CN101502747A - Flue gas integrated desulphurization and denitrification catalyst - Google Patents
Flue gas integrated desulphurization and denitrification catalyst Download PDFInfo
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- CN101502747A CN101502747A CNA2009100063298A CN200910006329A CN101502747A CN 101502747 A CN101502747 A CN 101502747A CN A2009100063298 A CNA2009100063298 A CN A2009100063298A CN 200910006329 A CN200910006329 A CN 200910006329A CN 101502747 A CN101502747 A CN 101502747A
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- flue gas
- catalyst
- desulphurization
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- denitrification
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- 239000003054 catalyst Substances 0.000 title claims abstract description 50
- 239000003546 flue gas Substances 0.000 title claims abstract description 49
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 48
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 63
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000004202 carbamide Substances 0.000 claims abstract description 25
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims abstract description 21
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229940043237 diethanolamine Drugs 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 150000001412 amines Chemical class 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002028 Biomass Substances 0.000 abstract description 27
- 238000002309 gasification Methods 0.000 abstract description 27
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 21
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011575 calcium Substances 0.000 abstract description 2
- 229910052791 calcium Inorganic materials 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 4
- 239000007789 gas Substances 0.000 abstract 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 32
- 239000003245 coal Substances 0.000 description 28
- 238000006477 desulfuration reaction Methods 0.000 description 22
- 229910052717 sulfur Inorganic materials 0.000 description 22
- 239000011593 sulfur Substances 0.000 description 22
- 230000023556 desulfurization Effects 0.000 description 20
- 239000000243 solution Substances 0.000 description 10
- 239000005864 Sulphur Substances 0.000 description 9
- 239000000779 smoke Substances 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 239000007864 aqueous solution Substances 0.000 description 6
- 125000001741 organic sulfur group Chemical group 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000000567 combustion gas Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 230000003009 desulfurizing effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000010117 shenhua Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention provides an integrated desulphurization and denitrification catalyst of flue gas. Biomass gasification gas, marsh gas and coal-fired, oil-fired boiler flue gas contain sulfur dioxide and nitrogen oxides in large quantity which are hard to be removed by using conventional calcium injection desulphurization technique. Currently, a great number of domestic desulphurization devices are introduced from abroad by spending enormous amount of capital, so the cost of desulphurization and denitrification of biomass gasification gas, marsh gas and coal-fired, oil-fired boiler flue gas is comparatively high. Sulfur dioxide and nitrogen oxides generated in large quantity cause serious damage to the environment each year, and the state always focuses on the pollution problem. The catalyst comprises the following components according to parts by weight: 17-23 parts of sodium hydroxide, 30-60 parts of urea, 3-10 parts of monoethanolamine and 25-55 parts of diethanolamine. The catalyst is used for desulphurization and denitrification of combustion emissions.
Description
Technical field:
The present invention relates to the catalyst of the desulfurization removing nitric of a kind of chemical method biomass gasification burning, biogas and fire coal, oil burning boiler flue gas.
Background technology:
Biomass gasification burning, biogas and fire coal, oil burning boiler flue gas contain a large amount of sulfur dioxide, sulfur trioxide and nitrogen oxide, if utilize traditional calcium injection and desulfurization technology, iron oxide technology, are difficult to remove, and have secondary pollution.The desulfurizer of present domestic majority all spends huge sums from external introduction, and biomass gasification burning, biogas and fire coal, oil burning boiler flue gas desulfuration and denitrification cost are higher.Will produce a large amount of sulfur dioxide every year and nitrogen oxide does great damage to environment, and this pollution problem is the problem that state key is paid close attention to always.
At present, also do not have both at home and abroad at present small investment, operating cost low, solve the high technology of desulfurization and denitrifying oxide and efficient simultaneously.
