KR20210017903A - Catalyst reactor for Energy Saving - Google Patents

Abstract

The present invention relates to an energy-saving catalytic reactor and a catalytic reaction process. Particularly, the present invention relates to an energy-saving catalytic reactor, including: a main body including a dual tube having an external tube and an internal tube; an external heater provided on the outer surface of the external tube; an internal heater provided inside of the internal tube; and a catalyst layer provided in the space between the external tube and the internal tube and configured to decompose harmful gases introduced thereto, wherein the harmful gases are introduced through one end of the internal heater, flow in the internal tube, are heated by the internal heater, introduced into and decomposed by the catalyst layer, and then discharged.

Description

Energy saving catalytic reactor and catalytic reaction method {Catalyst reactor for Energy Saving}

The present invention relates to an energy-saving catalytic reactor and a catalytic reaction method.

The foaming process is performed for the purpose of reducing weight, imparting heat insulation, imparting cushioning, and preventing warpage, and is also referred to as foam molding. As resins, expanded styrene, polyurethane, and polyolefin are widely used, and there are low-foaming products (1-3 times magnification) and high-foaming products (40-50 times magnification).

In the foaming process, a foaming agent in which a polymer resin and various compounds are mixed is injected into an extruder, and mixing and melting are performed while passing through a high temperature and high pressure state.

After the polymer resin is sufficiently melted and completely mixed with the foaming agent, it is discharged from the extruder, and the mixture of the resin and the foaming agent undergoes a process in which the thickness and width of the resin and the foaming agent are determined by the metal plates installed at the upper and lower parts, and the molding process proceeds.

At this time, a large amount of blowing agent is discharged in the form of gas to the side where the gap between the upper plate and the lower plate formed in the discharge part of the extruder is maintained during the discharge process, and most of the foaming agents currently used are fluorinated gas (chlorofluorocarbon (CFC)). , Hydrochlorofluorocarbon (HCFC), hydrofluorocarbon (HFC), etc.), so substances that can accelerate global warming as ozone depleting substances are discharged into the atmosphere. Therefore, a process of recovering the fluorinated gas generated during the foaming process is essential.

The method of treating fluorinated gas is the recovery method (US Patent No. 2003-7016148/2003-76183/2000-42342/2000-3615/2002-21642/2000-58975, U.S. Patent No. 7,055,117 B2), plasma decomposition method (Korean Patent Application No. 2001-14373, etc.), and catalytic decomposition (Korean Patent Application No. 1998-48707/2002-7013638/2002-56218).

Among them, the recovery method is a method of separating the components contained in the waste gas using pressure swing adsorption (PSA) or a membrane, etc., and then recovering it.It is preferable in terms of recyclability, but fluorinated gas is discharged irregularly in small quantities. In the case of processing, it is a method with low economic efficiency.

Further, the direct combustion method is a method of directly burning a gas containing fluorinated gas using a combustible gas at a high temperature of 1400°C or higher, and is one of the simplest treatment methods. However, since the reaction temperature is high, various additional problems arise. That is, nitrogen and oxygen contained together with the fluorinated gas react to produce a large amount of thermal NOx, which is a harmful substance, as well as severe corrosion of the device due to HF generated during decomposition. It is expensive for maintenance and has a disadvantage of high cost because a large amount of combustible fuel is used to burn a large amount of exhaust gas.

In addition, the plasma decomposition method is a technology that decomposes and removes waste gas by passing it through the plasma region.PFC decomposes more than 90%, but it has a disadvantage that the efficiency rapidly decreases as the flow rate increases. Therefore, there is a problem in that various kinds of by-products are generated by a secondary reaction of radicals generated by indiscriminate decomposition. In addition, there are many problems in durability and economics of a plasma generating device for stably generating plasma for a long time.

