KR102614331B1 - Mobile system for regenerating voc - Google Patents

Abstract

The present invention provides an adsorption tank that uses a VOC adsorption and desorption filter to adsorb volatile organic compounds in contaminated air flowing in through an intake port and discharges the purified air through an exhaust port, and a first tank provided at each of the front and rear ends of the adsorption tank. and a mobile regeneration vehicle connected to a second connector and having a regeneration tank for processing the volatile organic compounds discharged from the adsorption tank, wherein the VOC adsorption and desorption filter is made of honeycomb-shaped activated carbon. Provides a volatile organic compound regeneration system.

Description

Mobile volatile organic compound regeneration system {MOBILE SYSTEM FOR REGENERATING VOC}

The present invention relates to a volatile organic compound regeneration system for treating volatile organic compounds (VOC) in polluted air.

Volatile Organic Compounds (VOC) are directly harmful to the human body and affect the atmospheric environment by becoming the cause of ozone and ultrafine dust through photochemical reactions.

Therefore, volatile organic compounds are regulated through the Air Quality Conservation Act and the Odor Prevention Act, and accordingly, they are used in printing facilities, painting facilities for automobiles and ships, textile dyeing facilities, paint manufacturing facilities, oil storage facilities, and chemical processing facilities. The permissible emission limit for volatile organic compounds generated and discharged into the atmosphere is notified to be less than 40ppm, and is a setting that requires reduction facilities for volatile organic compounds.

To treat these volatile organic compounds, they are usually divided into diffusion prevention methods, physical methods, chemical methods, and biological methods. Among the chemical methods, combustion methods include direct combustion (thermal oxidizer), catalytic oxidizer (catalytic oxidizer), and heat storage. It is divided into Regenerative Thermal Oxidizer and Regenerative Catalytic Oxidizer methods.

Typically, when there are multiple facilities generating polluted air, several facilities must be installed to treat volatile organic compounds using the regenerative combustion oxidation method or the thermal regenerative catalytic oxidation method, resulting in high facility and operating costs. There is a problem that hinders the installation of volatile organic compound reduction facilities.

KR 10-0827376 B1

The present invention aims to provide a mobile volatile organic compound regeneration system that can move to a facility that generates pollutants into the atmosphere and process volatile organic compounds adsorbed and fixed in the facility.

As a means to solve the above-described technical problem, the present invention is an adsorption tank that uses a VOC adsorption and desorption filter to adsorb volatile organic compounds in the polluted air flowing in through the intake port and discharges the purified air through the exhaust port, and A mobile regeneration vehicle connected to first and second connectors provided at the front and rear ends of the adsorption tank, respectively, and having a regeneration tank for processing the volatile organic compounds discharged from the adsorption tank, wherein the VOC adsorption and desorption filter includes, A mobile volatile organic compound regeneration system is provided, which is made of honeycomb-shaped activated carbon.

According to one embodiment, the mobile regeneration vehicle may further include a burner provided to form a high-temperature atmosphere so that the regeneration tank can combust the volatile organic compounds.

According to one embodiment, the regeneration tank may treat the volatile organic compounds using a thermal storage catalytic oxidation method.

According to one embodiment, the burner ignites fuel to heat air and provides it to the regeneration tank, and exhaust heat generated from the engine of the mobile regeneration vehicle may be provided to the burner as an additional heat source.

According to one embodiment, the burner may ignite fuel to heat the volatile organic compounds discharged from the adsorption tank and provide the volatile organic compounds to the regeneration tank.

According to one embodiment, it may further include a regenerator that stores the exhaust heat and provides the stored exhaust heat as an additional heat source to the burner.

According to one embodiment, the VOC adsorption and desorption filter contains 35 to 45% by weight of carbon powder with an average particle diameter of 1 to 40 ㎛ and an iodine adsorption capacity of 600 to 1200 mg/g, and 0.5 to 15% by weight of palygorskite and kaolin: It may be composed of a mixed powder containing 55 to 65% by weight of clay mineral powder mixed at a weight ratio of 1, 1 to 20 parts by weight of a binder and 50 to 70 parts by weight of a dispersion solvent based on 100 parts by weight of the mixed powder.

According to one embodiment, the adsorption tank further includes a first fan provided at the intake port of the adsorption tank to supply external air to the adsorption tank, wherein the adsorption tank removes the volatile organic compounds by external air supplied by the first fan. It can be cooled to a temperature that can adsorb and fix it.

According to one embodiment, it may further include a pre-treatment filter provided at the intake port of the adsorption tank to filter out foreign substances in the contaminated air flowing in through the intake port.

The mobile volatile organic compound regeneration system according to the present invention can move to a facility that generates pollutants into the air and process the volatile organic compounds adsorbed and fixed at the facility.

Therefore, by moving some of the volatile organic compound abatement facilities, there is no need to equip all volatile organic compound abatement facilities for each facility that generates polluted air, thus solving the problem of high facility costs and operating costs for the volatile organic compound abatement facility. .

