CN101264413A - Total sulfides removing solvent and preparation thereof - Google Patents
Total sulfides removing solvent and preparation thereof Download PDFInfo
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- CN101264413A CN101264413A CNA2008100247367A CN200810024736A CN101264413A CN 101264413 A CN101264413 A CN 101264413A CN A2008100247367 A CNA2008100247367 A CN A2008100247367A CN 200810024736 A CN200810024736 A CN 200810024736A CN 101264413 A CN101264413 A CN 101264413A
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Abstract
The invention discloses a desulfurizing total sulfur solvent, which comprises n-methyldiethanolamine (MDEA), defoamer and activator; wherein, the content of the n-methyldiethanolamine is 30 to 95wt% 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 5 to 69.5wt% in the decarburization solvent. The desulfurizing total sulfur solvent has the advantages of resolving the prior desulfurizing total sulfur solvent drawback that hydrogen sulfide can not be removed and alkaline solution is required to remove hydrogen sulfide in the subsequent handling, low material and energy consumption, and no environmental pollution and easy process of waste alkaline residue.
Description
Technical field
The present invention relates to the gas sweetening technical field, especially a kind of total sulfides removing solvent and preparation method thereof.
Background technology
At present, both at home and abroad the research of Treatment of Hydrogen Sulfide Waste Gas is more and more paid attention to.The method of carrying out desulfurization according to its faintly acid and strong reducing property can be divided into dry method and wet method.
Dry method is to utilize the reproducibility and the combustibility of hydrogen sulfide, comes desulfurization or directly burning with solid oxidizer or adsorbent, comprising Claus method, iron oxide process, activated carbon method and Ka Taisuerfufa etc.
Wet method is divided into liquid absorption method and absorbs oxidizing process two classes by its used different desulfurizing agents.Chemical absorption method that utilizes alkaline solution and the Physical Absorption method of utilizing organic solvent and physical chemistry absorption process are arranged in the liquid absorption method.Absorbing oxidizing process mainly utilizes various oxidants, catalyst to carry out desulfurization.
With regard to present dry method and wet method two big sulfur removal technologies, dry desulfurization is to remove sulfide with solid absorbent, desulfuration efficiency is higher, but equipment investment is bigger, need super regeneration or replacing, its sulfur capacity is relatively low, and desulfurizing agent can not be regenerated mostly, need to handle, mainly be suitable for the meticulous desulfurization of gas.Wet desulphurization is to remove sulfide with liquid-absorbant, and the device processes amount is big, and investment and operating cost are little, but continued operation can adapt to the desulfurization requirement of higher load, the application surface broad, and wherein the advantage with liquid phase oxidation is comparatively outstanding especially.
Industrialized absorption oxidizing process at present just, the main solution that contains alkali that adopts contains alkali wash water owing to use, and also will be subjected to the restriction of environmental regulation; Though the desulfuration efficiency height, sulfur capacity is big, but these class methods remain the problem that needs solution many at aspects such as stability of solution, side reaction control and regeneration.And exist desulfurization temperature higher, the normal temperature rate of sulphur expulsion is slow, and the alkali that uses is subjected to the problems such as restriction of environmental regulation.In addition, above-mentioned sulfur removal technology can only be removed hydrogen sulfide, and can not slough problems such as organic sulfur.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of N monomethyl diethanol amine (MDEA) desulfuration solution of improvement is provided, overcomes the defective of the synthesis desulfurating scarce capacity of existing MDEA desulfuration solution existence.
The technical solution adopted for the present invention to solve the technical problems is: a kind of total sulfides removing solvent, contain N methyldiethanol amine, it is characterized in that: also comprise defoamer and activator, wherein, described N methyldiethanol amine content in described total sulfides removing solvent is 30～95wt%, the content of described defoamer in described total sulfides removing solvent is 0.1～0.5wt%, and the content of described activator in described total sulfides removing solvent is 5～69.5wt%.
According to another embodiment of the present invention, total sulfides removing solvent comprises that further described activator is methenamine, sulfolane, monoethanolamine, sterically hindered amines, isopropanolamine or both or both above mixtures.
According to another embodiment of the present invention, total sulfides removing solvent comprises that further described defoamer is a dimethicone.
A kind of preparation method of total sulfides removing solvent comprises following preparation process:
A. add in reactor that content is the N methyldiethanol amine of 30～95wt% in the total sulfides removing solvent;
B. in reactor, add content in the total sulfides removing solvent successively and be that content is 5～69.5wt% activator in the defoamer of 0.1～0.5wt% and the total sulfides removing solvent;
C. it is even to it to continue to mix liquid.
The invention has the beneficial effects as follows, total sulfides removing solvent of the present invention has improved organic sulfur, the subsequent handling that original total sulfides removing solvent can not take off and need use aqueous slkali to remove the operation of organic sulfur, use this invention to have saved material consumption and energy consumption, solved waste soda residue problems such as the pollution of environment and difficult treatment.
