Electric heating reactor

Abstract

An electrically heated reactor is disclosed. The electrically heated reactor includes: at least one first reaction tube having a first channel through which a reactant passes and configured to heat the reactant passing through the first channel; at least one second reaction tube having a second channel through which the reactant passes, and configured to heat the reactant passing through the second channel; a first power source configured to supply power to the at least one first reaction tube; and a second power source configured to supply power to the at least one second reaction tube, where the first power source and the second power source may be independently controlled.

Description

Technical Field

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2023-0074916 filed in the Korean Intellectual Property Office on June 12, 2023, and Korean Patent Application No. 10-2024-0075968 filed in the Korean Intellectual Property Office on June 11, 2024, the entire contents of which are incorporated herein by reference.

[0003] The present disclosure relates to an electrically heated reactor in which the interior of a reactor housing is divided into a plurality of reaction zones, and each reaction zone is independently heated by utilizing an electric heating technique. Background Art

[0004] In the chemical industry, natural gas is used as a fuel to keep various equipment (e.g., crackers, reformers, reactors, or boilers) at high temperatures. However, heating by burning natural gas is not only inefficient in terms of energy consumption, but is also a major cause of carbon emissions. Therefore, efforts are being made to replace the heating method by burning natural gas with an electric heating method.

[0005] The above information disclosed in this Description of Related Art section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art. Summary of the invention

[0006] Technical issues

[0007] The present disclosure attempts to provide an electrically heated reactor in which the interior of a reactor housing is divided into a plurality of reaction zones, and each reaction zone is independently heated by utilizing an electric heating technique.

[0008] Technical Solution

[0009] According to one aspect of the present disclosure, an electrically heated reactor includes: at least one first reaction tube, the at least one first reaction tube having a first channel for reactants to pass through, and configured to heat the reactants passing through the first channel; at least one second reaction tube, the at least one second reaction tube having a second channel for reactants to pass through, and configured to heat the reactants passing through the second channel; a first power supply, the first power supply configured to supply power to the at least one first reaction tube; and a second power supply, the second power supply configured to supply power to the at least one second reaction tube, wherein the first power supply and the second power supply can be independently controlled.

[0010] The first channel may define a first reaction zone, and the second channel may define a second reaction zone.

[0011] The electrically heated reactor may also include: a first reactor inlet, which is connected to the first reaction zone to supply reactants to the first reaction zone; a first reactor outlet, which is connected to the first reaction zone to discharge reactants from the first reaction zone; a second reactor inlet, which is connected to the second reaction zone to supply reactants to the second reaction zone; and a second reactor outlet, which is connected to the second reaction zone to discharge reactants from the second reaction zone.

[0012] The first reaction zone and the second reaction zone may not be connected to each other inside the electrically heated reactor.

[0013] In one example, the electrically heated reactor may also include: a first mixer configured to receive a first type of reactant from a first type of reactant supply source, mix the first type of reactant, and supply the mixture of the first type of reactant to a first reaction tube; and a second mixer configured to receive a first type of reactant from a first type of reactant supply source, mix the first type of reactant, and supply the mixture of the first type of reactant to a second reaction tube.

[0014] The first reaction region and the second reaction region may be controlled to have the same temperature, and the first type reactant may be supplied from each of the first mixer and the second mixer to the first reaction region and the second reaction region to cause the same reaction.

[0015] In another example, the electrically heated reactor may also include: a first mixer configured to receive a first type of reactant from a first type of reactant supply source, mix the first type of reactant, and supply the mixture of the first type of reactant to a first reaction tube; and a second mixer configured to receive a second type of reactant from a second type of reactant supply source, mix the second type of reactant, and supply the mixture of the second type of reactant to a second reaction tube.

[0016] The first reaction zone and the second reaction zone may be controlled to have different temperatures, and a first type reactant may be supplied from the first mixer to the first reaction zone, and a second type reactant may be supplied from the second mixer to the second reaction zone to simultaneously cause different reactions.

[0017] At least one first reaction tube and at least one second reaction tube may be arranged inside the reactor shell along the length direction, a partition wall may be installed inside the reactor shell along the length direction to physically divide the space inside the reactor shell into a first section and a second section, and at least one first reaction tube may be arranged in the first section, and at least one second reaction tube may be arranged in the second section.

