EP3917675A1 - Module et système de dépollution d'air - Google Patents
Module et système de dépollution d'airInfo
- Publication number
- EP3917675A1 EP3917675A1 EP20705235.8A EP20705235A EP3917675A1 EP 3917675 A1 EP3917675 A1 EP 3917675A1 EP 20705235 A EP20705235 A EP 20705235A EP 3917675 A1 EP3917675 A1 EP 3917675A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- module
- air
- flow
- electrode
- water
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/16—Plant or installations having external electricity supply wet type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/04—Plant or installations having external electricity supply dry type
- B03C3/12—Plant or installations having external electricity supply dry type characterised by separation of ionising and collecting stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/49—Collecting-electrodes tubular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/53—Liquid, or liquid-film, electrodes
Definitions
- the present invention relates to an air pollution control module by wet electrofiltration. This will notably concern urban air.
- the invention also relates to a system comprising several modules of the same type assembled together. Finally, the invention relates to an air pollution control method using said system.
- Air pollution in cities is a global public health problem.
- the air breathed by populations contains a high rate of pollutants such as for example:
- Airborne particles particles in suspension, micro and nanoparticles from combustion processes, pollens, airborne microorganisms, etc.
- Noxious gases Ozone, carbon monoxide, NOx, etc.
- the aim of the invention is to provide a solution allowing pollution control distributed over an arbitrary number of sites according to a given area depending on the level of pollution of each site, which is reliable, which is energy efficient and which does not require a too frequent maintenance. Disclosure of the invention
- an air pollution control module by wet electrofiltration which comprises:
- At least a first tubular duct of helical shape with closed section having a wall delimiting an internal space and an external space and comprising a water inlet, an air inlet and an air outlet,
- Said ramp comprising a continuous flow surface over its entire length and in contact with said first electrode (33),
- Said flow ramp being inclined along a slope forming an angle greater than 0 ° and less than 60 °.
- the module comprises a collecting duct connected to said air outlet.
- the collecting duct is inserted in the axis of the first helical duct.
- the module comprises upstream mechanical connection means to connect to an adjacent upstream module and downstream mechanical connection means to connect to an adjacent downstream module.
- the module comprises electrical connection means connected to the second electrode.
- the module includes electrical connection means connected to the first electrode.
- the module comprises two conduits of helical shape wound around the same axis, each comprising a separate flow ramp.
- the invention also relates to an air pollution control system by wet electrofiltration, which comprises: - n modules, n being greater than or equal to 1, each module being as defined above and identified by a rank i, with i ranging from 1 to n,
- a system for generating an air flow to be decontaminated arranged to generate at least one air flow through the air inlet of a row i module
- a system for generating a water flow connected to the water inlet of the row 1 module to generate said water flow
- the system for generating an air flow to be decontaminated comprises at least one suction pump or a fan mechanically connected to the air outlet of the module of row n.
- the modules are interconnected mechanically as well as electrically by their respective second electrode.
- the system for generating an air flow to be decontaminated is connected to the air inlet of each module to generate an air flow in each module through their respective air inlet.
- the system for generating a flow of water comprises means for sucking water taken from a drinking water or filtered water circuit.
- the system for generating a water flow comprises means for sucking water taken from a water circuit internal to the air pollution control system, operating in a closed circuit.
- the system for generating a water flow comprises a reservoir placed above the air pollution control system to generate said water flow.
- the reservoir can be supplied with rainwater.
- the system comprises a second tubular duct coaxial with said first duct of each module, extending from the module of row 1 to the module of row n, and in that the air outlet of each module is connected to a separate air inlet from this second duct.
- the system comprises discharge means comprising at least one discharge electrode brought to high voltage and producing in its vicinity ionization of the air to be decontaminated.
- discharge means comprising at least one discharge electrode brought to high voltage and producing in its vicinity ionization of the air to be decontaminated.
