CN102337165A - Application of waste liquid of AOS sulfonation electrostatic precipitation in preparing coal water slurry additive - Google Patents
Application of waste liquid of AOS sulfonation electrostatic precipitation in preparing coal water slurry additive Download PDFInfo
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- CN102337165A CN102337165A CN2011101007945A CN201110100794A CN102337165A CN 102337165 A CN102337165 A CN 102337165A CN 2011101007945 A CN2011101007945 A CN 2011101007945A CN 201110100794 A CN201110100794 A CN 201110100794A CN 102337165 A CN102337165 A CN 102337165A
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- sulfonation
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- waste liquid
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- slurries additive
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Abstract
The invention relates to application of waste liquid of AOS sulfonation electrostatic precipitation in preparing a coal water slurry additive, specifically to application of waste liquid obtained by carrying out electrostatic precipitation on tail gas generated in the process of AOS sulfonation in preparing the coal water slurry additive. The invention aims to provide a novel method of treating a by-product of AOS sulfonation. The AOS sulfonation by-product contains a great amount of sulfuric acid and organic acid, making it difficult to purify the by-product, and direct discharge of the by-product poses great pollution to environment. In the invention, the by-product is used for preparing the coal water slurry additive, thereby mitigating environmental protection pressure and creating economic benefits.
Description
Technical field
The present invention relates to the liquid waste disposal application method that the application, particularly AOS sulfonated tail gas of some by products in the sulfonation process of AOS produce in static demist process.
Background technology
In the sulfonation process of AOS, have some by products and generate.Adopt the AOS of SO 3 sulfonated explained hereafter; Get into the electrostatic precipitator of exhaust treatment system from the tail gas of sulfonation operating unit generation; Unreacted sulfurous gas, sulfur trioxide gas that contains in the tail gas and the small droplets that contains various ingredients gather and just produce the black thick liquid that has irritating smell of color together through the processing of electrostatic precipitator.This liquid is mixed by multiple organism and inorganics to be formed, and mineral acid generally accounts for about 20% in the spent acid, and all the other are organism such as sultone, oversulfonate thing.Separate comparatively difficulty, be difficult to be used.And be strongly-acid, big for environment pollution, be that each sulfonation producer needs to be resolved hurrily and but do not have the difficult problem that solves always.
Summary of the invention
The object of the invention aims to provide the handling problem that a kind of application method can effectively solve the waste liquid that the tail gas in the AOS sulfonation process handle to produce through electrostatic precipitator, and the processing cost that also can practice thrift waste material turns waste into wealth.
Application method of the present invention is: the tail gas in the AOS sulfonation process is handled the waste liquid that produces through electrostatic precipitator and is used to prepare slurries additive agent.
Application method of the present invention may further comprise the steps: it is soluble in water that the tail gas in the AOS sulfonation process is handled the waste liquid that produces through electrostatic precipitator; Add PH regulator, skimmer, visbreaking agent and stablizer, stir; To pH8～10, obtain additive.
The comparatively preferred application method of the present invention is 25～30% AOS waste liquid; 3～10% pH regulator agent; 0.02～0.03% skimmer; 0～0.5% visbreaking agent paratoluenesulfonic acid sodium salt; 1.5～2.0% stablizer Xylo-Mucine; 60～70% clear water, above unit is mass percent.
Concrete preparation process is:
(a) will get into the electrostatic precipitator of exhaust treatment system from the tail gas that sulfonation operating unit produces; The unreacted sulfurous gas that contains in the tail gas; Sulfur trioxide gas and the small droplets that contains various ingredients gather and just produce the black thick liquid that has irritating smell of color together through the processing of electrostatic precipitator; With this thick liquid is that waste liquid is soluble in water;
(b) the PH regulator is soluble in water, add skimmer, visbreaking agent paratoluenesulfonic acid sodium salt and stablizer Xylo-Mucine;
(c) solution in (b) is slowly added in (a), stir at a slow speed;
(d) add the water stirring and leave standstill, obtain pH 8～10 finished products.
PH regulator agent in the above method can be selected from calcium hydroxide, lime carbonate, yellow soda ash or quicklime.
Skimmer can be polysiloxane oil.
Can reduce the foam that produces in the mixing process through adding skimmer in the scheme of the present invention, through the viscosity of visbreaking agent reduction coal water slurry, raising is mobile, is in order to improve the stability of coal water slurry through stablizer.
