CN220531230U - Organic waste gas, organic waste liquid and flue gas cooperative treatment system - Google Patents
Organic waste gas, organic waste liquid and flue gas cooperative treatment system Download PDFInfo
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- CN220531230U CN220531230U CN202420106398.6U CN202420106398U CN220531230U CN 220531230 U CN220531230 U CN 220531230U CN 202420106398 U CN202420106398 U CN 202420106398U CN 220531230 U CN220531230 U CN 220531230U
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- organic waste
- gas
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- pipeline
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- 239000010815 organic waste Substances 0.000 title claims abstract description 68
- 239000007789 gas Substances 0.000 title claims abstract description 59
- 239000007788 liquid 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 34
- 239000003546 flue gas Substances 0.000 title claims abstract description 34
- 239000007791 liquid phase Substances 0.000 claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 239000003054 catalyst Substances 0.000 claims abstract description 23
- 230000003197 catalytic effect Effects 0.000 claims abstract description 16
- 239000002826 coolant Substances 0.000 claims abstract description 14
- 239000012855 volatile organic compound Substances 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 14
- 239000000498 cooling water Substances 0.000 claims description 5
- 229910000510 noble metal Inorganic materials 0.000 claims description 3
- 239000003517 fume Substances 0.000 claims 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 34
- 238000000034 method Methods 0.000 abstract description 7
- 238000006555 catalytic reaction Methods 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 abstract description 2
- 238000009833 condensation Methods 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011278 co-treatment Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model discloses a co-processing system for organic waste gas, organic waste liquid and smoke, belonging to the technical field of atmospheric pollution treatment. The utility model comprises a condenser, a cooling medium liquid inlet pipeline and a cooling medium liquid outlet pipeline, wherein an air inlet of the condenser is connected with an organic waste gas inlet pipeline, and a liquid outlet is connected with a liquid inlet of an organic liquid phase storage tank through the organic liquid phase liquid outlet pipeline; the gas outlet of the organic liquid phase storage tank is connected with the gas inlet of the heat exchanger through a pipeline, the gas outlet of the heat exchanger is connected with the gas inlet of the heating pipe, a heating mechanism is arranged in the heating pipe, the gas outlet of the heating pipe is connected with the gas inlet of the catalytic device, a VOCs catalyst is arranged in the catalytic device, the gas outlet of the catalytic device is connected with the gas inlet of the heat exchanger II, the gas outlet of the heat exchanger II is connected with a discharge pipeline I, and the organic waste gas condensation, the organic waste gas catalysis and the SCR denitration process are combined, and the organic waste liquid condensed by the organic waste gas is used as a reducing agent to react with nitrogen oxides in the flue gas to complete the denitration process of the flue gas; meanwhile, the catalytic device is utilized to purify the organic waste gas, so that the purposes of realizing flue gas denitration and treating the organic waste liquid and purifying the organic waste gas are achieved, and the organic waste gas, the organic waste liquid and the flue gas are cooperatively treated.
Description
Technical Field
The utility model relates to the technical field of atmospheric pollution treatment, in particular to a cooperative treatment system for organic waste gas, organic waste liquid and smoke.
Background
In the field of environmental science and environmental engineering, the so-called nitrogen oxides are Nitric Oxide (NO) and nitrogen dioxide (NO 2 ) Is chemically abbreviated as NO X 。NO X Is one of the root causes of air pollution and photochemical smog generation, and the pollution caused by the root causes is global and has wide pollution hazard.
At present, with the rapid development of social economy, the atmospheric pollution is being changed from a soot type to a mixed type, the nitric acid type acid rain in local areas is highlighted, and the harm of the mixed type atmospheric pollution aggravates the original soot type pollution, so that the total loss of the social economy can definitely exceed the original estimated level.
