CN103537183B - A kind of method of preparation and use of the type flue gas circulating fluidized bed desulfurization synergist that is humidified - Google Patents
A kind of method of preparation and use of the type flue gas circulating fluidized bed desulfurization synergist that is humidified Download PDFInfo
- Publication number
- CN103537183B CN103537183B CN201310528824.1A CN201310528824A CN103537183B CN 103537183 B CN103537183 B CN 103537183B CN 201310528824 A CN201310528824 A CN 201310528824A CN 103537183 B CN103537183 B CN 103537183B
- Authority
- CN
- China
- Prior art keywords
- desulfurization
- fluidized bed
- circulating fluidized
- flue gas
- water
- 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
Landscapes
- Treating Waste Gases (AREA)
Abstract
The present invention is the method for preparation and use of a kind of type flue gas circulating fluidized bed desulfurization synergist that is humidified, its composition includes: weight/mass percentage composition is the hygroscopic agent (with the percentage ratio of desulfurizing agent) of 1.25% 1.33%, and weight/mass percentage composition is 0.028% 0.031% surfactants.It is an advantage of the invention that material be easy to get, low price, preparation technology simple, environment is not resulted in secondary pollution.The Desulfurization synergist prepared is joined in desulfurizing tower by using method, it is possible to the surface tension reducing solvent promotes the dissolving of sulfur dioxide, and increase time of contact of solid, liquid, gas three-phase thus improve desulfuration efficiency.
Description
Technical field
The present invention relates to the method for preparation and use of a kind of type flue gas circulating fluidized bed desulfurization synergist that is humidified, this synergist is mainly used in carrying
The desulfuration efficiency of high circulating fluidized bed desulfurization tower.
Background technology
China is a production of energy and the big country of consumption, and its energy-output ratio occupies the second in the world, and in the structure of energy resource consumption,
Coal resources occupy the ratio of maximum.Add up according to coal industry association: coal in China yield 35.2 hundred million tons in 2011, account for once
Production of energy total amount 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 resource situation of few gas determines within the longest period, and coal resources are still the main energy sources of China.The primary energy of China disappears
Consumption industry, especially power industry is still based on coal unit.And the discharge of the atmosphere polluting problem produced by fire coal, especially SO2
Problem also will affect China's development for a long time.
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,
That is: burning before desulfurization, burning in desulfurization and burning after desulfurization.
Wherein after burning, desulfurization i.e. flue gas desulfurization is the desulfurization technology most effective, most widely used controlling SO2 discharge at present.By absorbing
Agent and the desulfurization product dry and wet state in sweetening process can be divided into: wet method, dry method and semidry method.Common Wet Flue Gas Desulfurization Technology
Have: limestone/lime-gypsum method, sodium sulfite absorption cycle, magnesium oxide and sea water desulfuration etc..Wet Flue Gas Desulfurization Technology compares
Maturation, occupies leading position in numerous desulfurization technology, but wet process of FGD exists initial investment greatly, and system complex is taken up an area
Area 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.There is desulfurizing agent in desulfurization by dry method
The shortcomings such as utilization rate is low, and desulfuration efficiency is low.
Therefore, semi-dry desulphurization technology is as having the Some features of dry method and wet method concurrently, and particularly desulfurization under wet condition, in dry state
Lower process desulfurization product, and soon and dry method is discharged without wastewater and waste acid, desulfurization afterproduct is easy-to-handle to have wet desulphurization response speed concurrently
Benefit, and increasingly get more and more people's extensive concerning.Although, semi-dry desulphurization has plurality of advantages, but its desulfuration efficiency is than wet method
The low extensive application that have impact on it.Therefore people remain a need for a kind of material be easy to get, low price, preparation technology simple, will not to environment
Cause 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 secondary pollution and takes off
Sulfur synergist.
The above-mentioned purpose of the present invention is achieved through the following technical solutions:
The humidification type circulating fluidized bed desulfurization tower Desulfurization synergist of the present invention, it includes following component: weight/mass percentage composition is 1.25%-1.3%
Hygroscopic agent (percentage ratio in desulfurization product), weight/mass percentage composition is the raw agent alive of 0.028%-0.031% surface.
