CN102041131B - High-temperature sulfur solidifying agent for desulfurization in coal blending burner - Google Patents
High-temperature sulfur solidifying agent for desulfurization in coal blending burner Download PDFInfo
- Publication number
- CN102041131B CN102041131B CN 201110023814 CN201110023814A CN102041131B CN 102041131 B CN102041131 B CN 102041131B CN 201110023814 CN201110023814 CN 201110023814 CN 201110023814 A CN201110023814 A CN 201110023814A CN 102041131 B CN102041131 B CN 102041131B
- Authority
- CN
- China
- Prior art keywords
- coal
- desulfurization
- solidifying agent
- oxide
- boiler
- 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
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses a high-temperature sulfur solidifying agent for desulfurization in a coal blending burner, relating to a sulfur solidifying agent for reducing emission of SO2 of fire coal. The high-temperature sulfur solidifying agent comprises the following raw materials in percentage by weight: 38-42% of calcium oxide, 9-12% of silicon dioxide, 3-5% of sodium carbonate, 6-8% of magnesium oxide, 7-9% of iron sesquioxide, 11-13% of aluminium oxide, 4-5% of titanium dioxide, 2-3% of sodium lignin sulfonate, 2-3% of potassium oxide, 3-5% of vanadium pentoxide and 4-6% of silicon carbide. By utilizing the high-temperature sulfur solidifying agent, the desulfurization efficiency is greatly improved, 80% of SO2 of the fire coal can be solidified, the load of flue gas desulfurization at the later stage is greatly reduced; after desulfurization, a boiler leads the discharged powdery coal ash and slag at the bottom of the boiler are ground into cement fineness so as to lead the compression strength to reach more than 16.0Mpa for 28 days, the burning of the fire coal is fuller, the residual carbon amount of the discharged powdery coal ash is reduced, the heat efficiency of the boiler is improved, and simultaneously the coking problem brought by the fire coal of the coal firing boiler is solved.
Description
Technical field
The present invention relates to the coal-fired SO of a kind of minimizing
2The sweetening agent of discharging, specifically a kind of high-temperature sulfur solidifying agent for desulfurization in coal blending burner.
Background technology
Environment protection is paid close attention to by the whole world day by day.China SO
2Year discharging quantity is large, and acid rain has covered area 40% left and right, how to reduce and to control SO
2Pollution become particularly urgent and important.Because China's energy structure is take coal as main, most coals are used for burning, reduce and control SO
2Pollution, will manage to reduce the SO in the coal burning process
2Quantity discharged.Desulfurization before burning in Desulfurization Technique for Coal-fired Boilers now, i.e. coal washing technology by coal washing, is removed the sulfur in fire coal, reaches the Filter Tuber For Clean Coal burning, reduces SO
2The purpose of discharging.But this coal washing technology can't remove by physical method due to particulate dispersed pyrite and organosulfur, so sweetening effectiveness is poor.The tail flue gas desulfurization, though desulfurization degree is high, the installations and facilities of its disposable input are taken, annual running cost and equipment maintenance cost too high, therefore non-general power plant can bear, and especially uses the power plant of the medium small boiler of fire coal or low grade coal, is difficult for applying.Coal mixing combustion sulphur-fixing agent desulfurization technology namely adopts the coal mixing combustion sulphur-fixing agent evenly to mix with coal-fired, enters boiler and carries out combustion desulfurization, and this desulfurization technology cost is low, drop into without installations and facilities.But existing sulphur-fixing agent sweetening effectiveness is still undesirable.
Summary of the invention
Technical problem to be solved by this invention is to provide the high high-temperature sulfur solidifying agent for desulfurization in coal blending burner of a kind of desulfuration efficiency.
the present invention solves the problems of the technologies described above the technical scheme that adopts to be: high-temperature sulfur solidifying agent for desulfurization in coal blending burner, by calcium oxide, silicon-dioxide, sodium carbonate, magnesium oxide, ferric oxide, aluminium sesquioxide, titanium dioxide, sodium lignosulfonate, potassium oxide, Vanadium Pentoxide in FLAKES and silicon carbide form, the weight percent of each raw material add-on is: calcium oxide 38-42%, silicon-dioxide 9-12%, sodium carbonate 3-5%, magnesium oxide 6-8%, ferric oxide 7-9%, aluminium sesquioxide 11-13%, titanium dioxide 4-5%, sodium lignosulfonate 2-3%, potassium oxide 2-3%, Vanadium Pentoxide in FLAKES 3-5%, silicon carbide 4-6%.