1 is a block diagram of a mobile volatile organic compound regeneration system according to an embodiment of the present invention.
Figure 2 is a configuration diagram of a mobile regenerative vehicle according to an embodiment of the present invention.
Figure 3 is a configuration diagram of a mobile regenerative vehicle according to another embodiment of the present invention.
Figure 4 is a configuration diagram of a mobile regenerative vehicle according to another embodiment of the present invention.
Figure 5 is a configuration diagram of a mobile regeneration vehicle for cooling an adsorption tank according to an embodiment of the present invention.
Figure 6 is a configuration diagram of a mobile regeneration vehicle for cooling an adsorption tank according to another embodiment of the present invention.
Figure 7 is a step-by-step flowchart of the operation process of the mobile volatile organic compound recovery system according to an embodiment of the present invention.
Figure 8 is a diagram schematically showing the adsorption and desorption action of the VOC adsorption and desorption filter according to an embodiment of the present invention.

Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the attached drawings. However, identical or similar components will be assigned the same reference numbers regardless of reference numerals, and duplicate descriptions thereof will be omitted. The suffixes “unit” and “unit” for components used in the following description are given or used interchangeably only for the ease of preparing the specification, and do not have distinct meanings or roles in and of themselves. Additionally, in describing the embodiments disclosed in this specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed descriptions will be omitted. In addition, the attached drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed in this specification is not limited by the attached drawings, and all changes included in the spirit and technical scope of the present invention are not limited. , should be understood to include equivalents or substitutes.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms.

The above terms are used only for the purpose of distinguishing one component from another.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this specification, terms such as “comprise” or “have” are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

1 is a block diagram of a mobile volatile organic compound regeneration system according to an embodiment of the present invention.

As shown in Figure 1, the mobile volatile organic compound regeneration system (1) according to an embodiment of the present invention uses a VOC adsorption and desorption filter to remove volatile organic compounds (VOC; Volatile Organic Compounds) from contaminated air introduced through the intake port. It is connected to the adsorption tank 10, which adsorbs compounds and discharges purified air through the exhaust port, and the first and second connectors provided at the front and rear ends of the adsorption tank 10, respectively, to It may include a mobile regeneration vehicle (20) having a regeneration tank (30) for processing discharged volatile organic compounds.

The mobile regeneration vehicle 20 is a movable vehicle, and is preferably loaded with a regeneration tank 30.

Accordingly, in the mobile volatile organic compound regeneration system 1 according to an embodiment of the present invention, as shown in FIG. 7, the adsorption tank 10 removes the volatile organic compounds contained in the contaminated air introduced through the intake port. After the adsorption process (S10) of adsorption and fixation, the mobile regeneration vehicle 20 loading the regeneration tank 30 connects the regeneration tank 30 to the adsorption tank 10, and the regeneration tank 30 is adsorbed to the adsorption tank 10. A desorption process (S20) can be performed to desorb the volatile organic compounds and reduce the desorbed volatile organic compounds. Additionally, a cooling process (S30) can be performed to cool the adsorption tank 10 so that the adsorption tank 10 can adsorb and fix the volatile organic compounds again.

However, the mobile volatile organic compound regeneration system (1) according to an embodiment of the present invention is a mobile regeneration vehicle ( The regeneration tank 30 loaded in 20) may be connected to the adsorption tank 10, but the present invention is not limited to this.

Hereinafter, each component of the mobile volatile organic compound regeneration system (1) according to an embodiment of the present invention will be described in detail, divided into each process of the adsorption process (S10), desorption process (S20), and cooling process (S30). Let's take a look.

First, in order to perform the adsorption process (S10), as shown in FIG. 1, the contaminated air intake valve 91 provided on the contaminated air intake flow path 61 can be opened, and external contaminated air (dirty gas) can be released. ) may flow along the contaminated air intake flow path 61 through the open contaminated air intake valve 91 and flow into the adsorption tank 10 through the intake port of the adsorption tank 10.

In the adsorption tanks 121 and 122 according to an embodiment of the present invention, waste is usually generated in printing facilities, paint painting facilities for automobiles or ships, textile dyeing facilities, paint manufacturing facilities, oil storage facilities, chemical processing facilities, etc. and is discharged into the atmosphere. Contaminated air containing volatile organic compounds may be introduced.

The adsorption tank 10 may include an intake port through which contaminated air flows in, and an exhaust port through which purified air purified by adsorbing volatile organic compounds is discharged to the outside.

The contaminated air intake valve 91 of the contaminated air intake passage 61 connected to the intake port of the adsorption tank 10 is opened, and the volatile organics in the contaminated air flowing into the adsorption tank 10 along the contaminated air intake passage 61 are removed. The compounds can be treated, and the air purified by the volatile organic compounds treated by the adsorption tank 10 can be discharged to the outside along the purified air exhaust flow path 62 connected to the exhaust port of the adsorption tank 10. At this time, the purified air exhaust valve 94 provided on the purified air exhaust passage 62 may be opened.