SCR is the most mature flue gas denitration technology, which is a furnace denitration method, and the commercial operation is finished from the later stage of the sixth seventies of the 20 th century in Japan at the earliest, and is realized by using a reducing agent (NH) 3 Urea) with metal catalyst, selectively react with NO X Reaction to produce N 2 And H 2 O, not by O 2 And (5) oxidizing. The world popular SCR technology is mainly divided into ammonia SCR and urea SCR, and the two methods are to utilize ammonia to NO X Is used for reducing NO under the action of a catalyst X (mainly NO) reduction to N with little effect on the atmosphere 2 And water. SCR denitration technique denitration efficiency is high, and the operation is stable.
At present, a large amount of organic waste liquid condensed by organic waste gas, namely hydrocarbon compounds, often exists in enterprises, a large amount of dangerous waste is formed, and the treatment is troublesome. Based on this, it is conceivable to replace NH with an organic waste liquid 3 Or urea is used as a reducing agent to react with nitrogen oxides, so that the purposes of flue gas denitration and organic waste liquid treatment are achieved. Therefore, development of a co-treatment system for organic waste gas, organic waste liquid and flue gas is needed to achieve the above-mentioned objects.
Disclosure of Invention
The utility model aims to solve the technical problems that: overcomes the defects of the prior art, provides a cooperative treatment system for organic waste gas, organic waste liquid and flue gas, not only can realize flue gas denitration, but also can treat the organic waste liquid condensed by the organic waste gas, and simultaneously can purify the organic waste gas, thereby realizing the cooperative treatment of the organic waste gas, the organic waste liquid and the flue gas.
The technical scheme of the utility model is as follows:
the co-processing system for the organic waste gas, the organic waste liquid and the flue gas comprises a condenser, wherein the condenser is connected with a cooling medium liquid inlet pipeline and a cooling medium liquid outlet pipeline, an air inlet of the condenser is connected with an organic waste gas inlet pipeline, and a liquid outlet is connected with a liquid inlet of an organic liquid phase storage tank through an organic liquid phase liquid outlet pipeline; the air outlet of the organic liquid phase storage tank is connected with the air inlet I of the heat exchanger through a pipeline, the air outlet I of the heat exchanger is connected with the air inlet of the heating pipe, and a heating mechanism is arranged in the heating pipe; the air outlet of the heating pipe is connected with the air inlet of the catalytic device, a VOCs catalyst is arranged in the catalytic device, the air outlet of the catalytic device is connected with the air inlet II of the heat exchanger, and the air outlet II of the heat exchanger is connected with the discharge pipeline I; the liquid outlet of the organic liquid phase storage tank is connected with the liquid inlet of the double-fluid spray gun through a pipeline, and the air inlet of the double-fluid spray gun is connected with a compressed air pipeline; the outlet of the double-fluid spray gun stretches into an inlet flue of the SCR denitration device, the inlet flue is also connected with a flue gas pipeline, a three-way catalyst is arranged in the SCR denitration device, and an air outlet of the SCR denitration device is connected with a second discharge pipeline.
Preferably, the heating mechanism adopts an electric heater.
Preferably, a delivery pump is arranged on a pipeline between the liquid outlet of the organic liquid phase storage tank and the liquid inlet of the double-fluid spray gun.
Preferably, two layers of three-way catalysts are arranged in the SCR denitration device.
Preferably, the three-way catalyst is a noble metal catalyst.
Preferably, the cooling medium in the condenser is cooling water.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model combines the processes of organic waste gas condensation, organic waste gas catalysis and SCR denitration, and utilizes the organic waste liquid condensed by the organic waste gas as a reducing agent to react with nitrogen oxides in the flue gas so as to complete the denitration process of the flue gas; meanwhile, the catalytic device is utilized to purify the organic waste gas, so that the purposes of realizing flue gas denitration, treating the organic waste liquid and purifying the organic waste gas are achieved.
Drawings
Fig. 1 is a schematic structural diagram of a co-processing system for organic waste gas, organic waste liquid and flue gas according to the present utility model.
