CN105289267A - Desulfurization denitration agent for fire coal and preparation method thereof - Google Patents
Desulfurization denitration agent for fire coal and preparation method thereof Download PDFInfo
- Publication number
- CN105289267A CN105289267A CN201510819840.5A CN201510819840A CN105289267A CN 105289267 A CN105289267 A CN 105289267A CN 201510819840 A CN201510819840 A CN 201510819840A CN 105289267 A CN105289267 A CN 105289267A
- Authority
- CN
- China
- Prior art keywords
- rare
- coal
- desulfurization
- fire coal
- earth tailing
- 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.)
- Granted
Links
- 239000003245 coal Substances 0.000 title claims abstract description 31
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 30
- 230000023556 desulfurization Effects 0.000 title claims abstract description 28
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 41
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 40
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000011148 porous material Substances 0.000 claims abstract description 4
- 238000005245 sintering Methods 0.000 claims abstract description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 14
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 10
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 10
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000013467 fragmentation Methods 0.000 claims description 6
- 238000006062 fragmentation reaction Methods 0.000 claims description 6
- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 claims description 5
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims description 5
- CSSYLTMKCUORDA-UHFFFAOYSA-N barium(2+);oxygen(2-) Chemical compound [O-2].[Ba+2] CSSYLTMKCUORDA-UHFFFAOYSA-N 0.000 claims description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000292 calcium oxide Substances 0.000 claims description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 5
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- 239000000395 magnesium oxide Substances 0.000 claims description 5
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 235000019738 Limestone Nutrition 0.000 abstract description 7
- 239000006028 limestone Substances 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 239000000654 additive Substances 0.000 description 7
- 230000000996 additive effect Effects 0.000 description 7
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 6
- 230000003134 recirculating effect Effects 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 3
- 150000001342 alkaline earth metals Chemical class 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052723 transition metal Inorganic materials 0.000 description 3
- 150000003624 transition metals Chemical class 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 230000003009 desulfurizing effect Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 101100399296 Mus musculus Lime1 gene Proteins 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a desulfurization denitration agent for fire coal, and belongs to the technical field of fire coal desulfurization denitration. The invention aims to provide a fire coal desulfurization denitration agent; a user can select the desulfurization denitration agent according to the physicochemical indexes of coal, in the premise of no change of the existing burning coal technology and equipment in the circulating fluidized bed boiler, and no change of the equipment and technology of the existing desulfurization system, thus achieving the desulfurization and denitration effect. The desulfurization denitration agent for fire coal includes limestone powder, also includes rare earth tailings; and the rare earth tailings accounts for 1-8 wt.% of the limestone powder. The preparation method is as below: grinding rare earth tailings by a ball mill to 200 mesh; then sintering in a muffle furnace to prepare a porous material; crushing the material by a crusher into millimeter particles; and then adding the crushed particles into limestone powder, wherein the crushed particles account for 1-8 wt.% of the limestone powder. The desulfurization denitration agent for fire coal also enhances denitration effect.
Description
Technical field
The present invention is specifically related to a kind of coal desulfurization denitrfying agent and preparation method thereof, belongs to coal desulfurization denitration technology field.
Background technology
The main energy sources of Mei Shi China, the coal the produced overwhelming majority is for direct burning.Coal-fired generation sulfur dioxide (SO2) and nitrogen oxide (N0
x) atmosphere pollution that causes and acid rain had a strong impact on the sustainable development of improvement of the ecological environment and related industry.Sulfur dioxide (S0
2) and nitrogen oxide (N0X) be two kinds of main atmosphere pollutions, to the ecosystem and health, there is great harm.The S0 of China
2and N0
xit is the first that discharge capacity occupies the whole world, and research desulphurization denitration technology is significant to control air pollution in China.Simultaneous SO_2 and NO removal technology can reach S0 in a unit process
2with the object that NOx removes simultaneously, there is unrivaled superiority.
