KR20160119608A - Catalyst filter having function of removing carbon dust and fitering unit comprising the same and precipitation apparatus comprising the same - Google Patents

Catalyst filter having function of removing carbon dust and fitering unit comprising the same and precipitation apparatus comprising the same Download PDF

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KR20160119608A
KR20160119608A KR1020150048523A KR20150048523A KR20160119608A KR 20160119608 A KR20160119608 A KR 20160119608A KR 1020150048523 A KR1020150048523 A KR 1020150048523A KR 20150048523 A KR20150048523 A KR 20150048523A KR 20160119608 A KR20160119608 A KR 20160119608A
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South Korea
Prior art keywords
filter
carbon dust
filtering unit
process gas
dust
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KR1020150048523A
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Korean (ko)
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KR101765159B1 (en
Inventor
김효식
이지은
김용택
조수원
정석우
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고등기술연구원연구조합
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/0071—
    • 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
    • B01D53/86—Catalytic processes

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The present invention relates to a catalyst filter having a function of removing carbon dust, a filtering unit comprising the same, and to a dust collector comprising the same. According to one aspect of the present invention, a catalyst filter having a function of removing carbon dust is provided to an outer circumferential surface of the filtering unit of a dust collector for collecting and treating a treatment gas including carbon dust, and chemically converts the carbon dust precipitated in the filtering unit into a material in a liquid state.

Description

Technical Field [0001] The present invention relates to a catalytic filter having a carbon dust removing function, a filtering unit including the catalytic filter, and a dust collecting apparatus including the filtering filter. [0002] The present invention relates to a catalytic filter having a carbon dust removing function,

The present invention relates to a catalytic filter having a carbon dust removing function, a filtering unit including the catalytic filter, and a dust collecting apparatus including the same.

Generally, a dust collecting device is a device used to remove solid or liquid fine particles suspended in a process gas (raw gas) to be treated. The dust collecting device is a device for removing fine particles such as gravity, inertia force, centrifugal force, adhesion force, hydrophilic force, The particles can be collected by using an effective force for dust collection.

Among them, the dust collecting device for collecting the syngas generated in the high temperature and high pressure condition or the dust contained in the exhaust gas and other harmful substances can collect the dust using a plurality of filters made of metal or ceramic.

FIG. 1 is a view showing a conventional dust collecting apparatus, and FIG. 2 is a view showing a state where carbon dust is deposited on a surface of a filter provided in the dust collecting apparatus of FIG.

1 and 2, after the synthesis gas or the exhaust gas introduced through the inlet 2 of the dust collecting container 4 passes through the plurality of filters 1, only the dust-treated gas passes through the dust collecting container 4 And is discharged to the discharge port 5 at the upper side. At this time, the carbon dust 24 contained in the synthesis gas or the exhaust gas does not pass through the air gap of the filter 1 on the surface of the filter 1, and is deposited on the surface of the filter 1.

In order to remove the carbon dust 24 deposited on the surface of the filter 1 without passing through the filter 1 because of having particles larger than the air gap as described above, A cleaning operation was performed. At this time, the backwashing fluid was jetted from the jetting nozzle 8 on the upper side of the filter 1. The upper part of the filter 1 near the jetting nozzle 8 was smoothly backwashed smoothly, (1) In the case of the lower part, there is a problem that reverse cleaning is not smoothly performed.

The upper carbon dust desorbed from the filter 1 during the backwashing process may be re-deposited in the adjacent filter 1 to increase the differential pressure of the filter 1 and the carbon dust 24 may be removed from the filter 1 There is a problem that a bridging phenomenon connected between the filters 1 is generated and the filtration area of the filter 1 is reduced. In order to solve this problem, there is no practical alternative to installing the filter 1 having a larger filtration capacity, but it is also limited to install the filter 1 having a larger filtration capacity due to the space limitation.

Korean Patent No. 10-0357887

Embodiments of the present invention provide a catalytic filter capable of effectively removing deposited carbon dust and a dust collecting apparatus including the same.

According to an aspect of the present invention, there is provided a method for chemically converting the carbon dust deposited on an outer circumferential surface of a filtering unit of a dust collecting apparatus for dust collecting treatment containing a carbon dust into a gaseous substance A catalyst filter having a carbon dust removal function can be provided.

Further, a catalytic filter having a carbon dust removing function, which is detachably attached to a collecting filter constituting the filtering unit, can be provided.

The trapping filter may have a hollow cylindrical shape and may have an inner diameter larger than the outer diameter of the trapping filter so that the trapping filter in the form of a cylinder can be inserted, A catalyst filter having a removal function can be provided.

