KR101827600B1 - Apparatus for treating exhaust gas - Google Patents

Apparatus for treating exhaust gas Download PDF

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KR101827600B1
KR101827600B1 KR1020150084872A KR20150084872A KR101827600B1 KR 101827600 B1 KR101827600 B1 KR 101827600B1 KR 1020150084872 A KR1020150084872 A KR 1020150084872A KR 20150084872 A KR20150084872 A KR 20150084872A KR 101827600 B1 KR101827600 B1 KR 101827600B1
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South Korea
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region
exhaust gas
processing module
particulate matter
voltage
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KR1020150084872A
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Korean (ko)
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KR20160148745A (en
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김용진
김학준
한방우
우창규
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한국기계연구원
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75—Multi-step processes
    • 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
    • B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
    • B01D53/323—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
    • 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
    • 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
    • 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
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides

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

Abstract

An exhaust gas treatment apparatus for treating an exhaust gas containing nitrogen oxides, sulfur oxides, and particulate matter, the exhaust gas treatment apparatus comprising: A grounding portion including a first region and a second region, in which the exhaust gas travels in the order of a first region and a second region; A first processing module disposed in the first region for oxidizing nitrogen monoxide contained in the polluted gas to nitrogen dioxide by ozone generated when an AC voltage is applied and generating a plasma and charging the particulate matter; And a second process for treating the nitrogen oxide and the sulfur oxide by spraying the reducing agent aqueous solution and collecting the particulate matter by forming an electric field between the ground electrode and the ground unit, And a module. It is an object of the present invention to provide an exhaust gas processing apparatus capable of more compactly providing an apparatus by continuously treating sulfur oxides, nitrogen oxides and particulate matter contained in exhaust gas discharged from an industry in a single space.

Description

[0001] APPARATUS FOR TREATING EXHAUST GAS [0002]

The present invention relates to an exhaust gas treating apparatus, and more particularly, to an exhaust gas treating apparatus using ozone capable of continuously treating sulfur oxides, nitrogen oxides and particulate matter discharged from an industry in a single space.

Generally, the pollutant gas emitted after being used in the Daegu Moin incinerator, combustion facility, ship, and semiconductor manufacturing process contains most harmful substances and is discharged after being purified through appropriate treatment.

Since the exhaust gas contains a variety of harmful substances, it can not be completely treated unless it is treated through various processes. Thus, conventionally, various kinds of treatment devices are combined and utilized. However, recently, It is difficult to treat the polluted gas to such a degree that the existing treatment apparatus alone can comply with such regulations.

Particularly, when nitrogen oxide and particulate matter (PM) are mixed with each other, it is difficult to simultaneously treat them. In order to solve this problem, a separate apparatus for identifying pollutants to be treated was prepared, and the polluted gas was sequentially transferred for each apparatus.

Fig. 1 shows an example of a conventional polluted gas processing apparatus.

As shown in FIG. 1, in the case of the conventional pollution gas treating apparatus 10, the sulfur oxides are treated with a flue gas desulfurization (FGD) 11, and then nitrogen oxides are treated with selective catalytic reduction Reduction treatment (SCR) 12, and the particulate matter is treated by the dry electrostatic precipitator 14.

However, the above-described flue gas desulfurization apparatus 11 and selective catalytic reduction apparatus 12 are designed in such a manner that the pollutants contained in the polluted gas are treated while the two processes of denitrification and desulfurization, The initial investment cost and the operating cost were increased, and the optimum process combination of denitrification and desulfurization process was required.

Particularly, in the case of the flue gas purifying device 11, the overall scale becomes large, and there are many problems in use due to an increase in back pressure.

Further, in the case of the selective catalytic reduction device 12 used for the treatment of nitrogen oxides, since the catalyst is operated only at a high temperature of at least 400 ° C, the operation condition is difficult and the expensive catalyst 13 must be used, There is a problem that it is consumed.

In addition, since the exhaust gas desulfurization apparatus, the selective catalytic reduction apparatus, and the dry electrostatic precipitator are all required to process both nitrogen oxides, sulfur oxides, and particulate matter, the installation space is excessively required.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide an exhaust gas purifying apparatus capable of continuously supplying sulfur oxides, nitrogen oxides and particulate matter And an exhaust gas processing device capable of performing exhaust gas processing.