Simultaneous SO_2 and NO removal technology refers to and uses a kind of reactant, comprises catalyst or adsorbent, by the S0 in flue gas in a process
2with the technology that NOx removes in the lump. flue gas simultaneously removing sulfuldioxide after removing sulfuldioxide and combustion while can being divided in stove combustion process by processing procedure, the simultaneous SO_2 and NO removal technology wherein in stove combustion process to have the prospect of large-scale industrial application from now on because of its low cost. and the common feature of this technical method is the S0 utilizing absorbent to remove to generate in fuel combustion process
2, by controlling the ignition temperature of boiler to reduce the generation of NOx or spray into reducing agent as ammonia, urea etc. in stove, NOx is reduced to N2.As circulating fluidized bed technique (CFB) burner hearth lime (stone)/urea-spray technology, this technology is within the scope of proper temperature, to furnace injection calcium-base absorbing agent and urea liquid, can realize desulfurization simultaneously out of stock.
For simultaneous SO_2 and NO removal technology, select the desulfurization denitrification agent of high-performance, low cost, do not changing coal burning process and the equipment of existing CFBB, under not changing the prerequisite of existing desulphurization system instrument and supplies, the effect reaching good desulphurization and denitration just becomes very important, and this is also this area technical problem urgently to be resolved hurrily.
Summary of the invention
Therefore, the object of the invention is the coal desulfurization denitrfying agent providing a kind of high-performance, low cost, do not changing coal burning process and the equipment of existing CFBB, under not changing the prerequisite of existing desulphurization system instrument and supplies, user selects desulfurization denitrification agent of the present invention according to using the physical and chemical index of coal, thus reaches the effect of desulphurization and denitration simultaneously.
A kind of coal desulfurization denitrfying agent, comprise agstone, described coal desulfurization denitrfying agent also comprises rare-earth tailing, and described rare-earth tailing quality accounts for 1% ~ 8% of agstone quality.
Further, described rare-earth tailing main component is: calcium oxide, di-iron trioxide, silica, magnesia, barium monoxide, manganese oxide, cerium oxide, lanthana, alundum (Al2O3).
Further, the percentage that described each main component quality accounts for rare-earth tailing gross mass is: calcium oxide 28.44%, di-iron trioxide 11.32%, silica 1 2.87%, magnesia 4.4%, barium monoxide 4.25%, manganese oxide 2.3%, cerium oxide 2.96%, lanthana 1.46%, alundum (Al2O3) 1.55%.
The invention also discloses the preparation method of above-mentioned coal desulfurization denitrfying agent, described method is for grind rare-earth tailing ball mill, be milled to 200 orders, then sintering in Muffle furnace is placed on, be made into porous material, become millimetre-sized particle by crusher in crushing, then add in agstone by the particle after fragmentation, the granular mass wherein after fragmentation accounts for 1% ~ 8% of agstone quality.
Beneficial effect of the present invention is: a kind of coal desulfurization denitrfying agent of the present invention and preparation method thereof, rare-earth tailing is utilized to include the feature of rare earth and the complex rare-earth oxidate containing valuable metal such as alkaline-earth metal, transition metal, rare-earth tailing as additive to the increased activity of lime stone in desulfurizing agent, increase desulfuration efficiency, turn increase denitration function.Rare-earth tailing additive is reclaimed by cyclone separator after desulphurization denitration in recirculating fluidized bed, gets back in recirculating fluidized bed and works on, and reduces production cost.
Detailed description of the invention
Below the specific embodiment of the present invention is described:
In the recirculating fluidized bed raw coal combustion stage, add in agstone using rare-earth tailing as additive, rare-earth tailing quality accounts for the 1-8% of agstone quality, is mixed into out of stock dose of coal desulfurization.In rare-earth tailing, each main component quality accounts for the percentage of rare-earth tailing gross mass and is: calcium oxide 28.44%, di-iron trioxide 11.32%, silica 1 2.87%, magnesia 4.4%, barium monoxide 4.25%, manganese oxide 2.3%, cerium oxide 2.96%, lanthana 1.46%, alundum (Al2O3) 1.55%.
