CN102068888A - Method for simultaneously desulfurizing and denitrating flue gas by wet method - Google Patents
Method for simultaneously desulfurizing and denitrating flue gas by wet method Download PDFInfo
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- CN102068888A CN102068888A CN2010106086332A CN201010608633A CN102068888A CN 102068888 A CN102068888 A CN 102068888A CN 2010106086332 A CN2010106086332 A CN 2010106086332A CN 201010608633 A CN201010608633 A CN 201010608633A CN 102068888 A CN102068888 A CN 102068888A
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- flue gas
- feed liquid
- sodium
- wet
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Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000003546 flue gas Substances 0.000 title claims abstract description 32
- 230000003009 desulfurizing effect Effects 0.000 title claims abstract description 6
- 238000010521 absorption reaction Methods 0.000 claims abstract description 21
- 239000000654 additive Substances 0.000 claims abstract description 17
- 230000000996 additive effect Effects 0.000 claims abstract description 17
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 230000023556 desulfurization Effects 0.000 claims abstract description 12
- 150000001412 amines Chemical class 0.000 claims abstract description 10
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 5
- 239000010452 phosphate Substances 0.000 claims abstract description 5
- -1 organic acid salts Chemical class 0.000 claims abstract description 3
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 8
- ODIGIKRIUKFKHP-UHFFFAOYSA-N (n-propan-2-yloxycarbonylanilino) acetate Chemical compound CC(C)OC(=O)N(OC(C)=O)C1=CC=CC=C1 ODIGIKRIUKFKHP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000005200 wet scrubbing Methods 0.000 claims description 5
- 239000004254 Ammonium phosphate Substances 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims description 4
- 235000019289 ammonium phosphates Nutrition 0.000 claims description 4
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 4
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 4
- ZUDYLZOBWIAUPC-UHFFFAOYSA-L disodium;pentanedioate Chemical compound [Na+].[Na+].[O-]C(=O)CCCC([O-])=O ZUDYLZOBWIAUPC-UHFFFAOYSA-L 0.000 claims description 4
- 239000003517 fume Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229940074404 sodium succinate Drugs 0.000 claims description 4
- ZDQYSKICYIVCPN-UHFFFAOYSA-L sodium succinate (anhydrous) Chemical compound [Na+].[Na+].[O-]C(=O)CCC([O-])=O ZDQYSKICYIVCPN-UHFFFAOYSA-L 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- JNWGMESTOMYLND-UHFFFAOYSA-N hexanedioic acid;sodium Chemical compound [Na].OC(=O)CCCCC(O)=O JNWGMESTOMYLND-UHFFFAOYSA-N 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 150000003016 phosphoric acids Chemical class 0.000 claims description 2
- GJJQWIOYOCDCJA-UHFFFAOYSA-N phosphoric acid 1,3,5,7-tetrazatricyclo[3.3.1.13,7]decane Chemical compound OP(O)(O)=O.C1N(C2)CN3CN1CN2C3 GJJQWIOYOCDCJA-UHFFFAOYSA-N 0.000 claims 1
- 239000002250 absorbent Substances 0.000 abstract description 2
- 230000002745 absorbent Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 20
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 10
- 239000004312 hexamethylene tetramine Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 150000003254 radicals Chemical class 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000001488 sodium phosphate Substances 0.000 description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 235000011008 sodium phosphates Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- 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
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- Treating Waste Gases (AREA)
Abstract
The invention provides a method for simultaneously desulfurizing and denitrating a flue gas by a wet method. A novel additive is added into a conventional wet-method flue gas desulfurization system so as to stably and highly-efficiently remove SO2 and NOx from the flue gas at the same time, takes organic amine, phosphate and organic acid salts as principal components, and according to a certain proportion, is prepared into absorbent feed liquid which is added into a pulp chest of an absorption tower of the conventional wet-method flue gas desulfurization system, so that the conventional wet-method desulfurization system has the remarkable function of removing the NOx from the flue gas, the rate of removal of the SO2 may be over 90 percent and the rate of removal of the NOx may be over 60 percent. The method has the advantages of simple process flow, less investment, stable NOx removal effect, high removal efficiency and wide application range, and can be implemented by simply altering the conventional wet-method flue gas desulfurization system.
Description
Technical field
The present invention relates to a kind of wet flue gas desulfurization denitration method simultaneously, belong to the exhaust-gas treatment in the environmental pollution prevention and control, particularly boiler flue gas purification is administered technical field.
