WO2010091490A1 - Dispositif et procédé de filtrage et d'épuration de gaz d'échappement provenant de moteurs à combustion interne - Google Patents

Dispositif et procédé de filtrage et d'épuration de gaz d'échappement provenant de moteurs à combustion interne Download PDF

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Publication number
WO2010091490A1
WO2010091490A1 PCT/BR2010/000043 BR2010000043W WO2010091490A1 WO 2010091490 A1 WO2010091490 A1 WO 2010091490A1 BR 2010000043 W BR2010000043 W BR 2010000043W WO 2010091490 A1 WO2010091490 A1 WO 2010091490A1
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Prior art keywords
gas flow
exhaust gas
flow
exhaust
chamber
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PCT/BR2010/000043
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English (en)
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Gilberto Leal Ribeiro
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/037—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of inertial or centrifugal separators, e.g. of cyclone type, optionally combined or associated with agglomerators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/05—Separating dispersed particles from gases, air or vapours by liquid as separating agent by condensation of the separating agent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/22—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a condensation chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of exhaust gas passages, pipes or tubes
    • F01N2470/30—Tubes with restrictions, i.e. venturi or the like, e.g. for sucking air or measuring mass flow
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to a device and a method to provide not only the filtration and separation of the inhalable solid particles contained in the flow of hot exhaust gases from internal combustion engines, such as diesel engines, gasoline engines, fuel oil engines or any- other internal combustion engine which burns petroleum- derived fossil fuel, but also the cooling and depuration of said exhaust gases, so as to drastically reduce the release, into the environment, of pollutant compounds, such as carbon monoxide, nitrogen oxide, sulfur dioxide, which compounds contain carcinogenic substances which are able to penetrate into the lungs when breathed in, and which are intimately associated with the so-called acid precipitations or rains.
  • internal combustion engines such as diesel engines, gasoline engines, fuel oil engines or any- other internal combustion engine which burns petroleum- derived fossil fuel
  • pollutant compounds such as carbon monoxide, nitrogen oxide, sulfur dioxide
  • Patent WO 99/56854 (PCT/DK99/00237) describes a method and a device for separating solid particles from a flow of hot exhaust gases of a diesel engine.
  • the exhaust flow has its relative humidity increased by water atomization, being cooled to a temperature close to that of its dew point and then accelerated, by reducing the cross sectional area of the conduit or by a turbine, so as to provide an additional temperature reduction and water vapor condensation, making the solid particles be encapsulated in condensate droplets which can be separated from the exhaust flow by cyclone or by gravity.
  • the invention has also the object of providing a method to carry out the filtration and depuration of exhaust gases from inner combustion engines fueled by diesel, gasoline, fuel oil or other petroleum-derived fossil fuels, in light or heavy vehicles to be used in highways, railroads, seas and river, or also in movable or stationary equipment, and which allows obtaining a high degree of retention of particulate matter and toxic gases from the exhaust gas flow of said internal combustion engines provided in such vehicles or equipment .
  • the device for filtration and depuration of exhaust gases from internal combustion engines comprises: a pre-treatment means for pre-humidifying and pre- cooling, with atomized water, the flow of hot exhaust gases of the engine;
  • a flow homogenizing means for eddying said exhaust gas flow and homogenizing it; at least one treatment means for providing the humidification, with atomized water, of the homogenized exhaust gas flow, the shearing of the solid particles and the compression of said flow until a pressure of about 8.0 Kg/cm 2 which can achieve about 1.2 times the discharge pressure of the engine; - an exhaust means, receiving the gas flow, at negative pressure, from the treatment means and imparting, to said gas flow, a downward path through a lower outlet for releasing water and exhaust gases containing water vapor and solid particles;
  • condensing means receiving the exhaust gas flow from the exhaust means, providing the condensation of the water vapor and its collection jointly with the particulate matter and toxic gases, and releasing the flow of depurated exhaust gases into the atmosphere.
  • the pre - treatment , treatment and condensing means are supplied, with water, from a water source, generally a tank.
  • a water source generally a tank.