To this end, the adsorption tank 10 may include a VOC adsorption and desorption filter that can adsorb, fix, and concentrate volatile organic compounds (VOCs) in polluted air.

Here, the VOC adsorption and desorption filter is 20 to 60% by weight of carbon powder, preferably 30 to 50% by weight, most preferably 35 to 45% by weight, and one or more clay minerals selected from the group consisting of palygorskite and kaolin. It includes a mixed powder containing 40 to 80% by weight of powder, preferably 50 to 70% by weight, and most preferably 55 to 65% by weight, and may be formed integrally by extrusion molding. At this time, the VOC adsorption and desorption filter may be a honeycomb structure composed of multiple cells with a plurality of ventilation holes (or through holes) penetrating in the thickness direction.

And the VOC adsorption and desorption filter further includes 1 to 20 parts by weight of a binder, preferably 5 to 15 parts by weight, and 50 to 70 parts by weight of a dispersion solvent, preferably 55 to 65 parts by weight, based on 100 parts by weight of the mixed powder. can do.

Here, the carbon powder serves to physically adsorb and remove odor components through numerous pores present on the surface, and is one or more selected from the group consisting of activated carbon, activated carbon fiber, charcoal, carbon nanotubes, graphite, and carbon black. , preferably activated carbon. The average particle diameter of the carbon powder may be 1 to 40 ㎛, preferably 20 to 30 ㎛. If the average particle diameter of the carbon powder is less than 1 ㎛, the load during the suction process is large when applied to the VOC adsorption/desorption filter, resulting in large power consumption and shortening the lifespan of the regeneration system. If it exceeds 40 ㎛, the suction process is interrupted. This is not desirable because the permeability of heavy air increases, but the filtering and adsorption effects may be reduced. When the average particle diameter of the carbon powder is within the above range, the iodine adsorption capacity may be 600 to 1200 mg/g.

The carbon powder may be included in an amount of 20 to 60% by weight, preferably 30 to 50% by weight, and most preferably 35 to 45% by weight. This is undesirable because if the carbon powder is less than 20% by weight, the porosity of the filter may decrease and the adsorption characteristics may deteriorate, and if it exceeds 60% by weight, durability and mechanical properties may deteriorate.

The clay mineral powder has a high specific surface area, which improves the adsorption performance of activated carbon, and the unique performance of clay minerals can increase the effect of improving moldability during molding. Such clay mineral powder may be a mixture of palygorskite and kaolin at a weight ratio of 0.5 to 1.5:1, preferably 0.8 to 1.2:1. If the mixing ratio of paligorskite and kaolin is less than 0.5:1 or more than 1.5:1 by weight, adsorption performance may be reduced.

Palygorskite is a 2:1 clay mineral that occurs in the form of needles and has a tunnel structure due to the chain structure of silicic acid tetrahedron. It contains water molecules within the tunnel, and its chemical formula is [Si ₈ Mg ₂ Al. ₂ O ₂₀ (OH) ₂ (OH) ₂ ·4H ₂ O]. Additionally, commercially available products such as attapulgite can be purchased and used.

The kaolin is the most representative clay mineral and has a unit structure of silicic acid tetrahedral layer and alumina octahedral layer in a ratio of 1:1, and is made up of three types with different structures: kaolinite, dickite, and nacrite. It may contain halloysite with added minerals and interlayer water. The chemical composition of the three minerals other than halloysite is [Al ₂ Si ₂ O ₅ (OH) ₄ ] or [Al ₂ O ₃ · 2SiO ₂ · 2H ₂ O], and the weight % of oxide is SiO ₂ , 46.5%; Al ₂ O ₃ , 39.5%; H ₂ O, 14.0%, has the most consistent composition among clay minerals.

The clay mineral powder may be included in an amount of 40 to 80% by weight, preferably 50 to 70% by weight, and most preferably 55 to 65% by weight. If the clay mineral powder is less than 40% by weight, the clay component may decrease, which may result in lower moldability during molding. If it exceeds 80% by weight, the content of carbon powder will be relatively reduced, resulting in lower adsorption efficiency for harmful substances and contaminants. You can.

The binder is a substance that serves to make the dough of carbon powder and clay mineral powder uniform and stable and maintain good binding, and is made of carboxymethyl cellulose (CMC), methyl cellulose (MC), and It may be one or more selected from the group consisting of hydroxypropyl methylcellulose (HPMC), preferably methyl cellulose (MC), but is not limited thereto, and in addition to the binder mentioned above, polyvinyl butyral ( An organic binder such as polyvinyl butyral or an inorganic binder such as barium carbonate (BaCO3) can be added and mixed as needed.