The granularity of described silicon-dioxide is 3-6 μ m.
The invention has the beneficial effects as follows: significantly improved desulfuration efficiency after using high-temperature desulfurization agent of the present invention, can be the SO of 80% in fire coal
2Be fixed up, greatly alleviate the burden of later stage flue gas desulfurization, make the SO in coal-fired flue-gas
2Concentration reaches the emission standard of national regulation.After desulfurization, boiler institute discharge coal ash, bottom slag are worn into more than 28 days ultimate compression strength of cement fineness reaches 16.0Mpa.The existence of high-temperature desulfurization agent has reduced the decomposition temperature of coal ash, and significantly reduced and decomposed the heat that absorbs, fire coal is more fully burnt, reduced the remaining carbon of institute's discharge coal ash, improve boiler thermal output, solved simultaneously the coking problem that the coal firing boiler fire coal brings.
Embodiment
High-temperature sulfur solidifying agent for desulfurization in coal blending burner, be comprised of calcium oxide, silicon-dioxide, sodium carbonate, magnesium oxide, ferric oxide, aluminium sesquioxide, titanium dioxide, sodium lignosulfonate, potassium oxide, Vanadium Pentoxide in FLAKES and silicon carbide, the weight percent of each raw material add-on is: calcium oxide 38-42%, silicon-dioxide 9-12%, sodium carbonate 3-5%, magnesium oxide 6-8%, ferric oxide 7-9%, aluminium sesquioxide 11-13%, titanium dioxide 4-5%, sodium lignosulfonate 2-3%, potassium oxide 2-3%, Vanadium Pentoxide in FLAKES 3-5%, silicon carbide 4-6%.
The granularity of described silicon-dioxide is 3-6 μ m.
The using method of high-temperature sulfur solidifying agent for desulfurization in coal blending burner of the present invention is: high-temperature desulfurization agent of the present invention adopts the desulfuration in furnace method of coal mixing combustion, high-temperature desulfurization agent of the present invention is sent into boiler with coal-fired weight ratio according to 1:4-2:3 after even the mixing burn, the larger sweetening effectiveness of the add-on of high-temperature desulfurization agent is better but cost is also higher.Oxide compound in combustion processes in sulphur-fixing agent has combustion-supporting effect to coal, and its point of ignition will significantly reduce, and improves the utilization ratio of coal, and the catalytic materials in sulphur-fixing agent has katalysis to coal, can make that coal burns in combustion processes fast and thoroughly.
Embodiment 1
The silicon carbide of getting by weight percentage 38% calcium oxide, 12% silicon-dioxide, 3% sodium carbonate, 7% magnesium oxide, 9% ferric oxide, 13% aluminium sesquioxide, 4% titanium dioxide, 2% sodium lignosulfonate, 3% potassium oxide, 5% Vanadium Pentoxide in FLAKES and 4% mixes and makes high-temperature sulfur solidifying agent for desulfurization in coal blending burner, and wherein the granularity of silicon-dioxide is 3 μ m.
After tested, on coal-fired boiler in power plant by coal: the propellant combination of the high-temperature desulfurization agent=80:20 proportioning operation 72h that burns simultaneously, wherein coal-fired sulphur content is 0.392%, thus the SO of conversion
2Quantity discharged is 43.36 Kg/h, and actual emission is 6.70 Kg/h, and desulfurization degree is 84.5%.28 days ultimate compression strength of boiler institute ash discharge slag are 16.0MPa.
Embodiment 2
The silicon carbide of getting by weight percentage 39% calcium oxide, 10% silicon-dioxide, 4% sodium carbonate, 8% magnesium oxide, 8% ferric oxide, 12% aluminium sesquioxide, 5% titanium dioxide, 3% sodium lignosulfonate, 2% potassium oxide, 4% Vanadium Pentoxide in FLAKES and 5% mixes and makes high-temperature sulfur solidifying agent for desulfurization in coal blending burner, and wherein the granularity of silicon-dioxide is 5 μ m.