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 total sulfides removing solvent, contain N methyldiethanol amine (MDEA), also comprise defoamer and activator, wherein, described N methyldiethanol amine content in described total sulfides removing solvent is 30～95wt%, the content of described defoamer in described total sulfides removing solvent is 0.1～0.5wt%, and the content of described activator in described total sulfides removing solvent is 5～69.5wt%.In addition, activator can for methenamine, sulfolane, monoethanolamine, sterically hindered amines, isopropanolamine or both or both more than mixture, defoamer is a dimethicone.
Prepare above-mentioned desulfurization solvent and need following steps: add in reactor in reactor at first that content is the N methyldiethanol amine of 30～95wt% in the total sulfides removing solvent; Then, add successively in reactor that content is 5～69.5wt% activator in defoamer that content in the total sulfides removing solvent is 0.1～0.5wt% and the total sulfides removing solvent; It is even to it to mix liquid.
Embodiment 1:
In reactor, add N methyldiethanol amine (MDEA) 30kg, then in reactor, add dimethicone 0.5kg, methenamine, sulfolane while stirring successively according to the mixture 69.5kg that mixes at 1: 1, reinforced finishing, it is even to continue to mix liquid.Inspection by sampling, product are faint yellow or milky slime body slightly.This liquid and water can dissolve each other fully, are difficult for foaming, good stability.
Embodiment 2:
In reactor, add N methyldiethanol amine (MDEA) 30kg, then in reactor, add dimethicone 0.5kg, monoethanolamine, sterically hindered amines, isopropanolamine while stirring successively according to the mixture 69.5kg that mixes at 1: 1: 1, reinforced finishing, it is even to continue to mix liquid.Inspection by sampling, product are faint yellow or milky slime body slightly.This liquid and water can dissolve each other fully, are difficult for foaming, good stability.
Embodiment 3:
In reactor, add N methyldiethanol amine (MDEA) 30kg, then in reactor, add dimethicone 0.5kg, sulfolane, monoethanolamine while stirring successively according to the mixture 69.5kg that mixes at 1: 1, reinforced finishing, it is even to continue to mix liquid.Inspection by sampling, product are faint yellow or milky slime body slightly.This liquid and water can dissolve each other fully, are difficult for foaming, good stability.
Embodiment 4:
In reactor, add N methyldiethanol amine (MDEA) 95kg, then in reactor, add dimethicone 0.1kg, methenamine, sulfolane while stirring successively according to the mixture 5kg that mixes at 1: 1, reinforced finishing, it is even to continue to mix liquid.Inspection by sampling, product are faint yellow or the milky transparency liquid.This liquid and water can dissolve each other fully, are difficult for foaming, good stability.
Embodiment 5:
In reactor, add N methyldiethanol amine (MDEA) 95kg, then in reactor, add dimethicone 0.1kg, monoethanolamine, sterically hindered amines, isopropanolamine while stirring successively according to the mixture 5kg that mixes at 1: 1: 1, reinforced finishing, it is even to continue to mix liquid.Inspection by sampling, product are faint yellow or the milky transparency liquid.This liquid and water can dissolve each other fully, are difficult for foaming, good stability.
Embodiment 6:
In reactor, add N methyldiethanol amine (MDEA) 95kg, then in reactor, add dimethicone 0.1kg, sulfolane, monoethanolamine while stirring successively according to the mixture 5kg that mixes at 1: 1, reinforced finishing, it is even to continue to mix liquid.Inspection by sampling, product are faint yellow or the milky transparency liquid.This liquid and water can dissolve each other fully, are difficult for foaming, good stability.
Claims (4)
1. total sulfides removing solvent, contain N methyldiethanol amine, it is characterized in that: also comprise defoamer and activator, wherein, described N methyldiethanol amine content in described total sulfides removing solvent is 30～95wt%, the content of described defoamer in described total sulfides removing solvent is 0.1～0.5wt%, and the content of described activator in described total sulfides removing solvent is 5～69.5wt%.
2. total sulfides removing solvent according to claim 1 is characterized in that: described activator is methenamine, sulfolane, monoethanolamine, sterically hindered amines, isopropanolamine or both or both above mixtures.
3. total sulfides removing solvent according to claim 1 is characterized in that: described defoamer is a dimethicone.