Disclosed Chinese patent application 03113768.7 provided a kind of urea seeding agent smoke treatment method of desulfurization removing nitric simultaneously in 2003, this method is made absorbent with urea, flue gas enters continuously from the absorption tower import, with the abundant hybrid reaction of absorption liquid, removes SO in the absorption tower
2And NO
X, it is characterized in that, adopt titanium dioxide or diatomite to make the catalyst preparation absorption liquid, and reclaim sulfuric acid ammonium and ammonium nitrate are made fertilizer.Urea in this method can only be as the agent that removes of inorganic sulfur, can not be converted into inorganic sulfur with the organic sulfur removal in the flue gas or with organic sulfur, simple urea can not effectively reduce the acidity of flue gas, therefore its desulfurization and denitrification effect are unsatisfactory, the value of commercial Application is low, and incompatibility biomass gasification burning and biogas desulfurization.
Summary of the invention:
The purpose of this invention is to provide a kind of desulfurization removing nitric efficient height, can effectively remove the organic sulfur in biomass gasification burning, biogas and fire coal, the oil burning boiler flue gas, simultaneously biomass gasification burning, biogas and the fire coal that sulphur residue stability is high admittedly, the catalyst of oil burning boiler flue gas desulfuration and denitrification.
Above-mentioned purpose realizes by following technical scheme:
The integrated desulphurization and denitrification catalyst of flue gas, its composition comprises: NaOH, urea, monoethanolamine, diethanol amine, the parts by weight of described NaOH are 17-23, the parts by weight of described urea are 30-60, the parts by weight of described monoethanolamine are 3-10, and the parts by weight of described diethanol amine are 25-55.
The integrated desulphurization and denitrification catalyst of described flue gas, described NaOH is the technical grade NaOH of purity 97%, described urea is the technical grade urea of total nitrogen content 46%, described monoethanolamine is the technical grade monoethanolamine of total amine amount 99%, and described diethanol amine is the technical grade diethanol amine of total amine amount 96%.
This technical scheme has following beneficial effect:
1. cost of material of the present invention is low, and preparation is simple, can carry out the desulfurization removing nitric reaction in same operation simultaneously, and can effectively remove the organic sulfur in biomass gasification burning, biogas and fire coal, the oil burning boiler flue gas.It is simple to use this catalyst to carry out the desulfurizing and denitrifying method of biomass gasification burning, biogas and fire coal, oil burning boiler flue gas, simultaneously do not need equipment is changed, can operate by existing purifier, desulfurization degree can reach more than 95%, and denitrification percent reaches more than 50%.
2. catalyst of the present invention and the desulfurizing and denitrifying method that uses this catalyst to carry out biomass gasification burning, biogas and fire coal, oil burning boiler flue gas can be used for the flue gas of boilers such as fire coal, residual oil and pitch of various combustion of sulfur, nitrogenate and the purification of biogas.
3. the NaOH among the present invention can reduce acidity, shortening reaction time, the raising desulfurization removing nitric efficient of biomass gasification burning, biogas and fire coal, oil burning boiler flue gas when the catalytic desulfurization denitrification reaction; Urea is that inorganic sulfur is deviate from reactant, can improve the long term storage stability of desulfurized effect in its biomass gasification burning, biogas and fire coal, the oil burning boiler flue gas and solid sulphur residue sulfate, so that solid sulphur residue can be applied on the construction material.Described monoethanolamine be in biomass gasification burning, biogas and fire coal, the oil burning boiler flue gas organic sulfur deviate from agent, can improve desulfurization removing nitric efficient.Described diethanol amine is the reforming catalyst that organic sulfur changes into inorganic sulfur, after it is transformed into inorganic sulfur with the organic sulfur catalysis in biomass gasification burning, biogas and fire coal, the oil burning boiler flue gas earlier, the inorganic sulfur that cooperates NaOH, urea, monoethanolamine to have converted to again is cured in the residue, sulphur long-term stability in the residue is not rebounded, can do construction material and use.Each material combination of this catalyst uses biomass gasification burning, biogas and fire coal, oil burning boiler flue gas after can guaranteeing to handle to reach national environmental standard.
