KR20200026400A - MODULARIZED VOCs REMOVAL SYSTEM AND ITS METHOD USING ADSORPTION ROTOR AND OXIDATION CATALYST - Google Patents

Abstract

A modularized VOC removal system using an adsorption rotor and an oxidation catalyst according to the present invention, as a VOC removal system for removing volatile organic compounds (VOCs) from volatile organic compound (VOC) gas discharged from an industrial process and purifying the VOC gas, includes: a gas inflow unit which flows in the VOC gas through a duct; a rotor unit which adsorbing and concentrates the VOC gas flown in through the gas inflow unit; a heater unit which increases the temperature of the VOC gas to desorb the VOC gas concentrated through the rotor unit; a catalyst unit which removes the VOCs while oxidizing the same, through a catalytic reaction, whose temperature has been increased such that the VOC gas is desorbed through the heater unit; a gas discharge unit which discharges the gas purified through the catalyst unit to the outside; and a control unit which is connected to the gas inflow unit, rotor unit, heater unit, catalyst unit and gas discharge unit to control operations of the gas inflow unit, rotor unit, heater unit, catalyst unit and gas discharge unit, wherein the gas inflow unit, rotor unit, heater unit, catalyst unit, gas discharge unit, and control unit are manufactured into modules, respectively, such that the respective modules are combined with one another to be separated from one another. According to an embodiment of the present invention, the modularized VOC removal system can obtain low initial investment and operating costs and high removal efficiency of VOCs by combining a VOC concentrator with an oxidation catalyst device, thereby removing the VOCs.

Description

Modular VOCs Removal System and Method Using Adsorption Rotor and Oxidation Catalysts {MODULARIZED VOCs REMOVAL SYSTEM AND ITS METHOD USING ADSORPTION ROTOR AND OXIDATION CATALYST}

The present invention relates to a VOCs removal system and a method thereof, and more particularly, to a modular VOCs removal system and a method using an adsorption rotor and an oxidation catalyst using a adsorption rotor and an oxidation catalyst. will be.

VOCs is a term that refers to hydrocarbon compounds that volatilize in the atmosphere to generate odors and ozone, and are commonly referred to as benzene, formaldehyde, toluene, xylene, ethylene, styrene, acetaldehyde, etc. In the manufacturing and storage process, automotive exhaust, paint, building materials and laundry facilities.

VOCs cause odor at low concentrations and can lead to cancer and chronic diseases when exposed to the human body. When released into the atmosphere, VOCs produce secondary pollutants such as photochemical oxides by photochemical reactions.

In the industrial field, various technologies such as a concentrator, a regenerative combustion furnace (RTO) and a direct combustion furnace (TO), which process VOCs, are in operation.

Regenerative furnaces and direct-fired furnace technologies require large amounts of power and fuel for high-temperature combustion, and their use is limited due to initial investment and high operating costs. In addition, secondary compounds are generated during combustion, which requires a separate compound treatment apparatus.

Due to the limited space problem of the industrial site and the limitation of the weight of the facility, the technology of compact and modular is required.

In general, VOCs concentrators and VOCs removal facilities are installed separately and are operating at the same time. After converting large air volume and low concentration of VOCs into high concentration and low air volume using a concentrator, the concentrated VOCs are decomposed by combustion or catalytic oxidation in a subsequent VOCs treatment plant.

The combustion elimination device has various problems such as high initial investment cost, limited space, high power consumption, and combustion using auxiliary fuel, resulting in high operating costs and generation of secondary pollutants by combustion.

Cited Invention 1. Republic of Korea Patent No. 10-1579206 (Invention name: Dehumidifying system capable of removing volatile organic compounds) Cited Invention 2. Korean Registered Patent No. 10-1173011 Cited Invention 3. Korean Registered Patent No. 10-1717535 (Invention: Volatile Organic Compound Treatment System and Treatment Method) Cited Invention 4. Korean Registered Patent No. 10-1309714 (Invention: Odor and Volatile Organic Compound Treatment System)

Therefore, the present invention has been made to solve the above problems, the problem to be solved of the present invention is to install a blower in the VOCs inlet duct to secure space, the modularization of the equipment and the compaction of the equipment of the installation of the rotor The present invention provides a system and method for removing modular VOCs using an oxidation catalyst.

However, technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned are clearly to those skilled in the art from the following description. It can be understood.

The present invention was created to improve the problems of the prior art as described above, VOCs removal system for removing and purifying VOCs from the VOCs gas discharged from an industrial process, a gas inlet for introducing the VOCs gas through a duct; A rotor unit for adsorbing and concentrating the VOCs gas introduced through the gas inlet unit; A heater unit for heating up to desorb the VOCs gas concentrated through the rotor unit; A catalyst unit for removing VOCs while oxidizing the VOCs gas heated and heated by the heater unit by a catalytic reaction; A gas discharge unit for discharging the purified gas through the catalyst unit to the outside; And a controller connected to the gas inlet, the rotor, the heater, the catalyst, and the gas outlet to control the operation of the gas inlet, the rotor, the heater, the catalyst, and the gas outlet. The gas inlet part, the rotor part, the heater part, the catalyst part, the gas discharge part and the control unit are each made of modules so that each module can be detachably coupled.

In addition, the heater unit used as a heat source of the rotor unit and the catalyst unit may be manufactured in a shape corresponding to the outer shape of the duct.

In addition, in order to prevent external heat transfer of the respective modules, the outer wall of the modules may be surrounded by a heat insulating material and kept warm.

In addition, the heat source of the heater may be one of a burner, plasma and microwave.

In addition, the gas from which the VOCs are removed through the catalyst part is cooled in the rotor part, and re-introduced into the rotor part through a reactor fan provided in the gas discharge part to re-adsorb, concentrate, and desorb the VOCs that have not been removed. In the catalyst unit can be discharged to the outside through a catalytic reaction.

In addition, the duct is provided with a processor fan therein, the outer shape can be manufactured while changing the size and shape according to the amount of processing gas.

In addition, the modules may be detachably coupled to each of the modules using a connection hole formed in a portion and a connection bolt connected to the connection hole.

In addition, a dustproof member is installed below the modules to prevent vibration.

The present invention provides a VOCs removal method for removing and purifying VOCs from VOCs gas discharged from an industrial process, comprising: a gas inflow step of introducing the VOCs gas from a gas inlet that introduces the VOCs gas through a duct; An adsorption step of cooling and adsorbing the VOCs gas introduced through the gas inflow step into a rotor unit; A first discharge step of discharging the gas purified through the adsorption step through a gas discharge part; A concentration step of concentrating the VOCs gas adsorbed through the adsorption step in a rotor part; A first heating step of heating the heater unit to increase the temperature to desorb the VOCs gas that has passed through the concentration step; A desorption step of desorbing the VOCs gas heated through the first heating step from the rotor unit; A second heating step of heating the desorbed VOCs gas through the desorption step to the heater unit for a catalytic reaction; A catalytic oxidation step of removing VOCs by oxidizing the VOCs gas with a catalyst unit for oxidizing and removing the VOCs gas heated by the second heating step through a catalytic reaction; A re-purification step of transferring and purifying the purified gas to the rotor unit to remove VOCs remaining in the purified gas through the catalytic oxidation step; And a second discharge step of discharging the gas purified through the refining step through the gas discharge unit, wherein the gas inlet unit, the rotor unit, the heater unit, the catalyst unit, the gas discharge unit, and the control unit are respectively discharged. Each module may be detachably coupled to be manufactured as a module.

In addition, the refining step may include a cooling step of cooling the purified gas through a heat exchanger connected to the rotor part to remove VOCs remaining in the purified gas through the catalytic oxidation reaction step; A resorption step of resorption of the purified gas cooled through the cooling step in the rotor unit; A reheating step of reheating the purified gas resorbed in the resorption step to the heater unit; And a recatalytic oxidation step of removing the remaining VOCs while reoxidizing the purified gas heated through the reheating step in the catalyst unit.

According to one embodiment of the present invention, by combining the VOCs concentrator and the oxidation catalyst device to remove the VOCs it is possible to obtain a low initial investment, operating costs and high VOCs removal efficiency.