Described hygroscopic agent is magnesium chloride.
Described surfactant is sodium alkyl benzene sulfonate.
The preparation method of described humidification type circulating fluidized bed desulfurization tower Desulfurization synergist, preparation process is:
(1) hygroscopic agent used in preparation process, should mix respectively with desulfurizing agent and shower water, and mixing rear portion is together with desulfurizing agent
Accounting for magnesium chloride sum-rate in entering desulfurizing tower is 2/3, and another part accounts for magnesium chloride sum-rate and is in spraying into desulfurizing tower together with shower water
1/3, it is 1.25%-1.3% with the mass percent of desulfurization product.
(2) surfactant used in preparation process, should be first dissolved in shower water, and it is 0.028%-0.031% with the quality proportioning of water.
The using method of described humidification type circulating fluidized bed desulfurization tower Desulfurization synergist:
(1) MgCl in use used2After the most uniformly mixing with desulfurizing agent primarily as water absorbing agent, spray into desulfurization together
In tower.
(2) after the surfactant in use used and catalyst are dissolved in water, in the case of solution total amount is constant the most at twice
Tower body is sprayed at diverse location.
In the present invention, magnesium chloride is preferable hygroscopic inorganic salts, has preferable moisture-absorption water-retention, can make desulfurization in desulfurizing tower
The holding of agent long period moistens, and reduces gas-solid phase reaction.Sodium alkyl benzene sulfonate can reduce the surface tension of water, makes sulfur dioxide more
It is readily soluble in water and reactive desulfurizing agent.
Beneficial effect
1, humidification type circulating fluidized bed desulfurization tower desulfurization synergistic agent material of the present invention be easy to get, low price, preparation technology simple, to environment
Do not result in secondary pollution, can preferably improve circulating fluidized bed desulfurization tower desulfuration efficiency.Circulating fluidized bed desulfurization tower is 1.1-1.4 at Ca/S
Time desulfuration efficiency be about 90%, can reach between 97%-99% when adding desulfuration efficiency after this Desulfurization synergist.
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 its reaction is carried out, thus improves desulfuration efficiency.
3, the desulfurizing agent of preparation has preferable performance.Material used does not results in corrosion to equipment, in addition to playing the function of oneself,
Do not react with other materials, desulfurizing tower will not be caused unnecessary harm.
Claims (3)
1. a humidification type flue gas circulating fluidized bed desulfurization synergist, its feature includes following component: with the hygroscopic agent that weight/mass percentage composition is 1.25%-1.3% of desulfurization product, hygroscopic agent is magnesium chloride, being 0.028%-0.031% surfactant with the weight/mass percentage composition of water, surfactant is sodium alkyl benzene sulfonate.
2. right 1 requires a preparation method for described humidification type flue gas circulating fluidized bed desulfurization tower Desulfurization synergist, and preparation process is:
(1) MgCl used in preparation process2Mix respectively with shower water and desulfurizing agent, it is 2/3 that mixing rear portion accounts for magnesium chloride sum-rate in entering desulfurizing tower together with desulfurizing agent, and another part accounts for magnesium chloride sum-rate in spraying into desulfurizing tower together with shower water be 1/3, and it is 1.25%-1.3% with the mass percent of desulfurization product；
(2) surfactant used in preparation process, is first dissolved in shower water, and it is 0.028%-0.031% with the quality proportioning of water.