The preparation method of above-mentioned coal desulfurization denitrfying agent is for grind rare-earth tailing ball mill, be milled to 200 orders, then sintering in Muffle furnace is placed on, be made into porous material, millimetre-sized particle is become by crusher in crushing, add in agstone by the particle after fragmentation again, the granular mass wherein after fragmentation accounts for 1% ~ 8% of agstone quality.
The valence electron structure of rare earth element uniqueness makes it have good catalytic action, and application is extensive, but due to the high application in coal burning in desulphurization denitration of cost rare.Rare-earth tailing is the discarded object after ore dressing of rare earth, rare-earth tailing includes rare earth and the complex rare-earth oxidate containing valuable metal such as alkaline-earth metal, transition metal, there is good sulfur fixation and catalytic effect, the activity that the adding of complex rare-earth oxidate containing valuable metal greatly can improve catalysis material, service life and heat-resistant stability.Rare-earth tailing mixes the effect that can reach simultaneous SO_2 and NO removal with lime stone, can also reach the object to rare-earth tailing comprehensive utilization of resources simultaneously, thus reduces environmental pollution and the wasting of resources that rare-earth tailing brings.
In the recirculating fluidized bed raw coal combustion stage, add in agstone using rare-earth tailing as additive, rare-earth tailing quality accounts for the 1-8% of agstone quality, is mixed into out of stock dose of coal desulfurization.Because rare-earth tailing includes rare earth and the complex rare-earth oxidate containing valuable metal such as alkaline-earth metal, transition metal, there is good sulfur fixation and catalytic effect.Rare-earth tailing additive, to the increased activity of lime stone in desulfurizing agent, increases desulfuration efficiency, turn increases denitration function.Rare-earth tailing additive is reclaimed by cyclone separator after desulphurization denitration in recirculating fluidized bed, get back in recirculating fluidized bed and work on. make under the prerequisite without the need to carrying out any change to existing apparatus, rare-earth tailing additive has the function of desulphurization denitration to the burning of the high grey colm of high-sulfur in CFBB.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. a coal desulfurization denitrfying agent, comprises agstone, it is characterized in that, described coal desulfurization denitrfying agent also comprises rare-earth tailing, and described rare-earth tailing quality accounts for 1% ~ 8% of agstone quality.
2. coal desulfurization denitrfying agent as claimed in claim 1, it is characterized in that, described rare-earth tailing main component is: calcium oxide, di-iron trioxide, silica, magnesia, barium monoxide, manganese oxide, cerium oxide, lanthana, alundum (Al2O3).
3. coal desulfurization denitrfying agent as claimed in claim 2, it is characterized in that, the percentage that described each main component quality accounts for rare-earth tailing gross mass is: calcium oxide 28.44%, di-iron trioxide 11.32%, silica 1 2.87%, magnesia 4.4%, barium monoxide 4.25%, manganese oxide 2.3%, cerium oxide 2.96%, lanthana 1.46%, alundum (Al2O3) 1.55%.