In addition, there is a great advantage in securing space by installing a gas inlet in the VOCs inlet duct.

In addition, it is possible to solve the problem of insufficient installation space and transportation problems inside / outside the existing building by modularizing the equipment and compactness of the equipment.

However, the effects obtained in the present invention are not limited to the above-mentioned effects, and other effects not mentioned above will be clearly understood by those skilled in the art from the following description. Could be.

The following drawings, which are attached in this specification, illustrate the preferred embodiments of the present invention, and together with the detailed description of the present invention, serve to further understand the technical spirit of the present invention. It should not be construed as limited to.
1 is a view showing the overall concept of a modular VOCs removal system using an adsorption rotor and an oxidation catalyst according to an embodiment of the present invention.
2 is a control block diagram of the VOCs removal system.
3 is a view showing a modular view of the VOCs removal system.
4 is an elevation view of the modular VOCs removal system.
5 is a view showing the back side of the modular VOCs removal system.
6 is a plan view of the modular VOCs removal system.
7 illustrates an embodiment of the modular VOCs removal system.
8 is a view showing the connection of each module of the modular VOCs removal system.
9 is a flowchart illustrating a method for removing modular VOCs using an adsorption rotor and an oxidation catalyst according to an embodiment of the present invention.
10 is a diagram illustrating a process of the reordering step.
11 is a flow chart showing the overall flow of the modular VOCs removal system and method using an adsorption rotor and an oxidation catalyst according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. However, since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiments may be variously modified and may have various forms, the scope of the present invention should be understood to include equivalents for realizing the technical idea. In addition, the objects or effects presented in the present invention does not mean that a specific embodiment should include all or only such effects, the scope of the present invention should not be understood as being limited thereby.

The meaning of the terms described in the present invention will be understood as follows.

Terms such as "first" and "second" are intended to distinguish one component from another component, and the scope of rights should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. When a component is referred to as being "connected" to another component, it should be understood that there may be other components in between, although it may be directly connected to the other component. On the other hand, when a component is said to be "directly connected" to another component, it should be understood that there is no other component in between. On the other hand, other expressions describing the relationship between the components, such as "between" and "immediately between" or "neighboring to" and "directly neighboring", should be interpreted as well.

Singular expressions should be understood to include plural expressions unless the context clearly indicates otherwise, and terms such as "include" or "have" refer to features, numbers, steps, operations, components, parts, or parts thereof described. It is to be understood that the combination is intended to be present and does not exclude in advance the possibility of the presence or addition of one or more other features or numbers, steps, actions, components, parts or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. Generally, the terms defined in the dictionary used are to be interpreted to coincide with the meanings in the context of the related art, and should not be interpreted as having ideal or excessively formal meanings unless clearly defined in the present invention.

1 is a view showing the overall concept of a modular VOCs removal system using an adsorption rotor and an oxidation catalyst according to an embodiment of the present invention, Figure 2 is a control block diagram of the VOCs removal system, Figure 3 is the VOCs removal system 4 is an elevation view of the modular VOCs removal system, FIG. 5 is a rear view of the modular VOCs removal system, and FIG. 6 is a plan view of the modular VOCs removal system. 7 is a view showing an embodiment of the modular VOCs removal system, Figure 8 is a view showing a connection of each module of the modular VOCs removal system.

1 to 8, the VOCs removal system for removing and purifying the VOCs from the VOCs gas discharged from the industrial process, the present invention is a gas inlet 100, rotor 200, heater 300 ), The catalyst unit 400, the gas discharge unit 500 and the control unit 600 may be included.

The gas inlet unit 100 may introduce VOCs gas through the duct 20.

The rotor unit 200 may concentrate and adsorb VOCs gas introduced through the gas inlet unit 100. Specifically, the rotor unit 200 is capable of adsorption and concentrated desorption of contaminated external gas by using the rotation of the rotor. An adsorbent is provided at a portion of the rotor unit 200 to adsorb VOCs gas introduced through the duct 20. This is possible.

