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WO2010092035A1 - Procédé et dispositif pour traiter des rejets gazeux provenant d'installations de frittage ou de pelletisation - Google Patents

Procédé et dispositif pour traiter des rejets gazeux provenant d'installations de frittage ou de pelletisation Download PDF

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Publication number
WO2010092035A1
WO2010092035A1 PCT/EP2010/051536 EP2010051536W WO2010092035A1 WO 2010092035 A1 WO2010092035 A1 WO 2010092035A1 EP 2010051536 W EP2010051536 W EP 2010051536W WO 2010092035 A1 WO2010092035 A1 WO 2010092035A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
aqueous medium
medium
exhaust
alkaline
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/EP2010/051536
Other languages
German (de)
English (en)
Inventor
Alexander Fleischanderl
Robert Neuhold
Tobias Plattner
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.)
Primetals Technologies Austria GmbH
Original Assignee
Siemens VAI Metals Technologies GmbH and Co
Siemens VAI Metals Technologies GmbH Austria
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 Siemens VAI Metals Technologies GmbH and Co, Siemens VAI Metals Technologies GmbH Austria filed Critical Siemens VAI Metals Technologies GmbH and Co
Priority to CN201090000691.0U priority Critical patent/CN203002189U/zh
Priority to SK5042-2011U priority patent/SK6187Y1/sk
Publication of WO2010092035A1 publication Critical patent/WO2010092035A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B01D53/508—Sulfur oxides by treating the gases with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/30—Alkali metal compounds
    • B01D2251/304—Alkali metal compounds of sodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/30—Alkali metal compounds
    • B01D2251/306—Alkali metal compounds of potassium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B01D2251/604—Hydroxides
    • 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

