CN102320694A - Ash water scale inhibiting and dispersing agent, and application thereof - Google Patents
Ash water scale inhibiting and dispersing agent, and application thereof Download PDFInfo
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- CN102320694A CN102320694A CN 201110244324 CN201110244324A CN102320694A CN 102320694 A CN102320694 A CN 102320694A CN 201110244324 CN201110244324 CN 201110244324 CN 201110244324 A CN201110244324 A CN 201110244324A CN 102320694 A CN102320694 A CN 102320694A
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- acrylamido
- water
- propane sulfonic
- methyl propane
- ash water
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Abstract
The present invention discloses an ash water scale inhibiting and dispersing agent, and an application thereof. The ash water scale inhibiting and dispersing agent is prepared from the following raw materials, wherein the raw materials comprise, by weight, 60-65% of a multicomponent copolymer, 5-10% of a corrosion inhibitor, 7-10% of a phosphonate and 15-20% of water. According to the present invention, the ash water scale inhibiting and dispersing agent is applicable for treating the ash water from the texaco gasification process; the scaling problem of the ash water system in the texaco coal water slurry gasification process is effectively solved; the influence on the production due to the ash water scaling and the corrosion is effectively reduced; the operating cycle of the production equipment is prolonged; the sewage discharging can be reduced; the reuse efficiency of the ash water is improved, and the water resource is saved.
Description
Technical field
The present invention relates to the dirt dispersion agent field, specifically relate to a kind of buck dirt dispersion agent and application thereof.
Background technology
Coal water slurry gasification, grey water handing technology generally comprises in the gas-making process: cooling Heisui River, heat recuperation, gas dissolved remove, pulp water separates and water cycle is used.Because buck has characteristics such as high pressure, high temperature, high turbidity, high firmness, so it is in operational process, and phenomenons such as the deposition of suspended substance, fouling, corrosion often take place, and have a strong impact on the normal operation of equipment.
Summary of the invention
To some problems that exist in the prior art, one of the object of the invention is: provide a kind of and can effectively slow down the buck fouling, extend manufacture cycle, reduce the buck dirt dispersion agent of quantity of wastewater effluent; Another object of the present invention is to: the application of this buck dirt dispersion agent is provided.
For realizing above-mentioned purpose, the present invention adopts following technical scheme to realize:
The buck dirt dispersion agent, by weight percentage, the multiple copolymer by 60～65%, 5～10% inhibiter, 7～10% phosphonate and 15～20% water make;
Described multiple copolymer is selected for use: vinylformic acid-propenoate-2-acrylamido-methyl propane sulfonic acid multipolymer;
Described inhibiter is selected for use: imidazolidine derivatives;
Described phosphonate is selected for use: HEDP salt.
Described vinylformic acid-propenoate-2-acrylamido-methyl propane sulfonic acid multipolymer is for by quality ratio: vinylformic acid: propenoate: 2-acrylamido-methyl propane sulfonic acid is 4: 0.5: 1.8～2.0;
Vinylformic acid, propenoate, 2-acrylamido and the methyl propane sulfonic acid that adopts said ratio is polymerization under 79～81 ℃ the condition in temperature of reaction.
Described propenoate is a Propylene glycol monoacrylate.
The application of aforesaid buck dirt dispersion agent is applicable in the Inferior of Texaco Gasification Technology grey water handing.
In the technique scheme, described imidazolidine derivatives inhibiter is outsourcing, but when outsourcing, must satisfy following quality index:
| Project | Index |
| Active matter content | ≥95％ |
| Corrosion inhibition rate | ≥98％ |
| 20 ℃ of density | 0.95～1.02g/cm 3 |
| Flash-point | ≥80℃ |
| Condensation point | ≤-10℃ |
| Solvability | Arbitrary proportion is water-soluble |
Above-mentioned vinylformic acid-propenoate-2-acrylamido-methyl propane sulfonic acid multiple copolymer must satisfy quality index:
| The index project | The internal control value |
| Density (20 ℃) g/ml | 1.1～1.2 |
| PH (the 10g/l aqueous solution) | 3.5～4.5 |
| Solids content % | ≥30 |
| Free monomer (in CH2=CH-COOH) content % | ≤0.3 |
Beneficial effect of the present invention is:
1, dirt dispersion agent of the present invention it contain a plurality of functional groups: strong acid (sulfonic group), weak acid base (carboxylic acid group), nonionic functional group, wherein the weak acid base only has the faint adsorptive power and the dissemination of retained part to the suspended particle surface.And strong acid wherein only has faint adsorptive power to the suspended particle surface, its with negative charge the suspended particle that has identical negative charge is had repulsive force, this repulsive force has stoped suspended particle to condense into macrobead and has deposited.The nonionic functional group not only has stronger magnetism to the suspended particle surface, can also produce repulsive interaction to prevent its deposition to suspended particle.Therefore the present invention can disperse most settling under any operational condition, effectively solves ash water system scale problems in the texaco coal-water slurry gasification technology.