4. the preparation method of a total sulfides removing solvent is characterized in that comprising following preparation process:
A. add in reactor that content is the N methyldiethanol amine of 30～95wt% in the total sulfides removing solvent;
B. in reactor, add content in the total sulfides removing solvent successively and be that content is 5～69.5wt% activator in the defoamer of 0.1～0.5wt% and the total sulfides removing solvent;
C. it is even to it to continue to mix liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100247367A CN101264413A (en) | 2008-04-30 | 2008-04-30 | Total sulfides removing solvent and preparation thereof |
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| CNA2008100247367A CN101264413A (en) | 2008-04-30 | 2008-04-30 | Total sulfides removing solvent and preparation thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157348A (en) * | 2013-04-03 | 2013-06-19 | 江苏创新石化有限公司 | High efficient desulfurizing agent with low energy consumption |
| CN103357261A (en) * | 2013-06-24 | 2013-10-23 | 宜兴汉光高新石化有限公司 | Compound desulfurizer and preparation method thereof |
| CN106310873A (en) * | 2015-06-17 | 2017-01-11 | 中国石油化工股份有限公司 | Selective desulphurization solvent of refinery gas |
| CN106479586A (en) * | 2016-12-05 | 2017-03-08 | 江苏汉光实业股份有限公司 | Environment-friendly type H2S scavenger and preparation method thereof |
| CN107569974A (en) * | 2016-07-05 | 2018-01-12 | 中国石油化工股份有限公司 | Laminated desulfurizer and preparation method thereof |
| CN108144318A (en) * | 2018-02-01 | 2018-06-12 | 南京英斯派工程技术有限公司 | A kind of associated gas desulphurization system |
| CN108554127A (en) * | 2018-05-04 | 2018-09-21 | 南京万象新材料科技有限责任公司 | A kind of compound desulfurizing assistant agent and application |
| CN108822908A (en) * | 2018-06-27 | 2018-11-16 | 中国石油化工股份有限公司 | A kind of natural gas organic sulfur removal agent and preparation method thereof |
| CN109420410A (en) * | 2017-08-22 | 2019-03-05 | 中国石油化工股份有限公司 | The absorbent of organic sulfur in a kind of efficient removal acidic mixed gas |
| CN106566489B (en) * | 2016-10-19 | 2020-09-22 | 中国石油化工股份有限公司 | High-acidity gas reservoir water-based microbubble well killing fluid |
| CN114452777A (en) * | 2022-01-25 | 2022-05-10 | 江苏创新石化有限公司 | Special ultralow-emission desulfurization solvent for SCOT tail gas of sulfur recovery device of oil refinery |
-
2008
- 2008-04-30 CN CNA2008100247367A patent/CN101264413A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157348A (en) * | 2013-04-03 | 2013-06-19 | 江苏创新石化有限公司 | High efficient desulfurizing agent with low energy consumption |
| CN103357261A (en) * | 2013-06-24 | 2013-10-23 | 宜兴汉光高新石化有限公司 | Compound desulfurizer and preparation method thereof |
| CN103357261B (en) * | 2013-06-24 | 2016-04-27 | 宜兴汉光高新石化有限公司 | A kind of composite desulfurizing agent and preparation method thereof |
| CN106310873A (en) * | 2015-06-17 | 2017-01-11 | 中国石油化工股份有限公司 | Selective desulphurization solvent of refinery gas |
| CN107569974A (en) * | 2016-07-05 | 2018-01-12 | 中国石油化工股份有限公司 | Laminated desulfurizer and preparation method thereof |
| CN107569974B (en) * | 2016-07-05 | 2019-10-29 | 中国石油化工股份有限公司 | Laminated desulfurizer and preparation method thereof |
| CN106566489B (en) * | 2016-10-19 | 2020-09-22 | 中国石油化工股份有限公司 | High-acidity gas reservoir water-based microbubble well killing fluid |
| CN106479586A (en) * | 2016-12-05 | 2017-03-08 | 江苏汉光实业股份有限公司 | Environment-friendly type H2S scavenger and preparation method thereof |
| CN109420410B (en) * | 2017-08-22 | 2021-11-09 | 中国石油化工股份有限公司 | Absorbent for efficiently removing organic sulfur in acidic mixed gas |
| CN109420410A (en) * | 2017-08-22 | 2019-03-05 | 中国石油化工股份有限公司 | The absorbent of organic sulfur in a kind of efficient removal acidic mixed gas |
| CN108144318A (en) * | 2018-02-01 | 2018-06-12 | 南京英斯派工程技术有限公司 | A kind of associated gas desulphurization system |
| CN108144318B (en) * | 2018-02-01 | 2023-12-19 | 南京佳华科技股份有限公司 | Associated gas desulfurization system |
| CN108554127B (en) * | 2018-05-04 | 2021-01-19 | 南京万象新材料科技有限责任公司 | Composite desulfurization auxiliary agent and application |
| CN108554127A (en) * | 2018-05-04 | 2018-09-21 | 南京万象新材料科技有限责任公司 | A kind of compound desulfurizing assistant agent and application |
| CN108822908A (en) * | 2018-06-27 | 2018-11-16 | 中国石油化工股份有限公司 | A kind of natural gas organic sulfur removal agent and preparation method thereof |
| CN114452777A (en) * | 2022-01-25 | 2022-05-10 | 江苏创新石化有限公司 | Special ultralow-emission desulfurization solvent for SCOT tail gas of sulfur recovery device of oil refinery |
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Open date: 20080917 |