Background technology
China is the abundant country of a coal reserves, and coal accounts for 75% of primary energy, and energy consumption structure has caused the aggravation of environmental pollution, the SO that coal burning is discharged to the undue dependence of coal
2
And NO
x
It is the main precursor of acid rain.Generally adopt wet process of FGD (WFGD) to come desulphurization denitration at present with the method that selectivity catalytic denitration (SCR) combines, though this kind method pollutant removing efficient height, but investment is higher with operating cost, and complex process becomes the current focus of a research direction in the world so develop multiple flue gas pollutant cooperation-removal technology.At SO
2
And NO
x
Remove in the middle of, NO
x
Remove than SO
2
Much more difficult, therefore from NO
x
Angle can be broadly divided into two classes with while desulphurization denitration technology: the first kind is a catalytic reduction method, mainly utilizes catalyst, reducing agent etc. with NO
x
Reduce, realize desulphurization denitration simultaneously, as behind bag-type dust, flue gas is while desulfurization removing nitric technology under ammonia and catalyst synergy, the shortcoming of this kind method is Preparation of catalysts and regeneration more complicated, adopts ammonia to do that absorbent is volatile to cause nitrogen loss and exhaust pollution simultaneously; Second class is the oxidation absorption process, utilizes various strong oxidizers and living radical, and water-fast NO oxidation is generated NO
2
Thereby, and SO
2
Absorb strong oxidizer such as NaClO simultaneously in the later stage
2
, ClO
2
, HClO
3
, KMnO
4
, H
2
O
2
Deng, free radical such as O, OH, O
3
Deng, its generating technique has electron beam technology, corona discharge pulse, free radical shower etc., but owing to the strong oxidizer chemical property that oxidizing process is used is active, there are inflammable and explosive danger in storage or use, and technical equipment such as electron beam, pulsed discharge, free radical shower are costly, are not suitable for China's actual conditions.Based on domestic present wet desulphurization broad application, the coordinated desulfurization denitration technology of the oxidation absorption process that exploitation can combine with the wet desulphurization technology has boundless prospects for commercial application.
Summary of the invention
At the deficiency of present flue gas desulfurization and denitrification present situation, the purpose of this invention is to provide a kind of wet flue gas desulfurization denitration method simultaneously.This method makes the SO in the flue gas by adding novel additive to conventional wet method fume desulfurizing system
2
, NO
x
Stability and high efficiency removes simultaneously.The present invention can implement through simple transformation on the wet method fume desulfurizing system of routine.
The object of the present invention is achieved like this: be the additive of main component with organic amine, phosphate and acylate, be mixed with solution by a certain percentage, this solution is directly injected the inlet of absorption tower stock tank or circulating pump by pump, after the mixing of desulfurization absorption liquid, carry out sufficient haptoreaction with flue gas, traditional wet desulphurization absorption tower is had remove NO in the flue gas significantly
x
Function, SO
2
Clearance can be greater than 90%, NO
x
Clearance can be greater than 60%.Its technical process is as follows:
1) additive preparation feed liquid.Add a certain proportion of water, organic amine, phosphate and acylate successively in hopper, stirring is mixed with the additive feed liquid.Wherein organic amine refers to hexamethylenetetramine, and phosphate can be a kind of in ammonium phosphate (or sodium), the diammonium hydrogen phosphate (or sodium) etc. or several, and acylate can be a kind of in sodium succinate, Sodium glutarate, the adipic acid sodium etc. or several.Organic amine content in the final feed liquid is 5～20%, and the content of phosphoric acid salt is 0.1～10%, and the content of organic acid salt is 0.1～5%, and water content is 70～95%;
2) the additive feed liquid is added conventional wet desulphurization absorption tower system.Can the additive feed liquid directly be added in the desulfuration absorbing tower stock tank with dosing pump, perhaps pump is to the inlet of desulfuration absorbing tower circulating pump, and the content that makes organic amine in the stock tank of absorption tower is 0.1～0.5%, and control absorption tower slurry pH value is 4～6, flue gas is carried out wet scrubbing, remove the SO in the flue gas
2
And NO
x
, as shown in drawings.
The advantage of this method is can implement through simple transformation on existing wet method fume desulfurizing system, and technological process is simple, small investment, NO
x
Removal effect is stable, removal efficiency is high, and range of application is wide.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
The specific embodiment
Embodiment 1
1) add entry, hexamethylenetetramine, sodium phosphate, adipic acid sodium successively in additive feed liquid case, the concentration that makes hexamethylenetetramine is 8.0%, and sodium phosphate concentration is 0.5%, and the adipic acid na concn is 1.2%, stirs it is fully dissolved;
2) with dosing pump the additive feed liquid is added in the desulfuration absorbing tower stock tank, the content that makes hexamethylenetetramine in the stock tank of absorption tower is 0.2%, and control absorption tower slurry pH value is 5.0, and flue gas is carried out wet scrubbing, removes the SO in the flue gas
2
And NO
x
3) the absorption tower form adopts spray void tower, SO in flue gas
2
Concentration is 2500mg/Nm
3
, NO
x
Concentration is 500mg/Nm
3
, liquid-gas ratio is 10L/m
3
Situation under, SO
2
Clearance is 92%, NO
x
Clearance is 65%.
