CN101322900A - Compositional type reclaiming agent - Google Patents
Compositional type reclaiming agent Download PDFInfo
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- CN101322900A CN101322900A CNA2008100227861A CN200810022786A CN101322900A CN 101322900 A CN101322900 A CN 101322900A CN A2008100227861 A CNA2008100227861 A CN A2008100227861A CN 200810022786 A CN200810022786 A CN 200810022786A CN 101322900 A CN101322900 A CN 101322900A
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- type reclaiming
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Abstract
The invention relates to a high-effective remover of hydrogen sulfide at normal temperature and a preparation method thereof, in particular to a compound high-effective sulfur remover and the preparation method thereof. The sulfur remover contains N-methyl diethanol amine with the content of 93.5 weight percent to 96 weight percent, and the other components are an anti-foaming agent, a corrosion inhibitor, an antioxidant and an intensifier. The preparation method of the sulfur remover is that 93.5 portions to 96 portions (all portions are weight portions) of N-methyl diethanol amine, 0.05 portion to 0.2 portion of anti-foaming agent, 0.02 portion to 0.05 portion of corrosion inhibitor, 0.05 portion to 0.2 portion of antioxidant and 3 portions to 6 portions of intensifier are stirred in a stirring kettle into uniform solution, that is, the compound sulfur remover. The compound sulfur remover of the invention solves the problem that the present MDEA compound sulfur remover can affect the sulfur removing effect by reacting with CO2.
Description
Technical field
The present invention relates to normal temperature high efficient remover of a kind of hydrogen sulfide and preparation method thereof, especially a kind of Compositional type efficient desulfurizing agent and preparation method thereof.
Background technology
Both at home and abroad the research of Treatment of Hydrogen Sulfide Waste Gas is more and more paid attention to, the method for 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 Compositional type reclaiming 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 Compositional type reclaiming 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, arsyl technology does not re-use substantially; Vanadium base technology also will be subjected to the restriction of environmental regulation because use contains the vanadium washing lotion; PDS (the alert sulfonate that bores of double-core phthalein) desulfur technology is owing to catalyst system therefor PDS cost height, and desulphurization cost is corresponding wants high; Iron-based technology 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.At present, it is N methyldiethanol amine that a kind of Compositional type reclaiming agent MDEA that is widely used is arranged in the wet desulphurization, MDEA and H
2S forms more stable soda acid complex compound in water, but also can with a large amount of CO that exist in the gas
2Form the soda acid complex compound, absorb H thereby influence MDEA
2The problem of the amount of S.
Summary of the invention
The technical problem to be solved in the present invention is: present MDEA Compositional type reclaiming agent exists and CO
2Reaction influences the problem of the effect of desulfurization, the invention provides a kind of Compositional type reclaiming agent.
The technical solution adopted for the present invention to solve the technical problems is: the invention provides a kind of Compositional type reclaiming agent, wherein contain N methyldiethanol amine, N methyldiethanol amine content in Compositional type reclaiming agent is 93.5～96wt%, and all the other are defoamer, corrosion inhibiter, antioxidant and reinforcing agent.
The purity of employed N methyldiethanol amine is more than or equal to 95wt% among the present invention.
Defoamer used in the present invention is a dimethicone, its use amount accounts for 0.05～0.2wt% of whole Compositional type reclaiming agent, dimethicone is a kind of defoamer commonly used, can well eliminate the foam that Compositional type reclaiming agent produces when absorbing sulfurous gas, reaches the purpose of fast Absorption.
Corrosion inhibiter used in the present invention is thiocarbamide, dimethyl sulfourea, 1,4-succinimide mercaptans or sulfo-diethylene glycol (DEG), and its use amount accounts for 0.02～0.05wt% of whole Compositional type reclaiming agent, and corrosion inhibiter can form film in equipment surface, less absorption H
2Behind the S, the H+ that ionization goes out in solution is to the erosion of equipment surface.
Employed antioxidant is 2 among the present invention, and 6-DI-tert-butylphenol compounds, hydroquinones, MEHQ or diethyl hydroxylamine, the content in described Compositional type reclaiming agent are 0.05～0.2wt%.
Employed reinforcing agent is boric acid, phosphoric acid, phosphorous acid, polyethers phosphoric acid, butyric acid, valeric acid or oleic acid among the present invention, and the content in described Compositional type reclaiming agent is 3～6wt%.
