CN103432894A - Synergist for assisting wet-process desulphurization of thermal power plant, and application method of synergist - Google Patents
Synergist for assisting wet-process desulphurization of thermal power plant, and application method of synergist Download PDFInfo
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- CN103432894A CN103432894A CN2013103920379A CN201310392037A CN103432894A CN 103432894 A CN103432894 A CN 103432894A CN 2013103920379 A CN2013103920379 A CN 2013103920379A CN 201310392037 A CN201310392037 A CN 201310392037A CN 103432894 A CN103432894 A CN 103432894A
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Abstract
The invention discloses a synergist for assisting wet-process desulphurization of a thermal power plant. The synergist comprises the following components in percentage by mass: 55%-60% of organic acid, 15%-20% of organic acid salt, 10%-15% of oxidized catalyst, and 10%-15% of chelating dispersing agent. The acidity of the organic acid is stronger than that of carbonic acid and weaker than that of sulphurous acid, and the organic acid salt is used for providing organic acid groups. The synergist can reduce the surface tension between gas and liquid and improve the dispersion speed of gas to liquid; the concentration of calcium ions in the liquid solution can be increased, the crystallization speed of sulfate ions can be accelerated, and the desulfurization efficiency of the system and the utilization rate of lime stone can be improved; in addition, the characteristics of calcium sulfate crystals can be changed, so that muddy crystals can be produced, the crystals can be prevented from being deposited at parts, such as a spray nozzle.
Description
Technical field
The present invention relates to the Wet Flue Gas Desulfurization Technique field, particularly relate to a kind of synergist and using method thereof for auxiliary heat-engine plant wet desulfurization.
Background technology
Along with social development, power industry has entered swift and violent developing period, the coal-fired flue-gas discharge of thing followed thermal power plant is day by day serious to the pollution of environment, reducing and control the pollution of the coal-fired SO2 in thermal power plant to air, is current China Air Pollution Control top priority urgently to be resolved hurrily.The wet desulfurization of flue gas by limestone-gypsum method technology adaptability good to coal with it, superior desulfuration efficiency and reliably operational system be widely used in numerous thermal power plants.
In recent years, because the variation of ature of coal on coal market is too large, cause a lot of thermal power plants to enter stove coal sulfur content far beyond design load, make the long-term overload operation of desulphurization system, cause desulfurization degree to decline to a great extent, cause SO2 discharge beyond standards in flue gas, significantly improve because the long-term overload operation of desulphurization system also makes station service power consumption rate simultaneously.The problem existed for above current desulphurization system is research direction, research is under the prerequisite to former desulphurization plant capacity-increasing transformation not, develop a kind of for assisting thermal power plant to improve the boundary condition that lime stone slurry reacts with SO2, strengthen its sweetening process, promote desulfuration efficiency, expand the adaptive capacity that desulphurization system changes coal-fired sulfur-bearing, reduce energy consumption, guarantee the smoke SO 2 qualified discharge and greatly reduce the examination of desulfurization electricity price and the synergist of the risk that environmental protection is punished becomes the focus of current research.
Summary of the invention
The objective of the invention is for the technological deficiency existed in prior art, and a kind of synergist and using method thereof for auxiliary heat-engine plant wet desulfurization is provided.
For realizing that the technical scheme that purpose of the present invention adopts is:
A kind of synergist for auxiliary heat-engine plant wet desulfurization, be comprised of following component and mass percent thereof: organic acid 55%-60%, acylate 15%-20%, oxidation catalyst 10%-15%, chelated dispersants 10%-15%.Described organic acid acidity is better than carbonic acid, is weaker than sulfurous acid, and described acylate is in order to provide organic acid.
Described organic acid is one or more in citric acid, adipic acid, succinic acid, fumaric acid, benzoic acid.
Described acylate is one or more in sodium formate, Sodium Benzoate, natrium citricum, adipic acid sodium.
Described oxidation catalyst is a kind of in manganese chloride, manganese sulfate, manganese dioxide, vanadium oxide or any two.
Described chelated dispersants is one or more in ATMP, HEDP, EDTA.
A kind of using method of synergist as claimed in claim 1, fully grind rear mixing by each component of described synergist, then adds in the lime stone slurry of desulphurization system, and addition is every liter of lime stone slurry of 500-700mg/L.