On the other hand, the catalytic decomposition method uses a catalyst and steam to induce decomposition at a low temperature of 400 to 800℃, greatly reducing the generation of thermal NOx and corrosion of the device. A catalyst that exhibits higher reliability and decomposition efficiency than other technologies, has an activity capable of decomposing at a level of 100%, and has durability that maintains catalytic activity for a long period of time has been developed and is being used in a small exhaust gas treatment device.

However, in order to catalytically decompose the fluorinated gas F-gas, it is necessary to operate the catalytic reactor between 500 and 600°C, and it is generally heated using an electric heater. There is a need for an improved design of a catalytic reactor to save energy and efficiently heat up to the catalyst activation temperature.

Korean Patent Registration 10-1857678 Korean Patent Registration 10-194635 Korean Patent Registration 10-1134648 Korean Patent Registration 10-0766749

Therefore, the present invention was conceived to solve the conventional problems as described above, and according to an embodiment of the present invention, an external heater is installed to surround the outer outer surface of the double tubular body, and the cartridge is detachable inside the inner tube. A type of internal heater is installed, and a catalyst layer is provided in the space between the inner tube and the exterior, so that the catalytic reactor is heated through the external heater and the fluorinated gas flowing at the same time is preheated through the internal heater before the decomposition reaction through the catalyst layer occurs. Therefore, it is an object of the present invention to provide an energy-saving catalytic reactor and a catalytic reaction method capable of saving energy and heating more quickly and efficiently at a temperature for a catalytic reaction.

Meanwhile, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned are clearly to those of ordinary skill in the technical field to which the present invention belongs from the following description. It will be understandable.

A first object of the present invention is a catalytic reactor for decomposing harmful gases, comprising: a main body composed of a double tube having an exterior and an inner tube; An external heater provided on the outer surface of the exterior; An internal heater provided inside the inner tube; And a catalyst layer provided in the space between the exterior and the inner tube to decompose the incoming harmful gas, wherein the harmful gas is introduced through one end of the inner heater, flows through the inner tube, and is heated by the inner heater. , It can be achieved as an energy-saving catalytic reactor, characterized in that flowing into the catalyst layer, decomposed and discharged.

And the internal heater may be characterized in that it is configured in the form of a detachable cartridge.

In addition, the internal heater may be configured as a spiral heating member along the longitudinal direction, and the harmful gas may be flowed and heated along the spiral heating member.

Further, the harmful gas is introduced through the inlet of the harmful gas under the inner tube and flows to the upper side. After being heated by the internal heater, it is introduced into the catalyst layer, flows to the lower side, is decomposed, and then discharged.

In addition, it may be characterized in that a bead layer for supporting and heat storage of the catalyst layer is provided at the bottom of the catalyst layer.

In addition, the bead layer may be formed of an alumina bead layer to fix the gas reacted in the catalyst layer.

In addition, the external heater may be characterized in that it is composed of a ceramic heater.

And a measuring unit for measuring the flow rate or pressure of the harmful gas flowing into the catalytic reactor. A temperature sensor measuring the temperature of the catalyst layer or the internal heater; And a control valve for adjusting the flow rate of the harmful gas introduced into the harmful gas inlet.

In addition, the control valve may be controlled based on a value measured by a measurement unit, and a controller configured to control the internal heater and the external heater based on a temperature value measured by the temperature sensor may be further included.

And the noxious gas may be characterized in that fluorinated gas.

A second object of the present invention is a catalytic reaction method using a catalytic reactor according to the aforementioned first object, comprising: heating a catalyst layer by an external heater installed on an outer surface and an internal heater installed inside an inner tube; Introducing the harmful gas into the inner tube of the main body through the harmful gas inlet provided under the inner tube; A step of flowing and heating the harmful gas upward by a cartridge-type internal heater installed inside the inner tube; And flowing the heated harmful gas into the catalyst layer provided in the space between the inner tube and the outer surface of the main body, flowing downward, and decomposing. It can be achieved as an energy-saving catalytic reaction method comprising:

And after the decomposing step, the step of supporting the catalyst layer at a lower end of the catalyst layer, and introducing and immobilizing the decomposed gas into a bead layer for accumulating the catalyst layer may be further included.