  • the collection of water and of the condensate which carries the particulate matter and which dissolves the toxic gases is made in a collecting reservoir.
  • the method for filtration and depuration of exhaust gases from internal combustion engines comprises the steps of : - submitting the exhaust gas flow from the engine to a pre-treatment , in order to pre-humidify and pre-cool it with atomized water;
  • Figure 1 represents a simplified flowchart of the means required for constructing the device and for carrying out the method for filtration and depuration of exhaust gases from internal combustion engines;
  • Figure 2 represents, in a somewhat enlarged scale, a diametrical longitudinal sectional view of the pre- treatment means and of the homogenizing means for the exhaust gases received from the engine
  • Figure 3 represents, in an enlarged scale an in a somewhat simplified way, an axial sectional view of a pair of treatment means and of the exhaust means of the present device, for providing the final humidification of the exhaust gas flow, the shearing of the solid particles contained in said flow and a compression of the latter, and also for impelling the exhaust gas flow from the treatment means to the condensing means
  • Figure 4 represents a diametrical cross sectional view of one of the treatment means, said section taken according to line IV-IV in figures 1 and 3 ;
  • Figure 5 represents, in an enlarged scale an in a somewhat simplified way, a longitudinal axial sectional view of the condensing means and of the collecting reservoir;
  • Figure 6 represents a somewhat simplified diametrical cross sectional view of the exhaust and the condensing means, said section taken according to line VI-VI in figure 1;
  • Figure 7 represents an enlarged longitudinal sectional view of the gas releasing means, mounted downstream of the condensing means .
  • the device for filtration and depuration of exhaust gases comprises a pre-treatment means 10 to pre-humidify and pre-cool the hot gas flow released by the engine M at temperatures which generally range from about 350°C to about 650 0 C.
  • the pre-treatment means 10 comprises a tubular portion 11 having an inlet end 11a connected to the discharge of the engine M, an outlet end lib and a high pressure atomizing means 12, preferably a pressure in the order of 12 kgf/cm 2 and which is mounted internally to the tubular portion 11 and disposed to atomize water in the exhaust gas flow received from the engine M, with said atomization being made in the same direction of the exhaust gas flow.
  • the gas flow has the particulate matter pre-humidified and its whole mass pre- cooled as a function of the water atomization, allowing not only to increase the density of the particles suspended in the exhaust flow, but also the cooling of the latter to a temperature of about 65 0 C to about 95 °C, lower than the temperature at which the gas flow is received in the present device.
  • the water atomization, in said pre-humidifying and pre- cooling step is made so as to increase the density of the particles suspended in the exhaust gas flow, as well as to reduce the temperature of said flow.
  • the water to be atomized into the exhaust gas flow is pumped from a water source 20 which can take different forms, as described ahead.
  • One of the forms is represented by a tank 21 mounted in the vehicle or equipment in which the present device is installed or in any support in the mounting site.
  • the already pre-humidified and pre-cooled exhaust gas flow is then supplied to a flow homogenizing means 30 which is constructed to eddy the exhaust gas flow, provoking its homogenization.
  • the flow homogenizing means 30 comprises an annular tubular body 31 defined by an outer tubular wall 32 and by an inner tubular wall 33, which walls define, jointly with the end walls 34a, 34b, an outer annular chamber CE with ends closed by the end walls 34a, 34b, and an inner cylindrical chamber CI with an end closed by one of the end walls 34a and with the other end opened and defining an outlet nozzle 30b of the flow homogenizing means 30, whose inlet nozzle 30a is provided, in a substantially radial fashion, through the outer tubular wall 32.
  • the inlet nozzle 30a of the flow homogenizing means 30 can take the form of a volute, so as to facilitate admitting the exhaust gas flow in the interior of the outer annular chamber CE for filling and pressurizing the latter, said flow being then split into multiple radial gas flows which pass through a plurality of radial tubes 35 disposed through the inner tubular wall 33 and opened to the outer annular chamber CE and to the inner cylindrical chamber CI.