Embodiment 2
1) add entry, hexamethylenetetramine, diammonium hydrogen phosphate, sodium succinate successively in additive feed liquid case, the concentration that makes hexamethylenetetramine is 15.0%, and diammonium hydrogen phosphate concentration is 3%, and sodium succinate concentration is 2%, stirs it is fully dissolved;
2) with dosing pump the additive feed liquid is added in the desulfuration absorbing tower stock tank, the content that makes hexamethylenetetramine in the stock tank of absorption tower is 0.3%, and control absorption tower slurry pH value is 5.5, and flue gas is carried out wet scrubbing, removes the SO in the flue gas
2
And NO
x
3) the absorption tower form adopts spray void tower, SO in flue gas
2
Concentration is 2000mg/Nm
3
, NO
x
Concentration is 600mg/Nm
3
, liquid-gas ratio is 12L/m
3
Situation under, SO
2
Clearance is 97%, NO
x
Clearance is 72%.
Embodiment 3
1) add entry, hexamethylenetetramine, ammonium phosphate, Sodium glutarate successively in additive feed liquid case, the concentration that makes hexamethylenetetramine is 10%, and ammonium phosphate concentration is 5.0%, and Sodium glutarate concentration is 0.2%, stirs it is fully dissolved;
2) with dosing pump the additive feed liquid is added in the desulfuration absorbing tower stock tank, the content that makes hexamethylenetetramine in the stock tank of absorption tower is 0.5%, and control absorption tower slurry pH value is 6.0, and flue gas is carried out wet scrubbing, removes the SO in the flue gas
2
And NO
x
3) the absorption tower form adopts spray void tower, SO in flue gas
2
Concentration is 3000mg/Nm
3
, NO
x
Concentration is 800mg/Nm
3
, liquid-gas ratio is 15L/m
3
Situation under, SO
2
Clearance is 95%, NO
x
Clearance is 81%.
Claims (1)
1. a wet flue gas while desulfurization denitration method by adding novel additive to conventional wet method fume desulfurizing system, makes the SO in the flue gas
2, NO
xRemoving of stability and high efficiency is characterized in that comprising the steps: simultaneously
1) additive preparation feed liquid, water, organic amine, phosphate and acylate mixing and stirring are mixed with the additive feed liquid: wherein organic amine refers to hexamethylenetetramine, phosphate can be a kind of in ammonium phosphate (or sodium), the diammonium hydrogen phosphate (or sodium) etc. or several, and acylate can be a kind of in sodium succinate, Sodium glutarate, the adipic acid sodium etc. or several; Organic amine content in the final feed liquid is 5～20%, and the content of phosphoric acid salt is 0.1～10%, and the content of organic acid salt is 0.1～5%, and water content is 70～95%;
2) the additive feed liquid is added conventional wet desulphurization absorption tower stock tank, the content that makes organic amine in the stock tank of absorption tower is 0.1～0.5%, and control absorption tower slurry pH value is 4～6, and flue gas is carried out wet scrubbing, removes SO2 and NOx in the flue gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106086332A CN102068888A (en) | 2010-12-28 | 2010-12-28 | Method for simultaneously desulfurizing and denitrating flue gas by wet method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106086332A CN102068888A (en) | 2010-12-28 | 2010-12-28 | Method for simultaneously desulfurizing and denitrating flue gas by wet method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102068888A true CN102068888A (en) | 2011-05-25 |
Family
ID=44027767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106086332A Pending CN102068888A (en) | 2010-12-28 | 2010-12-28 | Method for simultaneously desulfurizing and denitrating flue gas by wet method |
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| Country | Link |
|---|---|
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847418A (en) * | 2011-07-01 | 2013-01-02 | 湖南晟通科技集团有限公司 | Additive for limestone-gypsum wet flue gas desulfurization and denitration process |
| CN102847429A (en) * | 2011-07-01 | 2013-01-02 | 湖南晟通科技集团有限公司 | Limestone-gypsum wet-method flue gas desulfurization additive |
| CN102847428A (en) * | 2011-07-01 | 2013-01-02 | 湖南晟通科技集团有限公司 | Limestone-gypsum wet desulfurization additive |