Can slurries additive agent of the present invention be made into finite concentration and add in the coal dust, also can directly add.The addition of slurries additive agent of the present invention comparatively is preferably 0.3%～0.7% of butt coal dust weight.What the butt coal dust was represented is that a certain proportion of rough coal powder particles mixes with the fine breeze particle, makes the particle diameter of pulverized coal particle be bimodal distribution, and particle diameter is no less than 75% less than 74 μ m's.Raw coal can derive from the Shenhua colliery, Shandong Yan Kuang, Aug. 1st colliery, Shandong, Pang Zhuan colliery, Xuzhou, colliery, Datong etc.
Coal water slurry is the coal-based fluid cleaning fuel that rises the eighties in last century, and it can have good mobile and stable as oil, can pumping, and atomizing and stable burning are oily coal clean fuels of a kind of more satisfactory generation.Coal water slurry with industrial application value will have high density, LV and satisfactory stability property.Have above these performances, when slurrying, must add minor amounts of additives.Therefore, the performance of additive is the principal element that influences important parameters such as viscosity of coal-water slurry, stability, concentration and cost.And slurries additive agent preparation method provided by the invention prepares coal water slurry with AOS sulfonation by product, has solved the handling problem of pollutent.The paste consistency of processing is high, has stability and mobile preferably, in preparation high-performance slurry, greatly reduces cost.
The present invention aims to provide a kind of novel method of the AOS of processing sulfonation by product.AOS sulfonation by product contains a large amount of sulfuric acid and organic acid, is difficult to carry out purification processes, and it is very big directly to discharge environmental pollution.The present invention is used for the preparation of slurries additive agent with this by product, when alleviating environmental protection pressure, has created economic benefit.The present invention not only provides a kind of Pollutant Treatment to utilize method, also for Cheap highly effective prepares slurries additive agent effective way is provided.
Outstanding beneficial effect of the present invention also is embodied in:
1. utilize industrial waste acid system slurries additive agent, with low cost, and reduced the discharging of pollutent;
2. the slurry stability of processing is good, generally deposits the no obvious sediment in a week back.Stir once weekly, deposit after one month and do not have obvious sediment;
3. can cooperate with other additive to be suitable for, reduce the usage quantity of this additive, practice thrift cost.
4. application method of the present invention is simple, easy to operate, and step is all carried out at normal temperatures and pressures, and equipment requirements is not high.
Embodiment
Below in conjunction with embodiment the present invention is carried out further detailed explanation, below be merely preferred embodiment of the present invention, can not limit scope of the present invention with this.The equalization of promptly doing according to claim of the present invention generally changes and decorates, and all should still belong in the scope that patent of the present invention contains.
Embodiment 1
Step is following:
1. will get into the electrostatic precipitator of exhaust treatment system from the tail gas that sulfonation operating unit produces; The unreacted sulfurous gas that contains in the tail gas; Sulfur trioxide gas and the small droplets that contains various ingredients gather and just produce the black thick liquid that has irritating smell of color together through the processing of electrostatic precipitator; With this thick liquid is that waste liquid is dissolved in the less water;
2. the pH regulator agent is dissolved in the less water, adds skimmer, visbreaking agent and stablizer stir;
3. the solution in (2) is slowly added in (1), add the surplus clear water, stir at a slow speed;
4., finely tune, obtain finished product to pH8～10.
Finished product is used the preparation with coal water slurry, and raw coal is from Shandong Yan Kuang.The addition of this finished product is 0.5%, can process that to contain the coal amount be 65% coal water slurry, and viscosity is 925mPa.s.
Embodiment 2
Finished product is used the preparation with coal water slurry, and raw coal is from the colliery, Datong.The addition of this finished product is 0.55%, can process that to contain the coal amount be 66% coal water slurry, and viscosity is 950mPa.s.
Claims (6)
1.AOS sulfonation static demist waste liquid is applied to prepare slurries additive agent, it is characterized in that, the tail gas in the AOS sulfonation process is handled the waste liquid that produces through electrostatic precipitator and is used to prepare slurries additive agent.
2. AOS sulfonation static demist waste liquid according to claim 1 is applied to prepare slurries additive agent, it is characterized in that, may further comprise the steps: it is soluble in water that the tail gas in the AOS sulfonation process is handled the waste liquid that produces through electrostatic precipitator; Add PH regulator, skimmer, visbreaking agent and stablizer, stir; To pH8～10, obtain additive.