In addition, a catalytic filter having a carbon dust removal function including at least one metal catalyst component of platinum (Pt), ruthenium (Ru), and rhodium (Rh) which is active in the oxidation reaction may be provided.

In addition, the process gas may be provided with a catalytic filter having a carbon dust removing function including water vapor.

Further, a filtering unit including a catalytic filter having a carbon dust removing function according to any one of the above-described embodiments can be provided.

Further, a dust collecting apparatus including a catalytic filter having a carbon dust removing function according to any one of the above-described embodiments can be provided.

According to another aspect of the present invention, there is provided a dust collecting apparatus comprising: a dust collection container having an inlet through which a process gas containing carbon dust is introduced and an outlet through which the process gas from which the carbon dust is removed is discharged; And a filtering unit provided in the dust container and filtering the process gas with a purge gas, wherein the filtering unit comprises: a collecting filter for collecting the object to be collected contained in the process gas; And a catalytic filter provided on an outer circumferential surface of the collecting filter and chemically converting the carbon dust deposited on the filtering unit into a gaseous substance.

The dust collecting apparatus may further include a backwashing unit provided above the filtering unit, for spraying high-pressure backwashing fluid to the filtering unit to remove carbon dust deposited on the filtering unit.

Further, it is also possible to provide a dust collecting apparatus further comprising a water vapor supply unit for mixing the process gas with water vapor.

Embodiments of the present invention can provide a catalytic filter capable of effectively removing deposited carbon dust and a dust collecting apparatus including the same.

1 is a view showing a conventional dust collecting apparatus.
FIG. 2 is a view showing a carbon layer deposited on the filter surface of the dust collecting apparatus of FIG. 1. FIG.
3 is a view illustrating a dust collecting apparatus according to an aspect of the present invention.
FIG. 4 is a view showing a state where a catalytic filter according to an aspect of the present invention is coupled to a filtering unit provided in the dust collecting apparatus of FIG. 3;
FIG. 5 is a view showing a state in which carbon dust deposited on the surface of the filtering unit of FIG. 3 is removed.
Fig. 6 is a conceptual diagram showing a state where the process gas passes through the filtering unit of Fig. 3; Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 3 is a view illustrating a dust collecting apparatus according to one aspect of the present invention, and FIG. 4 is a view showing a state where a catalytic filter according to an aspect of the present invention is coupled to a filtering unit provided in the dust collecting apparatus of FIG.

In the present embodiment, an object to be collected and removed by a dust collecting apparatus such as solid state dust or fluid state is referred to as a dust collecting object, a gas containing the dust is referred to as a 'processing gas' The processing gas from which the dust-collecting object has been removed is referred to as a " purifying gas ".

Further, the process gas according to this embodiment means a gas containing carbon such as a syngas or an exhaust gas, and is not limited to a syngas or an exhaust gas.

3 and 4, the dust collecting apparatus 10 according to an aspect of the present invention includes a dust collecting container 100 and a filtering unit 200.

The dust collecting container 100 may have a cylindrical shape having a receiving space formed therein and a cylindrical shape having a height larger than a diameter in order to improve the dust collecting effect of the process gas. An inlet 110 for introducing a process gas into the dust collecting container 100 is provided in the upper part of the dust collecting container 100 and a discharge port 120 for discharging the process gas, May be provided.

Generally, the process gas flowing into the dust container 100 is provided at a high temperature and a high pressure, so that the dust container 100 can have a strong structural strength capable of withstanding the high temperature and high pressure of the process gas. However, the structure and shape of the dust collecting container 100, the position of the inlet 110, and the position of the outlet 120 may vary depending on the type and condition of the process gas.

The filtration unit 200 may be installed vertically by the filtering unit installation member 140 and the backwashing unit 130 may be provided above the filtration unit 200 at the center of the dust collection container 100 have. The backwashing unit 130 is for removing the particulate matter 20 deposited on the surface of the filtering unit 200 or the particulate matter deposited inside the filtering unit 200. Specifically, the backwashing unit 130 injects an inert fluid such as nitrogen as a backwash fluid into the filtering unit 200 at a high pressure to remove the deposited carbon dust 20 or the object to be collected from the filtering unit 200 The filtering unit 200 can be cleaned.

The backwashing unit 130 includes a backwashing fluid transfer pipe 131 through which the backwashing fluid is transferred, a jetting nozzle 132 for jetting the backwashing fluid at a high pressure after receiving the backwashing fluid from the backwashing fluid transfer pipe 131 ), And a valve 133 for controlling whether the backwash fluid is supplied or sprayed. However, the backwashing unit 130 may have a variety of structures that can clean the filtering unit 200 in addition to the structures described above.