In addition, measuring the flow rate or pressure of the harmful gas flowing into the catalytic reactor by a measuring unit; And measuring the temperature of the catalyst layer or the internal heater by a temperature sensor.

And the control unit controls the control valve based on the value measured by the measurement unit to control the flow rate of the incoming harmful gas, and controls the internal heater and the external heater based on the temperature value measured by the temperature sensor. It may be characterized in that it further comprises the step of controlling the temperature.

According to the energy-saving catalytic reactor and the catalytic reaction method according to an embodiment of the present invention, an external heater is installed to cover the outer outer surface of the double tubular body, and a cartridge type internal heater is installed to be detachable inside the inner tube, and By providing a catalyst layer in the space between the and the outer heater, while heating the catalytic reactor through an external heater, the fluorinated gas flowing at the same time is preheated through the internal heater before the decomposition reaction through the catalyst layer occurs. It has the effect of saving energy and heating quickly and efficiently.

On the other hand, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description. I will be able to.

The following drawings attached to the present specification illustrate a preferred embodiment of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is limited to the matters described in such drawings. It is limited and should not be interpreted.
1 is a cross-sectional view of the configuration of an energy-saving catalytic reaction system according to an embodiment of the present invention,
2 is a photograph of an energy-saving catalytic reaction system according to an embodiment of the present invention,
3 is a cross-sectional view of an energy-saving catalytic reactor according to an embodiment of the present invention,
4A is a front view of a cartridge-type internal heater according to an embodiment of the present invention,
Figure 4b is a photograph of a cartridge-type internal heater according to an embodiment of the present invention,
5 is a cross-sectional view of an energy-saving catalytic reactor according to an embodiment of the present invention showing a flow flow of fluorinated gas;
6 is a block diagram showing a signal flow of a control unit according to an embodiment of the present invention;
7 is a cross-sectional view of an energy-saving catalytic reactor according to another embodiment of the present invention,
8 is a flowchart illustrating an energy saving catalytic reaction method according to an embodiment of the present invention.

The above objects, other objects, features, and advantages of the present invention will be easily understood through the following preferred embodiments related to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed contents may be thorough and complete, and the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

In the present specification, when a component is referred to as being on another component, it means that it may be formed directly on the other component or that a third component may be interposed between them. In addition, in the drawings, the thickness of the components is exaggerated for effective description of the technical content.

Embodiments described herein will be described with reference to cross-sectional views and/or plan views, which are ideal exemplary views of the present invention. In the drawings, the thicknesses of films and regions are exaggerated for effective description of technical content. Therefore, the shape of the exemplary diagram may be modified by manufacturing technology and/or tolerance. Accordingly, embodiments of the present invention are not limited to the specific form shown, but also include a change in form generated according to the manufacturing process. For example, an area shown at a right angle may be rounded or may have a shape having a predetermined curvature. Accordingly, the regions illustrated in the drawings have properties, and the shapes of the regions illustrated in the drawings are intended to illustrate a specific shape of a device region and are not intended to limit the scope of the invention. In various embodiments of the present specification, terms such as first and second are used to describe various elements, but these elements should not be limited by these terms. These terms are only used to distinguish one component from another component. The embodiments described and illustrated herein also include complementary embodiments thereof.

The terms used in the present specification are for describing exemplary embodiments and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, "comprises" and/or "comprising" does not exclude the presence or addition of one or more other elements.

In describing the specific embodiments below, a number of specific contents have been prepared to explain the invention in more detail and to aid understanding. However, readers who have knowledge in this field to the extent that they can understand the present invention can recognize that it can be used without these various specific contents. In some cases, it is mentioned in advance that parts that are commonly known in describing the invention and are not largely related to the invention are not described in order to prevent confusion without any reason in describing the invention.