4. when the present invention carries out the desulfurization removing nitric of biomass gasification burning, biogas and fire coal, oil burning boiler flue gas, the amount of the catalyst solution that can spray according to the concentration adjustment of biomass gasification burning, biogas and fire coal, oil burning boiler sulfur dioxide in flue gas.Desulphurization and denitrification catalyst is with after biomass gasification burning, biogas and fire coal, oil burning boiler flue gas fully contact, by equipment for separating liquid from solid sulfate in the reacted catalyst solution of desulfurization removing nitric and the solid slag of nitrate are separated, part has neither part nor lot in the desulfurization removing nitric catalyst for reaction and can continue to recycle.Isolated sulfate and nitrate can be used as building material and use.
The specific embodiment of the present invention:
Embodiment 1:
The integrated desulphurization and denitrification catalyst of biomass gasification burning, biogas and fire coal, oil burning boiler flue gas, its composition comprises: NaOH, urea, monoethanolamine, diethanol amine, the parts by weight of described NaOH are 17-23, the parts by weight of described urea are 30-60, the parts by weight of described monoethanolamine are 3-10, and the parts by weight of described diethanol amine are 25-55.
The integrated desulphurization and denitrification catalyst of described biomass gasification burning, biogas and fire coal, oil burning boiler flue gas, described NaOH is the technical grade NaOH of purity 97%, described urea is the technical grade urea of total nitrogen content 46%, described monoethanolamine is the technical grade monoethanolamine of total amine amount 99%, and described diethanol amine is the technical grade diethanol amine of total amine amount 96%.
Embodiment 2:
The integrated desulphurization and denitrification catalyst of biomass gasification burning, biogas and fire coal, oil burning boiler flue gas, its composition comprises: NaOH, urea, monoethanolamine, diethanol amine, described NaOH 20%, urea 43%, monoethanolamine 8%, diethanol amine 33%.
Embodiment 3:
The present invention can also get raw material by following component and proportioning: 17kg NaOH, 33kg urea, 7kg monoethanolamine, 43kg diethanol amine mix the desulphurization and denitrification catalyst that obtains biomass gasification burning, biogas and fire coal, oil burning boiler flue gas.
Embodiment 4:
With limitless blessing biogas comprehensive utilization engineering purifier is experimental facilities, and the biogas sulfur content is 2.6%.The water of the 100kg catalyst of embodiment 3 preparation and 300kg is hybridly prepared into the aqueous solution of catalyst, this aqueous solution is fully contacted with biogas in purifying dress, by catalyst solution weight and biogas weight ratio is 3:1, and the agent sulphur of sulphur is than being 2.3:1 in the catalyst of consumption and the biogas.Biogas after desulfurization removing nitric is handled reaches the use standard fully, and the sulfur-bearing and the nitrogen content correction data of biogas see Table 1 before and after this processing.
The sulfur-bearing and the nitrogenous correction data of biogas before and after table 1 is handled
Biogas (mg/Nm before project name is handled
3) processing back biogas (mg/Nm
3)
Sulfur dioxide 2,890 123
Nitrogen oxide 686 3.7
Embodiment 5:
The present invention can also get raw material by following component and proportioning: 20kg NaOH, 38kg urea, 7kg monoethanolamine, 43kg diethanol amine mix the desulphurization and denitrification catalyst that obtains biomass gasification burning, biogas and fire coal, oil burning boiler flue gas.