Definitions

  • the invention relates to a method for the removal of SO 2 from exhaust gas from sintering or pelletizing, in which one from the exhaust gas from a sintered or
  • Pelletizing plant existing exhaust stream in an exhaust gas channel dry additive comprising one or more members of the group adsorbent, recirculate, alkaline earth-based reagent is added in the flyflow process, solids entrained in the exhaust gas then separated from the exhaust gas through fabric filters and at least partially recirculated into the exhaust stream, and Exhaust gas is cooled and humidified by injecting or atomizing aqueous medium into the exhaust stream, and an apparatus for carrying out the method.
  • Exhaust gas from sintering or pelletizing plants accumulates in large quantities and is significant with pollutants such as particulate matter, aerosols, heavy metals, organic emissions such as dioxins, furans, VOC, PAC, as well as with acidic components such as sulfur dioxide SO 2 , sulfur trioxide SO 3 , hydrogen chloride HCl or hydrogen fluoride HF loaded.
  • pollutants such as particulate matter, aerosols, heavy metals, organic emissions such as dioxins, furans, VOC, PAC, as well as with acidic components such as sulfur dioxide SO 2 , sulfur trioxide SO 3 , hydrogen chloride HCl or hydrogen fluoride HF loaded.
  • the exhaust gas stream a dry additive consisting at least of adsorbent and recirculate and optionally add reagent in the air flow process and entrained in the exhaust stream solids then from the exhaust gas through fabric filters deposit.
  • the exhaust gas can be cooled and / or humidified by injecting or atomising aqueous medium into the exhaust gas stream.
  • the cooling and humidification of the exhaust gas stream by spraying or atomizing aqueous medium is carried out to increase the reactivity of the additive and the reagent.
  • the aqueous medium creates a hydrate film on the hydrated lime particles of the additive or reagent and its pores, thereby substantially improving the chemisorption of acidic components.
  • the deposition of sulfur dioxide with calcareous reagents is highly temperature-dependent and is much easier at lower temperatures.
  • the deposited on the fabric filters material is at least partially recirculated into the exhaust stream to better exploit its potential for cleaning the exhaust gas.
  • the composition of the exhaust gas from sintering or pelletizing plants varies over time. For example, it has process-related and raw material-related peaks in the content of the exhaust gas to SO 2 . Regulatory emission limits are often half-hourly emission means; However, correspondingly occurring peaks in the content of the exhaust gas on SO 2 , the half-hour emission average values may be significantly greater than the prevailing before and after occurrence of the peak content of the exhaust gas stream of SO 2 .
  • solid erdalkali dockiges reagent is used. Such reagents have a very slow reaction kinetics with respect to reactions with SO 2 .
  • Pelletizing, dry additive comprising one or more members of the group adsorbent, recirculate, alkaline earth based reagent, added in the air flow process, solids entrained in the exhaust gas are then separated from the exhaust gas by fabric filters and at least partially recirculated as recirculated into the exhaust stream, and the exhaust gas by incorporation of aqueous Cooled and moistened medium is controlled in the exhaust gas stream, characterized in that medium-containing medium is temporarily added to the aqueous medium prior to the introduction of the aqueous medium.
  • the corresponding sintering or pelletizing plants are in particular sintering or pelleting plants for iron ore, the sintered iron ores preferably being used in steelmaking.
  • air flow method processes in which additive is added to a flowing in a given direction exhaust gas flow, the additive is entrained by the exhaust gas flow and there are reactions between entrained additive and components of the exhaust gas.
  • exhaust gas is fluidized in a reactor and therefore does not flow in a predetermined direction.
  • the mean residence time of the additive in the exhaust stream is several seconds, typically 2 to 10 seconds.
  • the average residence time is above such values.
  • the solids loading of the exhaust gas stream after introduction of additive and recirculate, and before separation through a fabric filter is typically 1 to 50 g / Nm 3 in a trajectory process, and is thus significantly lower than in a typical
  • the solids loading is about 20 to 50 times that of a fly-stream process.
  • a loading of the exhaust gas stream amounting to more than 50 g / Nm 3 has a disadvantageous effect on the operating costs in the case of a filtering exhaust gas purification process. Above all, the frequent cleaning cycles of the cloth filter lead to a reduction in the lifetime. It could be proven that in
  • the dry additive is one or more members of the adsorbent, recirculate, alkaline earth-based reagent group.
  • the dry additive comprises at least adsorbent and recirculate.
  • the dry additive preferably consists at least of adsorbent and recirculate.
  • the adsorbent is, for example, hearth furnace coke, mill activated coke, activated carbon, bentonite, zeolite or other adsorptive materials, or a mixture of several of said adsorbents.
  • it is activated carbon or Herdofenkoks.
  • the alkaline earth-based reagent includes, for example, solid calcium hydroxide Ca (OH) 2 , solid magnesium hydroxide Mg (OH) 2 , or limestone powder.
  • the alkaline earth based reagent comprises or is solid hydrated lime, as this can be prepared by quenching quicklime readily available in iron and steel making, is inexpensive, and is a highly efficient reagent for removing SO 2 from the exhaust stream.
  • fabric filter includes bag filters, pocket filters, cloth filters, textile filters and metallic fabric filters.
  • aqueous medium can be done for example by spraying or atomizing.
  • the aqueous medium is water, which is preferably process water or wastewater.
  • medium-containing medium is temporarily added to the aqueous medium before the introduction of the aqueous medium.
  • alkaline alkaline medium is added, thereby increasing the pH of the aqueous medium.
  • alkali-containing medium By adding the alkali-containing medium more SO 2 can be removed from the exhaust gas stream with a constant added amount of alkaline earth-based reagent.
  • Mg are poorly soluble in water and therefore react only slowly compared to alkaline reagents based on Na or K.
  • Alkali-containing reagents offer one compared to alkaline earth-based reagents more favorable stoichiometry and kinetics of the SO 2 removal reactions from the exhaust gas.
  • An increase in the content of the exhaust gas to SO 2 can be reacted according to the invention by adding alkali-containing medium into the aqueous medium, without having to increase the amount of solid erdalkalibasierendem reagent or additive.
  • the device for carrying out the method according to the invention can be made smaller than in the prior art, and it falls to the fabric filters less polluting deposited material to be disposed of.
  • the alkaline medium includes or is, for example, sodium bicarbonate
  • the alkaline alkaline medium comprises or is, for example, sodium hydroxide NaOH, potassium hydroxide KOH or lithium hydroxide LiOH.
  • the alkaline alkaline medium is added as an aqueous solution, for example as sodium hydroxide solution or potassium hydroxide solution, preferably as 30-50% by weight sodium hydroxide solution.
  • alkali-containing medium takes place only temporarily, preferably when emissions exceeding the emission limit are to be expected.
  • a permanent increase would have the disadvantages that higher operating costs would arise and the solids deposited on the fabric filter would have higher alkali values, making their further utilization more difficult.
  • a temporary increase is preferably initiated when the content of SO 2 in the exhaust gas stream, ie the concentration of SO 2 , before the treatment or the emissions after exhaust treatment exceed defined threshold values, or if the increase in the content of the exhaust gas to SO 2 , ie Increase in the concentration of S0 2 in the exhaust exceeds a certain critical slope value.
  • the threshold values result, for example, from the amount of erdalkalibasierendem reagent used and additive or their ability to separate SO 2 when using from the size of the device for carrying out the method according to the invention.