Specifically, the concentration process is made in the rotor 50, the rotor 50 is in the form of a cylindrical structure formed so as to rotate the adsorbent is provided in a portion, radially around the axis adsorption section, desorption section, cooling section It is formed so that the air passes through each section.

In the adsorption section, VOC is adsorbed by the adsorbent as the VOC gas passes, and the air from which the VOC is removed is discharged. The adsorption section is generally configured to have the largest area to adsorb the VOC as much as possible.

In the desorption section, while the desorption air heated by the heater unit 300 passes, the VOC adsorbed to the adsorbent by the high desorption air is desorbed to the desorption air, that is, the actual VOC is desorbed in the desorption section. The first stage of recovery takes place. In the cooling section, the cooling air is connected to the heat exchanger, and the cooling is performed so that the adsorbent heated in the desorption section can adsorb the VOC again.

The heater unit 300 may raise the temperature to desorb the concentrated VOCs gas through the rotor unit 200.

As a heat source of the heater unit 300, one of a burner, plasma, and microwave may be used.

The catalyst unit 400 may remove the VOCs while oxidizing the VOCs gas heated up through the heater unit 300 through a catalytic reaction.

The gas from which the VOCs have been removed through the catalyst unit 400 is cooled in the rotor unit 200, and is re-introduced into the rotor unit 200 through the reactor fan 30 provided in the gas discharge unit 500. The VOCs may be discharged to the outside through a catalytic reaction in the catalyst unit 400 after resorption, concentration and desorption.

The heater unit 300 used as the heat source of the rotor unit 100 and the catalyst unit 400 may be manufactured in a shape corresponding to the outer shape of the duct 20.

The gas discharge unit 500 may discharge the purified gas to the outside through the catalyst unit 400.

The control unit 600 is connected to the gas inlet unit 100, the rotor unit 200, the heater unit 300, the catalyst unit 400, and the gas discharge unit 500, the gas inlet unit 100, the rotor unit ( 200, the operation of the heater unit 300, the catalyst unit 400, and the gas discharge unit 500 may be controlled.

The gas inlet part 100, the rotor part 200, the heater part 300, the catalyst part 400, the gas discharge part 500, and the control part 600 are each made of modules, so that each module is detachably coupled. Can be.

The modules may be detachably coupled to each module by using a connection hole 70 formed in a portion thereof and a connection bolt 80 connected to the connection hole 70.

In order to prevent external heat transfer of the modules, the outer wall of the modules may be kept warm by surrounding the outside with insulation. In addition to the insulation, a heating jacket can be installed to heat the modules to prevent external heat transfer.

The duct 20 has a processor fan 40 installed therein, and the outer shape may be manufactured while changing size and shape according to the amount of processing gas.

The lower part of the module is provided with a dustproof member 60 to prevent vibration. As the material of the anti-vibration rubber 60, it can be produced using a synthetic resin excellent in durability and elasticity. Kinds of synthetic resins include phenol resins, polyurethane resins, polyamide resins, acrylic resins, urea / melamine resins, and silicone resins.

Each module may be provided with a space between each module to facilitate work for maintenance or repair. In addition, the components constituting each module can be arranged while moving the appropriate position for the optimization of the system.

The VOCs removal system 10 of the present invention can be operated through a control unit 600 interlocked with any one of a mobile terminal, a Wi-Fi communication module, a Bluetooth communication module, and a Zigbee communication module.

That is, the operator can use the VOCs removal system 10 by adopting one of the Bluetooth communication module, the Wi-Fi communication module, and the Zigbee communication module, but can select and use the best method without being limited to the above method. Do.

9 is a flowchart illustrating a method for removing modular VOCs using an adsorption rotor and an oxidation catalyst according to an embodiment of the present invention, FIG. 10 is a view illustrating a process of the refining step, and FIG. 11 is an embodiment of the present invention. Is a flow chart showing the overall flow of the modular VOCs removal system and method using adsorption rotor and oxidation catalyst according to the present invention.