- the invention also relates to an air pollution control process, implemented using the system as defined in one of the above claims and comprising the following steps:
- FIG. 1 illustrates the principle of implantation of several air pollution control systems according to the invention within a city
- FIG. 2 represents, along a vertical plane, a view in longitudinal section of the duct of an air pollution control module according to the invention and illustrates its operating principle
- FIG. 3 represents a view in cross section of the duct of an air pollution control module according to the invention.
- FIG. 4 represents a view in cross section of the duct of the air pollution control module according to an alternative embodiment
- FIG. 5 represents a pollution control module according to the invention, produced in a helical shape
- FIG. 6 represents a cross-sectional view of an air pollution control module according to the invention and illustrates its operating principle
- FIG. 7 illustrates the operating principle of an air pollution control module according to the invention
- FIG. 8 schematically represents the air pollution control system of the invention and illustrates its operating principle
- FIG. 9 represents a system with two helical modules assembled together
- FIG. 10 illustrates the operating principle of the pollution control system of the invention, at the junction between two of its modules
- FIG. 11 schematically illustrates an alternative embodiment of the pollution control system of the invention
- FIG. 12 schematically illustrates the operating principle of an air pollution control installation including several air pollution control systems in accordance with the invention
- upstream and downstream are to be understood taking into account the direction of the air and water flows present in the system.
- the air pollution control system of the invention is based on the principle of wet electrofiltration, also called the principle of wet electrostatic precipitation. This involves trapping the particles P present in the polluted air by precipitation in a flow of water using an electrostatic field E, the flow of water being produced in the invention in the form of a blade. or a liquid film flowing continuously over a surface.
- the 1_x system (with x ranging from 1 to 4 in Figure 1) of the invention can in particular be attached to a building 2 with several floors, such as a down pipe rainwater, making it easy to implement and deploy in existing architectures. Such a system is thus deployed around a substantially vertical central axis.
- the system is intended to suck the polluted surrounding air in the form of one or more air streams F air in, to treat the polluted air in its column and to reject the cleaned air to the outside, under the form of an outgoing air flow F_air_out.
- the system can trap particles contained in the air, certain polluting gases such as soluble acid gases (S0 2 , HCl, NH 3, etc.) and even heavy metals in the gaseous state or under particle form.
- polluting gases such as soluble acid gases (S0 2 , HCl, NH 3, etc.) and even heavy metals in the gaseous state or under particle form.
- the 1_x system can be composed of several modules Mi assembled together and placed end to end.
- the system can thus include n modules of the same type, n being greater than or equal to 1. It will be considered that a single module Mi is however sufficient to produce the system and to implement the principle of the invention.
- a module Mi of the system is in the form of a preferably one-piece element.
- a module Mi comprises a duct 30 with a closed cross section located in a meridian plane defined with respect to said central axis in which it is a question of passing both an air flow Fi air and a flow of water F_eau.
- the conduit 30 is made of a material which is electrically insulating.
- the air flow Fi air and the water flow F_eau are advantageously oriented in the same direction and in the same direction inside the duct 30 (FIG. 3).
- the duct 30 thus comprises a wall 300 delimiting an internal space forming the flow section 301 of the duct 30 and an external space located on the outside.
- This flow section 301 comprises a flow channel 302 of the air flow Fi air and a flow ramp 303 of the water flow F_eau which are superimposed, the two flows being intended to be in contact with one another. the other during their circulation in the conduit 30.
- the conduit has an upper border located at the inlet of the conduit and a lower border located at the end of the conduit.
- the module Mi comprises an air inlet at its upper border through which the air flow Fi air is injected and a water inlet at its upper border through which the water flow is injected.
- the module then comprises at least two electrodes 33, 34 between which is established the electrostatic field E which allows the precipitation of the particles P of the air to be decontaminated in the water flow F_eau.
- a first electrode 33 is integrated or advantageously fixed to the wall 300 of the pipe 30 which forms the water flow ramp 303 so as to be covered by the water flow F_eau when the latter circulates on the ramp.