Compared with prior art, the invention has the beneficial effects as follows:
The effect that synergist of the present invention can play in the wet desulfurization of flue gas by limestone-gypsum method technical process has:
1, reduce the surface tension between solution-air, improve gas to the liquid diffusion velocity;
2, improve the calcium ion concentration in liquid solution, accelerate the crystallization rate of sulfate ion, improve the desulfuration efficiency of system and the utilization rate of lime stone;
3, change the characteristic of crystal of calcium sulfate body, make it generate the mud crystallization, prevent that crystalline solid from depositing at positions such as nozzles;
4, because desulfurization major control step at SO
2+ H
2o=HSO
3 2-+ H
+and CaCO (1)
3=Ca+CO
3 2-(2) to be the gas-liquid two-phase interface dissolve SO2 when low pH value and absorption rate reduces, and the solid-liquid two-phase interface makes CaCO3 dissolving and the rate reduction that dissociates while being in higher pH value.After using synergist, accelerated H in reaction 1
+to the liquid internal diffusion, increased reaction 2 reaction rates, the pH value of having regulated slurries provides basic group for desulphurization reaction, makes desulfuration efficiency be improved.This product, in the desulphurization reaction process, plays the effect of similar catalyst, does not participate in the cycle chemistry reaction, and in service need carry out a small amount of supplementing.
When the active ingredient that 5, synergist of the present invention contains contacts with SO2 in flue gas at lime stone slurry, can obviously improve desulfurization chemical reaction and mass transport process condition at gas, solid, liquid three phase boundary place, promote the dissolving of agstone particle and improve reactivity, the decline of buffering plasm PH value, the reaction speed of quickening slurries and SO2.Due to the peptizaiton that synergist of the present invention has, can also slow down the fouling tendency in desulphurization system, improve system reliability of operation and stability.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The first embodiment
A kind of synergist for auxiliary heat-engine plant wet desulfurization, the quality of its component and each component is as follows: adipic acid 50kg, fumaric acid 5kg, Sodium Benzoate 10kg, sodium formate 80kg, manganese sulfate 15kg, HEDP10kg, the abundant ground and mixed of above-mentioned each component is added in the lime stone slurry of desulphurization system after evenly, and addition is every liter of lime stone slurry of 600mg/L, add synergist after desulfuration efficiency rise to 95% by 93%.
The second embodiment
A kind of synergist for auxiliary heat-engine plant wet desulfurization, the quality of its component and each component is as follows: citric acid 20kg, succinic acid 37kg, Sodium Benzoate 10kg, natrium citricum 8kg, manganese chloride 8kg, manganese dioxide 4kg, ATMP13kg, add the abundant ground and mixed of each component in the lime stone slurry of desulphurization system after evenly, addition is every liter of lime stone slurry of 550mg/L, add synergist after desulfuration efficiency rise to 96% by 94%.
The 3rd embodiment
A kind of synergist for auxiliary heat-engine plant wet desulfurization, the quality of its component and each component is as follows: benzoic acid 60kg, adipic acid sodium 18kg, vanadium oxide 12kg, EDTA6kg, HEDP4kg, add the abundant ground and mixed of above-mentioned each component in the lime stone slurry of desulphurization system after evenly, addition is every liter of lime stone slurry of 500mg/L, add synergist after desulfuration efficiency rise to 97% by 93%.
The 4th embodiment
A kind of synergist for auxiliary heat-engine plant wet desulfurization, the quality of its component and each component is as follows: adipic acid 25kg, fumaric acid 10kg, succinic acid 23kg, Sodium Benzoate 5kg, adipic acid sodium 5kg, sodium formate 5kg, manganese sulfate 5kg, manganese chloride 10kg, HEDP4kg, ATMP4kg, EDTA4kg, add the abundant ground and mixed of above-mentioned each component in the lime stone slurry of desulphurization system after evenly, addition is every liter of lime stone slurry of 700mg/L, add synergist after desulfuration efficiency rise to 97% by 95%.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. the synergist for auxiliary heat-engine plant wet desulfurization, is characterized in that: following component and mass percent thereof, consist of: organic acid 55%-60%, acylate 15%-20%, oxidation catalyst 10%-15%, chelated dispersants 10%-15%.Described organic acid acidity is better than carbonic acid, is weaker than sulfurous acid, and described acylate is in order to provide organic acid.
2. as right 1 a kind of synergist for auxiliary heat-engine plant wet desulfurization as described in requiring, it is characterized in that: described organic acid is one or more in citric acid, adipic acid, succinic acid, fumaric acid, benzoic acid.
3. as right 1 a kind of synergist for auxiliary heat-engine plant wet desulfurization as described in requiring, it is characterized in that: described acylate is one or more in sodium formate, Sodium Benzoate, natrium citricum, adipic acid sodium.
4. as right 1 a kind of synergist for auxiliary heat-engine plant wet desulfurization as described in requiring, it is characterized in that: described oxidation catalyst is a kind of in manganese chloride, manganese sulfate, manganese dioxide, vanadium oxide or any two.
5. as right 1 a kind of synergist for auxiliary heat-engine plant wet desulfurization as described in requiring, it is characterized in that: described chelated dispersants is one or more in ATMP, HEDP, EDTA.