The binder may be added in an amount of 1 to 20 parts by weight, preferably 5 to 15 parts by weight, based on 100 parts by weight of the mixed powder. If the binder is less than 1 part by weight, durability may be reduced due to insufficient bonding between the mixed powders, and if it exceeds 20 parts by weight, it may be difficult for the carbon powder and clay mineral powder to be evenly dispersed. When the binder content is within the above range, the carbon powder and clay mineral powder can be more effectively combined.

The dispersion solvent is one selected from the group consisting of purified water, methanol, ethyl alcohol, glycerin, ethyl acetate, butylene glycol, and propylene glycol. Above, purified water can be preferably used, but it is not limited to this, and different types can be applied depending on the type of binder. The dispersion solvent may be added in an amount of 50 to 70 parts by weight, preferably 55 to 65 parts by weight, based on 100 parts by weight of the mixed powder.

This means that if the dispersion solvent is less than 50 parts by weight, it is difficult for the carbon powder and clay mineral powder to be evenly dispersed, and if it exceeds 70 parts by weight, it may be difficult to maintain shape retention during filter manufacturing.

Meanwhile, there may be only one adsorption tank 10 according to an embodiment of the present invention, but it is not limited to this and two or more adsorption tanks 10 are connected in parallel, so that a plurality of adsorption tanks 10 are simultaneously absorbed into the contaminated air. Volatile organic compounds can be adsorbed and fixed, or some of the plurality of adsorption tanks 10 can selectively adsorb and fix volatile organic compounds in contaminated air.

In addition, when a plurality of adsorption tanks 10 are included, at least one of them can be deactivated so as not to perform the adsorption process (S10), so that the VOC adsorption and desorption filter in the deactivated adsorption tank 10 can be replaced.

The control unit (not shown) can calculate the difference in pressure measured at the front and rear ends centered on the adsorption tank 10 in each of the contaminated air intake passage 61 and the purified air exhaust passage 62, and the adsorption tank ( 10) By checking the degree of breathability of the VOC adsorption and desorption filter according to the adsorption of harmful substances using the differential pressure at the front and rear ends, the need for replacement or regeneration of the VOC adsorption and desorption filter can be determined.

Accordingly, when the differential pressure between the front and rear ends of the adsorption tank 10 exceeds the preset critical pressure, the control unit outputs to the outside through various output means that filter replacement or regeneration is necessary, or removes contaminated air from other adsorption tanks connected in parallel. The inflow can be diverted.

Meanwhile, according to an embodiment of the present invention, the inflow side where contaminated air flows into the contaminated air intake passage 61 may include a pre-treatment filter 5 to primarily remove foreign substances contained in the contaminated air.

The pre-treatment filter 5 is a means of filtering and removing viscous substances or dust in the incoming contaminated air in the form of a mesh or a cartridge filter made of several layers of filter paper. In the present invention, the type is specifically defined. It is not limited.

The control unit can determine whether the pre-treatment filter 5 is clogged using the difference in air pressure measured at the front and rear ends of the pre-treatment filter 110 in addition to the adsorption tank 10, and the differential pressure between the front and rear ends of the pre-treatment filter 5 is If the preset critical pressure is exceeded, the need for replacement of the pre-treatment filter 5 can be output to the outside through various output means.

Meanwhile, according to an embodiment of the present invention, the first fan 71 that forcibly forms an airflow to supply contaminated air to the adsorption tank 10 is connected to the contaminated air intake passage 61 and/or the purified air exhaust passage. (62) It can be provided on the table.

According to an embodiment of the present invention, a first fan 71 is provided on the contaminated air intake passage 61, and the first fan 71 is driven to suck in contaminated air and supply it to the adsorption tank 10. However, according to another embodiment, as shown in FIG. 1, when the first fan 71 is provided on the purified air exhaust passage 62, the first fan 71 provided on the purified air exhaust passage 62 The fan 71 can supply contaminated air to the adsorption tank 10 using negative pressure generated by driving.

In this case, when the first fan 71 is provided on the purified air exhaust passage 62, the contaminated air is supplied to the adsorption tank 10 by the negative pressure generated by the operation of one first fan 71, making it volatile. The organic compound may be adsorbed to the adsorption tank 10, or, as described later, the adsorption tank 10 may be cooled by supplying unheated room temperature air to the adsorption tank 10.

When the volatile organic compounds are adsorbed and fixed to the adsorption tank 10 or the adsorption tank 10 is cooled by driving the first fan 71 provided on the purified air exhaust passage 62, the first fan 71 ) It is preferable that the purified air exhaust valve 94 provided at the front is opened.

Hereinafter, the description will be made based on the fact that the first fan 71 is provided on the purified air exhaust passage 62.

Meanwhile, in this adsorption process (S10), the mobile regeneration vehicle 20 is unnecessary, and after the adsorption process (S10), in the desorption process (S20), the mobile regeneration vehicle 20 moves to the adsorption tank 10, and the loaded The desorption process (S20) can be performed by connecting the regeneration tank 30 to the adsorption tank 10.