  • the critical slope value indicates a strong increase in concentration per unit time and thus announces peaks in the content of the exhaust gas to SO 2 , which would exceed the emission limit value to be observed without the implementation of the measures according to the invention.
  • the critical slope value is set.
  • the pH of the aqueous medium is temporarily lowered before introduction into the exhaust gas stream by addition of acidic medium.
  • a correspondingly acidic aqueous medium causes the dissolution of precipitated calcium and / or magnesium salts and thus contributes to the cleaning of deposited parts of the device.
  • the acidic medium includes, for example, citric acid, acetic acid, other organic acids, or dilute inorganic acids such as hydrochloric acid, sulfuric acid.
  • the acidic medium is citric acid, since citric acid is favorable, hardly attacks metallic materials, is harmless to health and dissolves deposits well.
  • the acidic medium is preferably added to the aqueous medium as an aqueous solution. Solutions are easy to dose and very accurate. A solution works immediately, powders require a period of time to dissolve and are therefore uneconomical in the application. Therefore, the alkali-containing medium is preferably added as an aqueous solution.
  • the addition of the acidic medium may vary depending on the thickness of deposits
  • a deposit is for example by a modified control characteristic of a
  • the addition of the acidic medium can also be quantity-dependent, for example after
  • the addition of the acidic medium can also be done at fixed intervals.
  • the addition is carried out depending on the amount or deviation of the nozzle curve, as the most effective and cost effective elimination of caking is achieved.
  • the added amount of acidic medium is determined, for example, by reaching a desired nozzle characteristic range. An addition of acidic media takes place when no addition of alkaline alkaline
  • An apparatus for carrying out the method according to the invention comprises at least the following devices: an exhaust gas duct connected to a sintering or pelletizing plant,
  • a device for introducing aqueous medium into the exhaust gas duct which is connected via a supply line to a reservoir for the aqueous medium
  • the device for carrying out the method according to the invention comprises a device for determining the SO 2 concentration in a waste gas stream guided in the exhaust gas duct.
  • the device for carrying out the method according to the invention also a control device for controlling the
  • Exhaust gas flow contains certain values of SO 2 concentration.
  • the device for carrying out the method according to the invention contains a device for adding acidic medium into at least one member of the group
  • the device for carrying out the method according to the invention contains a device for determining deposits in the devices for introducing aqueous medium.
  • control device for controlling the device for adding acidic medium as a function of the
  • Device for determining deposits in the devices for introducing aqueous medium contains certain values of the deposits.
  • deposits of calcium and / or magnesium-containing salts can be removed by lowering the pH of the aqueous medium, and the addition of acidic medium depending on the strength of deposits of calcium and / or magnesium-containing salts in the devices for introducing aqueous medium into the exhaust duct, so if needed, done.
  • Determination of deposits is understood to mean the presence and the strength of deposits.
  • Figure 1 shows a schematic exemplary drawing of an embodiment of an apparatus for performing the method according to the invention.
  • Figure 2 shows the time course of the load of an exhaust gas stream with SO 2 and the time course of the load of exiting the fabric filters pure gas according to the prior art.
  • FIG. 3 shows the time profile of the load of an exhaust gas flow with SO 2 and the time profile of the load on the clean gas emerging from the fabric filters according to the present invention.
  • exhaust gas represented by a corrugated arrow is supplied from a sintering plant for iron ore via an exhaust gas duct 1, which is provided with an induced draft blower 2, to a filter device containing fabric filter 3.
  • the exhaust gas flow thus flows in the direction of the fabric filter 3.
  • gas conditioner water is supplied to the exhaust gas flow via a device for introducing aqueous medium into the exhaust gas duct 5.
  • the device for introducing aqueous medium into the exhaust gas duct 5 is connected via a supply line 6 to an aqueous medium reservoir 30 and to an air supply 31.
  • the exhaust duct 1 narrows again, and finally flows into the filter device containing the fabric filter 3.
  • Solids deposited on the fabric filters 3 can be removed and discharged either via a discharge device 7 or via a device with which at least a subset of the solids deposited in the fabric filter are recirculated is recirculated to the exhaust passage, called recirculation device 8, and a recirculation line 9 in the exhaust passage 1, seen in the flow direction of the exhaust stream behind the extension of the exhaust passage 4, are introduced.
  • the exhaust gas stream is fed via a device for supplying dry additive into the exhaust gas channel, namely the additive supply line 10, adsorbent and alkaline earth based reagent.
  • the alkaline earth-based reagent hydrated lime is supplied from the bunker 11, and adsorbent hearth furnace coke is supplied from the bunker 33 to the additive supply line 10.
  • Exiting gas from the fabric filter 3, which is largely exempted by additive and erdalkalibasierendes reagent of pollutants is supplied via a provided with a suction fan clean gas line 12 a chimney 13 and discharged through this into the environment.
  • aqueous NaOH is temporarily added to the water flowing in the feed line 6.
  • an acidic medium addition device 18 comprising a citric acid aqueous reservoir 19 and an acid feed line 20
  • aqueous citric acid is added to the water flowing in the supply line 6 as needed.
  • Clarity not shown control device the device for the addition of acidic medium is regulated.
  • a device for determining the SO 2 concentration 21 in the gas stream guided in the exhaust duct 1 is connected to a control device 22 for controlling the first device for adding alkali-containing medium 15.
  • the controller 22 controls based on the determined values of the SO 2 concentration.
  • aqueous NaHCO 3 solution is temporarily added to the water flowing in the supply line 6 from a second alkaline medium addition device 23, which is NaHCO 3 comprising a reservoir of aqueous NaHCO 3 24 and a feed line 25 .
  • the second device for the addition of alkaline medium 23 may be provided with a control device for controlling the second device for the addition of alkaline medium 23 may be connected, wherein the control device is also connected to the device for determining the SO 2 concentration 21. This variant is not shown for clarity of the figure.
  • Figure 2 shows the time course of the load of an exhaust gas stream with SO 2 in curve 26 and the time course of the load of the exiting the fabric filters clean gas with SO 2 in curve 27 when performing a method according to the prior art, in which at tips in the Concentration of SO 2 is not reacted by increased addition of additive and alkaline earth-based reagent.
  • the x-axis shows the time course
  • the y-axis indicates the concentration of SO 2 in mg / Nm 3 . It can be seen that the concentration of SO 2 in the clean gas exiting the fabric filters in curve 27 has peaks when the concentration of SO 2 in the exhaust gas flow in curve 26 has peaks.
  • Figure 3 shows the time course of the load of an exhaust gas stream with SO 2 in curve 28 and the time course of the loading of the exiting the fabric filters pure gas with SO 2 in curve 29 in carrying out a method according to the present invention.
  • the compound is prepared analogously to Figure 2.
  • the concentration of SO 2 in curve 28 exceeds a predetermined threshold value, and thereby causes an addition of NaOH in the added water to the gas stream.
  • the concentration of SO 2 falls in curve 28 below the predetermined threshold, and thereby causes the completion of the addition of NaOH in the added water to the gas stream.