- the first electrode 33 may be produced continuously over the entire length of the conduit 30 or only over a part of the length thereof (as can be seen in FIG. 3).
- the module Mi can also include several electrodes 33 of this type, spaced apart by a given distance. The flow of water F_eau in contact with the first electrode 33 thus plays the role of an electrode held to earth.
- the second electrode 34 acts as an active electrode. This is also advantageously integrated or fixed to the wall 300 of the duct 30 ( Figures 2, 3 and 4). It emerged permanently, that is to say out of the water flow F_eau. It is advantageously carried out continuously over the entire length of the duct 30 (FIG. 2).
- each electrode 33, 34 may be in the form of a metal plate, for example rectangular, integrated into the wall of the duct.
- the first electrode is thus in contact with the flow of water F_eau and the second electrode is in contact with the flow of air Fi air.
- the surface of the first electrode 33 which is in contact with the flow of water F_eau is advantageously flush with the flow surface of the conduit 30.
- the first electrode 33 advantageously extends over all or part of the width of the flow surface of the water flow F_eau.
- the second electrode 34 can advantageously have a width at least equal to that of the first electrode.
- the electrostatic field E created between the two electrodes follows a direction transverse to the directions of the water flow and of the air flow, advantageously perpendicular to these directions.
- each electrode 33, 34 can be produced in the form of a separate metallic cable.
- the cable can be fixed on the flow ramp of the water flow.
- the cable is fixed to the upper internal face of the conduit.
- the first electrode 33 intended to be placed at a first electrical potential, integrated or fixed to the wall 300 of the conduit 30 advantageously disposed towards the outside of the ramp as shown in Figure 5;
- the second electrode 34 intended to be placed at a second electric potential, different from the first potential, to create the electrostatic field E advantageously placed towards the interior of the ramp as indicated in FIG. 4;
- the water flow F_eau is shown curved at its surface, to take into account the centrifugal force due to the helical shape of the flow ramp of the duct, the said effect having a tendency to displace the flow. of water outside the ramp.
- the water flow F_eau flows by gravity in the conduit 30, said conduit being able to be produced according to a helix inscribed in various types of cylinder.
- the cylinder can be of any cross section, for example circular, elliptical or of any other shape. In the appended figures and advantageously, the section of the cylinder is circular.
- the ramp 303 of the water flow F_eau has a flow surface which is inclined relative to the vertical. Its inclination is for example defined by an angle A (FIG. 2) with respect to the horizontal plane which is greater than 0 ° and less than 60 °, advantageously between 5 ° and 45 °. This angle can be constant over the entire length of the duct or variable.
- the slope must be sufficiently pronounced to allow the flow of the water flow F_eau but not too pronounced to remain stable and maximize its travel time, so as to increase the duration of the encounter of the air to be decontaminated with the flow of water F_water.
- the flow surface on which the flow of water F_eau is caused to circulate is advantageously continuous, hydrophilic, smooth and flat, so as to allow the flow of water F_eau to be as stable as possible during its flow and to maintain an electrostatic field E as constant as possible over the entire length of the conduit 30. It will also advantageously be made of a material resistant to corrosion. According to the invention, as illustrated by Figures 5 to 7, the duct 30 of the module
- Mi is produced along a helix advantageously inscribed on a right circular cylinder.
- the radius and the pitch of the helix are chosen to obtain the desired inclination of the flow ramp.
- the flow ramp of the water flow F_eau thus follows the helical profile defined by the walls of the duct.
- the duct has a first end through which an incoming water flow F_eau_in is injected and may include a first opening 40J made through its wall, through which is injected an incoming air flow Fi air in to be treated by this module and a second opening 41J made through its wall through which emerges an air flow Fi air out treated by this module.
- the first opening 40J is of course made upstream with respect to the second opening 41J.
- the flow of water F_eau is brought down along the helical ramp and the electrodes 33, 34 described above and integrated into the module allow the creation of the electrostatic field E to trap the particles present in the air flow.