[0018] The electrically heated reactor may further include an insulator surrounding at least a portion of the first reaction tube and the second reaction tube to thermally insulate the first reaction tube and the second reaction tube.

[0019] Beneficial Effects

[0020] According to the present disclosure, by utilizing electric heating technology, the temperature inside the reactor can be maintained efficiently and uniformly.

[0021] In addition, the interior of the reactor housing can also be divided into multiple reaction zones, and each reaction zone can be heated independently. Therefore, a single electrically heated reactor can support a variety of reactions, which enables the manufacture of a variety of products.

[0022] Other effects that can be obtained or predicted by the embodiments of the present disclosure will be explicitly or implicitly described in the detailed description of the embodiments of the present disclosure. That is, various effects predicted according to the embodiments of the present disclosure will be described in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Embodiments of the present disclosure may be better understood by reference to the following description taken in conjunction with the accompanying drawings, in which like reference numbers indicate identical or functionally similar elements.

[0024] Figure 1 is a schematic cross-sectional view of an electrically heated reactor according to an embodiment of the present disclosure;

[0025] Figure 2 is a plan view illustrating a cross section of an electrically heated reactor according to an embodiment of the present disclosure;

[0026] Figure 3 illustrates an example of using an electrically heated reactor according to an embodiment of the present disclosure; and

[0027] Figure 4 Another example of using an electrically heated reactor according to an embodiment of the present disclosure is illustrated.

[0028] It should be understood that the above-mentioned drawings are not necessarily drawn to scale, but rather present a slightly simplified representation of various preferred features illustrating the basic principles of the present disclosure. The specific design features of the present disclosure as included herein, including, for example, specific dimensions, orientations, locations and shapes will be determined in part by the particular intended application and use environment. DETAILED DESCRIPTION

[0029] The terms used herein are used to describe specific embodiments and are not intended to limit the present disclosure. Unless the context clearly states otherwise, the singular form as used herein is also intended to include the plural form. It should also be understood that the terms "include" and / or "comprising" used in this specification specify the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, parts and / or their combinations. As used herein, the term "and / or" includes any combination or all combinations of one or more of the items listed in association.

[0030] In addition, it should be understood that one or more of the following methods or aspects thereof can be performed by at least one controller. The term "controller" can refer to a hardware device including a memory and a processor. The memory is configured to store program commands, and the processor is specially programmed to execute program commands to perform one or more processes described in more detail below. The controller can control the operation of the unit, module, component, device or the like as described herein. In addition, it should be understood that the following methods can be performed by a device including a controller and one or more other components as recognized by those skilled in the art.

[0031] In addition, the controller according to the present disclosure may be implemented as a non-transitory computer-readable recording medium including program commands that can be executed by a processor. Examples of computer-readable recording media may include read-only memory (ROM), random access memory (RAM), compact disk (CD) ROM, magnetic tape, floppy disk, flash drive, smart card, and optical data storage device, but the computer-readable recording medium is not limited thereto. The computer-readable recording medium may also be distributed on a computer network so that the program commands are stored and executed by a distributed method, such as a telematics server or a controller area network (CAN).

[0032] According to the present disclosure, the electric heating reactor includes: at least one first reaction tube, the at least one first reaction tube having a first channel for reactants to pass through, and configured to heat the reactants passing through the first channel; at least one second reaction tube, the at least one second reaction tube having a second channel for reactants to pass through, and configured to heat the reactants passing through the second channel; a first power supply, the first power supply is configured to supply electricity to the at least one first reaction tube; and a second power supply, the second power supply is configured to supply electricity to the at least one second reaction tube. With this configuration, according to the present disclosure, by utilizing electric heating technology, the temperature inside the reactor can be effectively and uniformly maintained.

[0033] The first power source and the second power source can be independently controlled. That is, the power supply to the first reaction area defined by the first channel and the power supply to the second reaction area defined by the second channel can be independently controlled.

[0034] The first reaction zone and the second reaction zone can be controlled to have different temperatures.When the first reaction zone and the second reaction zone are controlled to have the same temperature, the reaction zone can be expanded by supplying the same type of reactant to the first reaction zone and the second reaction zone.By contrast, when the first reaction zone and the second reaction zone are controlled to have different temperatures, the first type reactant can be supplied to the first reaction zone, and the second type reactant can be supplied to the second reaction zone, thus allowing different reactions to occur in a reactor.Therefore, a single electrically heated reactor can support various reactions, which makes it possible to manufacture various products.