Hereinafter, an energy-saving catalytic reaction system 1 according to an embodiment of the present invention will be briefly described. First, FIG. 1 is a cross-sectional view showing the configuration of an energy-saving catalytic reaction system according to an embodiment of the present invention. And Figure 2 shows a photograph of the energy-saving catalytic reaction system according to an embodiment of the present invention.

In an embodiment of the present invention, the noxious gas to be decomposed may be a fluorinated gas. In the catalytic reaction system 1 for decomposing and immobilizing fluorinated gas, as shown in Fig. 1, first, fluorinated gas and water are introduced through the inlet pipe and passed through the preheater 2, whereby water is vaporized into steam. It can be seen that it is introduced into the catalytic reactor 100. In addition, the gas decomposed through the catalytic reactor 100 is introduced into the immobilization device 110 to be immobilized.

Hereinafter, the configuration and function of the energy-saving catalytic reactor 100 according to an embodiment of the present invention will be described. 3 is a cross-sectional view of an energy-saving catalytic reactor 100 according to an embodiment of the present invention.

As shown in Figure 3, the energy-saving catalytic reactor 100 according to the embodiment of the present invention is a main body 10 consisting of a double tube having an exterior 11 and an inner tube 12 as a whole, an external heater 20, It can be seen that the internal heater 30, the catalyst layer 40, and the like may be included. And the upper frame 14 is coupled to the upper portion of the main body 10, and the lower frame 15 is coupled to the lower side.

Therefore, the outer heater 20 is installed to surround the outer surface of the outer surface 11 of the double tubular body 10, and the cartridge type inner heater 30 is installed to be detachable inside the inner tube 12, and the inner tube 12 A catalyst layer 40 is provided in the space between) and the exterior 11 so that the fluorinated gas flowing simultaneously while heating the catalytic reactor 100 through the external heater 20 is before the decomposition reaction through the catalyst layer 40 occurs. By preheating through the internal heater 30 first, it is possible to save energy and heat more quickly and efficiently at a temperature for a catalytic reaction.

As shown in FIG. 3, the external heater 20 is configured to surround the outer surface of the exterior 11 and may be formed of a ceramic heater. Therefore, the catalyst layer 40 is heated by the external heater 20.

In addition, the inner heater 30 is installed in the inner tube 12 along the longitudinal direction. And the catalyst layer 40 is provided in the space between the outer tube 11 and the inner tube 12 to decompose the incoming harmful gas.

Noxious gas is introduced through the lower end of the internal heater 30, flows through the inner tube 12, is heated by the internal heater 30, and then flows into the catalyst layer 40 to be decomposed and discharged.

4A is a front view of a cartridge-type internal heater 30 according to an embodiment of the present invention, and FIG. 4B is a photograph of a cartridge-type internal heater 30 according to an embodiment of the present invention. 4A and 4B, it can be seen that the internal heater 30 according to the embodiment of the present invention is configured in a removable cartridge form.

And the cartridge-type inner heater 30 according to the present invention is configured to include an inner rod 32, and a heating member 31 provided in a spiral shape along the longitudinal direction on the outer surface of the inner rod 32. Therefore, the fluorinated gas flows along the spiral heating member 31 and is heated with a sufficient residence time and heat exchange surface area.

5 is a cross-sectional view of an energy-saving catalytic reactor 100 according to an embodiment of the present invention showing the flow of fluorinated gas. And Figure 6 shows a block diagram showing the signal flow of the control unit 60 according to an embodiment of the present invention.

As shown in Figure 5, after the noxious gas is introduced through the noxious gas inlet 13 under the inner tube 12, flows to the upper side of the inner tube 12, and is heated by the cartridge-type internal heater 30, It can be seen that it is introduced into the catalyst layer 40, flows downward, is decomposed, and then discharged.