9 to 11, the VOCs removal method for removing and purifying VOCs from the VOCs gas discharged from the industrial process, the present invention is a gas inlet step (S100), adsorption step (S110), the first discharge step ( S120), concentration step (S130), first heating step (S140), desorption step (S150), second heating step (S160), catalytic oxidation step (S170), refining step (S180) and the second discharge step It may be made, including (S190).

Gas inflow step (S100) is a step of introducing the VOCs gas from the gas inlet 100 for introducing the VOCs gas through the duct 20.

The adsorption step (S110) is a step of cooling and adsorbing the VOCs gas introduced through the gas inflow step (S100) to the rotor unit 200.

The first discharge step S120 is a step of discharging the gas purified through the adsorption step S110 through the gas discharge unit 500.

The concentration step S130 is a step of concentrating the VOCs gas adsorbed through the adsorption step S110 in the rotor unit 200.

The first heating step S140 is a step of heating the heater unit 300 to increase the temperature in order to desorb the VOCs gas that has passed through the concentration step S130.

Desorption step (S150) is a step of detaching the VOCs gas heated in the rotor unit 200 through the first heating step (S140).

The second heating step S160 is a step of raising the temperature of the VOCs gas desorbed through the desorption step S150 to the heater unit 300 for the catalytic reaction.

Catalytic oxidation step (S170) is a step of removing VOCs by oxidizing the VOCs gas to the catalyst unit 400 which oxidizes and removes the VOCs gas heated through the second heating step S160 through a catalytic reaction.

The refining step (S180) is a step of refining by transferring the purified gas to the rotor unit 200 to remove the VOCs remaining in the purified gas through the catalytic oxidation reaction step (S170).

The refining step S180 may include a cooling step S182, a resorption step S184, a reheating step S186, and a recatalytic oxidation step S188.

The cooling step S182 is a step of cooling the purified gas through a heat exchanger connected to the rotor unit 200 to remove the remaining VOCs from the purified gas through the catalytic oxidation reaction step S170.

The resorption step (S184) is a step of resorption of the purified gas cooled through the cooling step (S182) in the rotor unit 200.

The reheating step S186 is a step of re-heating the purified gas resorbed in the resorption step S184 to the heater unit 300.

The recatalytic oxidation step (S188) is a step of removing residual VOCs while reoxidizing the purified gas heated through the reheating step (S186) in the catalyst unit 400.

The second discharge step S190 is a step of discharging the gas purified through the refining step S180 through the gas discharge unit 500.

The gas inlet part 100, the rotor part 200, the heater part 300, the catalyst part 400, the gas discharge part 500, and the control part 600 are each made of modules, so that each module is detachably coupled. Can be.

The modules may be detachably coupled to each module by using a connection hole 70 formed in a portion thereof and a connection bolt 80 connected to the connection hole 70.

The detailed description of the preferred embodiments of the invention disclosed as described above is provided to enable those skilled in the art to implement and practice the invention. Although the above has been described with reference to the preferred embodiments of the present invention, those skilled in the art will understand that various modifications and changes can be made without departing from the scope of the present invention. For example, those skilled in the art can use each of the components described in the above-described embodiments in combination with each other. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The invention can be embodied in other specific forms without departing from the spirit and essential features of the invention. Accordingly, the above detailed description should not be construed as limiting in all aspects and should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention. The present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, the claims may be incorporated into claims that do not have an explicit citation relationship in the claims, or may be included as new claims by amendment after filing.

10: VOCs Removal System
20: duct
30: reactor fan
40: processor fan
50: rotor
60: dustproof member
70: connecting hole
80: Connecting bolt
100: gas inlet
200: rotor part
300: heater unit
400: catalytic part
500: gas discharge unit
600: control unit

Claims (10)