4. the preparation method of a coal desulfurization denitrfying agent, it is characterized in that, described method is for grind rare-earth tailing ball mill, be milled to 200 orders, then be placed on sintering in Muffle furnace, be made into porous material, become millimetre-sized particle by crusher in crushing, add in agstone by the particle after fragmentation again, the granular mass wherein after fragmentation accounts for 1% ~ 8% of agstone quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510819840.5A CN105289267B (en) | 2015-11-23 | 2015-11-23 | A kind of coal desulfurization denitrfying agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510819840.5A CN105289267B (en) | 2015-11-23 | 2015-11-23 | A kind of coal desulfurization denitrfying agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105289267A true CN105289267A (en) | 2016-02-03 |
| CN105289267B CN105289267B (en) | 2017-12-12 |
Family
ID=55187495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510819840.5A Expired - Fee Related CN105289267B (en) | 2015-11-23 | 2015-11-23 | A kind of coal desulfurization denitrfying agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105289267B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753680A (en) * | 2016-12-05 | 2017-05-31 | 内蒙古科技大学 | A kind of coal-fired denitration additive and preparation method thereof |
| CN107029737A (en) * | 2017-05-24 | 2017-08-11 | 内蒙古科技大学 | A kind of mischmetal denitrating catalyst and preparation method thereof |
| CN107899596A (en) * | 2017-10-30 | 2018-04-13 | 昆明理工大学 | A kind of desulfurization denitrification agent and preparation method thereof |
| CN109534804A (en) * | 2018-12-21 | 2019-03-29 | 承德人和矿业有限责任公司 | Honeycomb ceramic carrier and preparation method thereof |
| CN109821550A (en) * | 2019-03-07 | 2019-05-31 | 内蒙古科技大学 | A kind of method of ceramic honey comb rare-earth base catalyst and preparation method thereof and a kind of coal combustion high-temperature flue gas denitration |
| CN110813070A (en) * | 2019-11-15 | 2020-02-21 | 中国神华能源股份有限公司萨拉齐电厂 | Carbide slag modifier for desulfurization of circulating fluidized bed boiler, modified carbide slag and preparation method thereof |
| CN115029169A (en) * | 2022-04-28 | 2022-09-09 | 鞍钢股份有限公司 | Preparation method of sintered solid fuel |
| WO2023024390A1 (en) * | 2021-08-27 | 2023-03-02 | 中晶环境科技股份有限公司 | Desulfurization and denitration solid particle, and preparation method therefor and use thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109821523B (en) * | 2019-01-23 | 2021-10-08 | 内蒙古科技大学 | Preparation method and application of rare earth tailing-based SCR catalyst |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0945165A2 (en) * | 1998-03-27 | 1999-09-29 | Degussa-Hüls Aktiengesellschaft | Sulphur oxide storage material |
| CN1789393A (en) * | 2005-12-14 | 2006-06-21 | 邵登山 | Catalytic combustion-supporting addictive for blast furnace sprayed coal and its addition method |
| CN101531943A (en) * | 2009-01-06 | 2009-09-16 | 山西潞安环保能源开发股份有限公司 | Additive suitable for meagre coal and meagre lean coal for blast furnace injection |
| CN102268311A (en) * | 2011-07-08 | 2011-12-07 | 力博（天津）节能环保科技有限公司 | Coal-burning sulfur-fixing catalytic combustion compound additive and preparation method thereof |
-
2015
- 2015-11-23 CN CN201510819840.5A patent/CN105289267B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0945165A2 (en) * | 1998-03-27 | 1999-09-29 | Degussa-Hüls Aktiengesellschaft | Sulphur oxide storage material |
| CN1789393A (en) * | 2005-12-14 | 2006-06-21 | 邵登山 | Catalytic combustion-supporting addictive for blast furnace sprayed coal and its addition method |
| CN101531943A (en) * | 2009-01-06 | 2009-09-16 | 山西潞安环保能源开发股份有限公司 | Additive suitable for meagre coal and meagre lean coal for blast furnace injection |
| CN102268311A (en) * | 2011-07-08 | 2011-12-07 | 力博（天津）节能环保科技有限公司 | Coal-burning sulfur-fixing catalytic combustion compound additive and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 谌伦建等: "《工业型煤技术》", 30 September 2012, 煤炭工业出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753680A (en) * | 2016-12-05 | 2017-05-31 | 内蒙古科技大学 | A kind of coal-fired denitration additive and preparation method thereof |