According to the present invention, there is provided an exhaust gas treatment apparatus for treating an exhaust gas containing nitrogen oxide, sulfur oxides and particulate matter according to the present invention, the exhaust gas treatment apparatus comprising: And a second region, wherein the exhaust gas moves in the first region and the second region in order; A first processing module disposed in the first region for oxidizing nitrogen monoxide contained in the polluted gas to nitrogen dioxide by ozone generated when an AC voltage is applied and generating a plasma and charging the particulate matter; And a second processing module disposed in the second area and configured to collect the particulate matter charged by the first processing module by applying an electric direct voltage and forming an electric field with the ground part In the exhaust gas treatment apparatus.

Here, it is preferable that the first processing module receives oxygen from the oxygen supply part and oxidizes the oxygen to ozone when the plasma is generated.

Here, the first processing module may include: a body portion having a first path through which the oxygen moves; And protrusions protruding from the side surface of the body portion and having a through hole through which the oxygen is discharged at a distal end and a second path through which the first path and the through hole are communicated.

The first processing module may further include an alternating voltage application unit configured to apply an alternating voltage to at least one of the body and the protrusion.

Here, the second processing module may include: a discharge plate disposed in the second region and to which a DC voltage is applied; And a DC voltage applying unit for applying a DC voltage to the discharge plate.

Here, the reducing agent spraying unit injects the reducing agent aqueous solution to the exhaust gas side passing through the first region and the second region; And a water film formation inducing unit for injecting the cleaning liquid to form a water film on the surface corresponding to the at least one pair of ground units.

Here, it is preferable that the water film formation induction portion is provided in a number corresponding to the ground portion.

According to the present invention, by continuously treating sulfur oxides, nitrogen oxides, and particulate matter contained in the exhaust gas discharged from an industry in a single space, it is possible to provide an exhaust gas treating apparatus capable of more compactly providing an apparatus for treating exhaust gas Device is provided.

1 is a conceptual diagram schematically showing a conventional contaminated gas processing apparatus,
2 is a perspective view of an exhaust gas processing apparatus according to an embodiment of the present invention,
FIG. 3 is a detailed view of the first area of FIG. 2,
4 is a detailed view of the second area of FIG. 2,
5 is a schematic view of an exhaust gas treating apparatus according to an embodiment of the present invention,
6 to 8 are operational states of an exhaust gas treating apparatus according to an embodiment of the present invention.

Prior to description, elements having the same configuration are denoted by the same reference numerals in different embodiments, and explanations will be made of configurations that are different from those of the other embodiments in other embodiments.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an exhaust gas processing apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a perspective view of an exhaust gas treatment apparatus according to an embodiment of the present invention, FIG. 3 is a detailed view of the first region of FIG. 2, FIG. 4 is a detailed view of the second region of FIG. 1 is a schematic view of an exhaust gas treating apparatus according to an embodiment of the present invention.

2 to 5, an exhaust gas processing apparatus according to an embodiment of the present invention includes a ground unit 110, a first processing module 120, a second processing module 130, a reducing agent dispensing unit 140 And a water film formation induction unit 150. [

The grounding unit 110 is electrically grounded to provide a space through which the exhaust gas moves, and is configured to charge and collect particulate matter. At this time, the grounding unit 110 includes the first region 111 and the second region 112 in a region formed by being opposed to each other.

The pair of grounding portions 110 are spaced apart from each other so as to face each other to form a space between the pair of grounding portions to flow the exhaust gas flowing into the space.

The first region A1 is an area including the first processing module 120 that oxidizes nitrogen monoxide contained in the exhaust gas to nitrogen dioxide and charges particulate matter.

Specifically, the nitrogen monoxide contained in the exhaust gas passing through the first region (A1) is oxidized to nitrogen dioxide by the ozone supplied from the first processing module (120). The particulate matter contained in the exhaust gas is charged by an electric field formed between the first processing module 120 to which a high voltage is applied and the grounding portion 110 in an electrically grounded state.

Through this, the nitrogen dioxide, the charged particulate matter and the sulfur oxide are transferred to the second region A2 to be discussed.

The second region 2 is an area including a second processing module 130 for collecting particulate matter charged by the first region.

Specifically, the charged particulate matter passing through the first region A1 forms an electric field between the second processing module 130 and the grounding portion 110 to which a high voltage is applied, and collects the charged electric field on the grounding portion 110 side. At this time, the particulate matter collected in the grounding part 110 is removed by the water film formation induction part 150, and the nitrogen dioxide and sulfur oxides passing through the first area A1 are discharged into the reducing agent spraying part 140 for spraying the aqueous reducing agent solution .

That is, while the exhaust gas passes through the first region A1 and the second region A2, the nitrogen oxide, the sulfur oxide, and the particulate matter contained in the exhaust gas can be all treated.