First and second connectors may be provided at each of the front and rear ends of the adsorption tank 10, and the front and rear ends of the regeneration tank 30 moved by the mobile regeneration vehicle 20 are connected to each of the first and second connectors. These can be connected to communicate with each other. That is, the first and second connectors may be connected to the intake port and exhaust port provided at each of the front and rear ends of the adsorption tank 10, and the front and rear ends of the adsorption tank 10 may be connected to the first and second connectors, respectively. .

As shown in FIG. 1, the first circulation passage 63 is branched at the front end of the adsorption tank 10 in the contaminated air intake passage 61 and can be connected to enable communication, and in the purified air exhaust passage 62, the first circulation passage 63 is branched and connected to allow communication. At the rear end of the adsorption tank 10, the second circulation passage 64 may be branched and connected to enable communication.

Each of the first and second circulation passages (63, 64) is connected to the front and rear ends of the regeneration tank (30), so that the adsorption tank (10) and the regeneration tank (30) are connected to each other in the first and second circulation passages (63). , 64), a circulation path through which airflow circulates can be formed.

As an example, the air in the adsorption tank 10 flows to the regeneration tank 30 along the first circulation passage 63, and the air in the regeneration tank 30 flows into the adsorption tank 10 along the second circulation passage 64. ), that is, air can be circulated by flowing continuously in one direction along the first and second circulation passages (63, 43).

Here, each of the first and second circulation passages 63 and 64 may be removably connected to the adsorption tank 10 and the regeneration tank 30, and preferably the first and second circulation passages 63, 64) can be formed by a flexible pipe.

On the other hand, the regeneration tank 30 is for processing volatile organic compounds, and the regeneration tank 30 is a thermal storage combustion device that reduces volatile organic compounds (VOC) at a high temperature using a heat storage material to reduce volatile organic compounds. Oxidation method (RTO; Regenerative Thermal Oxidizer), or RCO (Regenerative Catalytic Oxidizer), which uses a catalyst to reduce volatile organic compounds (VOC) at a relatively lower temperature (300~400℃) than RTO. Volatile organic compounds can be treated using .

However, since the regeneration tank 30 must be loaded on the mobile regeneration vehicle 20, the regeneration tank 30 according to a preferred embodiment of the present invention uses a regenerative catalytic oxidizer (RCO; Regenerative Catalytic Oxidizer) to remove volatile organic substances. It is desirable to treat the compound.

Specifically, the regeneration tank 30 of the thermal storage catalytic oxidation method according to an embodiment of the present invention contains platinum (Pt), palladium (Pd), and rhodium on a honeycomb-structured carrier made of ceramics made from cordierite, etc. By using a catalyst carrying noble metals such as (Rh), volatile organic compounds can be reduced in the low temperature range of 300 to 400°C.

That is, the regeneration tank 30 can reduce volatile organic compounds using a catalyst in a temperature range of 300 to 400° C., as shown in Chemical Formula 1 below.

[Formula 1]

C _x H _y O _z + O ₂ -> CO ₂ + H ₂ O

The adsorption tank 10, which operates for a certain period of time and absorbs and fixes volatile organic compounds, may need to be replaced or regenerated. As described above, the control unit according to an embodiment of the present invention operates at the front and rear ends of the adsorption tank 10. Using the differential pressure, the need for replacement or regeneration of the VOC adsorption/desorption filter can be determined.

That is, depending on the need for replacement or regeneration of the VOC adsorption/desorption filter, the regeneration tank 30 mounted on the mobile regeneration vehicle 20 may be connected to the adsorption tank 10 to have a circulation flow path.

At this time, the regeneration tank 30 must create a high-temperature atmosphere for processing volatile organic compounds inside, and for this purpose, a burner is installed at the front of the regeneration tank 30 to heat the air flowing into the regeneration tank 30. (40) can be provided.

As shown in FIG. 2, the burner 40 can be loaded together with the regeneration tank 30 on a mobile regeneration vehicle 20, and at this time, the burner 40 creates a high-temperature atmosphere in the regeneration tank 30. The type is not particularly limited as long as it can heat the air supplied to the regeneration tank 30.

As an example, the burner 40 can heat the outside air by igniting fuel such as LNG, LPG, or liquid fuel, but is not limited to this, and can heat the air using electric heaters or solar heat. It may be a solar heater, etc. that heats.

Here, the object to be heated by being supplied to the burner 40 may be outside air, as shown in FIG. 2. However, the present invention is not limited to this, and as shown in FIG. 5, the object to be heated is from the adsorption tank 10. It could be exhausted air.

When the burner 40 heats the air discharged from the adsorption tank 10, volatile organic compounds in the air discharged from the adsorption tank 10 can be used as fuel, and in this case, fuel costs can be reduced.

The air heated by the burner 40 can be supplied to the regeneration tank 30 to form a high-temperature atmosphere inside the regeneration tank 30.