The filtering unit 200 may include a trapping filter 210 for trapping the object to be trapped in the process gas and desorbing the carbon dust 20, The catalytic filter 220 can be detachably mounted on the surface. The filtering unit 200 may include various filtering members in addition to the collecting filter 210 described above as a filter for collecting the object to be collected.

The trapping filter 210 may be a filtering member having a hollow tube shape. For example, the trapping filter 210 may be a mesh filter composed of multiple matrixes of multiple layers of metal mesh. As the trapping filter 210 has a hollow tube shape, a flow path through which the purge gas from which the object to be collected is removed can be provided to the discharge port 120 on the upper side.

The size of the voids of the trapping filter 210 may vary depending on the size of the dust-collecting object to be collected, but it is smaller than the size of the carbon dust 20 contained in the process gas.

The catalyst filter 220 may be provided on the outer peripheral surface of the collecting filter 210.

The catalyst filter 220 is a filtering member having a function of removing the carbon dust 20 and is made of a metal catalyst component such as platinum (Pt), ruthenium (Ru), rhodium (Rh) And may be fabricated by carrying it on a mesh by ion deposition or the like. The catalytic filter 220 can act as a catalyst to cause the oxidation reaction between the carbon dust 20 and the water vapor and thus the solid carbon dust 20 reacts with water vapor to form gaseous monoxide of carbon (CO) or carbon dioxide (CO 2) it can be chemically converted.

[Chemical Formula]

C (s) + H 2 0? CO (g) + H 2 (g)

C (s) + 2H 2 O? CO 2 (g) + 2H 2 (g)

The catalyst filter 220 may be mounted on the outer circumferential surface of the collecting filter 210 and the collecting filter 210 and the catalyst filter 220 may be coupled by the attaching / . For example, the catalytic filter 220 has an inner diameter larger than the outer diameter of the trapping filter 210 so that the cylindrical trapping filter 210 can be inserted, and the trapping filter 210 is inserted into the inner diameter. (Not shown).

The attachment / detachment member 230 is inserted between the trapping filter 210 and the catalyst filter 220 such as a gasket in addition to the general fastening member to remove the gap between the catalyst filter 220 and the trapping filter 210 To be engaged with each other. That is, the catalyst filter 220 and the collecting filter 210 can be coupled to each other in a vertically-pressed manner with the attaching / detaching member 230 interposed therebetween.

Meanwhile, although not shown, the dust collecting apparatus 10 according to an aspect of the present invention may further include a water supply unit (not shown) capable of mixing the process gas with water vapor. The water vapor supply unit may supply water vapor in such a manner as to spray water vapor to the process gas before the process gas is introduced into the dust container 100. In this case, the removal efficiency of the carbon dust contained in the process gas can be increased.

Hereinafter, the operation and effects of the dust collecting apparatus according to one aspect of the present invention will be described.

FIG. 5 is a view showing a state in which carbon dust deposited on the surface of the filtering unit of FIG. 3 is removed, and FIG. 6 is a conceptual view showing a state in which the processing gas passes through the filtering unit of FIG.

5 and 6, a dust collecting apparatus 10 according to an aspect of the present invention is introduced with a process gas including carbon dust 20 through an inlet 110 provided below the dust collecting container 100. Since the process gas flowing into the lower inlet 110 is moved toward the relatively low pressure outlet 120, the process gas flows through the filtering unit 200 at the center and is discharged to the outlet 120 at the upper side. Respectively.

When the processing gas introduced into the filtering unit 200 is sequentially passed through the catalytic filter 220 and the collecting filter 210, the object to be collected contained in the processing gas is collected by the catalytic filter 220 and the collecting filter 210 And the converted purge gas can be moved upward along the flow path formed inside the trapping filter 210. [ The purge gas moved upward may be discharged through the discharge port 120.

The carbon dust 20 having a particle size larger than that of the catalyst filter 220 and the trapping filter 210 may be deposited on the outer circumferential surface of the filtering unit 200 and the carbon dust 20 may be deposited, thereby causing the problem that the pores of the filtering unit 200 are clogged. In this case, the dust collecting apparatus 10 according to the present embodiment is configured such that the metal catalyst components such as platinum (Pt) ruthenium (Ru) and rhodium (Rh) by catalytic reaction of water vapor (H 2 0) it included in the converted carbon monoxide or carbon dioxide in the solid state to the gas state.

The carbon gas converted as the carbon dust 20 is converted into a gas such as carbon dioxide or carbon monoxide sequentially passes through the gaps between the catalyst filter 220 and the collecting filter 210, The carbon dust 20 deposited on the filtering unit 200 can be removed.