3. a right 1 requires the using method of described humidification type flue gas circulating fluidized bed desulfurization tower Desulfurization synergist:
(1) MgCl in use used2If after the most uniformly mixing with desulfurizing agent as water absorbing agent, add together in desulfurizing tower；
(2), after the surfactant in use used is dissolved in water, in the case of solution total amount is constant, tower body is sprayed at diverse location the most at twice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310528824.1A CN103537183B (en) | 2013-10-23 | 2013-10-23 | A kind of method of preparation and use of the type flue gas circulating fluidized bed desulfurization synergist that is humidified |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310528824.1A CN103537183B (en) | 2013-10-23 | 2013-10-23 | A kind of method of preparation and use of the type flue gas circulating fluidized bed desulfurization synergist that is humidified |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103537183A CN103537183A (en) | 2014-01-29 |
| CN103537183B true CN103537183B (en) | 2016-09-21 |
Family
ID=49961272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310528824.1A Expired - Fee Related CN103537183B (en) | 2013-10-23 | 2013-10-23 | A kind of method of preparation and use of the type flue gas circulating fluidized bed desulfurization synergist that is humidified |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103537183B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105983328A (en) * | 2015-02-06 | 2016-10-05 | 陕西安得科技实业有限公司 | Desulphurization synergist used for wet desulphurization |
| CN105498508B (en) * | 2015-12-02 | 2018-07-06 | 湖南省小尹无忌环境能源科技开发有限公司 | A kind of sulfur method equipped using dry-process rotary kiln line production system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2989363B2 (en) * | 1992-02-05 | 1999-12-13 | 三菱重工業株式会社 | Exhaust gas treatment method |
| CN102101011B (en) * | 2010-12-24 | 2013-01-23 | 华电环保系统工程有限公司 | Wet desulphurization method for coal-fired power plant and additive used by same |
-
2013
- 2013-10-23 CN CN201310528824.1A patent/CN103537183B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103537183A (en) | 2014-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102101011B (en) | Wet desulphurization method for coal-fired power plant and additive used by same | |
| CN103084050B (en) | A kind of desulfurizing agent | |
| CN103721556A (en) | Desulfurization, denitrification and demercuration additive as well as preparation method thereof | |
| CN104692689B (en) | The method and its device of the modified oxidized calcium swelling agent of coproduction after a kind of flue gas dry desulfurizing | |
| CN108176208B (en) | A kind of efficient wet denitration agent cooperating preposition oxidation technology | |
| CN104190241A (en) | Energy-saving and efficiency-improving composite reagent for limestone gypsum desulfurization | |
| CN104001412B (en) | Fume desulfurizing agent and fume desulphurization method thereof | |
| CN106731637A (en) | A kind of compound additive for lime stone gypsum wet flue gas desulfurizing | |
| CN101347706A (en) | Flue gas desulfurization technique using dual alkali method with acetylene sludge as recycling agent | |
| CN102343203A (en) | Method for purifying harmful substances in smoke produced by combustion of boiler | |
| CN110479057A (en) | A kind of method of chemical oxidation absorbing treating smoke pollutant | |
| CN103191638B (en) | A kind of desulfurizing tower filler for sea water desulfuration and preparation method | |
| CN103551022B (en) | A kind of catalytic oxidation type flue gas circulating fluidized bed desulfurization synergisting method | |
| CN103537183B (en) | A kind of method of preparation and use of the type flue gas circulating fluidized bed desulfurization synergist that is humidified | |
| CN103566750B (en) | A kind of fume desulphurization method | |
| CN108126497A (en) | Effect agent and its preparation method and application is proposed for the flue gas desulfurization of wet desulfurization system | |
| CN103861426B (en) | A kind of flue gas desulfurization and dedusting also reclaims the method for sodium sulfite | |
| CN105664707A (en) | Additive for desulfurization, denitrification and mercury removal of flue gas of thermal power plant and preparation method and application of additive | |
| CN205914022U (en) | Processing system is united to coal fired power plant flue gas sulfur trioxide and desulfurization waste water | |
| CN103386250A (en) | Dry desulphurization method | |
| CN104789286B (en) | Desulphurization denitration composite carbon is starched | |
| CN104258710A (en) | Method for removing SO2 from exhaust gas by liquid-phase catalytic oxidation | |
| CN102688680A (en) | Method for removing sulfur and nitrogen in coal-fired power plant by combining seawater | |
| CN106994292A (en) | A kind of desulfurizing agent and its application, and using the desulphurization system of the desulfurizing agent | |
| CN103908886B (en) | A kind of employing zinc oxide paste liquid sulfur method containing additive |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20191023 |