At this time, at least one temperature sensor (not shown) may be provided in the regeneration tank 150 to check whether the temperature in the regeneration tank 150 is within a temperature range where volatile organic compounds can be burned and reduced.

Meanwhile, when the burner 40 according to an embodiment of the present invention provides heated air to the regeneration tank 30, as described above, the burner 40 is supplied from outside or the adsorption tank 10. Air containing volatile organic compounds provided from can be heated and provided, but in this case, the burner 40 may further include an additional heat source in addition to the main heat source that heats the air by igniting fuel.

The burner 40 can use exhaust heat generated from the engine 21 of the mobile regenerative vehicle 20 to additionally apply heat to the object to be heated in addition to the main heat source.

Since the regeneration tank 30 according to an embodiment of the present invention is loaded on the mobile regeneration vehicle 20, the burner 40 loaded on the mobile regeneration vehicle 20 uses the air supplied to the regeneration tank 30. For additional heating, exhaust heat generated from the engine 21 can be used.

The exhaust gas generated by driving the engine 21 flows along the exhaust pipe 22 and is discharged to the outside through a muffler, etc. At this time, the exhaust heat of the high-temperature exhaust gas discharged from the engine 21 is used to regenerate the tank ( It is desirable to assist in heating the air supplied to 30).

That is, the exhaust gas discharged from the engine 21 and discharged along the exhaust pipe 22 is high-temperature, and a first heat exchanger 23 is provided on the exhaust pipe 22 to supply high-temperature heat to the burner 40. It can be.

According to one embodiment, the first heat exchanger 23 is provided to surround the outer peripheral surface of the exhaust pipe 22, so that the first heat exchanger 23 can absorb exhaust heat from the exhaust pipe 22.

The burner 40 may include a second heat exchanger 25 connected to the first heat exchanger 23, and the first heat exchanger 23 and the second heat exchanger 25 are heat transfer channels through which heat medium flows. Connected to (24a, 24b), the exhaust heat absorbed by the first heat exchanger (23) can be transferred to the second heat exchanger (25).

That is, the heat medium provided inside the first heat exchanger 23 to surround the outer peripheral surface of the exhaust pipe 22 absorbs heat from the exhaust heat generated from the exhaust gas in the exhaust pipe 22 and then flows into the heat transfer paths 24a and 24b. ) can flow along and reach the second heat exchanger (25), and the heat medium that reaches the second heat exchanger (25) can share the stored heat with the object to be heated inside the burner (25). .

Here, the heat vegetable is a fluid that can store heat, and its type or state is not particularly limited, but is used along the heat transfer paths (24a, 24b) provided between the first heat exchanger (23) and the second heat exchanger (25). It is preferred that it is a heat storage medium capable of circulating flow.

Ultimately, the burner 40 uses the exhaust heat transferred to the second heat exchanger 25 and the heat generated by igniting the supplied fuel to heat the outside air or the air discharged from the adsorption tank 10, Heated air can be provided to the regeneration tank (30).

In this way, the high-temperature air supplied to the regeneration tank 30 according to an embodiment of the present invention is the exhaust heat generated from the engine 21 mounted on the mobile regeneration vehicle 20 and the burner within the mobile regeneration vehicle 20. Since it is provided by heat generated by igniting the fuel supplied to (40), the fuel cost for providing high-temperature air can be reduced.

In addition, since the regeneration tank 30 for reducing volatile organic compounds fixedly adsorbed in the adsorption tank 10 is not fixed but is provided on a mobile regeneration vehicle 20, the volatile organic compounds in the facility where polluted air is generated It is not necessary to have facilities to reduce or treat.

Meanwhile, Figure 3 is a configuration diagram of a mobile regenerative vehicle according to another embodiment of the present invention.

As shown in FIG. 3, the heat medium flows along the heat transfer paths (24a, 24b) connected between the first and second heat exchangers (23, 25), and transfers exhaust heat from the exhaust pipe (22) to the burner (40). It can be delivered.

At this time, since the exhaust heat of the exhaust pipe 22 is required to be generated by the engine 21, there is a problem that an additional heat source cannot be applied to the main heat source of the burner 40 when the engine 21 is not running.

In order to solve this problem, the mobile volatile organic compound regeneration system 1 according to an embodiment of the present invention includes a regenerator ( 26) may be included.

The regenerator 26 has a heat storage material such as PCM (Phase change material) or molten salt, and as shown in FIG. 3, the regenerator 26 is a first heat exchanger. Since (23) and the heat transfer path (24a, 24b) through which the heat medium flows are connected to each other in communication, the exhaust heat generated by the high-temperature exhaust gas path flowing within the exhaust pipe (22) is transmitted to the regenerator (26). It can be saved.

The regenerator 26, which accumulates and stores heat in this way, can transfer the stored heat to the burner 40 through the heat medium.