Preparation method of the present invention stirs the reinforcing agent of the N methyldiethanol amine of 93.5～96 parts (following umber is mass fraction), 0.05～0.2 part of defoamer, 0.02～0.05 part of corrosion inhibiter, 0.05～0.2 part of antioxidant and 3～6 minutes and makes uniform solution, i.e. Compositional type reclaiming agent in stirred tank.
The present invention is applicable to the holder H of natural gas, refinery gas
2S handles, in particular for CO in the unstripped gas
2(vol%)/H
2The natural gas that S (vol%) volume ratio is high, the desulfurization of refinery gas are handled.
The invention has the beneficial effects as follows that the present invention has than MDEA or based on the higher selection of common Compositional type reclaiming agent of MDEA and absorbs H when handling the raw material of high carbon-sulfur ratio
2The ability of S can make the H in the regenerated acidic gas
2The S volume content increases by 5～10%, and desulphurization system solvent internal circulating load can descend 10% simultaneously, is the new product of a kind of energy-conservation, consumption reduction, environmental protection.
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.
Example one
With the N methyldiethanol amine of 95 parts of purity 98wt%, 0.2 part of dimethicone, 0.05 part of dimethyl sulfourea, 0.2 part 2,6-DI-tert-butylphenol compounds and 6 fens phosphoric acid stir in stirred tank makes uniform solution, i.e. Compositional type reclaiming agent.
Example two
With the N methyldiethanol amine of 93.5 parts of purity 99wt%, 0.1 part of dimethicone, 0.03 part 1,4-succinimide mercaptans, 0.05 part of MEHQ and 4 fens butyric acid stir in stirred tank makes uniform solution, i.e. Compositional type reclaiming agent.
Example three
The N methyldiethanol amine of 96 parts of purity 95wt%, 0.1 part of dimethicone, 0.03 portion of sulfo-diethylene glycol (DEG), 0.05 part of hydroquinones and 4 segregation ether phosphoric acids are stirred in stirred tank make uniform solution, i.e. Compositional type reclaiming agent.
Specific embodiment described herein only is illustrating spirit of the present invention, real name person of ordinary skill in the field can do various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can not depart from spirit of the present invention.
Claims (8)
1. a Compositional type reclaiming agent wherein contains N methyldiethanol amine, it is characterized in that: described N methyldiethanol amine content in described Compositional type reclaiming agent is 93.5～96wt%, and all the other are defoamer, corrosion inhibiter, antioxidant and reinforcing agent.
2. Compositional type reclaiming agent according to claim 1 is characterized in that: the purity of described N methyldiethanol amine is more than or equal to 95wt%.
3. Compositional type reclaiming agent according to claim 1, it is characterized in that: the content of described defoamer in described Compositional type reclaiming agent is 0.05～0.2wt%, the content of described corrosion inhibiter in described Compositional type reclaiming agent is 0.02～0.05wt%, the content of described antioxidant in described Compositional type reclaiming agent is 0.05～0.2wt%, and the content of described reinforcing agent in described Compositional type reclaiming agent is 3～6wt%.
4. Compositional type reclaiming agent according to claim 1 and 2 is characterized in that: described defoamer is a dimethicone.
5. Compositional type reclaiming agent according to claim 1 and 2 is characterized in that: described corrosion inhibiter is thiocarbamide, dimethyl sulfourea, 1,4-succinimide mercaptans or sulfo-diethylene glycol (DEG).
6. Compositional type reclaiming agent according to claim 1 and 2 is characterized in that: described antioxidant is 2,6-DI-tert-butylphenol compounds, hydroquinones, MEHQ or diethyl hydroxylamine.
7. Compositional type reclaiming agent according to claim 1 and 2 is characterized in that: described reinforcing agent is boric acid, phosphoric acid, phosphorous acid, polyethers phosphoric acid, butyric acid, valeric acid or oleic acid.