Therefore, the apparatus can be more compactly provided by sequentially treating sulfur oxides, nitrogen oxides, and particulate matter contained in the exhaust gas in a single space by the exhaust gas treating apparatus 100 according to the present invention.

The first processing module 120 is disposed in the first region A1, oxidizes nitrogen oxides, and charges particulate matter. Specifically, oxygen is oxidized to ozone during plasma generation with the grounding unit 110, and the ozone is provided to the spacing space formed by the pair of grounding units 110. The first processing module 120 includes an oxygen supplying part 121, a body part 122, a protruding part 123 and an AC voltage applying part 124.

The oxygen supply unit 121 is configured to supply oxygen into the first processing module 120 to generate ozone. Here, the oxygen supply unit 121 may be supplied with oxygen by receiving oxygen from an oxygen storage tank storing a high concentration of oxygen, or by separating oxygen from outside air, but the method is not limited thereto.

The body part 122 receives oxygen from the oxygen supplying part 121 and supplies the oxygen to the grounding part 110 side. A first path 122a through which oxygen moves is formed in the body part 122. A first path 122a is connected to the oxygen supply part 121 to supply oxygen from the oxygen supply part 121, (123).

The projecting portion 123 protrudes from the outer surface of the body portion 122 toward the grounding portion 110. The protrusion 123 is formed at a distal end of the protrusion 123 to form a through hole 123b for discharging oxygen and includes a second path 123a for interconnecting the first path 122a and the through hole 123b, .

Specifically, the oxygen supplied through the oxygen supply unit 121 moves to the through-hole 123b through the first path 122a and the communicated second path 123a. That is, the oxygen delivered through the first path 122a is discharged from the through hole 123b to the ground 110 through the second path 123a.

At this time, since the body portion 122 or the protrusion 123 acts as a discharge electrode, an electric field is formed between the body portion 122 and the grounding portion 110 when a voltage is applied.

The alternating voltage application unit 124 may be installed in at least one of the body portion 122 and the protrusion 123. The alternating voltage application unit 124 may be provided on the body portion 122 or the protrusion 123, Is connected to the end of the body portion 122. [

The AC voltage applying part 124 is electrically connected to the body part 122 to apply an AC voltage to the body part 122. Specifically, when AC voltage is applied to the body portion 122, plasma is generated between the body portion 122 and the grounding portion 110. When the oxygen supplied through the oxygen supply unit 121 is discharged to the ground unit 110, oxygen is oxidized to ozone by the plasma formed between the body unit 122 and the ground unit 110. At this time, the generated ozone oxidizes the nitrogen monoxide contained in the exhaust gas into nitrogen dioxide.

Further, the plasma formed by the AC voltage applying unit 124 charges the particulate matter contained in the exhaust gas.

The second processing module 130 receives the DC voltage, collects particulate matter, and removes nitrogen oxides and sulfur oxides. The second processing module 130 includes a discharge plate 131 to which a DC voltage is applied and a DC voltage applying unit 132 to apply a DC voltage to the discharge plate 131.

The discharge plate 131 is configured to collect particulate matter in the grounding unit 110 when a DC voltage is applied between the pair of grounding units 110.

Specifically, the discharge plate 131 is installed along a direction parallel to the grounding portion 110 between a pair of grounding portions 110 spaced apart from each other. When a DC voltage is applied to the discharge plate 131 from the DC voltage applying unit 132, an electric field is formed between the grounding unit 110 and the ground.

 The direct-current voltage applying unit 132 is configured to apply a direct-current voltage to the discharge plate 131. That is, when an electric field is formed between the discharge plate 131 and the grounding unit 110 by the DC voltage applying unit 132, the particulate matter charged by the first processing module 120 moves toward the grounding unit 110 And is collected in the grounding portion 110.

The reducing agent spraying unit 140 is configured to spray an aqueous solution containing a reducing agent to the exhaust gas side to treat sulfur oxides and nitrogen oxides contained in the exhaust gas.

Specifically, a reducing agent aqueous solution is injected from the reducing agent spraying part 140 provided outside the grounding part 110 to the exhaust gas side in a region where the pair of grounding parts 110 are opposed to each other, and nitrogen oxides and sulfur oxides . When the aqueous solution of the reducing agent is sprayed on the nitrogen oxide and the sulfur oxide, the nitrogen dioxide is hydrophilic and easily reacts with the aqueous reducing agent.