Accordingly, even if the engine 21 is not running, the burner 40 can use the exhaust heat generated from the already driven engine 21 and previously stored in the regenerator 26 as an auxiliary heat source, and the burner 40 can use the fuel By using the auxiliary heat source provided from the regenerator 26 in addition to the main heat source generated due to ignition, a high temperature atmosphere can be formed in the regeneration tank 30 quickly within a short time and at low fuel costs.

Meanwhile, as described above, the regeneration tank 30 to which the thermal storage catalytic oxidation method is applied must form a temperature atmosphere of approximately 300 to 400° C. in order to process volatile organic compounds, but the adsorption tank (30) that circulates with the regeneration tank 30 10) In order to desorb the fixed and adsorbed volatile organic compounds, an atmosphere with a temperature of approximately 150 to 200°C must be created.

In other words, the VOC adsorption and desorption filter in the adsorption tank 10 can adsorb and fix volatile organic compounds in the micropores formed on the surface at room temperature below 40℃, and in the temperature range of 150~200℃, the adsorption and fixed volatile organic compounds are absorbed and fixed. It can be regenerated by desorbing the compound (see Figure 8).

Accordingly, among the circulation passages connecting the adsorption tank 10 and the regeneration tank 30, the second circulation passage 64 flowing from the regeneration tank 30 to the adsorption tank 10 is used to introduce outside air. It may include a second fan (72).

By supplying the outside air introduced by the second fan 72 to the adsorption tank 10 to the air in the regeneration tank 30, which forms an atmosphere with a temperature of approximately 300 to 400° C. inside, the adsorption tank 10 Inside, an atmosphere within a temperature range of 150 to 200°C can be created by ambient air at room temperature supplied by the second fan 72.

That is, the air introduced from the outside by the second fan 72 is mixed with the air discharged from the regeneration tank 30 operating in a temperature range of 300 to 400 ° C, thereby forming a VOC adsorption and desorption filter in the adsorption tank 10. can be cooled to 150-200°C, which is the target temperature for desorbing volatile organic compounds.

However, according to another embodiment of the present invention, as shown in FIG. 6, in order to lower the temperature of the VOC adsorption and desorption filter in the regeneration tank 30, a refrigeration cycle (installed in the mobile regeneration vehicle 20) is used. 80) can be used.

Typically, the mobile regenerative vehicle 20 may include a refrigeration cycle device 80 including an evaporator, compressor, condenser, and expansion valve that constitute a refrigeration cycle in order to supply cold air to the driver's cabin or the inside of the loading box.

The mobile regeneration vehicle 20 having a refrigeration cycle device 80 can cool the air discharged from the regeneration tank 30 and supplied to the adsorption tank 10 using the refrigeration cycle device 80.

As described above, the target temperature for the VOC adsorption and desorption filter in the adsorption tank 10 to desorb volatile organic compounds is 150 to 200°C, and the internal temperature of the regeneration tank 30 using the thermal storage catalytic oxidation method is 300 to 400°C. Since the difference in ℃ is large, the adsorption tank 10 uses the low-temperature outside air mixed through the refrigeration cycle device 80 to reach 150 to 200 ℃, which is the target temperature for desorption of the volatile organic compounds. The time taken can be reduced, and the length of the first and second circulation passages 63 and 64 between the adsorption tank 10 and the regeneration tank 30 can be reduced.

However, if necessary, if the air supplied from the adsorption tank 10 to the regeneration tank 30 is low temperature, the internal atmosphere of the regeneration tank 30 must reach 300 to 400°C, which is the temperature range for treating volatile organic compounds. To this end, the amount of high-temperature air heated by the burner 40 supplied to the regeneration tank 30 can be increased.

Meanwhile, the adsorption tank 10 according to an embodiment of the present invention adsorbs the VOC adsorption and desorption filter in the adsorption tank 10 so that it can again adsorb volatile organic compounds (VOC) in the polluted air after the desorption process (S20). A cooling process (S30) may be performed to cool the high-temperature atmosphere in the tank 10.

As described above, during the cooling process (S30), the mobile regeneration vehicle 20 or the regeneration tank 30 may be separated from the adsorption tank 10.

Since the temperature range for the VOC adsorption and desorption filter in the adsorption tank 10 to adsorb and fix volatile organic compounds in the micropores formed on the surface is room temperature below 40°C, the adsorption tank 10 is operated after the desorption process (S20). It must be cooled again to adsorb and fix volatile organic compounds.

Therefore, after the volatile organic compounds (VOC) adsorbed and fixed by the VOC adsorption/desorption filter are desorbed, the purified air exhaust valve 94 can be opened so that it can be cooled in the cooling process (S30), and the first fan 71 ) can be used to forcefully supply outside air directly to the adsorption tank (10). When the outside air is directly supplied to the adsorption tank 10 by driving the first fan 71, the contaminated air intake valve 91 provided at the rear of the pre-treatment filter 50 may be closed.