After tested, on coal-fired boiler in power plant by coal: the propellant combination of the high-temperature desulfurization agent=70:30 proportioning operation 72h that burns simultaneously, wherein coal-fired sulphur content is 0.343%, thus the SO of conversion
2Quantity discharged is 45.28 Kg/h, and actual emission is 4.30 Kg/h, and desulfurization degree is 90.5%.28 days ultimate compression strength of boiler institute ash discharge slag are 16.8MPa.
Embodiment 3
The silicon carbide of getting by weight percentage 42% calcium oxide, 9% silicon-dioxide, 5% sodium carbonate, 6% magnesium oxide, 7% ferric oxide, 11% aluminium sesquioxide, 5% titanium dioxide, 3% sodium lignosulfonate, 3% potassium oxide, 3% Vanadium Pentoxide in FLAKES and 6% mixes and makes high-temperature sulfur solidifying agent for desulfurization in coal blending burner, and wherein the granularity of silicon-dioxide is 6 μ m.
After tested, on coal-fired boiler in power plant by coal: the propellant combination of the high-temperature desulfurization agent=60:40 proportioning operation 72h that burns simultaneously, wherein coal-fired sulphur content is 2.65%, thus the SO of conversion
2Quantity discharged is 381.60 Kg/h, and actual emission is 0.88 Kg/h, and desulfurization degree is 99.8%.28 days ultimate compression strength of boiler institute ash discharge slag are 18.1MPa.
This shows the SO that high-temperature desulfurization agent that component and ratio according to technical solution of the present invention make can effectively reduce when coal mixing combustion
2Quantity discharged.SiO in sulphur-fixing agent
2, Fe
2O
3, Ai
2O
3Can promote coal-fired activation products Deng element, they can be by the fracture of chemical bond, obtaining the gaseous matter of more molecular weight, thereby has reduced activation energy, has also just reduced the ignition of coal temperature, makes the more complete of coal burning.The materials such as sodium carbonate, potassium oxide, sodium lignosulfonate and Vanadium Pentoxide in FLAKES can promote SO in combustion processes
2Reaction generates CaSO
4, MgSO
4Deng material, improve the utilization ratio of reaction efficiency and calcium atom, thereby with most of SO
2Be fixed up.Also generate more stable multi-element compounds CaFe in reaction process
3(SiO
4)
2OH, 3CaO3Al
2O
3CaSO
4Cover or be wrapped in CaSO
4The outside forms vitreum state material, thereby delays and stoped CaSO
4Decomposition, improved desulfurization efficiency.After desulfurization, boiler institute discharge coal ash, bottom slag are worn into more than 28 days ultimate compression strength of cement fineness reaches 16.0Mpa, can all be converted into the high quality raw material of cement building material industry, and utility value improves.Fire coal is more fully burnt, reduced the remaining carbon of institute's discharge coal ash, improve boiler thermal output, solve simultaneously the coking problem that the coal firing boiler fire coal brings.
Claims (2)
1. high-temperature sulfur solidifying agent for desulfurization in coal blending burner, it is characterized in that: by calcium oxide, silicon-dioxide, sodium carbonate, magnesium oxide, ferric oxide, aluminium sesquioxide, titanium dioxide, sodium lignosulfonate, potassium oxide, Vanadium Pentoxide in FLAKES and silicon carbide form, the weight percent of each raw material add-on is: calcium oxide 38-42%, silicon-dioxide 9-12%, sodium carbonate 3-5%, magnesium oxide 6-8%, ferric oxide 7-9%, aluminium sesquioxide 11-13%, titanium dioxide 4-5%, sodium lignosulfonate 2-3%, potassium oxide 2-3%, Vanadium Pentoxide in FLAKES 3-5%, silicon carbide 4-6%.