| CN102921282A (en) * | 2012-11-15 | 2013-02-13 | 常州大学 | Gas desulfurizing agent and preparation method thereof |
| CN103084055A (en) * | 2011-10-30 | 2013-05-08 | 湖南晟通科技集团有限公司 | Desulphurization additive |
| CN103894043A (en) * | 2014-04-14 | 2014-07-02 | 山东金瑞达环保科技有限公司 | Organic amine desulfurizer for cyclically absorbing and removing SO2 from flue gas and application of organic amine desulfurizer |
| CN105180486A (en) * | 2015-08-11 | 2015-12-23 | 瓮福（集团）有限责任公司 | Method for comprehensively recycling waste heat of phosphate fertilizer plant |
| CN106807201A (en) * | 2017-02-07 | 2017-06-09 | 济南利鸿环保科技有限公司 | A kind of denitration method for flue gas of coproduction cyanuric acid |
| 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 |
| CN108126497A (en) * | 2017-12-28 | 2018-06-08 | 徐州润华环保科技有限公司 | Effect agent and its preparation method and application is proposed for the flue gas desulfurization of wet desulfurization system |
| CN108525494A (en) * | 2018-03-27 | 2018-09-14 | 昆明理工大学 | A kind of fume desulfurizing agent and application |
| CN110624364A (en) * | 2019-09-12 | 2019-12-31 | 中国石油化工股份有限公司 | Organic absorbent for removing sulfur dioxide in mixed gas and preparation method |
| CN112371038A (en) * | 2020-10-29 | 2021-02-19 | 南京霖厚环保科技有限公司 | Wet flue gas desulfurization and denitrification method |
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2010
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| JPH01258730A (en) * | 1988-04-07 | 1989-10-16 | Hitachi Ltd | Wet desulfurization method and equipment |
| US20030121824A1 (en) * | 1998-12-29 | 2003-07-03 | Longyan Wang | Sulfur transfer additive for catalytic cracking of hydrocarbons and a catalytic cracking processs of hydrocarbons using the same |
| CN1589954A (en) * | 2003-08-26 | 2005-03-09 | 武汉凯迪电力股份有限公司 | Dry smoke cleaning process for desulfurizing and denitrating simultaneously and its system |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847428B (en) * | 2011-07-01 | 2015-09-30 | 湖南晟通科技集团有限公司 | A kind of Limestone-gypsum Wet Flue Gas Desulfurization Process additive |
| CN102847429A (en) * | 2011-07-01 | 2013-01-02 | 湖南晟通科技集团有限公司 | Limestone-gypsum wet-method flue gas desulfurization additive |
| CN102847428A (en) * | 2011-07-01 | 2013-01-02 | 湖南晟通科技集团有限公司 | Limestone-gypsum wet desulfurization additive |
| CN102847418B (en) * | 2011-07-01 | 2016-03-23 | 晟通科技集团有限公司 | A kind of wet desulfurization of flue gas by limestone-gypsum method denitration additive |
| CN102847418A (en) * | 2011-07-01 | 2013-01-02 | 湖南晟通科技集团有限公司 | Additive for limestone-gypsum wet flue gas desulfurization and denitration process |
| CN103084055A (en) * | 2011-10-30 | 2013-05-08 | 湖南晟通科技集团有限公司 | Desulphurization additive |
| CN102921282A (en) * | 2012-11-15 | 2013-02-13 | 常州大学 | Gas desulfurizing agent and preparation method thereof |
| CN103894043A (en) * | 2014-04-14 | 2014-07-02 | 山东金瑞达环保科技有限公司 | Organic amine desulfurizer for cyclically absorbing and removing SO2 from flue gas and application of organic amine desulfurizer |
| CN105180486A (en) * | 2015-08-11 | 2015-12-23 | 瓮福（集团）有限责任公司 | Method for comprehensively recycling waste heat of phosphate fertilizer plant |
| CN106807201A (en) * | 2017-02-07 | 2017-06-09 | 济南利鸿环保科技有限公司 | A kind of denitration method for flue gas of coproduction cyanuric acid |
| 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 |
| CN108126497A (en) * | 2017-12-28 | 2018-06-08 | 徐州润华环保科技有限公司 | Effect agent and its preparation method and application is proposed for the flue gas desulfurization of wet desulfurization system |
| CN108525494A (en) * | 2018-03-27 | 2018-09-14 | 昆明理工大学 | A kind of fume desulfurizing agent and application |
| CN108525494B (en) * | 2018-03-27 | 2021-04-09 | 昆明理工大学 | Flue gas desulfurizing agent and application thereof |
| CN110624364A (en) * | 2019-09-12 | 2019-12-31 | 中国石油化工股份有限公司 | Organic absorbent for removing sulfur dioxide in mixed gas and preparation method |
| CN112371038A (en) * | 2020-10-29 | 2021-02-19 | 南京霖厚环保科技有限公司 | Wet flue gas desulfurization and denitrification method |
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Application publication date: 20110525 |