In order to cool the adsorption tank 10, the outside air directly introduced by the first fan 71 is preferably purified air that does not contain volatile organic compounds, and for this purpose, according to a preferred embodiment, the first fan 71 ) may be provided around the exhaust port through which the air purified from the adsorption tank 10 is discharged.

In addition, in addition to the purified air exhaust valve 94, the contaminated air intake valve 91 may also be opened, and with the contaminated air intake valve 91 and the purified air exhaust valve 94 open, the first fan 71 Outside air can be sucked in along the contaminated air intake passage 61 by the negative pressure generated by the drive, and the sucked outside air can be forcibly supplied to the adsorption tank 10.

However, in the cooling process (S30), the circulation valve 93 for connecting the front end of the adsorption tank 10 to enable communication with the regeneration tank 30 may be closed.

If the mobile regeneration vehicle 20 is not separated from the adsorption tank 10, the cold air provided by the refrigeration cycle device 80 of the mobile regeneration vehicle 20 is supplied to the adsorption tank 10 to quickly regenerate the inside. The temperature can be lowered, but if the mobile regenerative vehicle 20 is separated from the adsorption tank 10, it may be difficult to use the cold air provided by the refrigeration cycle device 80.

Above, preferred embodiments of the present invention have been described in detail with reference to the drawings. The description of the present invention is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing its technical idea or essential features.

Accordingly, the scope of the present invention is indicated by the claims described later rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. must be interpreted.

1: Mobile volatile organic compound regeneration system 5: Pretreatment filter
10: Adsorption tank 20: Mobile recycling vehicle
21: engine 22: exhaust pipe
23: first heat exchanger 24a, 24b: heat transfer furnace
25: second heat exchanger 26: heat storage device
30: Regeneration tank 40: Burner
61: Contaminated air intake passage 62: Purified air exhaust passage
63: first circulation passage 64: second circulation passage
71: 1st fan 72: 2nd fan
80: Refrigeration cycle device 91: Contaminated air intake valve
92: External air inlet valve 93: Circulation valve
94: Purified air exhaust valve

Claims (9)

An adsorption tank that uses a VOC adsorption and desorption filter to adsorb volatile organic compounds in the contaminated air flowing in through the intake port and discharges the purified air through the exhaust port; and
A mobile regeneration vehicle connected to first and second connectors provided at the front and rear ends of the adsorption tank, respectively, and having a regeneration tank for processing the volatile organic compounds discharged from the adsorption tank;
Including,
The mobile regeneration vehicle further includes a burner provided to form a high-temperature atmosphere so that the regeneration tank can combust the volatile organic compounds, and a refrigeration cycle device for generating cold air,
The adsorption tank and the regeneration tank are connected to each other by first and second circulation passages to form a circulation passage in which air currents circulate, and among the circulation passages, the second circulation passage flows from the regeneration tank to the adsorption tank. It further includes a second fan provided on the table,
Characterized in that cold air from the refrigeration cycle device is supplied to the adsorption tank by the second fan so that the adsorption tank from which the volatile organic compound has been desorbed can again adsorb the volatile organic compound,
The VOC adsorption and desorption filter is a mobile volatile organic compound regeneration system, characterized in that it is made of honeycomb-shaped activated carbon. delete According to claim 1,
The regeneration tank is,
A mobile volatile organic compound regeneration system, characterized in that the volatile organic compounds are treated by a thermal storage catalytic oxidation method. According to claim 1,
The burner ignites fuel to heat air and provides it to the regeneration tank,
A mobile volatile organic compound recovery system, characterized in that exhaust heat generated from the engine of the mobile recovery vehicle is provided to the burner as an additional heat source. According to claim 4,
The burner ignites fuel to heat the volatile organic compounds discharged from the adsorption tank and provides the volatile organic compounds to the regeneration tank. According to claim 4,
a regenerator that stores the exhaust heat and provides the stored exhaust heat as an additional heat source to the burner;
A mobile volatile organic compound regeneration system further comprising: According to claim 1,
The VOC adsorption and desorption filter is,
55 to 65 weight of clay mineral powder mixed with 35 to 45% by weight of carbon powder with an average particle diameter of 1 to 40 ㎛ and an iodine adsorption capacity of 600 to 1,200 mg/g, and palygorskite and kaolin in a weight ratio of 0.5 to 15:1. A mobile volatile organic compound regeneration system, characterized in that it consists of a mixed powder mixed with %, 1 to 20 parts by weight of a binder and 50 to 70 parts by weight of a dispersing solvent based on 100 parts by weight of the mixed powder. According to claim 1,
a first fan provided at the intake port of the adsorption tank to supply external air to the adsorption tank;
Including further,
A mobile volatile organic compound regeneration system, characterized in that the adsorption tank is cooled to a temperature capable of adsorbing and fixing the volatile organic compounds by external air supplied by the first fan. According to claim 1,
A pre-treatment filter provided at the intake port of the adsorption tank to filter out foreign substances in the contaminated air flowing in through the intake port;
A mobile volatile organic compound regeneration system further comprising:

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