CN104028078A - Composite amine solvent for removing and recycling sulfur dioxide from sulfur-containing tail gas - Google Patents
Composite amine solvent for removing and recycling sulfur dioxide from sulfur-containing tail gas Download PDFInfo
- Publication number
- CN104028078A CN104028078A CN201410275142.9A CN201410275142A CN104028078A CN 104028078 A CN104028078 A CN 104028078A CN 201410275142 A CN201410275142 A CN 201410275142A CN 104028078 A CN104028078 A CN 104028078A
- Authority
- CN
- China
- Prior art keywords
- component
- sulfur dioxide
- amine solvent
- sulfur
- tail gas
- 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.)
- Granted
Links
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a composite amine solvent for removing and recycling sulfur dioxide from sulfur-containing tail gas, and solves the problem that the environmental pollution cannot be thoroughly solved in the prior art. The composite amine solvent consists of a component A, a component B, a component C and desalted water, wherein the component A is one or more of ethidene diamine, diethylenetriamine, sulfolane, N-methyldiethanolamine, monoethanolamine, hydroxyethyl ethylenediamine, piperazine and tetramethylbenzene diamine; the component B is one or more of 2-amino-2-methyl-1-propyl alcohol, 2-piperidineethanol, 1,8-terpane diamine, N,N-dihydroxy ethyl ethanediamine, N-ethoxy imidazole, tert-butylamine ethyl alcohol, tert-butylamine ethoxyethanol and 1,2-(di-tert-butylamine ethyoxyl) ethane; the component C is one or more of basic cupric carbonate, vanadium pentoxide, metavanadate and antimony potassium tartrate. The composite amine solvent can be used for producing sulfur dioxide with purity being greater than 98 percent, is conductive to realizing comprehensive utilization of sulfur dioxide and thoroughly solves the problem of secondary pollution.
Description
Technical field
The present invention is specifically related to a kind of compound amine solvent that removes, reclaims sulfur dioxide in sulfur-containing tail gas.
Background technology
Along with improving constantly of national requirements for environmental protection, the sulfur dioxide removing in the sulfurous gas such as fire coal boiler fume, sintering machine tail gas has become the necessary condition of device operation, and comprises that at present the techniques such as ammonia process, limestone-gypsum method all can not thoroughly solve problem of environmental pollution.
Summary of the invention
The object of the invention is to a kind of compound amine solvent that removes, reclaims sulfur dioxide in sulfur-containing tail gas proposing, solve prior art and cannot thoroughly solve the problem of environmental pollution.
The present invention is achieved through the following technical solutions:
Remove, reclaim a compound amine solvent for sulfur dioxide in sulfur-containing tail gas, by the component of following percentage by weight, formed:
Component A 15～55%
B component 0.25～3.5%
Component C 0.02～2%
Desalted water 40～80%;
Wherein, component A is one or more in ethylenediamine, diethylenetriamine, sulfolane, N methyldiethanol amine, monoethanolamine, AEEA, piperazine, durol diamines or derivatives thereof;
B component is that 2-amino-2-methyl-1-propanol, 2-send pyridine ethanol, 1,8-menthanediamine, N, N-dihydroxy ethyl ethylenediamine, N-hydroxyethyl imidazole, tert-butylamine base ethanol, tertiary fourth amino ethoxy ethanol, 1, two tert-butylamine base oxethyls of 2-() one or more in ethane;
Component C is one or more in basic copper carbonate, vanadic anhydride, metavanadate, potassium antimony tartrate.
As a kind of selection, described compound amine solvent is comprised of the component of following percentage by weight: ethylenediamine 17%, sulfolane 13%, methyl diethanolamine 10%, 2-amino-2-methyl-1-propanol 0.5%, tert-butylamine base ethanol 0.5%, vanadic anhydride 0.1%, desalted water 58.9%.
As another kind, select, described compound amine solvent is comprised of the component of following percentage by weight: piperazine 23%, N, N-dihydroxy ethyl ethylenediamine 20%, 2-amino-2-methyl-1-propanol 1%, basic copper carbonate 0.05%, desalted water 55.95%.
As the third, select, described compound amine solvent is comprised of the component of following percentage by weight: piperazine 25%, N, N-dihydroxy ethyl ethylenediamine 20%, 2-amino-2-methyl-1-propanol 1.5%, basic copper carbonate 0.07%, desalted water 53.43%.