VOCs removal system that removes and purifies VOCs from VOCs gas emitted from industrial processes.
A gas inlet unit for introducing the VOCs gas through a duct;
A rotor unit for adsorbing and concentrating the VOCs gas introduced through the gas inlet unit;
A heater unit for heating up to desorb the VOCs gas concentrated through the rotor unit;
A catalyst unit for removing VOCs while oxidizing the VOCs gas heated and heated by the heater unit by a catalytic reaction;
A gas discharge unit for discharging the purified gas through the catalyst unit to the outside; And
And a controller connected to the gas inlet, the rotor, the heater, the catalyst, and the gas outlet to control the operation of the gas inlet, the rotor, the heater, the catalyst, and the gas outlet.
The gas inlet, the rotor, the heater, the catalyst, the gas outlet and the controller are each made of modules, and each module is detachably coupled. Modular VOCs removal system using an adsorption rotor and an oxidation catalyst. . The method according to claim 1,
Modified VOCs removal system using an adsorption rotor and an oxidation catalyst, characterized in that the heater portion used as the heat source of the rotor portion and the catalyst portion is manufactured in a shape corresponding to the outer shape of the duct. The method according to claim 1,
Modular VOCs removal system using an adsorption rotor and an oxidation catalyst, characterized in that the insulation to the outside of the outer wall of the modules, the outside to keep the insulation to prevent the external heat transfer of the modules. The method according to claim 1,
Modular VOCs removal system using an adsorption rotor and an oxidation catalyst, characterized in that one of the burner, plasma and microwave as a heat source of the heater. The method according to claim 1,
The gas from which VOCs have been removed through the catalyst unit is cooled in the rotor unit, and the catalyst unit is re-adsorbed to the rotor unit through a reactor fan provided in the gas discharge unit to resorb, concentrate, and desorb the VOCs that have not been removed. Modified VOCs removal system using the adsorption rotor and the oxidation catalyst, characterized in that the discharge to the outside through the catalytic reaction in the. The method according to claim 1,
The duct is a processor fan is installed inside, the appearance is made while changing the size and shape according to the amount of processing gas Modified VOCs removal system using the adsorption rotor and the oxidation catalyst. The method according to claim 1,
The modules are modular VOCs removal system using an adsorption rotor and an oxidation catalyst, characterized in that the respective modules are detachably coupled using a connection hole formed in a portion and a connection bolt connected to the connection hole. The method according to claim 1,
Modular VOCs removal system using the adsorption rotor and the oxidation catalyst, characterized in that the dustproof member is installed in the lower portion of the module to prevent vibration. VOCs removal method to remove and purify VOCs from VOCs gas discharged from industrial processes,
A gas inflow step of introducing the VOCs gas from a gas inflow unit introducing the VOCs gas through a duct;
An adsorption step of cooling and adsorbing the VOCs gas introduced through the gas inflow step into a rotor unit;
A first discharge step of discharging the gas purified through the adsorption step through a gas discharge part;
A concentration step of concentrating the VOCs gas adsorbed through the adsorption step in a rotor part;
A first heating step of heating the heater unit to increase the temperature to desorb the VOCs gas that has passed through the concentration step;
A desorption step of desorbing the VOCs gas heated through the first heating step from the rotor unit;
A second heating step of heating the desorbed VOCs gas through the desorption step to the heater unit for a catalytic reaction;
A catalytic oxidation step of removing VOCs by oxidizing the VOCs gas with a catalyst unit for oxidizing and removing the VOCs gas heated by the second heating step through a catalytic reaction;
A re-purification step of transferring the purified gas to the rotor unit and refining it to remove VOCs remaining in the purified gas through the catalytic oxidation reaction step; And
And a second discharge step of discharging the purified gas through the refining step through the gas discharge unit.
The gas inlet part, the rotor part, the heater part, the catalyst part, the gas discharge part and the control unit are each made of a module, characterized in that each module is detachably coupled, modular VOCs removal method using the adsorption rotor and the oxidation catalyst. . The method according to claim 9,
The refining step,
A cooling step of cooling the purified gas through a heat exchanger connected to the rotor part to remove VOCs remaining in the purified gas through the catalytic oxidation step;
A resorption step of resorption of the purified gas cooled through the cooling step in the rotor unit;
A reheating step of reheating the purified gas resorbed in the resorption step to the heater unit; And
Recatalyst oxidation step of removing the remaining VOCs while reoxidizing the purified gas heated through the reheating step in the catalyst unit; Modular VOCs removal using an adsorption rotor and an oxidation catalyst comprising a Way.

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