Embodiment 6:
With certain power plant coal-burning boiler is experimental facilities, is raw material with the Shenhua fire coal, and this fire coal sulfur content is 3.2%, and sulfur dioxide in flue gas content is 4000mg/Nm
3~ 4600mg/Nm
3About.Increase by a column for smoke purification in smoke evacuation place.The water of the 108kg catalyst of embodiment 3 preparation and 400kg is hybridly prepared into the aqueous solution of catalyst, by the spraying of purifying column top it is fully contacted with flue gas this aqueous solution, the spraying amount is 5:1 by catalyst solution weight and coal-fired weight ratio, and the agent sulphur of sulphur is than being 3.5:1 in the catalyst of consumption and the coal.Flue gas after desulfurization removing nitric is handled reaches discharge standard fully, and the sulfur-bearing and the nitrogen content correction data of flue gas see Table 2 before and after this processing
The sulfur-bearing and the nitrogenous correction data of flue gas before and after table 2 embodiment 5 handles
Smoke emissioning concentration is handled the back smoke emissioning concentration before handling
Project name
(mg/Nm
3) (mg/Nm
3)
Sulfur dioxide 3,980 156
Nitrogen oxide 866 4.7
As can be seen from the above table, the flue gas after catalyst that the employing embodiment of the invention provides and desulfurizing and denitrifying method are handled can reach discharge standard, and the desulfurization degree that calculates with sulfur dioxide reaches 96%, and denitrification percent reaches 53%
Embodiment 7:
Get raw material by following component and proportioning: 18kg NaOH, 32kg urea, 6kg monoethanolamine, 35kg diethanol amine, obtain the desulphurization and denitrification catalyst of biomass gasification burning, biogas and fire coal, oil burning boiler flue gas, each raw material of this catalyst is joined in the 300kg water be made into catalyst solution.The technical indicator of this catalyst sees Table 3
Every technical indicator of the desulphurization and denitrification catalyst solution of table 3 biomass gasification burning, biogas and fire coal, oil burning boiler flue gas
The project indicator
Density, g/cm
31.27
Kinematic viscosity, mm
2/ s (20 ℃) 4.00
The color water white transparency
Mechanical admixture, % 0.03
Water-soluble soda acid pH value 14
Embodiment 8:
The present invention can also get raw material by following component and proportioning: 20kg NaOH, 45kg urea, 8kg monoethanolamine, 30kg diethanol amine, obtain the desulphurization and denitrification catalyst of biomass gasification burning, biogas and fire coal, oil burning boiler flue gas, each raw material of this catalyst is joined in the 600kg water successively be made into catalyst solution.
Embodiment 9:
With the oil burning boiler is experimental facilities, is fuel with the Fujian high-sulfur residual oil, and the sulfur content of this high-sulfur residual oil is 3.2%, and sulfur in smoke content is 6000mg/Nm
3About.Discharging fume increase by one smoke eliminator, pass through in this device of flue gas, the spraying that the aqueous catalyst solution of embodiment 6 preparations is met the flow of flue gas direction by the purifier top makes it fully contact with flue gas, the spraying amount is 7:1 by catalyst solution weight and coal-fired weight ratio, and the agent sulphur of sulphur is than being 4:1 in the catalyst of consumption and the residual oil.Flue gas after desulfurization removing nitric is handled reaches discharge standard fully, and the sulfur-bearing and the nitrogen content correction data of flue gas see Table 4 before and after this processing.
The sulfur-bearing and the nitrogen content correction data of flue gas before and after table 4 embodiment 8 handles
Smoke emissioning concentration is handled the back smoke emissioning concentration before handling
Project name
(mg/Nm
3) (mg/Nm
3)
Sulfur dioxide 6,300 256
Nitrogen oxide 580 183
Embodiment 10: with desulfurizer in the Xin Lixiang gasifying stalk engineering of Acheng is experimental facilities, and the combustion gas sulfur content is 3.5%.The water of the 100kg catalyst of embodiment 1 preparation and 350kg is hybridly prepared into the aqueous solution of catalyst, this aqueous solution is used in desulfurizer, by catalyst solution weight and combustion gas weight ratio is 6:1, and the agent sulphur of sulphur is than being 2.5:1 in the catalyst of consumption and the combustion gas.Combustion gas after desulfurization is handled reaches the use standard fully, and the sulfur content correction data of combustion gas sees Table 5 before and after this processing
The sulfur-bearing correction data of biogas before and after table 5 is handled
Biogas (mg/Nm before project name is handled
3) processing back biogas (mg/Nm
3)
Sulfur oxide 3,960 142
Claims (2)
1. the integrated desulphurization and denitrification catalyst of a flue gas, its composition comprises: NaOH, urea, monoethanolamine, diethanol amine, it is characterized in that: the parts by weight of described NaOH are 17-23, the parts by weight of described urea are 30-60, the parts by weight of described monoethanolamine are 3-10, and the parts by weight of described diethanol amine are 25-55.