In addition, as shown in FIG. 5, the energy-saving catalytic reactor 100 according to an embodiment of the present invention includes a bead layer 50 at the lower end of the catalyst layer 40 to support the catalyst layer 40, and the catalyst layer It is configured to be able to heat storage (40). In addition, the bead layer 50 is composed of an alumina bead layer 50 to fix some of the gas reacted in the catalyst layer 40.

And, as shown in Figure 6, the catalytic reactor 100 according to an embodiment of the present invention may include a measuring unit 62 for measuring the flow rate or pressure of the incoming harmful gas, the catalyst layer 40 or the inside It may be configured to include at least one temperature sensor 61 that measures the temperature of the heater 30. In addition, the flow rate of the harmful gas introduced into the harmful gas inlet 13 through the control valve 16 may be adjusted.

The control unit 60 controls the control valve 16 based on the value measured by the measurement unit 62, and the internal heater 30 and the external heater 20 based on the temperature value measured by the temperature sensor 61. ).

7 is a cross-sectional view of an energy-saving catalytic reactor 100 according to another embodiment of the present invention. In the energy-saving catalytic reactor according to another embodiment of the present invention, a preheater is integrally configured.

As shown in FIG. 7, in another embodiment, it is understood that the body, the external heater 20, the internal heater 30, the catalyst layer 40, and the bead layer 50 are included, as in the aforementioned catalytic reactor. I can.

Additionally, in another embodiment of the present invention, the housing 3, the cyclone preheater 2, and the external heater 20 include a spiral heating member.

The housing 3 is configured to contain a body 10 in the form of a double tube therein. In addition, a harmful gas inlet 13 is provided on the outer surface of the upper side of the housing 3. In addition, the external heater 20 is provided between the housing 3 and the exterior 11.

The internal heater 30 is provided inside the inner tube 12 and is configured in a removable cartridge type, and the catalyst layer 40 is provided in the space between the outer tube 11 and the inner tube 12 to decompose the incoming harmful gas. do.

In addition, the cyclone preheater 2 is provided on the upper side of the main body inside the housing 3, and is configured such that harmful gas flows into the cyclone preheater 2 in the normal direction through the harmful gas inlet 13.

Therefore, the noxious gas is introduced in the normal direction through the noxious gas inlet 13 and heated by the cyclone preheater 2, and then introduced to the external heater 20 and heated, and the lower end of the internal heater 30 is It flows through the inner pipe 11 and is heated by the internal heater 30, and then flows into the catalyst layer 40 to be decomposed and discharged.

In addition, in another embodiment of the present invention, a bead layer 50 for supporting and heat storage of the catalyst layer 40 is provided below the catalyst layer 40. As mentioned above, the external heater 20 is composed of a spiral heating member along the longitudinal direction, and harmful gas flows along the spiral heating member and is heated.

Hereinafter, an energy-saving catalytic reaction method according to an embodiment of the present invention will be described. 8 is a flowchart illustrating an energy saving catalytic reaction method according to an embodiment of the present invention.

First, the catalyst layer 40 is heated by the outer heater 20 installed on the outer surface of the exterior 11 and the inner heater 30 installed inside the inner tube 12 (S1).

In addition, fluorinated gas is introduced into the inner tube 12 of the main body 10 through the harmful gas inlet 13 provided under the inner tube 12 (S2).

And the fluorinated gas is heated by flowing to the upper side by the cartridge type internal heater 30 installed in the inner tube 12 (S3). At this time, the heating member 31 of the internal heater 30 is composed of a helical heating member 31 so that the fluorinated gas flows in a helical manner, so that it has a sufficient residence time and a heat exchange area to be efficiently heated.

Then, the heated fluorinated gas is introduced into the catalyst layer 40 provided in the space between the inner tube 12 and the exterior 11 of the main body 10, flows downward, and is decomposed (S4).