Preparation method of the present invention and using method are as follows:
1, each component (is not comprised to desalted water) in proportion and join in synthesis reactor, in the situation that agitator constantly stirs, mixed solution is warming up to 60 ℃ according to the speed of 5 degree per hour, constant temperature 12 as a child naturally cooled to normal temperature.
2, at use scene, proportionally above-mentioned solution and desalted water are added to the desulfurization regeneration circulatory system (this is existing equipment) and carries out continuously solution circulation, through continuous three analysis results, all meeting ratio requirement backsight is that solution preparation is qualified.
The present invention be take By Amine Solutions as main body, according to the peculiar property of sulfur-containing tail gas temperature, composition difference and various organic amines, through Compound Machining, make compound amine solvent there is good absorption and desorption sulfur dioxide performance, to sulfur dioxide, can carry out the selective purity absorbing with raising sulfur dioxide gas.
When the present invention selects By Amine Solutions, select boiling point, proportion is close, intersolubility is good solution to carry out compound as far as possible; Take into full account the activity of compound amine solvent, anti-oxidant degradability and scale inhibitor etc., to guarantee that in use loss of compound amine solvent is low, regeneration is easy, it is stable to form simultaneously.
The synthetic compound amine solvent of the present invention has extremely strong adaptability to content of sulfur dioxide, from about 500mg/Nm
3to 20000mg/Nm
3all can guarantee tail gas qualified discharge; Absorption temperature range is wide, between 25～80 ℃ all can, mainly according to the water content in tail gas, determine, the not externally discharged waste water of take is principle; Regeneration of waste liquor temperature is unusual between 90～125 ℃ according to forming.
The present invention has the following advantages and beneficial effect:
The sulfur dioxide that compound amine solvent of the present invention can production purity be greater than 98%, is conducive to realize the comprehensive utilization of sulfur dioxide, thoroughly solves the problem of secondary pollution; Compound amine solvent of the present invention can improve desulfuration efficiency in the situation that device not being transformed, and reduces SO2 emissions; Can reach the sulfur dioxide in selective absorption tail gas, and do not absorb other sour gas simultaneously.
The specific embodiment
Below in conjunction with embodiment, the invention will be further described, and embodiments of the present invention include but not limited to the following example.
Embodiment 1
Certain factory's coal-fired boiler tail gas, wherein contains sulfur dioxide 1200～3300mg/Nm
3, utilize solution composition provided by the present invention to be: ethylenediamine 17%, sulfolane 13%, methyl diethanolamine 10%, 2-amino-2-methyl-1-propanol 0.5%, tert-butylamine base ethanol 0.5%, vanadic anhydride 0.1%, desalted water 58.9%.Experimental result is as following table 1.
Table 1
| Sequence number | Entrance SO 2Content (mg/Nm 3） | Outlet SO 2Content (mg/Nm 3） | Desulfuration efficiency (%) | Regeneration gas SO 2Purity (%) |
| 1 | 2577 | 85 | 96.70 | 99.2 |
| 2 | 3260 | 86 | 97.36 | 99.3 |
| 3 | 1565 | 70 | 95.53 | 99.1 |
| 4 | 2580 | 75 | 97.09 | 99.1 |
Experimental result shows, utilizes compound amine solvent of the present invention, and device operating flexibility is large, and outlet content of sulfur dioxide is basicly stable, can be along with the fluctuation of sulfur dioxide in inlet gas fluctuation; And regeneration gas purity is high, is beneficial to and fully utilizes.
Embodiment 2
Certain steel mill's sintering tail gas, wherein contains sulfur dioxide 8700～13000mg/Nm
3, utilize solution composition provided by the present invention to be: piperazine 23%, N, N-dihydroxy ethyl ethylenediamine 20%, 2-amino-2-methyl-1-propanol 1%, basic copper carbonate 0.05%, desalted water 55.95%.Result of the test is as following table 2.
Table 2
| Sequence number | Entrance SO 2Content (mg/Nm 3） | Outlet SO 2Content (mg/Nm 3） | Desulfuration efficiency (%) | Regeneration gas SO 2Purity (%) |
| 1 | 9259 | 87 | 99.06 | 98.8 |
| 2 | 11830 | 87 | 99.26 | 99.0 |
| 3 | 12874 | 85 | 99.34 | 99.0 |
| 4 | 12766 | 90 | 99.30 | 99.3 |
Experimental result shows, utilizes this solvent formula, and solvent absorption capacity is large, and desulfuration efficiency is high, and device operating flexibility is large; And regeneration gas purity is high, is beneficial to and carries out integrated treatment.