8. Compositional type reclaiming agent preparation method according to claim 1, it is characterized in that: the reinforcing agent of the N methyldiethanol amine of 93.5～96 parts (following umber is mass fraction), 0.05～0.2 part of defoamer, 0.02～0.05 part of corrosion inhibiter, 0.05～0.2 part of antioxidant and 3～6 minutes is stirred in stirred tank make uniform solution, i.e. Compositional type reclaiming agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100227861A CN101322900A (en) | 2008-07-29 | 2008-07-29 | Compositional type reclaiming agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100227861A CN101322900A (en) | 2008-07-29 | 2008-07-29 | Compositional type reclaiming agent |
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| CN101322900A true CN101322900A (en) | 2008-12-17 |
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|---|---|---|---|
| CNA2008100227861A Pending CN101322900A (en) | 2008-07-29 | 2008-07-29 | Compositional type reclaiming agent |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773783A (en) * | 2010-03-17 | 2010-07-14 | 南京碳环生物质科技有限公司 | Wet catalytic oxidative desulfurization method for biogas |
| 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 |
| CN103537170A (en) * | 2013-10-10 | 2014-01-29 | 盘锦鑫安源化学工业有限公司 | Highly selective desulfurization solvent and preparation method thereof |
| CN103664651A (en) * | 2013-11-22 | 2014-03-26 | 江苏汉光实业股份有限公司 | Desulfurizer production system |
| CN107081052A (en) * | 2017-06-13 | 2017-08-22 | 中国石油集团工程设计有限责任公司 | Acid gas absorbent and application containing double (3 aminopropyl) polyethylene glycol |
| CN108816196A (en) * | 2018-07-24 | 2018-11-16 | 淄博凯美可工贸有限公司 | Highly selective Compositional type reclaiming agent and preparation method thereof |
| CN111054198A (en) * | 2018-10-16 | 2020-04-24 | 上海赛思特新能源科技有限公司 | Compound desulfurizer and preparation method thereof |
| CN111117689A (en) * | 2019-12-27 | 2020-05-08 | 江苏科创石化有限公司 | Efficient desulfurization composite solvent and preparation method thereof |
| CN116550100A (en) * | 2023-05-30 | 2023-08-08 | 江苏太湖新材料控股有限公司 | Desulfurizing agent and preparation method thereof |
-
2008
- 2008-07-29 CN CNA2008100227861A patent/CN101322900A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773783A (en) * | 2010-03-17 | 2010-07-14 | 南京碳环生物质科技有限公司 | Wet catalytic oxidative desulfurization method for biogas |
| 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 |
| CN103537170A (en) * | 2013-10-10 | 2014-01-29 | 盘锦鑫安源化学工业有限公司 | Highly selective desulfurization solvent and preparation method thereof |
| CN103537170B (en) * | 2013-10-10 | 2015-09-30 | 盘锦鑫安源化学工业有限公司 | Desulfurization solvent of a kind of high selectivity and preparation method thereof |
| CN103664651A (en) * | 2013-11-22 | 2014-03-26 | 江苏汉光实业股份有限公司 | Desulfurizer production system |
| CN107081052A (en) * | 2017-06-13 | 2017-08-22 | 中国石油集团工程设计有限责任公司 | Acid gas absorbent and application containing double (3 aminopropyl) polyethylene glycol |
| CN107081052B (en) * | 2017-06-13 | 2019-10-25 | 中国石油工程建设有限公司 | Acid gas absorbent and application containing bis- (3- aminopropyl) polyethylene glycol |
| CN108816196A (en) * | 2018-07-24 | 2018-11-16 | 淄博凯美可工贸有限公司 | Highly selective Compositional type reclaiming agent and preparation method thereof |
| CN108816196B (en) * | 2018-07-24 | 2021-05-14 | 淄博凯美可工贸有限公司 | High-selectivity compound desulfurizer and preparation method thereof |
| CN111054198A (en) * | 2018-10-16 | 2020-04-24 | 上海赛思特新能源科技有限公司 | Compound desulfurizer and preparation method thereof |
| CN111117689A (en) * | 2019-12-27 | 2020-05-08 | 江苏科创石化有限公司 | Efficient desulfurization composite solvent and preparation method thereof |
| CN111117689B (en) * | 2019-12-27 | 2021-08-31 | 江苏科创石化有限公司 | Efficient desulfurization composite solvent and preparation method thereof |
| CN116550100A (en) * | 2023-05-30 | 2023-08-08 | 江苏太湖新材料控股有限公司 | Desulfurizing agent and preparation method thereof |
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Open date: 20081217 |