  • the construction of the flow homogenizing means 30 is made with the purpose of provoking, in the interior of the inner cylindrical chamber CI of the annular tubular body 31, a strong centripetal eddy of the multiple exhaust gas flows which are passed through the plurality of radial tubes 35, provoking a high degree of homogenization of the mass of particulate matter suspended in the already pre-humidified and pre-cooled exhaust gas flow.
  • the inner cylindrical chamber CI of the annular tubular body 31 defines, in its interior, a region for eddying and homogenizing the exhaust gas flow, said inner cylindrical chamber CI being opened to the outlet nozzle 30b of the flow homogenizing means 30, which nozzle is opened to at least one expansion region 36, to which the already eddied and homogenized gas flow is directed.
  • the already pre-humidified, pre-cooled and homogenized exhaust gas flow is then conducted from the expansion region 36, generally in the form of a cross-sectional tube extension not inferior to that of the inner cylindrical chamber CI, to at least one treatment means 40, which is designed to provide a final humidification, with water, of the exhaust gas flow, the shearing of the solid particles and also the compression of said gas flow until a pressure of about 1.2 times the discharge pressure of the engine M, reaching, for example, pressures of the order of 8 kgf/cm 2 in diesel engines.
  • Each treatment means 40 comprises at least one rotary compressor 41, with a rotor R having a horizontal shaft 44 and multiple concentric compression stages that are maintained in radial fluid communication with each other and disposed in the interior of a tubular casing 42 provided with a generally lower radial inlet 42a for the already homogenized exhaust gas flow received from the respective expansion region 36 of the flow homogenizing means 30, and with a central axial outlet 42b (see figure 3) to release the gas flow with the already sheared, humidified and cooled particles jointly with the gaseous mass .
  • each stage E of the rotor R of the rotary compressor 41 is defined between two concentric cylindrical walls 45, said stages E taking the form of concentric annular chambers, having the ends of the cylindrical walls 45 respectively attached to the end walls 46 of the rotor R, which end walls 46 close the end of the stages E.
  • Each treatment means 40 is constructed to provide the humidification of the exhaust gas flow.
  • a water atomizing means 43 in the interior of the tubular casing 42 of each rotary compressor 41, a water atomizing means 43, generally an atomizing nozzle disposed in the upper region of the tubular casing 42, preferably in the interior of a radial tubular projection 42c of the latter, opposite to the radial inlet 42a of the tubular casing 42.
  • each rotary compressor 41 carries, externally to the cylindrical wall 45 external to the first compression stage E, a plurality of small radial blades 47 disposed so as to conduct, upon rotation of the rotary compressor 41, the humidifying water, which is sprayed into the interior of the tubular casing 42 by the atomizing means 43, to the interior of the first compression stage E, through radial holes 45a provided in said outer cylindrical wall 45 of the first compression stage E.
  • the fluid communication between the compression stages E and between the last compression stage E and the central axial outlet 42b of the tubular casing 42 is defined by a plurality of radial holes 45a provided in the cylindrical side walls 45 which limit each compression stage E.
  • the radial holes 45a are disposed offset from each other at every two adjacent compression stages E.
  • each rotary compressor 41 presents the multiple stages in the form of concentric annular tubular chambers radially adjacent to each other, having their ends closed by the end walls 46 of the rotor R.
  • each rotor R of rotary compressor 41 also comprises, in at least part of the different compression stages E, a plurality of axially disposed and angularly spaced apart shearing rods 48, and with the opposite ends attached to the respective end walls 46 of the rotor R, said shearing rods 48 rotating jointly with the rotor R, so as to impact the solid particles contained in the exhaust gas flow.
  • the present device further comprises a flow rectifying tube 49 disposed coaxially to the rotary compressor 41 and interconnecting its central axial outlet 42b to the radial exhaust means 50.
  • a flow rectifying tube 49 disposed coaxially to the rotary compressor 41 and interconnecting its central axial outlet 42b to the radial exhaust means 50.
  • the combustion gas flow received in the interior of the tubular casing 42 is eddied, intensely humidified by the mixture with the humidifying water atomized into the interior of the tubular casing and conducted through the different compression stages E, upon rotation of the small radial blades 47, the gas flow being progressively compressed, passing to the first compression stage E, through the radial holes 45a provided in the outermost cylindrical side wall 45 of the rotor R.
