CN103551022B - A kind of catalytic oxidation type flue gas circulating fluidized bed desulfurization synergisting method - Google Patents
A kind of catalytic oxidation type flue gas circulating fluidized bed desulfurization synergisting method Download PDFInfo
- Publication number
- CN103551022B CN103551022B CN201310528822.2A CN201310528822A CN103551022B CN 103551022 B CN103551022 B CN 103551022B CN 201310528822 A CN201310528822 A CN 201310528822A CN 103551022 B CN103551022 B CN 103551022B
- Authority
- CN
- China
- Prior art keywords
- water
- spray
- fluidized bed
- desulfurization
- flue gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The present invention is a kind of catalytic oxidation type flue gas circulating fluidized bed desulfurization synergisting method, spray in desulfurizing tower body together with after water absorbing agent is mixed with shower water, spray in desulfurizing tower body together with after it is mixed with shower water with the water absorbing agent that weight/mass percentage composition is 1.2%-1.23% of desulfurizing agent；Be the surfactant of 0.03%-0.032%, mass concentration by the quality proportioning with water it is the catalyst of 0.95g/L-1g/L, at least sprays into tower body at diverse location at twice when solution total amount is constant；Oxidant being first dissolved in water individually spray into from desulfurizing tower top, its quality proportioning with water is 2.5%-2.8%, and injection flow rate should be the 20%-30% of water spray total amount.It is an advantage of the invention that material be easy to get, low price, preparation technology simple, desulfuration efficiency can be effectively improved, and environment do not resulted in secondary pollution.
Description
Technical field
The present invention relates to a kind of catalytic oxidation type flue gas circulating fluidized bed desulfurization synergisting method, the method is mainly used in improving the desulfuration efficiency of circulating fluidized bed desulfurization tower.
Background technology
China is the big country of a production of energy and consumption, and its energy-output ratio occupies the second in the world, and in the structure of energy resource consumption, coal resources occupy maximum ratio.Add up according to coal industry association: coal in China yield 35.2 hundred million tons in 2011, account for total output of primary energy 78.6%；Consumption of coal total amount 35.7 hundred million tons, accounts for primary energy total quantity consumed 72.8%.China's richness coal, oil starvation, the less resource situation of gas determine within period longer from now on, and coal resources are still the main energy sources of China.The primary energy consumption industry of China, especially power industry is still based on coal unit.And the atmosphere polluting problem produced by fire coal, especially SO2Emission problem also will affect for a long time China development.
The research of desulfurization technology has had more than 90 year, and desulfurization technology has hundreds of, and these desulfurization technology can be divided three classes by process characteristic, it may be assumed that desulfurization after desulfurization in desulfurization before burning, burning, burning.After burning, desulfurization and flue gas desulfurization are to control SO at present2The desulfurization technology most effective, most widely used of discharge.By absorbent and desulfurization product, the dry and wet state in sweetening process can be divided into: wet method, dry method and semidry method.Common Wet Flue Gas Desulfurization Technology has: limestone/lime-gypsum method, sodium sulfite absorption cycle, magnesium oxide and sea water desulfuration etc..Wet Flue Gas Desulfurization Technology comparative maturity, occupies leading position in numerous desulfurization technology, but wet process of FGD exists initial investment greatly, and system complex, floor space is big, and energy consumption is high, and equipment corrosion is serious, and pipeline easily blocks, and waste water is difficult to the problems such as process.The shortcomings such as it is low that desulfurization by dry method exists sorbent utilization, and desulfuration efficiency is low.
Therefore, semi-dry desulphurization technology is as the Some features having dry method and wet method concurrently, particularly under wet condition, desulfurization processes desulfurization product under dry state, and soon and dry method is discharged without wastewater and waste acid, the easy-to-handle benefit of desulfurization afterproduct to have wet desulphurization response speed concurrently, and increasingly get more and more people's extensive concerning.Although, semi-dry desulphurization has plurality of advantages, but its desulfuration efficiency is lower than wet method, and sorbent utilization have impact on its extensive use also below wet desulphurization.Along with the improvement circulating fluidized bed desulfurization tower semi-dry desulphurization of technology can recycle desulfurizing agent, improve the utilization rate of desulfurizing agent, but the efficiency in distance people's ideal still has a segment distance, so people remain a need for a kind of material be easy to get, low price, preparation technology simple, environment is not resulted in the Desulfurization synergist of secondary pollution to improve desulfuration efficiency.
Summary of the invention
The present invention be to provide for a kind of material be easy to get, low price, preparation technology simple, environment is not resulted in the desulfurization synergistic method of secondary pollution.
The above-mentioned purpose of the present invention is achieved through the following technical solutions:
The catalytic oxidation type circulating fluid bed semi-drying method Desulfurization synergist of the present invention, it includes following component: weight/mass percentage composition is 1.2%-1.23% water absorbing agent, weight/mass percentage composition is 0.03%-0.032% surfactant, mass concentration is about the catalyst of 0.95g/L-1g/L, and weight/mass percentage composition is 2.5%-2.8% oxidant.