Embodiment 3
Certain sulfuric acid plant's reformed gas, wherein contains sulfur dioxide 12000～19000mg/Nm
3, utilize solution composition provided by the present invention to be: piperazine 25%, N, N-dihydroxy ethyl ethylenediamine 20%, 2-amino-2-methyl-1-propanol 1.5%, basic copper carbonate 0.07%, desalted water 53.43%.Result of the test is as table 3.
Table 3
| Sequence number | Entrance SO 2Content (mg/Nm 3） | Outlet SO 2Content (mg/Nm 3） | Desulfuration efficiency (%) | Regeneration gas SO 2Purity (%) |
| 1 | 15580 | 90 | 99.42 | 99.5 |
| 2 | 18790 | 95 | 99.49 | 99.6 |
| 3 | 18965 | 92 | 99.51 | 99.3 |
| 4 | 13563 | 87 | 99.36 | 99.3 |
Result of the test shows, utilize this solvent formula, device is adaptable to the content of sulfur dioxide in flue gas, in the situation that the fluctuation of entrance content is larger, outlet content of sulfur dioxide is basicly stable, can be along with the fluctuation of sulfur dioxide in inlet gas fluctuation, and regeneration gas purity is high, is beneficial to and fully utilizes.
Should be noted that, above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to above-described embodiment, those of ordinary skill in the art is to be understood that: still can modify or be equal to replacement the present invention, and not departing from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in claim scope of the present invention.
Claims (4)
1. a compound amine solvent that removes, reclaims sulfur dioxide in sulfur-containing tail gas, is characterized in that, the component of following percentage by weight, consists of:
Component A 15～55%
B component 0.25～3.5%
Component C 0.02～2%
Desalted water 40～80%;
Wherein, component A is one or more in ethylenediamine, diethylenetriamine, sulfolane, N methyldiethanol amine, monoethanolamine, AEEA, piperazine, durol diamines;
B component is that 2-amino-2-methyl-1-propanol, 2-send pyridine ethanol, 1,8-menthanediamine, N, N-dihydroxy ethyl ethylenediamine, N-hydroxyethyl imidazole, tert-butylamine base ethanol, tertiary fourth amino ethoxy ethanol, 1, two tert-butylamine base oxethyls of 2-() one or more in ethane;
Component C is one or more in basic copper carbonate, vanadic anhydride, metavanadate, potassium antimony tartrate.
2. a kind of compound amine solvent that removes, reclaims sulfur dioxide in sulfur-containing tail gas according to claim 1, it is characterized in that, by the component of following percentage by weight, formed: ethylenediamine 17%, sulfolane 13%, methyl diethanolamine 10%, 2-amino-2-methyl-1-propanol 0.5%, tert-butylamine base ethanol 0.5%, vanadic anhydride 0.1%, desalted water 58.9%.
3. a kind of compound amine solvent that removes, reclaims sulfur dioxide in sulfur-containing tail gas according to claim 1, it is characterized in that, component by following percentage by weight forms: piperazine 23%, N, N-dihydroxy ethyl ethylenediamine 20%, 2-amino-2-methyl-1-propanol 1%, basic copper carbonate 0.05%, desalted water 55.95%.