  • the exhaust gas flow is progressively compressed, from a stage E to the following radially innermost stage, until reaching a pressure of the order of 8 kgf/cm 2 , the solid particles being humidified by the water atomization, at pressures of the order of 12 kgf/cm 2 , and simultaneously and progressively sheared by the shearing rods 48 disposed in the interior of each compression stage E.
  • the combustion gas flow already completely humidified, presenting an increase in the particle density and with its suspended solid particles already intensely sheared, is released through the central axial outlet 42b and directed to a radial exhaust means 50 disposed generally coaxially to the rotary compressors 41.
  • the radial exhaust means 50 comprises a cylindrical casing 52 with opposite ends each coupled to a tubular casing 42 of a respective treatment means 40 and housing a rotor RE mounted in the same shaft 44 of the rotors R of the compressors 41 and having, in each end, a central axial inlet 52a for the exhaust gas flow coming from each treatment means 40, and a plurality of radial fins 55, the cylindrical casing 52 being laterally opened to a lateral volute 53 which defines a lower outlet 54 for the water and exhaust gases containing water vapor and solid particles in suspension.
  • the exhaust flow containing water vapor and solid particles is then supplied to a condensing means 60 comprising an inlet chamber CEN, presenting an elongated annular-tubular shape and closed ends, which is horizontally disposed and which medianly and tangentially receives the exhaust gas flow released by the lower outlet 54 of the exhaust means 50.
  • the condensing means 60 comprises an also elongated annular-tubular outer chamber CEX, which is horizontally disposed and defined between an outer tubular wall 62, separating it from the inlet chamber CEN, and an inner tubular wall 63, said outer chamber CEX being closed by an end wall 64 at one of its ends.
  • the exhaust gas flow which is admitted in the inlet chamber CEN, pressurizes the interior of the latter and is passed to one of the end regions of the outer chamber CEX, through a plurality of windows 65 provided in the outer tubular wall 62.
  • an atomization annular chamber CAT which is separated from the outer chamber CEX by an annular dividing wall 66 which is trespassed by a plurality of eccentric axial tubes 67 communicating the atomization annular chamber CAT with the outer chamber CEX.
  • atomizing nozzles 68 On the end wall 64, common to the atomization annular chamber CAT and outer chamber CEX, there are mounted atomizing nozzles 68 to atomize water from the tank 21 into the exhaust gas flow which penetrates into the atomization annular chamber CAT, the atomization being made in the axial direction, turned to the eccentric axial tubes 67. This atomization is made at a pressure in the order of 12 kgf/cm 2 and with a flow rate sufficient to condense substantially the whole water vapor of the exhaust gas flow reaching the condensing means 60.
  • the inlet chamber CEN is inferiorly provided, in its region adjacent to the windows 65 of the atomization annular chamber CAT, with a lower outlet 65a which is connected, by a conduit 65b, to the collecting reservoir 70, to conduct, gravitationally to the latter, the water, the condensate and the particulate material already radially and inferiorly released from the atomization annular chamber CAT.
  • the inner tubular wall 63 defines, therewithin, a tubular inner chamber CIN having an end opened to an adjacent end of the outer chamber CEX and with the opposite end projecting through the atomization annular chamber CAT, outwardly from the condensing means 60, in order to be opened to the atmosphere or even preferably connected to an exhaust means 100.
  • the outer chamber is further provided with a plurality of parallel and spaced apart annular dividing walls 66a disposed transversally to the longitudinal axis of the outer chamber CEX.
  • the annular dividing walls 66a define, therebetween, annular chambers CA maintained in communication by a plurality of axial tubes 67a disposed through the annular dividing walls 66a and which are maintained radially spaced from the inner tubular wall 63 and outer tubular wall 62 of the outer chamber CEX, and have their ends opened and projecting inwardly the respective annular chambers CA, the axial tubes 67a of an annular dividing wall 66a being axially offset in relation to the axial tubes 67a of the two adjacent annular dividing walls 66a.