2. high-temperature sulfur solidifying agent for desulfurization in coal blending burner as claimed in claim 1, it is characterized in that: the granularity of described silicon-dioxide is 3-6 μ m.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201110023814 CN102041131B (en) | 2011-01-21 | 2011-01-21 | High-temperature sulfur solidifying agent for desulfurization in coal blending burner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201110023814 CN102041131B (en) | 2011-01-21 | 2011-01-21 | High-temperature sulfur solidifying agent for desulfurization in coal blending burner |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102041131A CN102041131A (en) | 2011-05-04 |
CN102041131B true CN102041131B (en) | 2013-06-26 |
Family
ID=43907681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 201110023814 Expired - Fee Related CN102041131B (en) | 2011-01-21 | 2011-01-21 | High-temperature sulfur solidifying agent for desulfurization in coal blending burner |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN102041131B (en) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102277218A (en) * | 2011-07-08 | 2011-12-14 | 唐东波 | Inhibitor for preventing straw shaping material from coking |
CN102533390B (en) * | 2012-02-16 | 2014-06-25 | 华北电力大学 | Iron-based oxygen carrier with interlayer shell structure and capable of catalyzing direct combustion of coal, and preparation method for iron-based oxygen carrier |
CN102533391B (en) * | 2012-02-16 | 2014-06-25 | 华北电力大学 | Novel iron-based oxygen carrier with interlayer shell structure, and preparation method for novel iron-based oxygen carrier |
CN103695071A (en) * | 2013-12-19 | 2014-04-02 | 石家庄新邦尔节能技术有限公司 | Coal sulfur-fixation flame accelerator and preparation method thereof |
CN104017596B (en) * | 2014-06-17 | 2016-09-14 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of processing method of tailings in vanadium extraction |
CN105381707A (en) * | 2015-10-30 | 2016-03-09 | 广西桂晟新能源科技有限公司 | Two-step desulfurization technology of coal burning process |
CN105344233A (en) * | 2015-10-30 | 2016-02-24 | 广西桂晟新能源科技有限公司 | Two-step desulphurization method for coal-fired boiler |
CN105289753B (en) * | 2015-11-05 | 2017-12-26 | 张家界鸿燕新材料科技发展有限公司 | A kind of preparation method of sulphur capturing catalyst |
CN105251539B (en) * | 2015-11-05 | 2017-12-29 | 张家界鸿燕新材料科技发展有限公司 | A kind of sulphur capturing catalyst |
CN105505518A (en) * | 2015-11-27 | 2016-04-20 | 广西阔能霸能源科技开发有限责任公司 | Fire coal synergist containing sodium peroxycarbonate and preparation method thereof |
CN105400566A (en) * | 2015-11-27 | 2016-03-16 | 广西阔能霸能源科技开发有限责任公司 | Energy-saving synergist for briquette and preparation method for synergist |
CN105505516A (en) * | 2015-11-27 | 2016-04-20 | 广西阔能霸能源科技开发有限责任公司 | Fire coal synergist containing 75% ferrosilicon powder and preparation method thereof |
CN105400565A (en) * | 2015-11-27 | 2016-03-16 | 广西阔能霸能源科技开发有限责任公司 | Environment-friendly coal combustion synergist and preparation method thereof |
CN105779076B (en) * | 2016-04-19 | 2018-09-11 | 哈尔滨工业大学 | A kind of preparation method of efficient fuel coal desulfurizing agent |
CN105950256A (en) * | 2016-05-31 | 2016-09-21 | 无锡锡能锅炉有限公司 | Energy conservation and emission reduction additive for gas-fired boiler |
CN105838476A (en) * | 2016-06-22 | 2016-08-10 | 王璐 | High-temperature sulphur-fixing agent |
CN105838475A (en) * | 2016-06-22 | 2016-08-10 | 王璐 | Compound sulfur fixing agent |
CN105907443A (en) * | 2016-06-22 | 2016-08-31 | 王璐 | Fuel-coal sulfur fixing agent |
CN105950258A (en) * | 2016-06-22 | 2016-09-21 | 王璐 | Nano sulfur-fixing agent |
CN105907442A (en) * | 2016-06-22 | 2016-08-31 | 王璐 | Novel sulphur-fixing agent |
CN107062277A (en) * | 2017-02-15 | 2017-08-18 | 上海浦东路桥建设股份有限公司 | Improve method and medicament that biomass boiler stains corrosion |
CN106925114A (en) * | 2017-03-14 | 2017-07-07 | 湖南云平环保科技有限公司 | Desulfuration in furnace agent and preparation method thereof |
CN107099355A (en) * | 2017-04-21 | 2017-08-29 | 雷笑天 | A kind of preparation method of coal sulphur-fixing agent |
CN107057796A (en) * | 2017-06-09 | 2017-08-18 | 太原理工大学 | A kind of high-temperature fixed sulfur additive and its preparation method and application |