In the figure, 1, a condenser; 101. a cooling medium feed line; 102. a cooling medium outlet line; 103. an organic waste gas intake line; 104. an organic liquid phase liquid outlet line; 2. an organic liquid phase storage tank; 3. a heat exchanger; 4. heating pipes; 401. a heating mechanism; 5. a catalytic device; 501. VOCs catalyst; 6. a first discharge line; 7. a dual fluid spray gun; 8. a compressed air line; 9. an SCR denitration device; 901. an inlet flue; 902. a three-way catalyst; 10. a flue gas line; 11. a second discharge line; 12. and a transfer pump.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model.
Example 1
As shown in fig. 1, the embodiment provides a co-processing system for organic waste gas, organic waste liquid and flue gas, which comprises a condenser 1, wherein the condenser 1 is connected with a cooling medium inlet pipeline 101 and a cooling medium outlet pipeline 102, an air inlet of the condenser 1 is connected with an organic waste gas inlet pipeline 103, and a liquid outlet is connected with a liquid inlet of an organic liquid phase storage tank 2 through an organic liquid phase outlet pipeline 104. In this embodiment, the cooling medium in the condenser 1 adopts cooling water, the cooling water enters the condenser 1 through the cooling medium inlet line 101, the organic waste gas entering the condenser 1 from the organic waste gas inlet line 103 is cooled, the organic components are condensed, and the organic liquid phase is temporarily stored in the organic liquid phase storage tank 2.
As shown in fig. 1, an air outlet of an organic liquid phase storage tank 2 is connected with an air inlet I of a heat exchanger 3 through a pipeline, the air outlet I of the heat exchanger 3 is connected with an air inlet of a heating pipe 4, a heating mechanism 401 is arranged in the heating pipe 4, and the heating mechanism 401 adopts an electric heater; the gas outlet of heating pipe 4 is connected with the air inlet of catalytic unit 5, is provided with VOCs catalyst 501 in the catalytic unit 5, and the gas outlet of catalytic unit 5 is connected with the air inlet second of heat exchanger 3, and the gas outlet second of heat exchanger 3 is connected with discharge line first 6. The organic waste gas which is not condensed into liquid phase in the organic liquid phase storage tank 2 can be discharged after further treatment, firstly enters the heat exchanger 3 through a pipeline for preheating and heating, then enters the heating pipe 4 for further heating by the electric heater, and finally enters the catalytic device 5 for being decomposed into CO by the VOCs catalyst 501 2 And H 2 O, the heat exchange and the cooling are carried out on the organic waste gas which is discharged from the organic liquid phase storage tank 2 through the heat exchanger 3, and then the discharge reaches the standard.
Meanwhile, as shown in fig. 1, a liquid outlet of the organic liquid phase storage tank 2 is connected with a liquid inlet of the double-fluid spray gun 7 through a pipeline, and a delivery pump 12 is arranged on the pipeline; the air inlet of the double-fluid spray gun 7 is connected with a compressed air pipeline 8, the outlet of the double-fluid spray gun 7 extends into an inlet flue 901 of the SCR denitration device 9, the inlet flue 901 is also connected with a flue gas pipeline 10, two layers of three-way catalysts 902 are arranged in the SCR denitration device 9, and specifically, the three-way catalysts 902 adopt noble metal catalysts which are existing commercial products and can be purchased in the market; the gas outlet of the SCR denitration device 9 is connected with a second discharge pipeline 11. Is condensed by the condenser1, the condensed organic liquid phase is temporarily stored in an organic liquid phase storage tank 2, enters a double-fluid spray gun 7 through a delivery pump 12, is mixed with compressed air, and enters an SCR denitration device 9. Simultaneously, the flue gas also enters the SCR denitration device 9 through the flue gas pipeline 10, and under the catalysis of the three-way catalyst 902, nitrogen oxides in the flue gas react with an organic liquid phase to generate CO 2 And H 2 And O, the flue gas after denitration is discharged after reaching the standard through a second discharge pipeline 11.