- the helical configuration results in a small footprint while maximizing the residence time of the P particles and gases in the space intended to trap them. This configuration therefore makes it possible to maximize collection yields.
- a Mi module can have the following dimensions:
- the helical flow ramp has a radius that can be between 3 centimeters and 10 centimeters and a pitch ranging from 3 centimeters to 10 centimeters.
- Each module for collecting harmful particles and gases can measure from 50 centimeters to 300 centimeters.
- the Mi may include an additional duct 60, for example central and coaxial with its helical duct 30.
- This duct 60 thus serves as a purified air collector and can be connected to the air outlet of the module Mi to receive the air flow Fi outgoing air out cleaned by the module Mi.
- the air purified by each Mi module can thus be transferred directly to the center of the system in the intake manifold formed by this duct 60.
- the cleaned air can then be returned directly to the base of the system. .
- Its central location makes it possible to offer a solution for the evacuation of treated air in a minimal footprint.
- this conduit 60 could be arranged differently.
- the duct 60 for recovering the module Mi of rank i is connected to that of the module of rank i-1 and to that of rank i + 1, so as to form a single tube along the column.
- the wall of this duct 60 can itself form the internal section of the duct 30 of the helical-shaped module. It is thus possible to have an entirely monobloc solution.
- the 1_x system may comprise a single module of this type or even several modules connected in series so as to assemble the conduits together in a contiguous manner and thus form a single conduit and a higher or lower column of modules.
- the assembled Mi modules are advantageously all identical.
- the cross section of the helical common duct formed by the stack of modules is advantageously constant over the entire height of the column.
- the system can thus comprise n modules, with n which is then greater than or equal to 2.
- Each module Mi of the system can be identified by a rank i, with i ranging from 1 to n.
- the module of rank 1 is the module by which the flow of water F_eau_in is injected.
- the rank n module is the last module in the system. This comprises a water outlet through which the flow of water F_eau_out charged with trapped particles is discharged.
- the water outlet can be connected to the sewers and / or to a purification installation 4 to treat the outgoing water flow.
- Other solutions could of course be considered.
- each module Mi of the system comprises an air inlet to allow the system to take air to be decontaminated at several inlet points over the entire height of the column (incoming air flows F1_air_in , F2_air_in, Fn air in).
- Each module of the system can include an air outlet to evacuate the air which it has just treated and decontaminated (outgoing air flows F1_air_out, F2_air_out, Fn_air_out).
- FIG. 9 illustrates the assembly of two modules M1 and M2 each having a helical shape and makes it possible to visualize the different flows present.
- the module M1 receives through its opening 40_1 an air flow F1 air in and the water flow F_eau via the input F_eau_in.
- This module M1 evacuates through its opening 41 1 the air flow F1_air_out which is treated and cleaned up.
- the water flow F_eau continues its path in the second module M2.
- a second air flow F2_air_in is injected into the module M2 through the opening 40_2 and the air flow F2_air_out processed by this module M2 comes out through the opening 41_2.
- the water flow F_eau continues on its way, otherwise it is sent to a treatment system 4.
- the row i module may include a ring 50 to collect the water flow. It also comprises the air outlet for the outgoing air flow Fi air out of this module Mi, located upstream of this ring 50.
- the ramp of the module of row i + 1 is connected to said ring to recover the flow. of water F_water in the system.
- the air inlet (air flow Fi + 1_air_in) of the module of row i + 1 is positioned downstream of said ring 50.
- the assembly from one module to another is carried out by means of mechanical connection means.
- These mechanical connection means can include complementary forms of male / female type arranged at each upper and lower border of a module.
- each module Mi of rank i comprises first so-called upstream mechanical connection means at its upper border and to be assembled with the module of rank i + 1, the module of rank i comprises second so-called downstream mechanical connection means at its lower border.
- Electrical connection means can thus be provided on each module of rank i to ensure the electrical continuity of each of its electrodes with the corresponding electrode of the module of row i-1 and with the corresponding electrode of the module of row i + 1. Like the mechanical connection means, these electrical connection means will be called upstream and downstream to connect respectively to the upstream module and to the downstream module.