[0035] In one example, the electric heating reactor may also include: a first mixer configured to receive a first type of reactant from a first type of reactant supply source, mix the first type of reactant, and supply the mixture of the first type of reactant to the first reaction tube; and a second mixer configured to receive a second type of reactant from a second type of reactant supply source, mix the second type of reactant, and supply the mixture of the second type of reactant to the second reaction tube. Therefore, in the first reaction zone, the first reactant may be controlled to a first temperature and a first reaction may occur, thereby producing a first product, and in the second reaction zone, the second reactant may be controlled to a second temperature and a second reaction may occur, thereby producing a second product.

[0036] The electric heating reactor may further include an insulator surrounding the first reaction tube and the second reaction tube to thermally insulate the first reaction tube and the second reaction tube. Therefore, energy efficiency may be improved by reducing unnecessary heat loss to the outside of the electric heating reactor.

[0037] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0038] Figure 1 is a schematic cross-sectional view of an electrically heated reactor according to an embodiment of the present disclosure. Figure 2 is a plan view illustrating a cross section of an electrically heated reactor according to an embodiment of the present disclosure.

[0039] like Figure 1 and Figure 2 As illustrated in FIG. 1 , the electrically heated reactor 10 according to an embodiment of the present disclosure may be configured to receive electricity to generate heat and heat the reactants inside the electrically heated reactor 10 by using the heat. The electrically heated reactor 10 may include a reactor housing 11, at least one first reaction tube 20, and at least one second reaction tube 30.

[0040] The reactor shell 11 may be formed in a substantially cylindrical shape, and a partition wall 19 may be installed inside the reactor shell 11 along the length direction to physically divide the space inside the reactor shell 11 into two sections. Therefore, the first section and the second section are not connected to each other inside the reactor shell 11. At least one first reaction tube 20 may be provided in the first section, and at least one second reaction tube 30 may be provided in the second section.

[0041] The first reactor inlet 12 communicating with the first section may be formed on one side of the reactor housing 11, and the first reactor outlet 14 communicating with the first section may be formed on the other side of the reactor housing 11. The first reactor inlet 12 and the first reactor outlet 14 may be in fluid communication with the first reaction tube 20, with the result that the reactant introduced into the first section of the reactor housing 11 through the first reactor inlet 12 may pass through the first reaction tube 20 and be electrically heated, and then be discharged from the first section of the reactor housing 11 through the first reactor outlet 14. Here, the reactant may be electrically heated within the first reaction tube 20, and a desired reaction may occur, and therefore, the region within the first reaction tube 20 will be referred to as a first reaction region 24.

[0042] In addition, a second reactor inlet 16 communicating with the second section may be formed on one side of the reactor housing 11, and a second reactor outlet 18 communicating with the second section may be formed on the other side of the reactor housing 11. The second reactor inlet 16 and the second reactor outlet 18 may be in fluid communication with the second reaction tube 30, with the result that the reactant introduced into the second section of the reactor housing 11 through the second reactor inlet 16 may pass through the second reaction tube 30 and be electrically heated, and then be discharged from the second section of the reactor housing 11 through the second reactor outlet 18. Here, the reactant is electrically heated within the second reaction tube 30, and a desired reaction may occur, and therefore, the region within the second reaction tube 30 will be referred to as a second reaction region 34.

[0043] Meanwhile, the first reaction region 24 and the second reaction region 34 may not be connected to each other inside the reactor shell 11, and may be connected to each other outside the reactor shell 11. More specifically, the reactant introduced into the first reaction region 24 through the first reactor inlet 12 may not be introduced into the second reaction region 34 inside the reactor shell 11, and may be discharged from the reactor shell 11 through the first reactor outlet 14. Similarly, the reactant introduced into the second reaction region 34 through the second reactor inlet 16 may not be introduced into the first reaction region 24 inside the reactor shell 11, and may be discharged from the reactor shell 11 through the second reactor outlet 18.