Since the nitrogen dioxide is hydrophilic, it can be treated by spraying water, but it is preferable that the aqueous solution containing the reducing agent is injected through the reducing agent sprayer 140 to improve the treatment efficiency. That is, the reducing agent spraying unit 140 includes a reducing agent aqueous solution containing at least one of sodium sulfite (Na 2 SO 3 ), sodium sulfide (Na 2 S), sodium hydroxide (NaOH) and urea.

The water film formation induction unit 150 is configured to form a water film on the surface where the grounding unit 110 faces. At this time, the water film formation induction part 150 prevents the ground part 110 from being exposed in the first area A1 and removes the particulate matter collected on the ground part 110 in the second area A2.

Specifically, the water film formation induction unit 150 is provided at a position where the pair of ground units 110 are opposed to each other to spray the cleaning liquid toward the ground unit 110 to form a water film on one surface of the ground unit 110 as a whole. By preventing the grounding unit 110 from being exposed, it is possible to prevent the grounding unit 110 from being contaminated by the ozone supplied by the plasma formed between the first processing module 120 and the grounding unit 110, The particulate matter collected on the grounding part 110 side is removed by the electric field formed between the second processing module 130 and the grounding part 110.

At this time, the water film formation induction unit 150 is provided in a number corresponding to the number of the grounding units 110, and the cleaning agent is sprayed to the grounding units 110, but a water film can be formed on one surface of each grounding unit 110 If so, the number is not limited.

Meanwhile, as shown in FIG. 5, a plurality of exhaust gas treating apparatuses 100 according to an embodiment of the present invention are provided in parallel to remove a large amount of exhaust gas and contaminants in the exhaust gas .

Accordingly, by continuously treating the sulfur oxides, nitrogen oxides, and particulate matter contained in the exhaust gas discharged from the industry in a single space, it is possible to more compactly provide an apparatus for treating the exhaust gas.

Hereinafter, operation of the exhaust gas treating apparatus according to an embodiment of the present invention will be described.

6 to 8 are operational states of an exhaust gas treating apparatus according to an embodiment of the present invention.

6 to 8, the exhaust gas passes through the exhaust gas treating apparatus 100 according to an embodiment of the present invention, and nitrogen oxides and sulfur oxides and particulate matters contained in the exhaust gas are removed do. Specifically, the exhaust gas processing apparatus 100 is divided into a first region A1 and a second region A2, and the exhaust gas passing through the exhaust gas processing apparatus 100 is divided into a first region A1 and a second region A2. The contaminants are removed by sequentially passing through the second area A2.

First, oxygen is supplied to the first processing module 120 installed in the first area A1 through the oxygen supply part 121. [ Specifically, oxygen is supplied to the first path 122a of the first processing module 120, and the supplied oxygen is guided to the through-hole 123b through the second path 123a, And is discharged toward the grounding unit 110 side.

Since the grounding unit 110 is electrically grounded and a voltage is applied from the AC voltage applying unit 124 to the body 122 of the first processing module 120, Plasma is generated between the modules 120. Oxygen discharged from the through hole 123b is oxidized to ozone by the formed plasma.

Therefore, since the ozone exists between the grounding part 110 and the first processing module 120, the exhaust gas containing nitrogen oxide oxidizes nitrogen monoxide to nitrogen dioxide when passing through. In addition, since plasma is generated between the grounding unit 110 and the first processing module 120, particulate matter is charged when the exhaust gas passes through.

Next, as described above, the exhaust gas passing through the first region A1 moves to the second region A2 including nitrogen dioxide, sulfur oxide, and charged particulate matter.

The second region A2 includes a discharge plate 131 to which a high voltage is applied so that when a DC voltage is applied to the discharge plate 131 by the DC voltage applying unit 132, An electric field is formed between the grounding part 110 and the grounding part 110.

Thus, the charged particulate matter passing through the first region A1 is collected in the grounding portion 110 by the electric field formed in the second region A2.

The second region A2 is formed by the oxidizing nitrogen dioxide passing through the first region A1 by the reducing agent spraying portion 132 injecting the reducing agent aqueous solution into the second region A2, The cargo is removed upon contact with the reducing agent aqueous solution.

In addition, the water film formed by spraying the cleaning liquid by the water film formation induction unit 150 prevents the ground portion 110 of the first region A1 from being exposed and contamination of the ground portion 110 due to plasma generated ozone And the particulate matter collected on the surface of the grounding part 110 of the second area A2 is removed.

That is, the sulfur oxides, nitrogen oxides, and particulate matter contained in the exhaust gas are removed.