- the system also includes:
- the system for generating the water flow F_eau_in at the water inlet of the row 1 module of the system can be designed based on one of the following two solutions, each comprising several variants.
- a pump is arranged to suck the flow of water F_eau and inject it into the system.
- the sucked water can be taken from a drinking water circuit or from a "gray" water circuit after having been filtered to operate as an open circuit.
- the air pollution control system of the invention may include a water circuit operating in a closed circuit.
- the water flow F_eau is thus generated by this internal water circuit operating in a closed circuit, in which the water, charged with particles and gases, is taken at the foot of the system and treated before reinjection at the top by means of the pump.
- the water flow F_eau can be directly obtained from the rainwater coming from a tank placed above the system to allow the water to flow in the pipe by gravity.
- This tank can in particular be a flexible storage tank, made from a textile coated with polymer and generally used against the risk of fire or for storing drinking water. It can also be connected, like a rainwater descent, to an overflow placed on a roof or on a terrace or any other pre-existing rainwater collection structure.
- hybrid solutions can be considered depending on the rainfall intensity of the place where the pollution control system is installed, a variant resulting from the first solution described only intervening to fill a deficit of water stored in a variant of the second solution operating from rainwater.
- water flow regulation points can also be provided between each module of the system.
- each air stream can be achieved by suction.
- a pump or a fan 6 can be connected to the base of the system to generate each air flow Fi air in by suction in the whole system.
- This pump or this fan 6 can be connected to the air outlet of the inlet duct 60 of the row n module located at the base of the system, the latter in fact being connected to the air outlets of each module and therefore at their respective air inlet.
- the section of the inlet duct 60 can increase from the highest module to the lowest module, over the entire length of the system to compensate for the pressure drops along the column and thus make it possible to maintain an air flow rate at process identical at the level of each module.
- the voltage generator G is intended to apply a voltage between each first electrode 33 and each second electrode 34 of each module Mi to establish the electrostatic field E necessary to precipitate the particles in the film of water.
- the voltage generator G is connected to the second electrode 34 of a single module of the system, the electrical continuity of the second electrode being ensured along the system. This could also be the case if the first electrode of each module is continuous over the entire length of the module.
- the system may include a device 5 intended to charge upstream the particles present in the air to be decontaminated, so as to better ensure their precipitation by electrostatic effect.
- the device may include at least one discharge electrode consisting of a wire or a point brought to high voltage and producing in its vicinity an ionization of the air to be decontaminated.
- This type of device 5 is well known in the state of the art. This device is for example arranged upstream of each air inlet of the system in order to charge the particles of the air to be decontaminated.
- each module of the system of the invention can be made so as to have at least two conduits 30.1, 30.2, thus forming two helical flow ramps, wound around the same axis.
- the two ramps can be identical and offset in height with respect to one another, as shown diagrammatically in FIG. 1 1.
- the other characteristics of the invention can be applied to this specific architecture. Certain means could be pooled for the two ramps of the system, in particular the duct 60, the air flow generation system, the water flow generation system, the voltage generator, etc. In the same space, it It will thus be possible to increase the processing capacity of the system.
- the system can also integrate a control and processing unit UC as well as a communication system allowing it to communicate, via a wired or wireless link with a central unit UCC.
- the system is therefore communicating and its use can be controlled in a manner adapted to the level of pollution present or as a function of other measured parameters.
- the central unit UCC can thus be brought to manage a complete depollution installation comprising several systems dispersed (1_1, 1_2, 1_3 in FIG. 12) in different places.
- each system must be able to be commanded to act quickly and intensively following a pollution incident.
- a judicious network of systems will make it possible to intervene as close as possible to the incident by controlling one or more of the systems in an appropriate manner.
- V_air, V_eau air flow and water flow control valves may be provided in the system to regulate the air flow and water flow at each system air inlet and the water flow. system water inlet. These valves can be controlled directly by the system control and processing unit UC.