  • the gas flow still containing water vapor and residual particulate matter passes through by the annular chambers CA, being progressively condensed and released, through the open end of the outer chamber CEX, to a drip- stop device 80 provided with a lower outlet 81 connected to a tube 82 which conducts the condensate, and the particulate matter suspended therein, to the collecting reservoir 70.
  • the already cooled and depurated remaining gaseous flow can be released into the atmosphere or also preferably conducted, through the inner chamber CIN, to the exhaust means 100.
  • the water to be atomized in the pre-treatment means 10, treatment means 40 and condensing means 60 is pumped from the water source 20 which, in the illustrated example, is defined by the tank 21.
  • the pumping may be made by any adequate pump 25 and through tubes 26.
  • the collecting reservoir 70 can be constructed in different ways, including or not a means 71 for treating the water and condensate that are collected, for example by filtration, for allowing the water used in the process to be re-used in a closed circuit, that is, returned to the tank 21. This arrangement allows great economy of the water to be used in the humidifying method, without requiring the continuous replacement of water in the tank 21, increasing the autonomy of the device, particularly when applied in automotive vehicles.
  • the exhaust means 100 when provided, is coupled to the outlet of the inner chamber CIN of the condensing means 60, to receive the cooled and depurated gaseous flow in the latter and submit it to an additional condensing operation, with the main purpose of catching any still remaining water, in the form of vapor, in the exhaust flow.
  • the gas flow which leaves the condensing means 60 is conducted, by an adequate pipe 69, to the exhaust means 100, which can take the form of a vertically disposed tubular body 101, having a lower end 101a connected to the pipe 69 and an upper end opened to the atmosphere.
  • the tubular body 101 houses a plurality of horizontal annular trays 102 somewhat spaced apart, through which the ascending gas flow is passed, the peripheral regions of the annular trays 102 projecting and being opened to the interior of a collecting chamber 103, surrounding the tubular body 101 and having an annular bottom wall 103a from which downwardly projects a draining tube 104 having a lower end opened to the interior of the pre-treatment means 10, downstream of the atomizing means 12 and upstream of the flow homogenizing means 30.
  • connection of the draining tube 104 with the tubular portion 11 of the pre-treatment means 10 is made so that the flow of exhaust gases passing through the latter operates as an ejector, producing a pressure drop in the interior of the draining tube 104 and consequently drawing back, to the device, any condensate collected in the interior of the collecting chamber 103, preventing the loss of the water used in the process for filtration and depuration of exhaust gases.
  • the gas flow coming from the condensing means 60 passes through the interior of the annular trays 102, in which the remaining water vapor is condensed, radially conducted to the intake chamber 103, and gravitationally and pressurizedly drawn back to the pre-treatment means 10, while the gas flow, which passes through the filter element 105 generally in the form of cartridge to be periodically replaced, is released into the atmosphere.
  • the present equipment by operating according to the method described herein and applied in the discharge of the exhaust gases of a 340 HP Scania diesel engine, manufactured in 1993, allowed achieving the indices of exhaust gas depuration and particulate matter retention defined below.
  • the invention allows obtaining great efficiency in terms of filtration/retention of particulate matter and of depuration of toxic gases from an exhaust flow of an internal combustion engine which burns a petroleum fossil fuel.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)

Abstract

Le dispositif comprend: des moyens de prétraitement (10) pour humidifier et refroidir préalablement à l'aide d'eau atomisée le flux de gaz d'échappement chauds provenant du moteur (M); un système d'homogénéisation (30) de flux; au moins un moyen de traitement (40) qui produit l'humidification finale du flux de gaz d'échappement, le cisaillement des particules et la compression dudit flux; des moyens d'échappement (50) dirigeant le flux de gaz traités vers un orifice de sortie (54) inférieur pour dégager l'eau, les gaz d'échappement contenant de la vapeur d'eau et des particules solides; des moyens de condensation (60) qui reçoivent le flux de gaz d'échappement, condensent la vapeur d'eau, collectent celle-ci ainsi que les matières particulaires et les gaz toxiques, et libèrent le flux de gaz d'échappement épurés dans l'atmosphère; une source (20) d'eau; et un réservoir (70) de collecte d'eau et de condensat contenant les matières particulaires et les gaz toxiques dissous.
