CN112915724A - Integrated removal system and method for multiple pollutants in flue gas - Google Patents
Integrated removal system and method for multiple pollutants in flue gas Download PDFInfo
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- CN112915724A CN112915724A CN202110337581.8A CN202110337581A CN112915724A CN 112915724 A CN112915724 A CN 112915724A CN 202110337581 A CN202110337581 A CN 202110337581A CN 112915724 A CN112915724 A CN 112915724A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/204—Inorganic halogen compounds
- B01D2257/2045—Hydrochloric acid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/60—Heavy metals or heavy metal compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention discloses a system and a method for integrally removing multiple pollutants in flue gas.A flue gas in a boiler passes through a primary economizer, and then one flue gas is connected to a flue gas inlet of an air preheater, and the other flue gas is connected to a flue gas inlet of a heating section of a regeneration tower; after the cold air is boosted by the blower, one path of the cold air is connected to an air inlet of the air preheater, the other path of the cold air is connected to an air inlet of a cooling section of the regeneration tower, and an air outlet of the cooling section of the regeneration tower is connected to an air outlet of the air preheater. The invention can implement multi-pollutant integrated treatment on the flue gas, fully utilizes the flue gas at the tail part of the boiler to carry out regeneration treatment on the adsorbent, and reduces the operation cost.
Description
Technical Field
The invention belongs to the technical field of flue gas pollutant treatment and purification, and particularly relates to a system and a method for integrally removing multiple pollutants in flue gas.
Background
The generation of a large amount of pollutants from coal-fired flue gas is one of important factors which harm the atmospheric environment and human health, so the research and development of a high-efficiency low-energy-consumption multi-pollutant combined control technology is the foothold and the primary task of clean and efficient utilization of coal.
At present, most of the technical routes for removing pollutants of coal-fired units are based on the transformation and upgrading of the traditional desulfurization and denitrification technology, and although the current environmental protection requirements are basically met, the problems of desulfurization wastewater treatment, denitration catalyst failure, excessive limestone exploitation, ammonia escape and secondary pollution, complex process flow, high operation cost and the like are brought. The method is limited by the process principle, and the removal efficiency of the current mainstream desulfurization and denitrification technology is difficult to further improve on the basis of the current ultralow emission, so that the near zero emission of pollutants is realized. In addition, with the increasing strictness of environmental protection requirements, pollutants such as sulfur trioxide, heavy metals and Volatile Organic Compounds (VOCs) in flue gas are expected to be gradually brought into a flue gas pollutant emission control system, and the current technology has a limited capability of removing the pollutants.
In the similar flue gas active coke combined desulfurization and denitrification process, an active coke regeneration system mostly utilizes an electric heater or a hot blast stove, and consumes electric energy or coal gas as a heat source, so that the equipment investment is increased, the system is complicated, and the running cost of the whole set of equipment is increased.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a system and a method for integrally removing multiple pollutants in flue gas.
In order to achieve the purpose, the invention adopts the following technical scheme:
an integrated removal system for multiple pollutants in flue gas comprises a boiler, an air preheater, a dust remover, a cooling tower, an adsorption tower and a regeneration tower, wherein the regeneration tower comprises a regeneration tower preheating section, a regeneration tower heating section and a regeneration tower cooling section which are sequentially arranged from top to bottom; a first-stage economizer is arranged in a flue of the boiler, a flue outlet is respectively connected to a flue gas inlet of an air preheater and a flue gas inlet of a heating section of a regeneration tower, a flue gas outlet of the heating section of the regeneration tower is connected to a flue gas inlet of the preheating section of the regeneration tower, a flue gas outlet of the preheating section of the regeneration tower is connected to a dust remover after being converged with a flue gas outlet of the air preheater, a flue gas outlet of the dust remover is connected to a flue gas inlet of a cooling tower, a flue gas outlet of the cooling tower is connected to a flue gas inlet of an adsorption tower, clean flue gas discharged from a flue gas outlet of the adsorption tower is connected to a chimney for emission, an adsorbent outlet at the bottom of the adsorption tower is connected to an adsorbent inlet of the regeneration tower, and an; the system also comprises a blower, the cold air is respectively connected to an air inlet of the cooling section of the regeneration tower and an air inlet of the air preheater through the blower, and an air outlet of the cooling section of the regeneration tower and an air outlet of the air preheater are converged and then connected to the boiler.
Further, a main flue damper is arranged between the flue outlet of the boiler and the flue gas inlet of the air preheater.
Furthermore, a regeneration flue gas regulating valve is arranged between the flue outlet of the boiler and the flue gas inlet of the heating section of the regeneration tower.
Further, a regeneration air regulating valve is arranged between the outlet of the blower and the air inlet of the cooling section of the regeneration tower.
Further, a main air damper valve is arranged between the outlet of the blower and the air inlet of the air preheater.
Furthermore, the regeneration tower preheating section, the regeneration tower heating section and the regeneration tower cooling section are of a split structure, a first cavity used for communicating the regeneration tower preheating section tube side and the regeneration tower heating section tube side is arranged between the regeneration tower preheating section and the regeneration tower heating section, and a second cavity used for communicating the regeneration tower heating section tube side and the regeneration tower cooling section tube side is arranged between the regeneration tower heating section and the regeneration tower cooling section.
Furthermore, nitrogen interfaces are arranged on the side walls of the first cavity and the second cavity.
An integrated removing method for multiple pollutants in flue gas is characterized in that the flue gas generated by a boiler furnace is cooled by a primary economizer and then divided into two paths, one path is communicated with a flue gas inlet of an air preheater, the other path is communicated with a flue gas inlet of a heating section of a regeneration tower, a flue gas outlet pipeline of the heating section of the regeneration tower is communicated with a flue gas inlet pipeline of the preheating section of the regeneration tower, a flue gas outlet pipeline of the preheating section of the regeneration tower is communicated with a flue gas outlet pipeline of the air preheater, two paths of cooled flue gas are collected and then dedusted, the dedusted flue gas enters a cooling tower to be cooled, the cooled flue gas enters an adsorption tower to be adsorbed and removed, the purified flue gas discharged from a flue gas outlet of the adsorption tower is discharged from a chimney, an adsorbent of the adsorption tower enters the regeneration tower to be regenerated and then returns to the adsorption tower, in addition, the cold air from the atmospheric environment is boosted, the other path is communicated with an air inlet of a cooling section of the regeneration tower, an air outlet of the cooling section of the regeneration tower is communicated with a hot air outlet pipeline of the air preheater, and the two paths of air are converged and then enter a boiler for use.
Furthermore, a main flue damper is arranged between a flue outlet of the boiler and a flue gas inlet of the air preheater, a regeneration flue gas adjusting valve is arranged between the flue outlet of the boiler and a flue gas inlet of the heating section of the regeneration tower, a regeneration air adjusting valve is arranged between an outlet of the air blower and an air inlet of the cooling section of the regeneration tower, a main air damper is arranged between an outlet of the air blower and an air inlet of the air preheater, and the amount of regeneration flue gas to the heating section of the regeneration tower is adjusted by the matching of the main flue damper and the regeneration flue gas adjusting valve; the cooling air quantity going to the cooling section of the regeneration tower is adjusted by matching a main air baffle valve and a regeneration air adjusting valve.
Further, in the using process, the heating section and the preheating section of the regeneration tower regularly use compressed air to perform back flushing and ash removal.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention is suitable for the treatment of smoke pollutants of coal-fired power plants and the like, the smoke gas from a primary economizer of a boiler is divided into two paths, one path enters an air preheater to heat the air, the other path enters a heating section of a regeneration tower to heat and regenerate an adsorbent, and the temperature of the smoke gas at the heating section is more than 350 ℃ and is just in an ideal regeneration temperature range of the adsorbent, the invention adopts the procedures of dust removal, cooling, adsorption and purification and the like to carry out multi-pollutant integrated treatment on the smoke gas, fully utilizes the smoke gas at the tail part of the boiler to carry out regeneration treatment on the adsorbent, does not need to be additionally provided with equipment such as an electric heater or a hot blast stove and the like, thereby reducing the consumption of plant electric energy or the consumption of coal gas, has simple system and low operation cost, the cold air in the atmospheric environment is divided into two paths after being boosted by a blower, one path is directly sent to the air preheater to, the hot air from the cooling section of the regeneration tower and the hot air from the air preheater are merged into one path and then are used by a boiler.
Furthermore, the flue gas coming out of the air preheater and the flue gas coming out of the preheating section of the regeneration tower are combined into a path and then enter a dust remover for dust removal, the flue gas after dust removal enters a cooling tower for deep temperature reduction and then enters an adsorption tower for purification, and the clean flue gas is sent into a chimney for emission.
Furthermore, different sections of the regeneration tower are not directly communicated but disconnected, and are provided with nitrogen interfaces, and nitrogen is introduced into the adsorbent bed layer for protection when necessary, so that accidents caused by bed layer temperature runaway due to oxygen leakage are avoided.
Furthermore, the amount of the regeneration flue gas required by the heating section of the regeneration tower is adjusted by matching a damper valve of the main flue and a damper valve of the regeneration flue gas; the cooling air quantity required by the cooling section of the regeneration tower is adjusted by matching a main air baffle valve and a regeneration air adjusting valve.
In addition, the heating section and the preheating section of the regeneration tower can regularly use compressed air for back flushing so as to avoid the influence on the regeneration efficiency caused by the dust deposition on the heat exchange surface.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic view of an integrated removal system for multiple pollutants in flue gas according to the present invention.
Wherein, 1, a boiler; 2. a first-stage economizer; 3. an air preheater; 4. a regeneration tower; 5. a main flue flapper valve; 6. a preheating section of the regeneration tower; 7. a blower; 8. a primary air flapper valve; 9. a regenerative air regulating valve; 10. a regenerated flue gas regulating valve; 11. a regeneration tower heating section; 12. a regeneration tower cooling section; 13. a dust remover; 14. a cooling tower; 15. an adsorption tower.
Detailed Description
Embodiments of the invention are described in further detail below:
as shown in fig. 1, the integrated flue gas multi-pollutant removal system comprises a boiler 1, a primary economizer 2, an air preheater 3, a regeneration tower 4, a main flue damper 5, a regeneration tower preheating section 6, a blower 7, a main air damper 8, a regeneration air regulating valve 9, a regeneration flue gas regulating valve 10, a regeneration tower heating section 11, a regeneration tower cooling section 12, a dust remover 13, a cooling tower 14 and an adsorption tower 15.
The flue gas that boiler 1 furnace produced is divided into two the tunnel after 2 cooling through one-level economizer, be connected to air heater 3's flue gas entry through main flue flapper valve 5 all the way, be connected to regeneration tower heating section 11's flue gas entry through regeneration flue gas governing valve 10 all the way, regeneration tower heating section 11's flue gas outlet pipeline is connected to regeneration tower preheating section 6's flue gas entry, regeneration tower preheating section 6's flue gas outlet pipeline is connected to air heater 3's flue gas outlet, two strands of flue gas after the cooling are gathered and are connected to dust remover 13's flue gas entry, dust remover 13's flue gas outlet is connected to cooling tower 14's flue gas entry, cooling tower 14's flue gas outlet is connected to adsorption tower 15's flue gas entry, the clean flue gas that the flue gas export of adsorption tower 15 came out sends the chimney and discharges.
The adsorbent outlet at the bottom of the adsorption tower 15 is connected to the adsorbent inlet of the regeneration tower 4, and the adsorbent outlet at the bottom of the regeneration tower 4 is connected to the adsorbent inlet at the top of the adsorption tower 15, so that the circulating movement of the adsorbent is formed.
The regeneration tower 4 adopts an indirect heat exchange mode, the adsorbent moves on a tube pass at a certain flow speed, corresponding heat exchange smoke or air flows on a shell pass, and the preheating section 6, the heating section 11 and the cooling section 12 of the regeneration tower are disconnected and provided with a protective nitrogen interface.
The regeneration tower heating section 11 and the regeneration tower preheating section 6 can regularly use compressed air to perform back flushing and ash removal;
the cold air from the atmospheric environment is boosted by a blower 7 and then divided into two paths, one path is connected to an air inlet of the air preheater 3 through a main air baffle valve 8, the other path is connected to an air inlet of a cooling section 12 of the regeneration tower through a regeneration air regulating valve 9, an air outlet of the cooling section 12 of the regeneration tower is connected to a hot air outlet pipeline of the air preheater 3, and the two paths of air are converged and then are used by a boiler.
The amount of the regeneration flue gas required by the heating section 11 of the regeneration tower is adjusted by the cooperation of the damper valve 5 of the main flue and the damper valve 10 of the regeneration flue gas; the amount of cooling air required by the regeneration tower cooling section 12 is adjusted by the cooperation of the main air damper valve 8 and the regeneration air regulating valve 9.
The invention can integrally remove SOx, NOx, HCl, heavy metals, VOCs and other pollutants, and can realize near zero emission; the operation cost is low, the consumption of materials such as limestone, ammonia and the like is avoided, and the flue gas water recovery and the pollutant resource utilization can be realized; the secondary pollutant discharge is less, no desulfurization waste water is generated, and the problems of solid waste of the catalyst, ammonia escape and the like do not exist; the technology is the most comprehensive near-zero emission technology for integrated removal at present, and can be widely applied to flue gas treatment of coal-fired power plants and occasions where pollutants such as waste incineration and industrial furnaces and kilns are difficult to effectively treat.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The integrated removal system for the multiple pollutants in the flue gas is characterized by comprising a boiler (1), an air preheater (3), a dust remover (13), a cooling tower (14), an adsorption tower (15) and a regeneration tower (4), wherein the regeneration tower (4) comprises a regeneration tower preheating section (6), a regeneration tower heating section (11) and a regeneration tower cooling section (12) which are sequentially arranged from top to bottom; a primary economizer (2) is arranged in a flue of the boiler (1), a flue outlet is respectively connected to a flue gas inlet of an air preheater (3) and a flue gas inlet of a regeneration tower heating section (11), a flue gas outlet of the regeneration tower heating section (11) is connected to a flue gas inlet of a regeneration tower preheating section (6), a flue gas outlet of the regeneration tower preheating section (6) and a flue gas outlet of the air preheater (3) are converged and then connected to a dust remover (13), a flue gas outlet of the dust remover (13) is connected to a flue gas inlet of a cooling tower (14), a flue gas outlet of the cooling tower (14) is connected to a flue gas inlet of an adsorption tower (15), clean flue gas discharged from a flue gas outlet of the adsorption tower (15) is connected to a chimney for emission, an adsorbent outlet at the bottom of the adsorption tower (15) is connected to an adsorbent inlet of the regeneration tower (4), and an adsorbent outlet of the regeneration tower (4) is connected to an adsorbent inlet of the adsorption tower (15); the system is characterized by further comprising a blower (7), cold air is connected to an air inlet of the regeneration tower cooling section (12) and an air inlet of the air preheater (3) through the blower (7), and an air outlet of the regeneration tower cooling section (12) and an air outlet of the air preheater (3) are connected to the boiler (1) after being converged.
2. The integrated flue gas multi-pollutant removal system of claim 1, wherein a main flue damper (5) is arranged between the flue outlet of the boiler (1) and the flue gas inlet of the air preheater (3).
3. The integrated flue gas multi-pollutant removal system according to claim 1, wherein a regeneration flue gas regulating valve (10) is arranged between the flue outlet of the boiler (1) and the flue gas inlet of the regeneration tower heating section (11).
4. The integrated flue gas multi-pollutant removal system according to claim 1, wherein a regeneration air regulating valve (9) is arranged between the outlet of the blower (7) and the air inlet of the cooling section (12) of the regeneration tower.
5. The integrated flue gas multi-pollutant removal system of claim 1, wherein a main air damper (8) is arranged between the outlet of the blower (7) and the air inlet of the air preheater (3).
6. The integrated flue gas multi-pollutant removal system according to claim 1, wherein the regeneration tower preheating section (6), the regeneration tower heating section (11) and the regeneration tower cooling section (12) are of a split structure, a first cavity for communicating the regeneration tower preheating section tube side with the regeneration tower heating section tube side is arranged between the regeneration tower preheating section (6) and the regeneration tower heating section (11), and a second cavity for communicating the regeneration tower heating section tube side with the regeneration tower cooling section tube side is arranged between the regeneration tower heating section (11) and the regeneration tower cooling section (12).
7. The integrated flue gas multi-pollutant removal system according to claim 6, wherein nitrogen interfaces are arranged on the side walls of the first cavity and the second cavity.
8. The integrated removal method of multiple pollutants in flue gas is characterized in that the flue gas generated by a hearth of a boiler (1) is cooled by a primary economizer (2) and then divided into two paths, one path is communicated with a flue gas inlet of an air preheater (3), the other path is communicated with a flue gas inlet of a heating section (11) of a regeneration tower, a flue gas outlet pipeline of the heating section (11) of the regeneration tower is communicated with a flue gas inlet pipeline of a preheating section (6) of the regeneration tower, a flue gas outlet pipeline of the preheating section (6) of the regeneration tower is communicated with a flue gas outlet pipeline of the air preheater (3), two paths of cooled flue gas are collected and then dedusted, the dedusted flue gas enters a cooling tower (14) for cooling, the cooled flue gas enters an adsorption tower (15) for adsorption and removal, and the clean flue gas discharged from a flue gas outlet of the adsorption tower (15) is discharged from a chimney, the adsorbent of adsorption tower (15) gets back to adsorption tower (15) after getting into regeneration tower (4) regeneration, and the cold air that comes from the atmospheric environment in addition divides into two the tunnel after air-blower (7) steps up, and one way is communicated with the air inlet of air heater (3), and another way and the air inlet of regeneration tower cooling zone (12) communicate, and the air outlet of regeneration tower cooling zone (12) and the hot-air outlet pipeline intercommunication of air heater (3), and two strands of air join the back and go the boiler and use.
9. The integrated flue gas multi-pollutant removal method according to claim 1, characterized in that a main flue damper (5) is arranged between the flue outlet of the boiler (1) and the flue gas inlet of the air preheater (3), a regeneration flue gas regulating valve (10) is arranged between the flue outlet of the boiler (1) and the flue gas inlet of the regeneration tower heating section (11), a regeneration air regulating valve (9) is arranged between the outlet of the blower (7) and the air inlet of the regeneration tower cooling section (12), a main air damper (8) is arranged between the outlet of the blower (7) and the air inlet of the air preheater (3), and the amount of regeneration flue gas to the regeneration tower heating section (11) is adjusted by the cooperation of the main flue damper (5) and the regeneration flue gas regulating valve (10); the cooling air quantity going to the cooling section (12) of the regeneration tower is adjusted by matching a main air baffle valve (8) and a regeneration air adjusting valve (9).
10. The integrated flue gas multi-pollutant removal method according to claim 1, wherein during use, the regeneration tower heating section (11) and the regeneration tower preheating section (6) are periodically subjected to blowback ash removal by using compressed air.
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| CN202110337581.8A CN112915724A (en) | 2021-03-29 | 2021-03-29 | Integrated removal system and method for multiple pollutants in flue gas |
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| CN202110337581.8A CN112915724A (en) | 2021-03-29 | 2021-03-29 | Integrated removal system and method for multiple pollutants in flue gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022033512A1 (en) * | 2020-08-14 | 2022-02-17 | 中国华能集团清洁能源技术研究院有限公司 | Near-zero emission type flue gas multi-pollutant integrated removal system and method |
| WO2023050700A1 (en) * | 2021-09-28 | 2023-04-06 | 中国华能集团清洁能源技术研究院有限公司 | Low-temperature desulfurization and denitrification method and system for flue gas of cement plant |
| WO2023050895A1 (en) * | 2021-09-28 | 2023-04-06 | 中国华能集团清洁能源技术研究院有限公司 | Low-temperature desulfurization and denitrification system for flue gas of sintering machine of steel mill |
-
2021
- 2021-03-29 CN CN202110337581.8A patent/CN112915724A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022033512A1 (en) * | 2020-08-14 | 2022-02-17 | 中国华能集团清洁能源技术研究院有限公司 | Near-zero emission type flue gas multi-pollutant integrated removal system and method |
| WO2023050700A1 (en) * | 2021-09-28 | 2023-04-06 | 中国华能集团清洁能源技术研究院有限公司 | Low-temperature desulfurization and denitrification method and system for flue gas of cement plant |
| WO2023050895A1 (en) * | 2021-09-28 | 2023-04-06 | 中国华能集团清洁能源技术研究院有限公司 | Low-temperature desulfurization and denitrification system for flue gas of sintering machine of steel mill |
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