Described water absorbing agent is calcium chloride, and surfactant is sodium alkyl benzene sulfonate, and catalyst is 1,3-propanedicarboxylic acid.
Described oxidant is hydrogen peroxide.
The preparation method of described catalytic oxidation type circulating fluidized bed desulfurization tower Desulfurization synergist, preparation process is:
(1) the CaCl used in preparation process2, spray in desulfurizing tower body together with after should mixing with shower water, its quality proportioning with desulfurizing agent is 1.2%-1.23%.
(2) the surfactant used in preparation process and catalyst, should be first dissolved in water, and its quality proportioning surfactant with water is 0.03%-0.032%, and catalyst quality concentration is about 0.95g/L-1g/L.
(3) the oxidant used in preparation process, should be first dissolved in water and individually spray into from desulfurizing tower top, and its quality proportioning with water is 2.5%-2.8%.
The using method of described catalytic oxidation type circulating fluidized bed desulfurization tower Desulfurization synergist:
(1) the CaCl in use used2It is as after water absorbing agent and shower water Homogeneous phase mixing in proportion, sprays into together in desulfurizing tower.
(2) the surfactant in use used and catalyst at least spray into tower body at diverse location at twice when solution total amount is constant after being dissolved in water.
(3) the oxidant in use used, sprays at tower top after being dissolved in water, and injection flow rate herein should be the 20%-30% of water spray total amount (including tower top injection flow rate).
In the present invention, calcium chloride sprays in desulfurizing tower as water absorbing agent, and calcium chloride has good moisture-absorption water-retention, the maintenance of desulfurizing agent long period can be made to moisten, increase the liquid phase response time in desulfurizing tower.Sodium alkyl benzene sulfonate can reduce the surface tension of water, makes sulfur dioxide be easier to soluble in water and reactive desulfurizing agent.1,3-propanedicarboxylic acid can reduce the H of liquid-vapor interface+, increase the H of liquid-solid interface+, promoted SO2With Ca (OH)2Dissolving.Hydrogen peroxide can by SO as oxidant3-It is oxidized to SO4-Reduce desulfurization product and promote that the forward of desulphurization reaction carries out.
Beneficial effect
1, catalytic oxidation type desulfurization synergistic agent material of the present invention be easy to get, low price, preparation technology simple, environment is not resulted in secondary pollution, circulating fluidized bed desulfurization tower desulfuration efficiency can be improved preferably.
2, the Desulfurization synergist prepared is joined in desulfurizing tower by using method, it is possible to promote that sulfur dioxide dissolves with slaked lime, and the forward of reaction carries out, thus improving desulfuration efficiency.Circulating fluidized bed desulfurization tower desulfuration efficiency when Ca/S is 1.1-1.4 is about 90%, and after adding this Desulfurization synergist, desulfuration efficiency can reach more than 99%.
3, the desulfurizing agent of preparation has good performance.Equipment is not resulted in corrosion by material used, except playing the function of oneself, does not react with other material, desulfurizing tower will not be caused unnecessary harm.
Claims (2)
1. a catalytic oxidation type flue gas circulating fluidized bed desulfurization synergisting method, it is characterised in that: step is:
(1) spraying in desulfurizing tower body together with after water absorbing agent and shower water being mixed, its mass percent with desulfurizing agent is 1.2%-1.23%；
(2) surfactant and catalyst are first dissolved in water, its quality proportioning surfactant with water is 0.03%-0.032%, catalyst quality concentration is 0.95g/L-1g/L, at least sprays into tower body at diverse location at twice when solution total amount is constant；
(3) oxidant being first dissolved in water individually to spray into from desulfurizing tower top, its quality proportioning with water is 2.5%-2.8%, and injection flow rate should be the 20%-30% of water spray total amount.