In addition, the decomposed gas is introduced into the bead layer 50 supporting the catalyst layer 40 at the lower end of the catalyst layer 40 and accumulating the catalyst layer 40 to be partially immobilized (S5).

In addition, the measurement unit 62 measures the flow rate or pressure of the harmful gas flowing into the catalytic reactor 100, and the temperature sensor 61 measures the temperature of the catalyst layer 40 or the internal heater 30.

In addition, the control unit 60 controls the control valve 16 based on the value measured by the measurement unit 62 to control the flow rate of the incoming harmful gas, and internally based on the temperature value measured by the temperature sensor 61 The temperature is adjusted by controlling the heater 30 and the external heater 20.

In addition, in the catalytic reaction method using the catalytic reactor according to another embodiment mentioned in FIG. 7, first, the catalyst layer is heated by an external heater installed on the outer surface of the upper exterior and an internal heater installed inside the inner tube.

In addition, the noxious gas is introduced into the cyclone preheater 2 in the normal direction through the noxious gas inlet 13 provided in the housing 3 to be heated.

And after the harmful gas flows into the external heater 20 provided between the exterior of the main body 11 and the inner surface of the housing 3 and is heated, the harmful gas flows into the inner tube 11 of the main body 10. ) It is introduced to the inside.

In addition, the harmful gas flows upward and is heated by the cartridge-type internal heater 30 installed inside the inner tube 11.

In addition, the heated harmful gas is introduced into the catalyst layer 40 provided in the space between the inner tube 12 and the exterior 11 of the main body, flows downward, and is decomposed.

In addition, the gas decomposed into the bead layer 50 supporting the catalyst layer 40 at the lower end of the catalyst layer 40 and accumulating the catalyst layer 40 is introduced, fixed, and discharged through the discharge unit 51.

In addition, the above-described apparatus and method are not limitedly applicable to the configuration and method of the above-described embodiments, but all or part of each of the embodiments may be selectively combined so that various modifications can be made to the embodiments. It can also be configured.

1: Energy-saving catalytic reaction system
2: preheater
3: Housing
10: the body
11: Appearance
12: Introspection
13: Hazardous gas inlet
14: upper frame
15: lower frame
16: control valve
20: External heater
30: internal heater
31: spiral heating member
32: inner rod
40: catalyst layer
50: bead layer
51: discharge part
60: control unit
61: temperature sensor
62: measurement unit
100: energy-saving catalytic reactor
110: fixing device

Claims (18)