3. AOS sulfonation static demist waste liquid according to claim 2 is applied to prepare slurries additive agent, it is characterized in that 25～30% AOS waste liquid; 3～10% pH regulator agent; 0.02～0.03% skimmer; 0～0.5% visbreaking agent paratoluenesulfonic acid sodium salt; 1.5～2.0% stablizer Xylo-Mucine; 60～70% clear water, above unit is mass percent.
4. be applied to prepare slurries additive agent according to claim 2 or 3 described AOS sulfonation static demist waste liquids, it is characterized in that the addition of the slurries additive agent of gained is 0.3%～0.7% of a butt coal dust weight.
5. be applied to prepare slurries additive agent according to claim 2 or 3 described AOS sulfonation static demist waste liquids, it is characterized in that the pH regulator agent is calcium hydroxide, lime carbonate, yellow soda ash or quicklime.
6. be applied to prepare slurries additive agent according to claim 2 or 3 described AOS sulfonation static demist waste liquids, it is characterized in that preparation process is:
(a) will get into the electrostatic precipitator of exhaust treatment system from the tail gas that sulfonation operating unit produces; The unreacted sulfurous gas that contains in the tail gas; Sulfur trioxide gas and the small droplets that contains various ingredients gather and just produce the black thick liquid that has irritating smell of color together through the processing of electrostatic precipitator; With this thick liquid is that waste liquid is soluble in water;
(b) the PH regulator is soluble in water, add skimmer, visbreaking agent paratoluenesulfonic acid sodium salt and stablizer Xylo-Mucine; The pH regulator agent is a calcium hydroxide, lime carbonate, yellow soda ash or quicklime;
(c) solution in (b) is slowly added in (a), stir at a slow speed;
(d) add the water stirring and leave standstill, obtain pH 8～10 finished products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110100794.5A CN102337165B (en) | 2011-04-21 | 2011-04-21 | Application of waste liquid of AOS sulfonation electrostatic precipitation in preparing coal water slurry additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110100794.5A CN102337165B (en) | 2011-04-21 | 2011-04-21 | Application of waste liquid of AOS sulfonation electrostatic precipitation in preparing coal water slurry additive |
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| CN102337165A true CN102337165A (en) | 2012-02-01 |
| CN102337165B CN102337165B (en) | 2014-08-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739226A (en) * | 2013-12-16 | 2014-04-23 | 浙江赞宇科技股份有限公司 | Method for preparing cement additive by using AES sulfonated electrostatic demisting waste liquid |
| CN114573136A (en) * | 2022-01-18 | 2022-06-03 | 天津天智精细化工有限公司 | Electrostatic demisting and washing method for fatty alcohol ether sulfonated tail gas |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1028525C (en) * | 1988-07-20 | 1995-05-24 | 国际壳牌研究有限公司 | Process for preparation of internal olefin sulphonates |
| CN101445472A (en) * | 2008-12-28 | 2009-06-03 | 嘉兴赞宇科技有限公司 | Method for preparing powdered Alpha-alkenyl sulphonate |
-
2011
- 2011-04-21 CN CN201110100794.5A patent/CN102337165B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1028525C (en) * | 1988-07-20 | 1995-05-24 | 国际壳牌研究有限公司 | Process for preparation of internal olefin sulphonates |
| CN101445472A (en) * | 2008-12-28 | 2009-06-03 | 嘉兴赞宇科技有限公司 | Method for preparing powdered Alpha-alkenyl sulphonate |
Non-Patent Citations (1)
| Title |
|---|
| 周德悟: "工业废液直接用作水煤浆添加剂", 《煤化工》, no. 66, 5 March 1994 (1994-03-05), pages 23 - 27 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739226A (en) * | 2013-12-16 | 2014-04-23 | 浙江赞宇科技股份有限公司 | Method for preparing cement additive by using AES sulfonated electrostatic demisting waste liquid |
| CN114573136A (en) * | 2022-01-18 | 2022-06-03 | 天津天智精细化工有限公司 | Electrostatic demisting and washing method for fatty alcohol ether sulfonated tail gas |
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| Publication number | Publication date |
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| CN102337165B (en) | 2014-08-20 |
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