Working principle:
the organic waste gas firstly enters the condenser 1, exchanges heat with cooling water for cooling, condenses organic components, flows into the organic liquid phase storage tank 2, enters the double-fluid spray gun 7 through the delivery pump 12, and enters the SCR denitration device 9 after being mixed with compressed air. The flue gas also enters an SCR denitration device 9, and under the action of a three-way catalyst 902, nitrogen oxides in the flue gas react with an organic liquid phase to generate CO 2 And H 2 And O, the flue gas after denitration is discharged after reaching the standard through a second discharge pipeline 11. The uncondensed organic waste gas can go out from the gas outlet at the top of the organic liquid phase storage tank 2, enter the heat exchanger 3 through a pipeline, firstly undergo heat exchange and temperature rise, then undergo heating by the electric heater, and then decompose into CO under the catalysis of the VOCs catalyst 501 2 And H 2 And O, finally, exchanging heat with organic waste gas from the gas outlet at the top of the organic liquid phase storage tank 2 through the heat exchanger 3, and discharging the cooled organic waste gas through a first discharge pipeline 6 after reaching the standard.
Claims (6)
1. The co-processing system for the organic waste gas, the organic waste liquid and the flue gas is characterized by comprising a condenser (1), wherein the condenser (1) is connected with a cooling medium inlet pipeline (101) and a cooling medium outlet pipeline (102), an air inlet of the condenser (1) is connected with an organic waste gas inlet pipeline (103), and an outlet is connected with a liquid inlet of an organic liquid phase storage tank (2) through an organic liquid phase outlet pipeline (104); the air outlet of the organic liquid phase storage tank (2) is connected with the air inlet I of the heat exchanger (3) through a pipeline, the air outlet I of the heat exchanger (3) is connected with the air inlet of the heating pipe (4), and the heating pipe (4) is internally provided with a heating mechanism (401); the air outlet of the heating pipe (4) is connected with the air inlet of the catalytic device (5), a VOCs catalyst (501) is arranged in the catalytic device (5), the air outlet of the catalytic device (5) is connected with the air inlet II of the heat exchanger (3), and the air outlet II of the heat exchanger (3) is connected with a discharge pipeline I (6); the liquid outlet of the organic liquid phase storage tank (2) is connected with the liquid inlet of the double-fluid spray gun (7) through a pipeline, and the air inlet of the double-fluid spray gun (7) is connected with a compressed air pipeline (8); the outlet of the double-fluid spray gun (7) stretches into an inlet flue (901) of the SCR denitration device (9), the inlet flue (901) is further connected with a flue gas pipeline (10), a three-way catalyst (902) is arranged in the SCR denitration device (9), and a gas outlet of the SCR denitration device (9) is connected with a second discharge pipeline (11).
2. The co-processing system for organic waste gas, organic waste liquid and flue gas according to claim 1, wherein the heating means (401) employs an electric heater.
3. The co-processing system of organic waste gas, organic waste liquid and flue gas according to claim 1, wherein a transfer pump (12) is arranged on a pipeline between the liquid outlet of the organic liquid phase storage tank (2) and the liquid inlet of the double fluid spray gun (7).
4. The co-processing system for organic waste gas, organic waste liquid and flue gas according to claim 1, wherein two layers of three-way catalyst (902) are arranged in the SCR denitration device (9).
5. The co-processing system for organic waste gas, organic waste liquid and flue gas according to claim 1 or 4, wherein the three-way catalyst (902) is a noble metal catalyst.
6. A co-processing system for organic waste gases, organic waste liquids and fumes according to claim 1, characterised in that the cooling medium in the condenser (1) is cooling water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420106398.6U CN220531230U (en) | 2024-01-17 | 2024-01-17 | Organic waste gas, organic waste liquid and flue gas cooperative treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420106398.6U CN220531230U (en) | 2024-01-17 | 2024-01-17 | Organic waste gas, organic waste liquid and flue gas cooperative treatment system |
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| Publication Number | Publication Date |
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| CN220531230U true CN220531230U (en) | 2024-02-27 |
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| CN202420106398.6U Active CN220531230U (en) | 2024-01-17 | 2024-01-17 | Organic waste gas, organic waste liquid and flue gas cooperative treatment system |
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| Country | Link |
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| CN (1) | CN220531230U (en) |
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