2. a kind of catalytic oxidation type flue gas circulating fluidized bed desulfurization synergisting method according to claim 1, it is characterised in that: described water absorbing agent is CaCl2, surfactant is sodium alkyl benzene sulfonate, and catalyst is 1,3-propanedicarboxylic acid, and described oxidant is hydrogen peroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310528822.2A CN103551022B (en) | 2013-10-23 | 2013-10-23 | A kind of catalytic oxidation type flue gas circulating fluidized bed desulfurization synergisting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310528822.2A CN103551022B (en) | 2013-10-23 | 2013-10-23 | A kind of catalytic oxidation type flue gas circulating fluidized bed desulfurization synergisting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103551022A CN103551022A (en) | 2014-02-05 |
| CN103551022B true CN103551022B (en) | 2016-07-06 |
Family
ID=50005484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310528822.2A Expired - Fee Related CN103551022B (en) | 2013-10-23 | 2013-10-23 | A kind of catalytic oxidation type flue gas circulating fluidized bed desulfurization synergisting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103551022B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645816A (en) * | 2015-01-28 | 2015-05-27 | 上海水平衡环境科技发展有限公司 | Wet desulphurization synergist |
| CN105777634B (en) * | 2016-04-27 | 2018-02-16 | 广西师范大学 | A kind of method for synthesizing the aryl ketone class compound of isoquinolin 1 |
| CN112090250B (en) * | 2020-08-13 | 2022-12-30 | 中冶华天工程技术有限公司 | On-line slow-release oxidation type flue gas circulating fluidized bed desulfurization method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1820822A (en) * | 2006-01-25 | 2006-08-23 | 北京朗新明环保科技有限公司 | Method for reinforcing lime stone slurry activity in smoke desulfurizing process and combined additive |
| CN101721884A (en) * | 2009-12-10 | 2010-06-09 | 攀枝花新钢钒股份有限公司 | Smoke desulphurization agent and smoke desulphurization method |
| CN101869824A (en) * | 2009-04-21 | 2010-10-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Flue gas desulfurizing agent and flue gas desulfurization method |
| 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 |
| CN102847428A (en) * | 2011-07-01 | 2013-01-02 | 湖南晟通科技集团有限公司 | Limestone-gypsum wet desulfurization additive |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101977842A (en) * | 2009-03-02 | 2011-02-16 | 卡勒拉公司 | Gas stream multi-pollutants control systems and methods |
-
2013
- 2013-10-23 CN CN201310528822.2A patent/CN103551022B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1820822A (en) * | 2006-01-25 | 2006-08-23 | 北京朗新明环保科技有限公司 | Method for reinforcing lime stone slurry activity in smoke desulfurizing process and combined additive |
| CN101869824A (en) * | 2009-04-21 | 2010-10-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Flue gas desulfurizing agent and flue gas desulfurization method |
| CN101721884A (en) * | 2009-12-10 | 2010-06-09 | 攀枝花新钢钒股份有限公司 | Smoke desulphurization agent and smoke desulphurization method |
| CN102847428A (en) * | 2011-07-01 | 2013-01-02 | 湖南晟通科技集团有限公司 | Limestone-gypsum wet desulfurization additive |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103551022A (en) | 2014-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102101011B (en) | Wet desulphurization method for coal-fired power plant and additive used by same | |
| CN102019138B (en) | Multifunctional composite additive for wet-method flue gas desulfuration process and using method thereof | |
| CN103301749B (en) | The method of flue gas and desulfurizing and denitrifying | |
| CN101934192B (en) | Double-tower ammonia-method desulfurization process | |
| CN203750390U (en) | Calcium and chlorine dioxide-based three-section flue gas simultaneous desulfurization and denitration system | |
| US11090608B2 (en) | System and method for desulfurization and denitrification of alumina calcination flue gas, and use | |
| CN102580514A (en) | Additive for strengthening wet flue gas desulfurization technology | |
| CN103721556A (en) | Desulfurization, denitrification and demercuration additive as well as preparation method thereof | |
| WO2013082856A1 (en) | Wet limestone flue gas desulfurization slurry stabilizer and method of using same | |
| CN104190241A (en) | Energy-saving and efficiency-improving composite reagent for limestone gypsum desulfurization | |
| CN104001412B (en) | Fume desulfurizing agent and fume desulphurization method thereof | |
| CN102068888A (en) | Method for simultaneously desulfurizing and denitrating flue gas by wet method | |
| CN101347706A (en) | Flue gas desulfurization technique using dual alkali method with acetylene sludge as recycling agent | |
| CN102350208A (en) | Flue gas absorbent which simultaneously has functions of desulphurization and denitration and preparation method and application thereof | |
| CN103551022B (en) | A kind of catalytic oxidation type flue gas circulating fluidized bed desulfurization synergisting method | |
| CN103191638B (en) | A kind of desulfurizing tower filler for sea water desulfuration and preparation method | |
| CN104645816A (en) | Wet desulphurization synergist | |
| CN105664707A (en) | Additive for desulfurization, denitrification and mercury removal of flue gas of thermal power plant and preparation method and application of additive | |
| CN103537183B (en) | A kind of method of preparation and use of the type flue gas circulating fluidized bed desulfurization synergist that is humidified | |
| CN205914022U (en) | Processing system is united to coal fired power plant flue gas sulfur trioxide and desulfurization waste water | |
| CN102728215B (en) | Composition and method for removing nitrogen oxides in desulfurizing tower | |
| CN101653691A (en) | Mixed solution for simultaneously desulfurizing and denitrating and application method thereof | |
| CN101791513A (en) | Jacking-type exhaust-gas treatment device and method | |
| CN103752162A (en) | Flue gas desulfurization synergist | |
| CN101549254A (en) | Jacking flue gas processing device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20191023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |