant temperature oil bath magnetic stirring apparatus earlier and absorbs 105 ℃ of temperature, magnetic agitation speed 180r/min, and be loaded into the 100ml absorption liquid in the absorption bottle in advance, additive with carbon-dioxide absorbent adds wherein again, treats that the absorption liquid temperature begins experiment when reaching assigned temperature.After gas configured in the distribution jar, by pressure-reducing valve, by gas mass flow amount controller control flow, with the absorption liquid stirring reaction, residual gas was measured emptying behind volume through another mass-flow gas meter in the normal pressure stirring reactor.Measured the content of residue MEA in the solution or MDEA in per 5 hours, MEA content is reduced to initial 95% and namely can be drawn oxidation rate in solution.
The test of electrochemical corrosion
To absorb saturated organic amine solution again in its corrosive size of CHI660B electrochemical workstation research.Adopt three-electrode system, (coat with epoxy resin with the Q235B carbon steel electrode, work area 1.3cm2) electrode that makes a search, all use 400,600,800 successively with carbon steel electrode before each experiment, 1200,1500 sand paper are polished step by step to light, remove detritus with ultrasonic cleaning again, at last with distilled water, absolute ethyl alcohol flushing; Auxiliary electrode is large-area platinized platinum electrode; Reference electrode is saturated calomel electrode (SCE), and the electrode potential of mentioning in the literary composition is without specifying the current potential that all refers to respect to this electrode.
Embodiment 1 contains the prescription of carbon-dioxide absorbent of the additive of described carbon-dioxide absorbent
Prescription one:
MEA is dissolved in water, add isopropyl alcohol strontium (C again
6H
14O
2Sr), mix, be mixed with the MEA mass fraction and be 18% and isopropyl alcohol strontium mass fraction be 0.01% carbon-dioxide absorbent.
Prescription two:
MDEA is dissolved in water, add isopropyl alcohol strontium (C again
6H
14O
2Sr), mix, be mixed with the MDEA mass fraction and be 30% and isopropyl alcohol strontium mass fraction be 5% carbon-dioxide absorbent.
Prescription three:
MEA is dissolved in water, adds the isopropyl alcohol strontium again, mix, be mixed with the MEA mass fraction and be 18% and isopropyl alcohol strontium mass fraction be 0.1% carbon-dioxide absorbent.
Prescription four:
Add mass fraction on prescription three basis and be 0.05% SrCl
2
Prescription five:
MEA is dissolved in water, add isopropyl alcohol strontium (C6H14O2Sr) again and mix, being mixed with the MEA mass fraction is 10%, and isopropyl alcohol strontium (C6H14O2Sr) mass fraction is 0.1% carbon-dioxide absorbent.
Prescription six:
MEA is dissolved in water, be mixed with mass fraction and be the carbon-dioxide absorbent of 18% MEA.
The test of embodiment 2 oxidation susceptibilities and electrochemical corrosion
Prescription among the embodiment 1 is detected by described " test of oxidation susceptibility " and " test of electrochemical corrosion " described mode.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although by invention has been described with reference to the preferred embodiments of the present invention, but those of ordinary skill in the art is to be understood that, can make various changes to it in the form and details, and not depart from the spirit and scope of the present invention that appended claims limits.
Claims (6)
1. the carbon-dioxide absorbent that contains the additive of carbon-dioxide absorbent, it is characterized in that: described carbon-dioxide absorbent is to contain the organic amine solution of additive that mass fraction is the carbon-dioxide absorbent of 0.01-5%, the concentration of described organic amine solution is counted the organic amine solution of 10%-30% with mass fraction, the additive of described carbon-dioxide absorbent is organic strontium, and described organic strontium is the isopropyl alcohol strontium.
2. the carbon-dioxide absorbent that contains the additive of carbon-dioxide absorbent according to claim 1 is characterized in that: described organic amine is any or mixed liquor in MEA and the N methyldiethanol amine.
3. the carbon-dioxide absorbent that contains the additive of carbon-dioxide absorbent according to claim 1, it is characterized in that: described organic amine solution is monoethanolamine solution, the mass fraction of MEA is 18% in the described monoethanolamine solution.
4. the carbon-dioxide absorbent that contains the additive of carbon-dioxide absorbent according to claim 1, it is characterized in that: described carbon-dioxide absorbent also contains strontium salt.
5. the carbon-dioxide absorbent that contains the additive of carbon-dioxide absorbent according to claim 4, it is characterized in that: described strontium salt is strontium chloride.
6. the carbon-dioxide absorbent that contains the additive of carbon-dioxide absorbent according to claim 5, it is characterized in that: the mass fraction that described strontium salt is strontium chloride is 0.05%.
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|---|---|---|---|
| CN2011102620397A CN102423606B (en) | 2011-09-06 | 2011-09-06 | Additive of carbon dioxide absorption agent, and use thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102620397A CN102423606B (en) | 2011-09-06 | 2011-09-06 | Additive of carbon dioxide absorption agent, and use thereof |
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| CN102423606A CN102423606A (en) | 2012-04-25 |
| CN102423606B true CN102423606B (en) | 2013-10-02 |
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| CN104437045A (en) * | 2014-10-24 | 2015-03-25 | 无锡伊佩克科技有限公司 | Absorbent and method for removing acidic gases in waste gas |
| CN104338428A (en) * | 2014-10-24 | 2015-02-11 | 无锡伊佩克科技有限公司 | Compound absorbent used for waste gas treatment and treatment method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190397A (en) * | 2006-11-29 | 2008-06-04 | 韩国电力公社 | Absorbent for separation of carbon dioxide |
| WO2010037109A2 (en) * | 2008-09-29 | 2010-04-01 | Akermin, Inc. | Process for accelerated capture of carbon dioxide |
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| US20030039843A1 (en) * | 1997-03-14 | 2003-02-27 | Christopher Johnson | Photoactive coating, coated article, and method of making same |
| FR2933004B1 (en) * | 2008-06-27 | 2010-08-20 | Inst Francais Du Petrole | ABSORBENT SOLUTION CONTAINING THIADIAZOLE-DERIVED DEGRADATION INHIBITOR AND METHOD FOR LIMITING DEGRADATION OF ABSORBENT SOLUTION |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190397A (en) * | 2006-11-29 | 2008-06-04 | 韩国电力公社 | Absorbent for separation of carbon dioxide |
| WO2010037109A2 (en) * | 2008-09-29 | 2010-04-01 | Akermin, Inc. | Process for accelerated capture of carbon dioxide |
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