| CN107029737A (en) * | 2017-05-24 | 2017-08-11 | 内蒙古科技大学 | A kind of mischmetal denitrating catalyst and preparation method thereof |
| CN107899596A (en) * | 2017-10-30 | 2018-04-13 | 昆明理工大学 | A kind of desulfurization denitrification agent and preparation method thereof |
| CN109534804A (en) * | 2018-12-21 | 2019-03-29 | 承德人和矿业有限责任公司 | Honeycomb ceramic carrier and preparation method thereof |
| CN109534804B (en) * | 2018-12-21 | 2021-12-14 | 承德人和矿业有限责任公司 | Honeycomb ceramic carrier and preparation method thereof |
| CN109821550A (en) * | 2019-03-07 | 2019-05-31 | 内蒙古科技大学 | A kind of method of ceramic honey comb rare-earth base catalyst and preparation method thereof and a kind of coal combustion high-temperature flue gas denitration |
| CN110813070A (en) * | 2019-11-15 | 2020-02-21 | 中国神华能源股份有限公司萨拉齐电厂 | Carbide slag modifier for desulfurization of circulating fluidized bed boiler, modified carbide slag and preparation method thereof |
| WO2023024390A1 (en) * | 2021-08-27 | 2023-03-02 | 中晶环境科技股份有限公司 | Desulfurization and denitration solid particle, and preparation method therefor and use thereof |
| CN115029169A (en) * | 2022-04-28 | 2022-09-09 | 鞍钢股份有限公司 | Preparation method of sintered solid fuel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105289267B (en) | 2017-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105289267B (en) | A kind of coal desulfurization denitrfying agent and preparation method thereof | |
| US9895657B2 (en) | High-efficiency method for removing sulfur and mercury of coal-fired flue gas, and apparatus thereof | |
| CN101532782B (en) | Sintering gas purifying and waste heat recovering technique | |
| CN103453538B (en) | A kind of minimum discharge CFBB with three grades of desulphurization systems | |
| CN101791561B (en) | Desulfurization and denitrification catalyst and preparation method thereof | |
| CN101607172B (en) | Desulfurizer for desulfurization of smoke and method for preparing same | |
| CN102824844A (en) | Desulfurization and denitrification agent, preparation method and application thereof | |
| CN100493680C (en) | Circulating fluidized bed boiler high efficiency desulfurization technology | |
| CN102604712B (en) | Steel slag composite desulfurizer for desulfurizing pulverized coal during combustion and desulfurization method using same | |
| CN203549871U (en) | Novel ultra-low emission circulating fluidized bed boiler | |
| CN109364711A (en) | A kind of flue gas system for the ultra-clean processing of cement kiln tail gas | |
| CN105543471B (en) | A kind of NOx control methods based on suppression Ore Sintering Process fuel bound nitrogen conversion | |
| CN107456865A (en) | The method of flue gas desulfurization and denitrification | |
| CN101775325B (en) | Coal composite sulfur fixing agent | |
| CN102836636A (en) | Desulfurization denitration composition, preparation method and application thereof | |
| Wu et al. | Advances in air pollution control for key industries in China during the 13th five-year plan | |
| Ning et al. | Recent advances in process and materials for dry desulfurization of industrial flue gas: An overview | |
| CN106178862A (en) | Sintering smoke denitrifier and preparation method thereof | |
| Chen et al. | Catalysts prepared from solid wastes for efficient removal of NOx in NH3-SCR process: a review | |
| CN104941435A (en) | Normal temperature semi-dry method circulating fluidized bed flue gas desulphurization system and method | |
| CN103143251B (en) | Purification method for industrial emission gas | |
| CN102373105B (en) | Fire coal or inferior coal desulfurizer for sulfur fixation in circulating fluidized bed boiler | |
| CN104745825A (en) | Method for recovering iron ore concentrate from pulverized fuel ash containing iron | |
| Zhang et al. | Sulfur migration behavior in sintering and pelletizing processes: A review | |
| CN102512921A (en) | Method and system for integrated removal of a plurality of flue gas pollutants in circulating fluidized bed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 |