6. the using method of a synergist as claimed in claim 1, is characterized in that, each component of described synergist is fully ground to rear mixing, then adds in the lime stone slurry of desulphurization system, and addition is every liter of lime stone slurry of 500-700mg/L.
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|---|---|---|---|
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|---|---|---|---|
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752162A (en) * | 2013-12-25 | 2014-04-30 | 山东杰玛环保工程有限公司 | Flue gas desulfurization synergist |
| CN103949287A (en) * | 2014-02-11 | 2014-07-30 | 党晓军 | Magnesium base flue gas wet desulfurization catalyst |
| CN107362676A (en) * | 2017-07-27 | 2017-11-21 | 神华集团有限责任公司 | Desulfurization synergist and its application |
| CN108905547A (en) * | 2018-06-29 | 2018-11-30 | 南通乐尔环保科技有限公司 | A kind of deep purifying Desulfurization synergist |
| CN113413758A (en) * | 2021-08-02 | 2021-09-21 | 莱优环保科技(深圳)有限公司 | Desulfurization additive and preparation method thereof |
| CN114788987A (en) * | 2021-05-26 | 2022-07-26 | 上海未来企业股份有限公司 | Synergist with high desulfurization efficiency and obvious energy-saving effect and preparation method thereof |
| CN116808814A (en) * | 2023-06-13 | 2023-09-29 | 北京联发迈通科技有限公司 | Efficient composite desulfurization synergist and preparation process thereof |
| CN117717886A (en) * | 2023-12-14 | 2024-03-19 | 滨州中科催化技术有限公司 | Novel limestone-gypsum wet flue gas desulfurization additive and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145252A (en) * | 2011-01-31 | 2011-08-10 | 浙江润丰能源工程有限公司 | Synergist for limestone-gypsum wet flue gas desulfurization |
| CN102380301A (en) * | 2011-08-15 | 2012-03-21 | 西安热工研究院有限公司 | Limestone-plaster wet method flue gas desulfurization composite synergistic agent |
| CN102580514A (en) * | 2012-02-29 | 2012-07-18 | 济宁新格瑞水处理有限公司 | Additive for strengthening wet flue gas desulfurization technology |
| CN102974209A (en) * | 2012-07-13 | 2013-03-20 | 湖北海力化工科技有限公司 | Desulfurization synergist having scale inhibition performance, and preparation method thereof |
-
2013
- 2013-08-30 CN CN2013103920379A patent/CN103432894A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145252A (en) * | 2011-01-31 | 2011-08-10 | 浙江润丰能源工程有限公司 | Synergist for limestone-gypsum wet flue gas desulfurization |
| CN102380301A (en) * | 2011-08-15 | 2012-03-21 | 西安热工研究院有限公司 | Limestone-plaster wet method flue gas desulfurization composite synergistic agent |
| CN102580514A (en) * | 2012-02-29 | 2012-07-18 | 济宁新格瑞水处理有限公司 | Additive for strengthening wet flue gas desulfurization technology |
| CN102974209A (en) * | 2012-07-13 | 2013-03-20 | 湖北海力化工科技有限公司 | Desulfurization synergist having scale inhibition performance, and preparation method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752162A (en) * | 2013-12-25 | 2014-04-30 | 山东杰玛环保工程有限公司 | Flue gas desulfurization synergist |
| CN103949287A (en) * | 2014-02-11 | 2014-07-30 | 党晓军 | Magnesium base flue gas wet desulfurization catalyst |
| CN107362676A (en) * | 2017-07-27 | 2017-11-21 | 神华集团有限责任公司 | Desulfurization synergist and its application |
| CN108905547A (en) * | 2018-06-29 | 2018-11-30 | 南通乐尔环保科技有限公司 | A kind of deep purifying Desulfurization synergist |
| CN114788987A (en) * | 2021-05-26 | 2022-07-26 | 上海未来企业股份有限公司 | Synergist with high desulfurization efficiency and obvious energy-saving effect and preparation method thereof |
| CN114788987B (en) * | 2021-05-26 | 2023-11-10 | 上海未来企业股份有限公司 | Synergist with high desulfurization efficiency and obvious energy-saving effect and preparation method thereof |
| CN113413758A (en) * | 2021-08-02 | 2021-09-21 | 莱优环保科技(深圳)有限公司 | Desulfurization additive and preparation method thereof |
| CN116808814A (en) * | 2023-06-13 | 2023-09-29 | 北京联发迈通科技有限公司 | Efficient composite desulfurization synergist and preparation process thereof |
| CN117717886A (en) * | 2023-12-14 | 2024-03-19 | 滨州中科催化技术有限公司 | Novel limestone-gypsum wet flue gas desulfurization additive and preparation method thereof |
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Application publication date: 20131211 |