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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 procédé pour éliminer du SO2 présent dans des rejets gazeux provenant d'installations de frittage ou de pelletisation, procédé selon lequel on ajoute, en ayant recours à un procédé à lit entraîné, un additif sec à un flux constitué de rejets gazeux provenant d'une installation de frittage ou de pelletisation, dans un canal de rejets gazeux (1), ledit additif comprenant un ou plusieurs membres du groupe suivant : adsorbant, substance recyclée, réactif à base d'alcalinoterreux; les substances solides entraînées dans les rejets gazeux sont ensuite séparées de ces derniers au moyen de filtres en tissu (3) et recyclées au moins en partie dans le flux de rejet gazeux; et les rejets gazeux sont refroidis et humidifiés de manière régulée par introduction d'une substance aqueuse dans le flux de rejets gazeux, une substance renfermant des alcalis étant ajoutée temporairement à la substance aqueuse avant l'introduction de cette dernière. L'invention concerne également un dispositif pour la mise en oeuvre dudit procédé.
PCT/EP2010/051536 2009-02-12 2010-02-09 Procédé et dispositif pour traiter des rejets gazeux provenant d'installations de frittage ou de pelletisation Ceased WO2010092035A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201090000691.0U CN203002189U (zh) 2009-02-12 2010-02-09 用于去除烧结或造粒设备的废气中的so2的装置
SK5042-2011U SK6187Y1 (sk) 2009-02-12 2010-02-09 Equipment for removing sulfur dioxide SO2 from exhaust gases from sintering or pelleting equipment