2, therefore the present invention, has prolonged the cycle of operation of production unit owing to can effectively slow down buck fouling, the influence of corrosion to producing.
3, therefore the present invention, can reduce the repeating utilization factor that sewage discharge improves buck owing to have higher dispersion and scale inhibition ability, practices thrift the water source.
Embodiment
Through embodiment, the present invention is done detailed description below:
Embodiment 1
The buck dirt dispersion agent, by weight percentage, the vinylformic acid-Propylene glycol monoacrylate by 62%-2-acrylamido-methyl propane sulfonic acid multiple copolymer, 8% imidazolidine derivatives, 10% HEDP salt and 20% water make;
Described vinylformic acid-Propylene glycol monoacrylate-2-acrylamido-methyl propane sulfonic acid multipolymer is for by quality ratio: vinylformic acid: Propylene glycol monoacrylate: 2-acrylamido-methyl propane sulfonic acid is 4: 0.5: 1.8, and vinylformic acid, Propylene glycol monoacrylate, 2-acrylamido and the methyl propane sulfonic acid that adopts said ratio is polymerization under 79 ℃ the condition in temperature of reaction.
In the technique scheme, described imidazolidine derivatives inhibiter is outsourcing, but when outsourcing, must satisfy following quality index:
| Project | Index |
| Active matter content | 98％ |
| Corrosion inhibition rate | 98％ |
| 20 ℃ of density | 1.1g/cm3 |
| Flash-point | 95℃ |
| Condensation point | -15℃ |
| Solvability | Arbitrary proportion is water-soluble |
Above-mentioned vinylformic acid-propenoate-2-acrylamido-methyl propane sulfonic acid multiple copolymer must satisfy quality index:
| The index project | The internal control value |
| Density (20 ℃) g/ml | 1.130 |
| PH (the 10g/l aqueous solution) | 4.0 |
| Solids content % | 33.0 |
| Free monomer (in CH2=CH-COOH) content % | 0.1 |
Aforesaid buck dirt dispersion agent, it is applicable in the Inferior of Texaco Gasification Technology grey water handing.
Embodiment 2
The buck dirt dispersion agent, by weight percentage, the vinylformic acid-Propylene glycol monoacrylate by 65%-2-acrylamido-methyl propane sulfonic acid multiple copolymer, 6% imidazolidine derivatives, 9% HEDP salt and 20% water make;
Described vinylformic acid-Propylene glycol monoacrylate-2-acrylamido-methyl propane sulfonic acid multipolymer is for by quality ratio: vinylformic acid: Propylene glycol monoacrylate: 2-acrylamido-methyl propane sulfonic acid is 4: 0.5: 1.9, and vinylformic acid, Propylene glycol monoacrylate, 2-acrylamido and the methyl propane sulfonic acid that adopts said ratio is polymerization under 80 ℃ the condition in temperature of reaction.
In the technique scheme, described imidazolidine derivatives inhibiter is outsourcing, but when outsourcing, must satisfy following quality index:
| Project | Index |
| Active matter content | 98％ |
| Corrosion inhibition rate | 98％ |
| 20 ℃ of density | 1.1g/cm3 |
| Flash-point | 95℃ |
| Condensation point | -15℃ |
| Solvability | Arbitrary proportion is water-soluble |
Above-mentioned vinylformic acid-propenoate-2-acrylamido-methyl propane sulfonic acid multiple copolymer must satisfy quality index:
| The index project | The internal control value |
| Density (20 ℃) g/ml | 1.130 |
| PH (the 10g/l aqueous solution) | 4.0 |
| Solids content % | 33.0 |
| Free monomer (in CH2=CH-COOH) content % | 0.1 |
Aforesaid buck dirt dispersion agent, it is applicable in the Inferior of Texaco Gasification Technology grey water handing.
Embodiment 3
The buck dirt dispersion agent, by weight percentage, the vinylformic acid-Propylene glycol monoacrylate by 65%-2-acrylamido-methyl propane sulfonic acid multiple copolymer, 10% imidazolidine derivatives, 10% HEDP salt and 15% water make;
Described vinylformic acid-Propylene glycol monoacrylate-2-acrylamido-methyl propane sulfonic acid multipolymer is for by quality ratio: vinylformic acid: Propylene glycol monoacrylate: 2-acrylamido-methyl propane sulfonic acid is 4: 0.5: 1.9, and vinylformic acid, Propylene glycol monoacrylate, 2-acrylamido and the methyl propane sulfonic acid that adopts said ratio is polymerization under 80 ℃ the condition in temperature of reaction.