2. the integrated desulphurization and denitrification catalyst of flue gas according to claim 1, it is characterized in that: described NaOH is the technical grade NaOH of purity 97%, described urea is the technical grade urea of total nitrogen content 46%, described monoethanolamine is the technical grade monoethanolamine of total amine amount 99%, and described diethanol amine is the technical grade diethanol amine of total amine amount 96%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100063298A CN101502747A (en) | 2008-02-03 | 2009-02-03 | Flue gas integrated desulphurization and denitrification catalyst |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810063982 | 2008-02-03 | ||
| CN200810063982.3 | 2008-02-03 | ||
| CNA2009100063298A CN101502747A (en) | 2008-02-03 | 2009-02-03 | Flue gas integrated desulphurization and denitrification catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101502747A true CN101502747A (en) | 2009-08-12 |
Family
ID=40975202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100063298A Pending CN101502747A (en) | 2008-02-03 | 2009-02-03 | Flue gas integrated desulphurization and denitrification catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101502747A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301826A (en) * | 2012-03-15 | 2013-09-18 | 中国钢铁股份有限公司 | Catalyst for reducing nitrogen oxides in exhaust gas and method for producing the same |
| CN106823718A (en) * | 2017-02-13 | 2017-06-13 | 中国石油大学(北京) | A kind of solid denitrfying agent and its preparation method and application |
| CN106823721A (en) * | 2017-02-23 | 2017-06-13 | 中国石油大学(北京) | A kind of flue gas desulfurization and denitrification agent and its preparation method and application |
| CN107149867A (en) * | 2017-06-07 | 2017-09-12 | 四川施利旺农业科技开发有限公司 | Combustion product gases environment-friendly low-temperature composite denitration agent and preparation method thereof |
| CN116459663A (en) * | 2023-03-13 | 2023-07-21 | 上海安居乐环保科技股份有限公司 | Catalytic desulfurization process and reaction device for removing hydrogen sulfide in sewage and waste gas |
-
2009
- 2009-02-03 CN CNA2009100063298A patent/CN101502747A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301826A (en) * | 2012-03-15 | 2013-09-18 | 中国钢铁股份有限公司 | Catalyst for reducing nitrogen oxides in exhaust gas and method for producing the same |
| CN103301826B (en) * | 2012-03-15 | 2016-12-21 | 中国钢铁股份有限公司 | Catalyst for reducing nitrogen oxides in exhaust gas and method for producing the same |
| CN106823718A (en) * | 2017-02-13 | 2017-06-13 | 中国石油大学(北京) | A kind of solid denitrfying agent and its preparation method and application |
| CN106823721A (en) * | 2017-02-23 | 2017-06-13 | 中国石油大学(北京) | A kind of flue gas desulfurization and denitrification agent and its preparation method and application |
| CN107149867A (en) * | 2017-06-07 | 2017-09-12 | 四川施利旺农业科技开发有限公司 | Combustion product gases environment-friendly low-temperature composite denitration agent and preparation method thereof |
| CN116459663A (en) * | 2023-03-13 | 2023-07-21 | 上海安居乐环保科技股份有限公司 | Catalytic desulfurization process and reaction device for removing hydrogen sulfide in sewage and waste gas |
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Open date: 20090812 |