The dust collecting apparatus 10 according to the present embodiment can remove the carbon dust 20 from the filtering unit 200 by the catalytic filter 220 so that the filtering effect of the filtering unit 200 can be maintained for a long time, So that the service life of the filtering unit 200 can be prolonged. Further, the number of backwashing operations by the backwashing unit 130 can be reduced, and the operation of the dust collecting apparatus 10 can be continuously performed.

Since the catalytic filter 220 is detachably attached to the trapping filter 210, only the catalytic filter 220 according to the present embodiment is attached to the trapping filter of the dust collecting apparatus 10, which is conventionally used. Can be implemented.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, , And should be interpreted as having the broadest range according to the basic idea disclosed in this specification. Skilled artisans may implement a pattern of features that are not described in a combinatorial and / or permutational manner with the disclosed embodiments, but this is not to depart from the scope of the present invention. It will be apparent to those skilled in the art that various changes and modifications may be readily made without departing from the spirit and scope of the invention as defined by the appended claims.

10: Dust collector 20: Carbon dust
100: dust collecting container 110: inlet
120: outlet 130: backwash unit
200: filtering unit 210: collection filter
220: catalyst filter 230: removable member

Claims (10)

A method for chemical conversion of the carbon dust deposited on the filtering unit into a gaseous substance, the process comprising the steps of:
Catalytic filter with carbon dust removal function. The method according to claim 1,
And is detachably mounted on a collecting filter constituting the filtering unit
Catalytic filter with carbon dust removal function. 3. The method of claim 2,
Wherein the trapping filter comprises:
The inside is in the form of a hollow cylinder,
The filter having an inner diameter larger than the outer diameter of the trapping filter so that the trapping filter of the cylindrical shape can be inserted,
Catalytic filter with carbon dust removal function. The method according to claim 1,
(Pt), ruthenium (Ru), and rhodium (Rh), which are active in the oxidation reaction,
Catalytic filter with carbon dust removal function. The method according to claim 1,
Wherein the process gas comprises water vapor
Catalytic filter with carbon dust removal function. A filtering unit comprising a catalytic filter having a carbon dust removal function according to any one of claims 1 to 5. A dust collector comprising a catalytic filter having a carbon dust removal function according to any one of claims 1 to 5. A dust collecting container having an inlet through which a process gas containing carbon dust is introduced and an outlet through which the process gas from which the carbon dust is removed is discharged; And
And a filtering unit provided in the dust container and filtering the process gas with a purge gas,
Wherein the filtering unit comprises:
A collecting filter for collecting the object to be collected contained in the process gas; And
And a catalytic filter provided on an outer circumferential surface of the collecting filter for chemically converting the carbon dust deposited on the filtering unit into a gaseous substance
cyclone. 9. The method of claim 8,
Further comprising a backwashing unit provided above the filtering unit, for spraying high-pressure backwash fluid to the filtering unit to remove carbon dust deposited on the filtering unit. 9. The method of claim 8,
Further comprising a water vapor supply unit for mixing the process gas with water vapor
cyclone.
KR1020150048523A 2015-04-06 2015-04-06 Catalyst filter having function of removing carbon dust and fitering unit comprising the same and precipitation apparatus comprising the same KR101765159B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190059477A (en) * 2017-11-23 2019-05-31 고등기술연구원연구조합 Filtering system for removing fine dust and noxious gas synchronously

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010014594A (en) 1999-07-30 2001-02-26 다까다 요시유끼 Filter apparatus with backwashing mechanism

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Publication number Priority date Publication date Assignee Title
JP2003056328A (en) * 2001-08-21 2003-02-26 Tanaka Kikinzoku Kogyo Kk Exhaust gas disposing device
JP4124321B2 (en) * 2002-03-01 2008-07-23 西松建設株式会社 Exhaust gas treatment method and exhaust gas treatment apparatus
JP4848662B2 (en) * 2005-04-07 2011-12-28 パナソニック株式会社 How to use exhaust gas purification material
JPWO2010041741A1 (en) * 2008-10-09 2012-03-08 本田技研工業株式会社 Exhaust gas purification device
KR101218587B1 (en) * 2012-05-15 2013-01-04 한국기계연구원 Exhaust gas reduction apparatus comprising electric heating type foam filter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010014594A (en) 1999-07-30 2001-02-26 다까다 요시유끼 Filter apparatus with backwashing mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190059477A (en) * 2017-11-23 2019-05-31 고등기술연구원연구조합 Filtering system for removing fine dust and noxious gas synchronously

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