In the technique scheme, described imidazolidine derivatives inhibiter is outsourcing, but when outsourcing, must satisfy following quality index:
| Project | Index |
| Active matter content | 98％ |
| Corrosion inhibition rate | 98％ |
| 20 ℃ of density | 1.1g/cm3 |
| Flash-point | 95℃ |
| Condensation point | -15℃ |
| Solvability | Arbitrary proportion is water-soluble |
Above-mentioned vinylformic acid-propenoate-2-acrylamido-methyl propane sulfonic acid multiple copolymer must satisfy quality index:
| The index project | The internal control value |
| Density (20 ℃) g/ml | 1.130 |
| PH (the 10g/l aqueous solution) | 4.0 |
| Solids content % | 33.0 |
| Free monomer (in CH2=CH-COOH) content % | 0.1 |
Aforesaid buck dirt dispersion agent, it is applicable in the Inferior of Texaco Gasification Technology grey water handing.
Claims (4)
1. buck dirt dispersion agent is characterized in that: by weight percentage, the multiple copolymer by 60～65%, 5～10% inhibiter, 7～10% phosphonate and 15～20% water make;
Described multiple copolymer is selected for use: vinylformic acid-propenoate-2-acrylamido-methyl propane sulfonic acid multipolymer;
Described inhibiter is selected for use: imidazolidine derivatives;
Described phosphonate is selected for use: HEDP salt.
2. buck dirt dispersion agent according to claim 1 is characterized in that: described vinylformic acid-propenoate-2-acrylamido-methyl propane sulfonic acid multipolymer is for by quality ratio:
Vinylformic acid: propenoate: 2-acrylamido-methyl propane sulfonic acid is 4: 0.5: 1.8～2.0;
Vinylformic acid, propenoate, the 2-acrylamido-methyl propane sulfonic acid that adopts said ratio is polymerization under 79～81 ℃ the condition in temperature of reaction.
3. according to claim 1 or 2 each described buck dirt dispersion agents, it is characterized in that: described propenoate is a Propylene glycol monoacrylate.
4. the application of buck dirt dispersion agent as claimed in claim 1 is characterized in that: be applicable in the Inferior of Texaco Gasification Technology grey water handing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110244324 CN102320694B (en) | 2011-08-25 | 2011-08-25 | Ash water scale inhibiting and dispersing agent, and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110244324 CN102320694B (en) | 2011-08-25 | 2011-08-25 | Ash water scale inhibiting and dispersing agent, and application thereof |
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| CN102320694A true CN102320694A (en) | 2012-01-18 |
| CN102320694B CN102320694B (en) | 2013-07-03 |
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| CN 201110244324 Active CN102320694B (en) | 2011-08-25 | 2011-08-25 | Ash water scale inhibiting and dispersing agent, and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838704A (en) * | 2012-09-11 | 2012-12-26 | 湖北海力化工科技有限公司 | Dispersing agent for anti-oxidation coating for heating silicon steel plate blank and preparation method thereof |
| CN103030730A (en) * | 2012-12-28 | 2013-04-10 | 山东大学 | Preparation method of dispersing agent containing sulfo polycarboxylate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759300A (en) * | 2008-12-26 | 2010-06-30 | 上海淼清水处理有限公司 | Composite scale and corrosion inhibitor |
| CN101913712A (en) * | 2009-07-22 | 2010-12-15 | 乌鲁木齐市科发展精细化工有限公司 | Low-phosphorous environment-friendly scale inhibitor adapting to 'three-high' water quality and preparation thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759300A (en) * | 2008-12-26 | 2010-06-30 | 上海淼清水处理有限公司 | Composite scale and corrosion inhibitor |
| CN101913712A (en) * | 2009-07-22 | 2010-12-15 | 乌鲁木齐市科发展精细化工有限公司 | Low-phosphorous environment-friendly scale inhibitor adapting to 'three-high' water quality and preparation thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 20100115 孙亮 AA-HPA-AMPS的制备与阻垢性能研究 第14-16页 1-4 , * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838704A (en) * | 2012-09-11 | 2012-12-26 | 湖北海力化工科技有限公司 | Dispersing agent for anti-oxidation coating for heating silicon steel plate blank and preparation method thereof |
| CN102838704B (en) * | 2012-09-11 | 2014-10-08 | 湖北海力化工科技有限公司 | Dispersing agent for anti-oxidation coating for heating silicon steel plate blank and preparation method thereof |
| CN103030730A (en) * | 2012-12-28 | 2013-04-10 | 山东大学 | Preparation method of dispersing agent containing sulfo polycarboxylate |
| CN103030730B (en) * | 2012-12-28 | 2015-04-22 | 山东大学 | Preparation method of dispersing agent containing sulfo polycarboxylate |
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| CN102320694B (en) | 2013-07-03 |
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