- the 1_x system can integrate sensors 70 on the modules, providing the level of particulate and gas pollution as well as the conditions of pressure, temperature and humidity. These measurement data can be sent to the control and processing unit UC to implement the regulation. The control and processing unit can then regulate the power supply which conditions the voltage of the electrodes of each module, that of the various fluidic adjustment devices as well as of the means for generating the air flow (pump and / or fan). to adjust the air flow in the system.
- the system of the invention can be supplied electrically, in whole or in part, by solutions of the photovoltaic PV and / or wind type.
- each Mi module can be coupled or even covered with solar panels to ensure the power supply of some of these components, in particular:
- the means for generating the air flow that is to say the fan or the pump;
- the voltage generator G which polarizes the electrodes;
- the means for generating the water flow which may for example include a rainwater reserve fitted on a roof or a pump intended to convey water to the top of the column;
- the invention thus has many advantages, among which:
- the film of water descending by gravity on a helical ramp allows the continuous removal of the deposit of particles, without external intervention;
- the water film used makes it possible to minimize the risks of particle re-entrainment, these risks being known in so-called dry precipitation collection systems;
- the system also allows the capture of soluble gases, which the so-called dry precipitation collection systems do not allow;
- the helical configuration results in a small footprint while maximizing the residence time of particles and gases in the space intended to trap them; this configuration therefore makes it possible to maximize collection yields;
- tubular configuration offers significant compactness for urban use. Modules placed in series make it possible to form a vertical column able to match the height of buildings, in a reduced horizontal footprint;
- the system can operate off-grid from the closest energy sources, namely those collectable on rooftops (photovoltaic and / or wind type) to ensure low operating costs;
Landscapes
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Gas Separation By Absorption (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1900710A FR3092012B1 (fr) | 2019-01-28 | 2019-01-28 | Module et système de dépollution d'air |
| PCT/FR2020/050079 WO2020157410A1 (fr) | 2019-01-28 | 2020-01-22 | Module et système de dépollution d'air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3917675A1 true EP3917675A1 (fr) | 2021-12-08 |
| EP3917675B1 EP3917675B1 (fr) | 2023-02-22 |
Family
ID=67441224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20705235.8A Active EP3917675B1 (fr) | 2019-01-28 | 2020-01-22 | Module et système de dépollution d'air |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3917675B1 (fr) |
| FR (1) | FR3092012B1 (fr) |
| WO (1) | WO2020157410A1 (fr) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4308038A (en) * | 1979-05-10 | 1981-12-29 | Santek, Inc. | Inertial-electrostatic wet precipitator |
| US4305909A (en) * | 1979-10-17 | 1981-12-15 | Peabody Process Systems, Inc. | Integrated flue gas processing system |
| US4597780A (en) * | 1981-06-04 | 1986-07-01 | Santek, Inc. | Electro-inertial precipitator unit |
| DE10132582C1 (de) * | 2001-07-10 | 2002-08-08 | Karlsruhe Forschzent | Anlage zum elektrostatischen Reinigen von Gas und Verfahren zum Betreiben derselben |
| US20100101417A1 (en) | 2008-10-28 | 2010-04-29 | Joseph Chung Kai Wong | Method and system for cleaning atmospheric pollution |
-
2019
- 2019-01-28 FR FR1900710A patent/FR3092012B1/fr not_active Expired - Fee Related
-
2020
- 2020-01-22 WO PCT/FR2020/050079 patent/WO2020157410A1/fr not_active Ceased
- 2020-01-22 EP EP20705235.8A patent/EP3917675B1/fr active Active
Also Published As
| Publication number | Publication date |
|---|---|
| FR3092012A1 (fr) | 2020-07-31 |
| WO2020157410A1 (fr) | 2020-08-06 |
| EP3917675B1 (fr) | 2023-02-22 |
| FR3092012B1 (fr) | 2020-12-25 |
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