4. a kind of compound amine solvent that removes, reclaims sulfur dioxide in sulfur-containing tail gas according to claim 1, it is characterized in that, component by following percentage by weight forms: piperazine 25%, N, N-dihydroxy ethyl ethylenediamine 20%, 2-amino-2-methyl-1-propanol 1.5%, basic copper carbonate 0.07%, desalted water 53.43%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410275142.9A CN104028078B (en) | 2014-06-19 | 2014-06-19 | The compound amine solvent of sulfur dioxide in a kind of removing, recovery sulfur-containing tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410275142.9A CN104028078B (en) | 2014-06-19 | 2014-06-19 | The compound amine solvent of sulfur dioxide in a kind of removing, recovery sulfur-containing tail gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104028078A true CN104028078A (en) | 2014-09-10 |
| CN104028078B CN104028078B (en) | 2016-08-24 |
Family
ID=51459208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410275142.9A Active CN104028078B (en) | 2014-06-19 | 2014-06-19 | The compound amine solvent of sulfur dioxide in a kind of removing, recovery sulfur-containing tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104028078B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104774665A (en) * | 2015-01-29 | 2015-07-15 | 中国石油天然气集团公司 | Activating MDEA solution for deep deacidification of liquefied natural gas |
| CN113082944A (en) * | 2021-03-26 | 2021-07-09 | 四川益能康生环保科技有限公司 | Composite absorbent for removing sulfur dioxide in tail gas and preparation method thereof |
| CN116603369A (en) * | 2023-04-28 | 2023-08-18 | 成都益志科技有限责任公司 | Absorbent capable of efficiently absorbing sulfur dioxide |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274204A (en) * | 2007-03-28 | 2008-10-01 | 成都华西化工研究所 | Absorbing agent for removing and recovering sulfur dioxide from gaseous mixture |
| CN102266707A (en) * | 2011-07-11 | 2011-12-07 | 中国石油化工集团公司 | Flue gas sulfur dioxide absorption solvent with high-selectivity wet method |
-
2014
- 2014-06-19 CN CN201410275142.9A patent/CN104028078B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274204A (en) * | 2007-03-28 | 2008-10-01 | 成都华西化工研究所 | Absorbing agent for removing and recovering sulfur dioxide from gaseous mixture |
| CN102266707A (en) * | 2011-07-11 | 2011-12-07 | 中国石油化工集团公司 | Flue gas sulfur dioxide absorption solvent with high-selectivity wet method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104774665A (en) * | 2015-01-29 | 2015-07-15 | 中国石油天然气集团公司 | Activating MDEA solution for deep deacidification of liquefied natural gas |
| CN113082944A (en) * | 2021-03-26 | 2021-07-09 | 四川益能康生环保科技有限公司 | Composite absorbent for removing sulfur dioxide in tail gas and preparation method thereof |
| CN113082944B (en) * | 2021-03-26 | 2023-02-03 | 四川益能康生环保科技有限公司 | Composite absorbent for removing sulfur dioxide in tail gas and preparation method thereof |
| CN116603369A (en) * | 2023-04-28 | 2023-08-18 | 成都益志科技有限责任公司 | Absorbent capable of efficiently absorbing sulfur dioxide |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104028078B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101274204B (en) | Absorbing agent for removing and recovering sulfur dioxide from gaseous mixture | |
| CN101869824B (en) | Flue gas desulfurizing agent and flue gas desulfurization method | |
| CN100493673C (en) | Compound decarburization solution for recovering carbon dioxide in gas mixture | |
| CN106178838B (en) | A kind of compound piperazines organic amine desulfurizer | |
| CN106031841A (en) | Denitration technology and equipment for gas | |
| CN106031844A (en) | Agent for desulphurization and denitration | |
| KR102114062B1 (en) | METHOD FOR REMOVING SOx FROM GAS USING POLYOL COMPLEX SOLUTION | |
| CN102078752A (en) | Method for preparing sodium nitrite from nitric oxide waste gas through multistage oxidation absorption | |
| CN101481092A (en) | Method for recovery of CO2 from gas streams | |
| CN101143286A (en) | Method for removing COS from acid airflow | |
| CN103357261A (en) | Compound desulfurizer and preparation method thereof | |
| CN104437059A (en) | Flue gas absorbent of desulfurization and denitrification, and desulfurization and denitrification method thereof | |
| CN105833667A (en) | Renewable adsorbent for removing sulfur dioxide | |
| CN108355463B (en) | Desulfurization method and device for sulfur tail gas | |
| CN111071995A (en) | Method for preparing industrial sulfuric acid by using sulfur-containing waste liquid | |
| CN104028078A (en) | Composite amine solvent for removing and recycling sulfur dioxide from sulfur-containing tail gas | |
| JP2016000381A (en) | Acidic gas treatment method and acidic gas treatment device | |
| CN103657342B (en) | A kind of efficient renewable SO 2absorbent | |
| CN105214450B (en) | A kind of selective absorbing SO2Absorbent and absorb SO2Process | |
| CN202590630U (en) | Coal-fired boiler low-temperature selective catalytic reduction (SCR) fixed bed smoke denitration device | |
| CN101780363A (en) | Treatment agent of acidic components used for mixed gas | |
| CN103406020A (en) | Additive for flue gas desulfurization and denitration and flue gas desulfurization and denitration method | |
| CN109529544A (en) | Removal sulfur dioxide composition, preparation method and sulfur method | |
| CN104511228A (en) | Process system and method for flue gas combined desulfurization and decarburization | |
| CN102688680A (en) | Method for removing sulfur and nitrogen in coal-fired power plant by combining seawater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |