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WO2002002210A1 - Pulverisateur pour melange d'eau et d'ammonium et dispositif de desulfuration de gaz d'echappement - Google Patents

Pulverisateur pour melange d'eau et d'ammonium et dispositif de desulfuration de gaz d'echappement Download PDF

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Publication number
WO2002002210A1
WO2002002210A1 PCT/JP2001/005643 JP0105643W WO0202210A1 WO 2002002210 A1 WO2002002210 A1 WO 2002002210A1 JP 0105643 W JP0105643 W JP 0105643W WO 0202210 A1 WO0202210 A1 WO 0202210A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
ammonia
mixing
compressed air
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2001/005643
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English (en)
Japanese (ja)
Inventor
Masahiro Izutsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebara Corp
Original Assignee
Ebara Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ebara Corp filed Critical Ebara Corp
Priority to AU2001269429A priority Critical patent/AU2001269429A1/en
Publication of WO2002002210A1 publication Critical patent/WO2002002210A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
    • B05B7/0475—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber with means for deflecting the peripheral gas flow towards the central liquid flow
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0433—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of gas surrounded by an external conduit of liquid upstream the mixing chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • B05B15/658—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits the spraying apparatus or its outlet axis being perpendicular to the flow conduit

Definitions

  • the present invention relates to an apparatus for mixing and spraying water and ammonia, and more particularly to an apparatus for mixing ammonia gas, air and water to remove sulfur oxides in exhaust gas and spraying the mixture into exhaust gas, and the apparatus.
  • Exhaust gas desulfurization equipment Technical background
  • ammonia injection type desulfurization method In order to remove sulfur oxides in the exhaust gas, an ammonia injection type desulfurization method has been developed in which ammonia is injected into the exhaust gas, and the sulfur oxides in the exhaust gas are reacted with ammonia to remove the sulfur oxides.
  • ammonia compound and the particulates of the ammonia compound generated by the reaction of sulfur oxide adhere to the ammonia inlet as solids, and the inlet is blocked.
  • the present invention seeks to solve such a problem in the ammonia injection type desulfurization method based on the technical background described below.
  • the efficiency of removing sulfur oxides tends to be higher at low temperature conditions when the exhaust gas is cooled.
  • the exhaust gas is cooled by a water-spray-type cooling tower, guided to the reactor, and ammonia is injected at the reactor inlet, and the sulfur oxide concentration is high.
  • the temperature rise of the gas due to the heat of reaction of the sulfur oxides cannot be ignored.To suppress this, it is necessary to install a water spray nozzle in the reactor and spray water to suppress the gas temperature rise. Done.
  • ammonia compounds formed by reacting with sulfur oxides have the property of being easily soluble in water.
  • method (1) requires a large-scale device to produce ammonia water by mixing ammonia and water.To store the produced ammonia water, an ammonia water storage tank is required separately from the ammonia storage tank. And the installation space becomes large. In addition, it becomes difficult to independently control the amounts of ammonia and water to be injected according to the temperature of the exhaust gas to be treated and the concentration of sulfur oxides. Further, when water contains a relatively high concentration of hardness components such as calcium ions and magnesium ions, when the ammonia gas is mixed with the water, the pH of the water increases, whereby the hardness components are precipitated. As a result, scaling may occur, and the piping from the ammonia water storage tank to the injection port may be closed.
  • hardness components such as calcium ions and magnesium ions
  • the carbon dioxide gas in the air reacts with water vapor and ammonia to produce solids such as ammonium hydrogencarbonate or powdery particles such as ammonium carbonate.
  • solids such as ammonium hydrogencarbonate or powdery particles such as ammonium carbonate.
  • the reactor is surrounded by a shielding building to shield X-rays generated by the electron beam irradiation. Therefore, the mixed gas piping tends to be long, and if such a mixed gas piping is generally blocked, its recovery becomes difficult.
  • An object of the present invention is to provide a spray nozzle (spraying device) having a simple structure and having no risk of clogging with an ammonia compound, and an exhaust gas desulfurization device using the same, in consideration of the above points.
  • the present invention provides a flow path for separately supplying ammonia gas, compressed air, and water, and receives ammonia gas, air, and water supplied from the outlet of the flow path, and mixes them.
  • a water / ammonia mixing / spraying device comprising: a mixing chamber for generating the mixture; and a spray port for spraying a gas-liquid mixed fluid mixed in the mixing chamber.
  • This spraying device can avoid the above-described problems of the conventional device in which ammonia gas is preliminarily mixed with water or compressed air.
  • the spraying port into which ammonia gas is injected always mixes with ammonia gas. Since the water droplets atomized by the water flow, even if an ammonia compound adheres to the spray port, the ammonia compound is washed and removed by the water droplets.
  • One different form of water / ammonia spraying device is a system for separately supplying ammonia gas, compressed air, and water, and water and compressed air supplied from outlets of the water and compressed air channels.
  • a first mixing chamber for receiving and causing the mixing thereof, an injection port for injecting the hydrous compressed air mixed in the mixing chamber (that is, compressed air containing atomized water droplets), and
  • a second mixing chamber that receives the injected compressed water and the ammonia gas supplied from the outlet of the ammonia gas flow path and generates a mixture thereof; an ammonia gas and a water-containing compressed air from the second mixing chamber; And a spray port for spraying a mixed fluid of air to the outside.
  • This device also has the same effect as the first device described above, that is, the ammonia is injected into the ammonia inlet. Even if solids such as powdery particles of the Ny compound adhere, the effect of dissolving and removing the moisture simultaneously ejected from the inlet can be obtained.
  • a collision body with which the received compressed water containing air collides in the second mixing chamber water droplets of the compressed water containing water can be further reduced.
  • a flow path for separately supplying ammonia gas, compressed air, and water, and water and ammonia gas supplied from the outlet of the water and ammonia gas flow paths to receive water and ammonia gas A first mixing chamber for producing a mixture of: an ammonia gas / water mixed fluid that is mixed in the mixing chamber; an ammonia gas / water mixed fluid ejected from the injection port; A second mixing chamber for receiving the compressed gas supplied from the outlet of the flow path to generate a mixture of the two; and a mixed fluid of the ammonia gas / water mixed fluid and the compressed gas from the second mixing chamber to the outside.
  • a spray port for spraying may be provided. In this device, the same effect as the above device can be obtained.
  • a collision body with which the received ammonia gas / water mixed fluid collides can be provided.
  • a water / ammonia mixing / spraying apparatus for mixing and spraying ammonia gas, compressed air, and water, wherein the ammonia gas, the compressed air, and the water are supplied separately.
  • a mixing chamber for receiving the water and the compressed air supplied from the outlet of the flow path of the water and the compressed air to generate a mixture thereof, and mixing the water-containing compressed air mixed in the mixing chamber with the water / ammonia mixing and spraying device
  • An ammonia gas outlet (hereinafter referred to as an “ammonia gas outlet”) for injecting the ammonia gas toward the outside of the water / ammonia mixture spraying device.
  • the outlet of the water-containing compressed air is directed so that the water-containing compressed air is discharged therefrom, near the ammonia gas outlet, and the ammonia discharged from the outlet.
  • a water-ammonia gas mixture spraying device being characterized in that so as to cause mixing of the water-containing compressed air and ammonia gas.
  • the water-containing compressed air intersects and mixes with the ammonia gas ejected from the outlet, so that water droplets contained in the water-containing compressed air wash the ammonia gas outlet, and the ammonia gas is supplied to the outlet. Prevents solids such as compound powders from adhering. This water drop can be used without touching the ammonia outlet directly.
  • the present invention further provides an exhaust gas desulfurization device provided with the water / ammonia mixture spray device as described above.
  • FIG. 1 (a) is a cross-sectional view showing an example of a spray nozzle as a water / ammonia mixed spray device of the present invention
  • Fig. 1 (b) is a sectional view taken along line A-A of (a).
  • FIG. 2 is a cross-sectional view showing another example of the spray nozzle as the water / ammonia mixture spray device of the present invention.
  • FIGS. 3 (a) and 3 (b) are cross-sectional views each showing another example of a spray nozzle as a water / ammonia mixed spray device of the present invention.
  • FIG. 4 is a cross-sectional view showing a spray nozzle as a further different water / ammonia mixed spray device of the present invention.
  • FIG. 5 (a) is a cross-sectional view showing another example of a spray nozzle header portion as a water / ammonia mixed spray device of the present invention
  • 5 (b) and 5 (c) are enlarged cross-sectional views of the two-fluid spray nozzle used in FIG. 5 (a). ⁇
  • FIG. 6 is a flowchart showing an example of the flue gas desulfurization apparatus of the present invention.
  • FIG. 7 is a flowchart showing another example of the flue gas desulfurization apparatus of the present invention. Preferred embodiments of the invention
  • FIG. 1 (a) is a cross-sectional view showing an example of a spray nozzle 1 of the water / ammonia mixing and spraying device according to the present invention
  • FIG. 1 (b) is a cross-sectional view taken along line AA of (a).
  • the spray nozzle 1 the ammonia gas 11, water 12, and compressed air 13 pass through separate flow paths 2, 3, and 4, respectively, and the outlets 5, 6, and It is supplied from 7 to the ammonia gas / water / compressed air mixing area or mixing chamber 8 where it is mixed and sprayed outside.
  • FIG. 1 (a) is a cross-sectional view showing an example of a spray nozzle 1 of the water / ammonia mixing and spraying device according to the present invention
  • FIG. 1 (b) is a cross-sectional view taken along line AA of (a).
  • the ammonia gas 11, water 12, and compressed air 13 pass through separate flow paths 2, 3, and 4, respectively, and the outlets 5, 6, and It is supplied from 7 to the ammonia gas / water / compressed
  • the spray nozzle 1 is provided so as to extend diametrically in inner and outer pipes arranged concentrically and in an annular space between the two pipes.
  • the flow paths 2, 3, and 4 are defined by them, and the inside of the pipe is defined so that the tip of the outer pipe defines the gas-liquid mixing area 8.
  • a spray port 9 is provided at the center of the tip wall extending forward of the pipe.
  • the ammonia gas 11, the water 12, and the compressed air 13 are supplied to the gas-liquid mixing region 8 from separate flow paths 2, 3, and 4 and mixed with each other, and in the mixing region 8, A portion of the ammonia gas 11 is dissolved in water 12 to form ammonia water, and the ammonia water is atomized by compressed air 13 to form droplets of ammonia water, and the remaining ammonia gas not dissolved in the water Is sprayed together with the spray port 9. Even if the ammonia gas reacts with the sulfur oxide at the spray port 9 to form and adhere to solids such as ammonia compound powder, they are simultaneously dissolved in the sprayed ammonia water droplets. The spray port is not clogged.
  • FIG. 2 is a cross-sectional view showing another example of the spray nozzle 1 as the water / ammonia mixed spray device according to the present invention.
  • ammonia gas 11, water 12, and compressed air 13 flow through concentric separate flow paths 2, 3, and 4 formed by concentrically arranged pipes.
  • water 12 and compressed air 13 are supplied to the mortar-shaped compressed air-water mixing area or mixing chamber 14 from outlets 6 and 7 at their ends, and contain water mixed and atomized. It is made into wet compressed air.
  • the water-containing compressed air is supplied to the next compressed air / water / ammonia gas mixing area or mixing chamber 15 through the injection port 20 and mixed with the ammonia gas 11, and then sprayed from the spray port 9. You. At this time, a small amount of ammonia gas dissolves in water droplets, and the water droplets become relatively low-concentration ammonia water droplets.
  • FIGS. 3 (a) and 3 (b) show another example of the spray nozzle 1 as the water / ammonia mixing and spraying apparatus of the present invention.
  • the ammonia gas 11, water 12, and compressed air 13 flow through concentric pipes 2, 3, and 4, respectively, by concentrically arranged pipes.
  • water 12 and compressed air 13 are supplied from outlets 6 and 7 of channels 3 and 4 to a mortar-shaped compressed air / water mixing area 14 where they are mixed and refined. It is made into water-containing compressed air containing water and collides with the colliding body 16 through the injection port 20 to further reduce water particles.
  • the compressed air / water / ammonia gas mixing area or the mixing chamber 15 Is mixed with the ammonia gas 11 from the outlet 5 of the flow path 2 and sprayed from the spray port 9.
  • a small amount of ammonia gas dissolves in water droplets, and the water droplets become droplets of ammonia water having a relatively low concentration.
  • ammonia gas 11 and water 12 are mixed in the ammonia gas-water mixing region or mixing chamber 17.
  • the pressure of the ammonia gas is set to about 0.1 MPa or more, the ammonia gas is dissolved to a large extent in water, and is atomized to some extent by the pressure of the remaining ammonia gas.
  • the atomized ammonia water passes through the injection port 20 ′, collides with the collision body 16, and is further atomized.
  • the ammonia gas / water / compressed air mixing area 18 exits the flow path 4 at the outlet 7. After being further atomized by being mixed with the compressed air 13 from the air, it is sprayed from the spray port 9.
  • FIG. 4 is a cross-sectional view showing still another example of the spray nozzle 1 as the water / ammonia mixed spray device according to the present invention.
  • ammonia gas 11, water 12, and compressed air 13 flow through concentric separate flow paths 2, 3, 4 formed by concentrically arranged pipes, respectively.
  • 1 2 and the compressed air 13 are supplied to the compressed air / water mixing area 14 on the extension of the end of the flow path 3 at the outlets 6 and 7 at the end of the flow path, and are mixed and atomized.
  • Compressed air containing water The hydrous compressed air is ejected obliquely outward in the radial direction from the tip of the spray nozzle via the ejection port 20.
  • the ammonia gas 11 passes through the passage 2, reaches the tip of the spray nozzle, and extends obliquely inward in the radial direction from the outlet 5 of the flow passage 2 located radially outward from the injection port 20. It is injected and collides with water-containing compressed air injected from the injection port 20. That is, in this spray nozzle, the compressed air / water / ammonia gas mixed region 15 is located near the outer periphery of the tip of the spray nozzle. If this spray nozzle is installed in a duct through which exhaust gas passes, it is possible that sulfur oxides etc. in the exhaust gas and solids generated by ammonia gas may adhere to the outlet 5 of the ammonia gas.
  • FIG. 5 (a) is a cross-sectional view of a spray header portion 1 'provided with a plurality of spray nozzles 19 as a water / ammonia mixture spray device of the present invention.
  • ammonia gas 11, water 12, and compressed air 13 flow through the respective channels 2, 3, and 4 formed in the spray nozzle header 1 'forming a triple tube.
  • the compressed air 13 and the water 12 pass through the nozzle 19 to become hydrous compressed air containing atomized water droplets, and are ejected from the tip of the nozzle 19.
  • the tip of each nozzle is aligned with a plurality of spray ports 9 communicating with the ammonia gas flow path 2, and the water-containing compressed air ejected from the nozzle tips is mixed with ammonia gas and sprayed from the spray ports 9. It is.
  • a small amount of ammonia gas dissolves in the water droplet, and the water droplet becomes a relatively low concentration ammonia water droplet.
  • this spray nozzle is installed in a duct, solid matter generated by sulfur oxides and ammonia gas in the exhaust gas may adhere to the spray port 9 if installed in a duct. Injected wet compression Dissolved by water droplets in the air and washed. Even if the water droplets do not directly collide with the spray port 9, but only pass by the spray port, solids such as ammonium compound particles absorb the moisture in the hydrous compressed air (moisture absorption). This facilitates peeling, and as a result, an effect of reducing the adhesion of solids such as ammonia compound powders can be obtained.
  • FIG. 5 (b) is an enlarged cross-sectional view of the spray nozzle 19 shown in FIG. 5 (a), and is connected to the spray nozzle header 1 'by a nozzle connector shown in FIG. 5 (c). That is, the nozzle connector has flow paths 3 ′ and 4 ′ through which water and compressed air pass, and is connected and fixed to the spray nozzle so that the flow paths are connected to the flow paths 3 and 4, respectively.
  • the female screw portion of the spray nozzle 19 is screwed to a male screw portion provided at the tip of the nozzle connector.
  • the mixing of the compressed water with water and the ammonia gas, or the mixing of the mixed gas of ammonia gas and water and the compressed air is caused inside and / or outside the spray nozzle. I have.
  • FIG. 6 is a flowchart showing an example of the exhaust gas desulfurization apparatus of the present invention.
  • the exhaust gas containing sulfur oxides that has exited the poirer 21 is cooled by indirectly exchanging heat with the cooling water in the heat exchanger 22, and is guided to the gas cooling tower 23.
  • the industrial water supplied from the industrial water storage tank 24 is sprayed and cooled, and guided to the reactor 25.
  • a water / ammonia mixing / spraying device 26 in the form of a spray nozzle according to the present invention for spraying water and ammonia for mixing is installed, and industrial water supplied from an industrial water storage tank 24, The ammonia gas supplied from the ammonia storage tank 29 and the compressed air supplied from the air compressor 30 are sprayed into the exhaust gas for mixing.
  • the exhaust gas is irradiated with an electron beam by an electron accelerator 27, and the sulfur oxides in the exhaust gas are converted into a powder of an ammonium compound containing ammonium sulfate as a main component.
  • Exhaust gas containing the powder is guided to an electrostatic precipitator 28, and the powder is recovered and then injected into the atmosphere.
  • FIG. 7 is a flowchart illustrating another example of the exhaust gas desulfurization apparatus according to the present invention.
  • the device in Fig. 7 is basically the same as the exhaust gas desulfurization device in Fig. 6, but the gas cooling tower A part of the water sprayed in 23 is converted to drainage without evaporating and stored in a drainage storage tank 31. Instead of industrial water, the wastewater is sprayed and injected by a water-ammonia mixing sprayer 26. Different from six.
  • wastewater generated from the gas cooling tower 23 contains dust such as fly ash originally contained in exhaust gas, and hardness components such as calcium and magnesium are eluted from the dust. Tend to increase the concentration of the hardness component.
  • the water / ammonia mixing and spraying device 26 as shown in Fig. 4, a device that mixes ammonia gas and water-containing compressed air in a mixing region outside the device is employed. This makes it possible to avoid the occurrence of scaling inside the device.
  • the present invention can be effectively used for desulfurization of industrial exhaust gas and the like.
  • ammonia gas is injected into exhaust gas containing high concentration of sulfur oxides for desulfurization.
  • ammonia gas reacts with sulfur oxides in the exhaust gas and the like.
  • a solid product was produced and adhered to the injection nozzle of the ammonia gas, and the flow path of the nozzle was blocked.
  • such a blockage was prevented by a relatively simple mixing method.
  • the spray structure can greatly reduce the amount of exhaust gas, and enables efficient exhaust gas desulfurization.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)

Abstract

L'invention concerne un pulvérisateur de construction relativement simple, qui, lorsque l'ammonium doit être injecté dans des gaz d'échappement, réduit fortement le risque qu'un orifice d'injection d'ammonium soit bouché par un composé d'ammonium issu de la réaction de l'ammonium avec des oxydes de soufre dans les gaz d'échappement. L'invention concerne également un dispositif de désulfuration de gaz d'échappement faisant intervenir ledit pulvérisateur. De l'ammonium (11), de l'eau (12) et de l'air (13) sont introduits par des canaux d'écoulement séparés (2, 3, 4) et sont mélangés dans la partie intérieure de l'extrémité avant du pulvérisateur et/ou à l'extérieur, puis éjectés. Dans un orifice d'éjection (5, 9) à travers lequel l'ammonium est finalement éjecté hors du pulvérisateur, l'eau utilisée passe soit par l'orifice d'éjection, soit à proximité de l'orifice d'éjection. L'action de l'eau fait partir les produits de réaction, même s'ils adhèrent à l'orifice d'éjection.
PCT/JP2001/005643 2000-06-30 2001-06-29 Pulverisateur pour melange d'eau et d'ammonium et dispositif de desulfuration de gaz d'echappement Ceased WO2002002210A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001269429A AU2001269429A1 (en) 2000-06-30 2001-06-29 Water-ammonia mixture sprayer and exhaust gas desulfurizer using the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000-197717 2000-06-30
JP2000197717 2000-06-30

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WO2002002210A1 true WO2002002210A1 (fr) 2002-01-10

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102168852A (zh) * 2010-12-23 2011-08-31 北京机电院高技术股份有限公司 一种降低垃圾焚烧烟气中氮氧化物排放限值的方法及装置
JP4808970B2 (ja) * 2002-12-30 2011-11-02 ネクター セラピューティクス 噴霧乾燥システム
JP2013530042A (ja) * 2010-06-14 2013-07-25 ダウ グローバル テクノロジーズ エルエルシー 静的反応性ジェットミキサ、および、アミン−ホスゲン混合プロセスの間に混合する方法
CN103657385A (zh) * 2012-09-10 2014-03-26 杨建华 Sncr脱硝系统用双雾化喷枪
KR101582958B1 (ko) * 2015-07-28 2016-01-06 (주)에스디메카텍 플렉시블 이류체 분사노즐
WO2017040314A1 (fr) 2015-08-28 2017-03-09 Regents Of The University Of Minnesota Buses et procédés de mélange d'écoulements de fluide
WO2018028807A1 (fr) * 2016-08-11 2018-02-15 Krueger Joerg Système de conduites de fluide et procédé correspondant
WO2018069331A1 (fr) * 2016-10-10 2018-04-19 Ingeniatrics Tecnologías, S.L. Appareil et procédé de mélange d'au moins deux liquides
WO2023228634A1 (fr) * 2022-05-25 2023-11-30 パナソニックＩｐマネジメント株式会社 Dispositif d'atomisation
US11872583B2 (en) 2018-06-14 2024-01-16 Regents Of The University Of Minnesota Counterflow mixer and atomizer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5326258A (en) * 1976-08-24 1978-03-10 Ishikawajima Harima Heavy Ind Co Ltd Denitrating method of spraying type
EP0716873A1 (fr) * 1994-12-12 1996-06-19 Ebara Corporation Méthode et dispositif pour le traitement de gaz d'échappement par des faisceaux d'électrons
WO1999028017A1 (fr) * 1997-12-01 1999-06-10 Ebara Corporation Procede et appareil de desulfuration de gaz brules

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5326258A (en) * 1976-08-24 1978-03-10 Ishikawajima Harima Heavy Ind Co Ltd Denitrating method of spraying type
EP0716873A1 (fr) * 1994-12-12 1996-06-19 Ebara Corporation Méthode et dispositif pour le traitement de gaz d'échappement par des faisceaux d'électrons
WO1999028017A1 (fr) * 1997-12-01 1999-06-10 Ebara Corporation Procede et appareil de desulfuration de gaz brules

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4808970B2 (ja) * 2002-12-30 2011-11-02 ネクター セラピューティクス 噴霧乾燥システム
JP2013530042A (ja) * 2010-06-14 2013-07-25 ダウ グローバル テクノロジーズ エルエルシー 静的反応性ジェットミキサ、および、アミン−ホスゲン混合プロセスの間に混合する方法
US9259704B2 (en) 2010-06-14 2016-02-16 Dow Global Technologies Llc Static reactive jet mixer, and methods of mixing during an amine-phosgene mixing process
CN102168852A (zh) * 2010-12-23 2011-08-31 北京机电院高技术股份有限公司 一种降低垃圾焚烧烟气中氮氧化物排放限值的方法及装置
CN103657385A (zh) * 2012-09-10 2014-03-26 杨建华 Sncr脱硝系统用双雾化喷枪
KR101582958B1 (ko) * 2015-07-28 2016-01-06 (주)에스디메카텍 플렉시블 이류체 분사노즐
US10898912B2 (en) 2015-08-28 2021-01-26 Regents Of The University Of Minnesota Nozzles and methods of mixing fluid flows
CN108348933A (zh) * 2015-08-28 2018-07-31 明尼苏达州大学董事会 喷嘴和混合流体流的方法
EP3341132A4 (fr) * 2015-08-28 2019-04-10 Regents of the University of Minnesota Buses et procédés de mélange d'écoulements de fluide
WO2017040314A1 (fr) 2015-08-28 2017-03-09 Regents Of The University Of Minnesota Buses et procédés de mélange d'écoulements de fluide
CN108348933B (zh) * 2015-08-28 2022-01-28 明尼苏达州大学董事会 喷嘴和混合流体流的方法
WO2018028807A1 (fr) * 2016-08-11 2018-02-15 Krueger Joerg Système de conduites de fluide et procédé correspondant
CN109562400A (zh) * 2016-08-11 2019-04-02 约尔格·克鲁格 流体管线系统及相应的方法
WO2018069331A1 (fr) * 2016-10-10 2018-04-19 Ingeniatrics Tecnologías, S.L. Appareil et procédé de mélange d'au moins deux liquides
US11872583B2 (en) 2018-06-14 2024-01-16 Regents Of The University Of Minnesota Counterflow mixer and atomizer
WO2023228634A1 (fr) * 2022-05-25 2023-11-30 パナソニックＩｐマネジメント株式会社 Dispositif d'atomisation

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