PCT/BR2010/000043 2009-02-13 2010-02-09 Dispositif et procédé de filtrage et d'épuration de gaz d'échappement provenant de moteurs à combustion interne Ceased WO2010091490A1 (fr)

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Application Number Priority Date Filing Date Title
BRPI0900247 2009-02-13
BRPI0900247-2 2009-02-13
BRPROVISIONALNUMBERPI01810000374 2010-02-04

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3035440A1 (fr) * 2015-04-24 2016-10-28 Claude Jules Joseph Vansuyt Dispositif de filtration humide des rejets gazeux en sortie de pot d'echappement d'un vehicule a moteur thermique
WO2018152605A1 (fr) * 2017-02-21 2018-08-30 Riberman Inovações Tecnológicas Ltda. – Me Système d'épuration de gaz et de séquestration de matières particulaires provenant de moteurs à combustion interne, avec conversion de perte en énergie additionnelle
CN110121613A (zh) * 2016-11-09 2019-08-13 Avl排放测试系统有限责任公司 用于废气测量设备的冷凝物排放系统

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US4317806A (en) * 1978-10-23 1982-03-02 Lutz Leisegang Method and apparatus for dedusting and absorption of contaminating gases being the exhaust gases of waste-incinerating devices and hot-air cupola furnaces
JPS61271015A (ja) * 1985-05-28 1986-12-01 Ebara Corp 粉塵除去システム
NO162530B (no) 1985-05-24 1989-10-02 Ni I Konstrukt Tekhnolog I Tra Noeytraliseringsinnretning av vaesketypen for utloepsgasser fra forbrenningsmotor.
US5370847A (en) * 1992-06-27 1994-12-06 Anico Co. Ltd. Method and multi-ejector type of system for purifying the polluted poisonous exhaust gas
GB2300024A (en) 1995-04-11 1996-10-23 Ronald Stanley Carr Vehicle exhaust gas cleaning
WO1999013961A1 (fr) * 1997-09-03 1999-03-25 Converter Technology, Inc. Separation continue de particules et systeme de nettoyage par elimination
WO1999056854A1 (fr) 1998-05-01 1999-11-11 Touborg Joern Procede et dispositif convenant a la separation de particules solides contenues dans un courant de gaz chaud
US20050178111A1 (en) * 2002-07-25 2005-08-18 Kammel Refaat A. Exhaust after-treatment system for the reduction of pollutants from diesel engine exhaust and related method
BRPI0502332A (pt) 2005-04-27 2006-12-12 Gilberto Leal Ribeiro desintegrador captador de partìculas e depurador de gases, provenientes da combustão de motores a diesel em Ènibus, caminhões e motores estacionários em geral

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317806A (en) * 1978-10-23 1982-03-02 Lutz Leisegang Method and apparatus for dedusting and absorption of contaminating gases being the exhaust gases of waste-incinerating devices and hot-air cupola furnaces
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FR3035440A1 (fr) * 2015-04-24 2016-10-28 Claude Jules Joseph Vansuyt Dispositif de filtration humide des rejets gazeux en sortie de pot d'echappement d'un vehicule a moteur thermique
CN110121613A (zh) * 2016-11-09 2019-08-13 Avl排放测试系统有限责任公司 用于废气测量设备的冷凝物排放系统
CN110121613B (zh) * 2016-11-09 2023-03-17 Avl排放测试系统有限责任公司 用于废气测量设备的冷凝物排放系统
WO2018152605A1 (fr) * 2017-02-21 2018-08-30 Riberman Inovações Tecnológicas Ltda. – Me Système d'épuration de gaz et de séquestration de matières particulaires provenant de moteurs à combustion interne, avec conversion de perte en énergie additionnelle
US11614016B2 (en) 2017-02-21 2023-03-28 Riberman Inovações Tecnologicas Ltda.—Me System for cleaning gases and sequestration of particulate material from internal combustion engines with conversion of waste into extra energy

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