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA243/2009 2009-02-12
AT2432009A AT507830B1 (de) 2009-02-12 2009-02-12 Verfahren und vorrichtung zur behandlung von abgas aus sinter- oder pelletierungsanlagen

Publications (1)

Publication Number Publication Date
WO2010092035A1 true WO2010092035A1 (fr) 2010-08-19

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PCT/EP2010/051536 Ceased WO2010092035A1 (fr) 2009-02-12 2010-02-09 Procédé et dispositif pour traiter des rejets gazeux provenant d'installations de frittage ou de pelletisation

Country Status (5)

Country Link
CN (1) CN203002189U (fr)
AT (1) AT507830B1 (fr)
RU (1) RU114275U1 (fr)
SK (1) SK6187Y1 (fr)
WO (1) WO2010092035A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2596847A1 (fr) * 2011-11-25 2013-05-29 Alstom Technology Ltd Système de nettoyage du gaz d'une installation de frittage
CN109847571A (zh) * 2019-04-02 2019-06-07 江苏优拿大环保科技有限公司 一种新的半干法脱硫工艺

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113198301B (zh) * 2021-06-01 2022-06-10 江苏省环境工程技术有限公司 一种人造板行业干燥尾气VOCs及颗粒物深度净化方法

Citations (9)

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Publication number Priority date Publication date Assignee Title
FR2372651A1 (fr) * 1976-12-03 1978-06-30 Hoelter H Procede pour la purification des gaz bruts et d'autres gaz residuaires qui contiennent de l'anhydride sulfureux et dispositif pour l'execution de ce procede
GB2174082A (en) * 1985-04-24 1986-10-29 Tampella Oy Ab A process for removing gaseous sulphur compounds, particularly sulphur dioxide, from the flue gases of a furnace
US4670238A (en) * 1986-01-15 1987-06-02 Conoco Inc. Recycled sorbent flue gas desulfurization
US4795619A (en) * 1987-03-20 1989-01-03 Lerner Bernard J Removal of acid gases in dry scrubbing of hot gases
US5246680A (en) * 1990-12-28 1993-09-21 Tampella Power Oy Process for desulfurization of flue gases
EP0655273A2 (fr) * 1987-05-18 1995-05-31 Ftu Gmbh Procédé pour la purification de gaz et de gaz d'échappement
WO2001078875A1 (fr) * 2000-04-18 2001-10-25 Alstom (Switzerland) Ltd Procede a commande informatique destine a eliminer les composes sulfureux d'un flux gazeux
WO2006080636A1 (fr) * 2004-11-17 2006-08-03 In Seob Lee Procede hybride et dispositif destines au traitement des gaz de combustion
WO2006099948A1 (fr) 2005-03-24 2006-09-28 Siemens Vai Metals Technologies Gmbh & Co Procede et dispositif pour traiter des gaz brules degages d'installations de frittage

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372651A1 (fr) * 1976-12-03 1978-06-30 Hoelter H Procede pour la purification des gaz bruts et d'autres gaz residuaires qui contiennent de l'anhydride sulfureux et dispositif pour l'execution de ce procede
GB2174082A (en) * 1985-04-24 1986-10-29 Tampella Oy Ab A process for removing gaseous sulphur compounds, particularly sulphur dioxide, from the flue gases of a furnace
US4670238A (en) * 1986-01-15 1987-06-02 Conoco Inc. Recycled sorbent flue gas desulfurization
US4795619A (en) * 1987-03-20 1989-01-03 Lerner Bernard J Removal of acid gases in dry scrubbing of hot gases
EP0655273A2 (fr) * 1987-05-18 1995-05-31 Ftu Gmbh Procédé pour la purification de gaz et de gaz d'échappement
US5246680A (en) * 1990-12-28 1993-09-21 Tampella Power Oy Process for desulfurization of flue gases
WO2001078875A1 (fr) * 2000-04-18 2001-10-25 Alstom (Switzerland) Ltd Procede a commande informatique destine a eliminer les composes sulfureux d'un flux gazeux
WO2006080636A1 (fr) * 2004-11-17 2006-08-03 In Seob Lee Procede hybride et dispositif destines au traitement des gaz de combustion
WO2006099948A1 (fr) 2005-03-24 2006-09-28 Siemens Vai Metals Technologies Gmbh & Co Procede et dispositif pour traiter des gaz brules degages d'installations de frittage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2596847A1 (fr) * 2011-11-25 2013-05-29 Alstom Technology Ltd Système de nettoyage du gaz d'une installation de frittage
WO2013076610A1 (fr) * 2011-11-25 2013-05-30 Alstom Technology Ltd Système de nettoyage de gaz d'usine de frittage
US9120045B2 (en) 2011-11-25 2015-09-01 Alstom Technology Ltd Sinter plant gas cleaning system
CN109847571A (zh) * 2019-04-02 2019-06-07 江苏优拿大环保科技有限公司 一种新的半干法脱硫工艺

Also Published As

Publication number Publication date
CN203002189U (zh) 2013-06-19
SK6187Y1 (sk) 2012-07-03
RU114275U1 (ru) 2012-03-20
AT507830A1 (de) 2010-08-15
AT507830B1 (de) 2010-10-15
SK50422011U1 (sk) 2012-02-03

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