CN112029553A (en) * | 2020-09-01 | 2020-12-04 | 山东魏桥铝电有限公司 | Compound removal agent for sulfur, arsenic and fluorine, and preparation method and application thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4152120A (en) * | 1978-02-06 | 1979-05-01 | General Electric Company | Coal desulfurization using alkali metal or alkaline earth compounds and electromagnetic irradiation |
CN1127776A (en) * | 1995-01-28 | 1996-07-31 | 西安正阳环保能源有限公司 | Sulfur-immobilizing coal-saving additive |
CN1251858A (en) * | 1998-10-20 | 2000-05-03 | 李天文 | Sulfur-fixating (desulfurizing) additive for promoting combustion |
CN101463283A (en) * | 2008-05-31 | 2009-06-24 | 陶小勇 | Environment protection coal-saving agent for cement vertical kiln |
CN101775325A (en) * | 2009-01-14 | 2010-07-14 | 张保森 | Coal composite sulfur fixing agent |
-
2011
- 2011-01-21 CN CN 201110023814 patent/CN102041131B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4152120A (en) * | 1978-02-06 | 1979-05-01 | General Electric Company | Coal desulfurization using alkali metal or alkaline earth compounds and electromagnetic irradiation |
CN1127776A (en) * | 1995-01-28 | 1996-07-31 | 西安正阳环保能源有限公司 | Sulfur-immobilizing coal-saving additive |
CN1251858A (en) * | 1998-10-20 | 2000-05-03 | 李天文 | Sulfur-fixating (desulfurizing) additive for promoting combustion |
CN101463283A (en) * | 2008-05-31 | 2009-06-24 | 陶小勇 | Environment protection coal-saving agent for cement vertical kiln |
CN101775325A (en) * | 2009-01-14 | 2010-07-14 | 张保森 | Coal composite sulfur fixing agent |
Also Published As
Publication number | Publication date |
---|---|
CN102041131A (en) | 2011-05-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102041131B (en) | High-temperature sulfur solidifying agent for desulfurization in coal blending burner | |
CN100387693C (en) | Formulation and preparation method of desulfurization agent for assisting combustion of fire coal | |
CN101348743B (en) | Clean synergistic agent for coal-saving, devulcanizing and coke cleaning, and preparation technique thereof | |
CN102517120B (en) | Fuel coal additive | |
CN107236580B (en) | High-efficiency sulfur fixation catalytic composition for coal | |
CN105800973A (en) | Method for preparing cement from municipal solid waste incineration furnace slag | |
CN110982576B (en) | Fly ash treatment method of compatible RDF and intermediate product thereof | |
CN101269339B (en) | High-efficiency fuel coal catalyst | |
CN101531941B (en) | Coal energy-saving clean proliferating agent | |
CN101041449A (en) | Method for extracting aluminium oxide from coal ash and producing cement by using waste slag | |
CN211770962U (en) | System for preparing sulphoaluminate cement by using all solid wastes of aluminum ash pretreatment | |
CN106800959B (en) | Combustion-supporting sulfur-fixing agent for coal | |
CN101775325B (en) | Coal composite sulfur fixing agent | |
CA2926955A1 (en) | Use of spent shale or ash obtained from oil shale dismantling methods with or without additives as solid fuel | |
CN105198250A (en) | FBC (fluidized bed combustion) ash containing cement and preparation method thereof | |
CN102533387A (en) | Fire coal desulfurization and denitrification decoking additive and preparation process thereof | |
CN105199809B (en) | A kind of fire coal sulphur-fixing agent and preparation method thereof | |
CN105176618A (en) | Clean coal and production method thereof | |
CN104449943A (en) | Fire coal combustion-supporting desulfurization powder for flue gas desulfurization and preparation method thereof | |
CN107754574A (en) | Fume desulfurizing agent based on red mud and its preparation method and application | |
CN102585968B (en) | Nanometer composite coal-economizing agent for power plant boiler | |
CN102268311A (en) | Coal-burning sulfur-fixing catalytic combustion compound additive and preparation method thereof | |
CN102643705B (en) | Coal combustion-supporting hydrogel as well as preparation method and application thereof | |
CN102373105B (en) | Fire coal or inferior coal desulfurizer for sulfur fixation in circulating fluidized bed boiler | |
CN103710064B (en) | Sludge-lignite molded fuel and preparation method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20140121 |