Accordingly, the exhaust gas containing contaminants can effectively remove contaminants as they sequentially pass through the first region A1 and the second region A2 of the exhaust gas treating apparatus 100 according to the present invention, The device can be implemented more compactly.

The scope of the present invention is not limited to the above-described embodiments, but may be embodied in various forms of embodiments within the scope of the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

100: An exhaust gas treating apparatus according to an embodiment of the present invention.
110: ground portion, 120: first processing module,
121: oxygen supply part, 122: body part,
122a: first path, 123: protrusion,
123a: second path, 124: AC voltage applying section,
130: second processing module, 131: discharge plate,
132: DC voltage applying section, 140: Reducing agent spraying section,
150: a water film formation induction portion A1: a first region,
A2: second region

Claims (7)

An exhaust gas treating apparatus for treating an exhaust gas containing nitrogen oxide, sulfur oxides and particulate matter,
A grounding portion electrically connected to the first region and the second region, the first region and the second region continuing in the region where the at least one pair is opposed to each other and the exhaust gas moves in the order of the first region and the second region;
A first processing module disposed in the first region for oxidizing nitrogen monoxide contained in the polluted gas to nitrogen dioxide by ozone generated when an AC voltage is applied and generating a plasma and charging the particulate matter; And
And a second processing module, disposed in the second region, for collecting the particulate matter charged by the first processing module by applying an electric direct voltage to the grounding portion,
The first processing module includes:
A body portion in which a first path through which oxygen moves is formed; And protrusions protruding from the side surface of the body portion and having a through hole through which the oxygen is discharged at a distal end and a second path through which the first path and the through hole are communicated,
Wherein the first processing module receives oxygen from the oxygen supply part and discharges the oxygen through the first path and the second path through the through hole of the protrusion toward the first area, And the oxygen discharged through the air is oxidized by ozone. delete delete The method according to claim 1,
The first processing module includes:
And an alternating voltage application unit configured to apply an alternating voltage to at least one of the body portion and the protruding portion. The method according to claim 1,
Wherein the second processing module comprises:
A discharge plate disposed in the second region and to which a DC voltage is applied; And
And a DC voltage applying unit for applying a DC voltage to the discharge plate. An exhaust gas treating apparatus for treating an exhaust gas containing nitrogen oxide, sulfur oxides and particulate matter,
A grounding portion electrically connected to the first region and the second region, the first region and the second region continuing in the region where the at least one pair is opposed to each other and the exhaust gas moves in the order of the first region and the second region;
A first processing module disposed in the first region for oxidizing nitrogen monoxide contained in the polluted gas to nitrogen dioxide by ozone generated when an AC voltage is applied and generating a plasma and charging the particulate matter; And
A second processing module, disposed in the second region, for collecting the particulate matter charged by the first processing module by applying an electric direct voltage to the grounding portion to generate an electric field;
A reducing agent spraying portion for spraying a reducing agent aqueous solution onto the exhaust gas side passing through the first region and the second region; And
And a water film formation inducing unit for injecting a cleaning liquid so that a water film is formed on the surface corresponding to the at least one pair of ground units. The method according to claim 6,
Wherein the water film formation induction portion is provided in a number corresponding to the ground portion.
KR1020150084872A 2015-06-16 2015-06-16 Apparatus for treating exhaust gas KR101827600B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101980876B1 (en) * 2019-02-13 2019-05-23 주식회사 가교테크 Dbd plasma exhaust gas reduction device

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Publication number Priority date Publication date Assignee Title
KR102013023B1 (en) * 2017-01-20 2019-08-22 한국기계연구원 Water spray type scrubber and precipitation method of using the same
KR102122253B1 (en) * 2017-01-25 2020-06-12 엘지전자 주식회사 Apparatus for treating exhaust gas
KR101930167B1 (en) 2017-07-18 2019-03-15 한국기계연구원 Apparatus for treating exhaust gas

Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2006150242A (en) 2004-11-30 2006-06-15 Mitsubishi Heavy Ind Ltd Air purification apparatus and air purifying method using it

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2006150242A (en) 2004-11-30 2006-06-15 Mitsubishi Heavy Ind Ltd Air purification apparatus and air purifying method using it

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101980876B1 (en) * 2019-02-13 2019-05-23 주식회사 가교테크 Dbd plasma exhaust gas reduction device
KR102051986B1 (en) 2019-02-13 2019-12-17 주식회사 가교테크 Dbd plasma air cleaner
WO2020166960A1 (en) * 2019-02-13 2020-08-20 주식회사 가교테크 Dbd plasma air purifier and exhaust gas reducing device

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