In the catalytic reactor for decomposing harmful gases,
A main body composed of a double tube having an exterior and an inner tube;
An external heater provided on the outer surface of the exterior;
An internal heater provided inside the inner tube; And
Includes; a catalyst layer provided in the space between the outer tube and the inner tube to decompose the introduced harmful gas,
The noxious gas is introduced through one end of the internal heater, flows through the inner tube, is heated by the internal heater, and then flows into the catalyst layer to be decomposed and discharged.
The method of claim 1,
The internal heater is an energy-saving catalytic reactor, characterized in that configured in the form of a detachable cartridge.
The method of claim 2,
The internal heater is composed of a helical heating member along the longitudinal direction, and the harmful gas flows along the helical heating member and is heated.
The method of claim 2,
An energy-saving catalytic reactor characterized in that noxious gas is introduced through the noxious gas inlet at the bottom of the inner tube and flows to the upper side, heated by the internal heater, flows into the catalyst layer, flows to the lower side, is decomposed, and then discharged. .
The method of claim 4,
An energy-saving catalytic reactor, characterized in that a bead layer supporting the catalyst layer and storing heat is provided below the catalyst layer.
The method of claim 5,
The bead layer is composed of an alumina bead layer to immobilize the gas reacted in the catalyst layer, energy-saving catalytic reactor.
The method of claim 1,
The external heater is an energy-saving catalytic reactor, characterized in that consisting of a ceramic heater.
The method of claim 1,
A measuring unit for measuring the flow rate or pressure of the harmful gas flowing into the catalytic reactor;
A temperature sensor measuring the temperature of the catalyst layer or the internal heater; And
And a control valve for controlling the flow rate of the harmful gas flowing into the harmful gas inlet.
The method of claim 8,
And a controller configured to control the control valve based on a value measured by the measuring unit and to control the internal heater and the external heater based on a temperature value measured by the temperature sensor. Reactor.
The method of claim 1,
The toxic gas is an energy-saving catalytic reactor, characterized in that the fluorinated gas.
In the catalytic reaction method using the catalytic reactor according to any one of claims 1 to 10,
Heating the catalyst layer by an external heater installed on the outer surface of the exterior and an internal heater installed inside the inner tube;
Introducing the harmful gas into the inner tube of the main body through the harmful gas inlet provided under the inner tube;
A step of flowing and heating the harmful gas upward by a cartridge-type internal heater installed inside the inner tube; And
And a step of introducing the heated harmful gas into the catalyst layer provided in the space between the inner tube and the exterior of the main body, flowing downward, and decomposing.
The method of claim 11,
After the decomposing step,
The energy-saving catalytic reaction method further comprising the step of supporting the catalyst layer at a lower end of the catalyst layer, and introducing and immobilizing decomposed gas into a bead layer for accumulating the catalyst layer.
The method of claim 12,
Measuring a flow rate or pressure of the harmful gas flowing into the catalytic reactor by a measuring unit; And
Measuring the temperature of the catalyst layer or the internal heater by a temperature sensor; further comprising.
The method of claim 13,
The control unit controls the control valve based on the value measured by the measurement unit to control the flow rate of the incoming harmful gas, and controls the internal heater and the external heater based on the temperature value measured by the temperature sensor to Energy-saving catalytic reaction method, characterized in that it further comprises the step of controlling.
In the catalytic reactor for decomposing harmful gases,
A main body composed of a double tube having an exterior and an inner tube;
A housing containing the main body therein;
An external heater provided between the housing and the exterior;
An internal heater provided inside the inner tube and configured in a detachable cartridge type;
A catalyst layer provided in the space between the exterior and the inner tube to decompose the introduced harmful gas;
A cyclone preheater provided on an upper side of the main body inside the housing; And
Including; a noxious gas inlet for introducing the noxious gas into the cyclone preheater in the normal direction;
The noxious gas is introduced in the normal direction through the noxious gas inlet and heated by the cyclone preheater, then introduced to the external heater and heated, and flows through the inner tube by flowing through one end of the inner heater. After being heated by, the energy-saving catalytic reactor is introduced into the catalyst layer to be decomposed and discharged.
The method of claim 15,
An energy-saving catalytic reactor, characterized in that a bead layer supporting the catalyst layer and storing heat is provided below the catalyst layer.
The method of claim 16,
The external heater is composed of a helical heating member along the longitudinal direction, and the harmful gas flows along the helical heating member and is heated.
In the catalytic reaction method using the catalytic reactor according to any one of claims 15 to 17,
Heating the catalyst layer by an external heater installed on the outer surface of the upper exterior and an internal heater installed inside the inner tube;
A step in which noxious gas is introduced into a cyclone preheater side in a normal direction through a noxious gas inlet provided in the housing and heated;
Toxic gas is introduced into an external heater provided between an exterior of the body and an inner surface of the housing to flow and heat the external heater;
Introducing harmful gas into the inner tube of the main body;
A step of flowing and heating the harmful gas upward by a cartridge-type internal heater installed inside the inner tube;
Introducing the heated harmful gas into the catalyst layer provided in the space between the inner tube and the exterior of the main body, flowing downward, and decomposing; And
And a step of supporting the catalyst layer at a lower end of the catalyst layer, and introducing and immobilizing the decomposed gas into a bead layer for accumulating the catalyst layer.

Images