[0044] In addition, the number of partition walls 19 is not limited to one, the number of sections inside the reactor shell 11 is not limited to two, and the number of types of reaction tubes is not limited to two. Those skilled in the art can appropriately set the number of partition walls 19, the number of sections inside the reactor shell 11, and the number of types of reaction tubes as needed.

[0045] The first reaction tube 20 may be disposed in the first section and may be made of a metal material having a high resistivity, and a first channel for reactants to pass through may be formed inside the first reaction tube 20 along the length direction. For example, the first reaction tube 20 may be formed in the shape of an annular tube, and the first channel may be formed inside the first reaction tube 20 along the length direction. When power is applied to the first reaction tube 20, the first reaction tube 20 may generate heat due to the high resistivity, and the heat may heat the reactants in the first channel. Therefore, the first channel may define a first reaction region 24 in which a reaction of the reactants occurs.

[0046] One end of the first reaction tube 20 adjacent to the first reactor inlet 12 may define a first tube inlet 21, and the other end of the first reaction tube 20 adjacent to the first reactor outlet 14 may define a first tube outlet 22. The reactant introduced into the reactor housing 11 through the first reactor inlet 12 may be introduced into the first reaction tube 20 through the first tube inlet 21, pass through the first reaction zone 24 defined by the first channel, and be electrically heated to cause a desired reaction. The reactant reacted in the first reaction zone 24 may be discharged from the reactor housing 11 through the first tube outlet 22 and the first reactor outlet 14.

[0047] The second reaction tube 30 may be disposed in the second section, and may be made of a metal material having a high resistivity, and a second channel for reactants to pass through may be formed in the second reaction tube 30 along the length direction. For example, the second reaction tube 30 may be formed in the shape of an annular tube, and the second channel may be formed in the second reaction tube 30 along the length direction. When power is applied to the second reaction tube 30, the second reaction tube 30 may generate heat due to the high resistivity, and the heat may heat the reactants in the second channel. Therefore, the second channel may define a second reaction region 34 in which the reaction of the reactants occurs.

[0048] One end of the second reaction tube 30 adjacent to the second reactor inlet 16 may define a second tube inlet 31, and the other end of the second reaction tube 30 adjacent to the second reactor outlet 18 may define a second tube outlet 32. The reactant introduced into the reactor shell 11 through the second reactor inlet 16 may be introduced into the second reaction tube 30 through the second tube inlet 31, pass through the second reaction zone 34 defined by the second channel, and be electrically heated to cause a desired reaction. The reactant reacted in the second reaction zone 34 may be discharged from the reactor shell 11 through the second tube outlet 32 ​​and the second reactor outlet 18.

[0049] The first power source 40 may be configured to supply power to the first reaction tubes 20. That is, the first power source 40 may be electrically connected to all the first reaction tubes 20, and may supply the same amount of power to all the first reaction tubes 20. The first power source 40 may be an alternating current (AC) power source or a direct current (DC) power source.

[0050] The second power source 42 may be configured to supply power to the second reaction tubes 30. That is, the second power source 42 may be electrically connected to all the second reaction tubes 30, and may supply the same amount of power to all the second reaction tubes 30. The second power source 42 may be an AC power source or a DC power source.

[0051] The first power source 40 and the second power source 42 may be independently controlled. In particular, the amount of power supplied to the second reaction tube 30 by the second power source 42 may be different from the amount of power supplied to the first reaction tube 20 by the first power source 40. Therefore, the temperature of the first reaction region 24 and the temperature of the second reaction region 34 may be controlled differently from each other, and the reaction occurring in the first reaction region 24 and the reaction occurring in the second reaction region 34 may be different from each other.

[0052] Sockets (not shown) may be installed at one end and the other end of the first reaction tube 20, and the first power source 40 may supply power to the first reaction tube 20 through the sockets. Similarly, sockets (not shown) may be installed at one end and the other end of the second reaction tube 30, and the second power source 42 may supply power to the second reaction tube 30 through the sockets. In addition, a cooling device is installed on each of the sockets to cool the socket.

[0053] The insulator 50 may surround at least a portion of the first reaction tube 20 and the second reaction tube 30 to thermally insulate the first reaction tube 20 from the second reaction tube 30. Figure 2 As illustrated in FIG. 1 , the insulator 50 may surround the entire first reaction tube 20 and the second reaction tube 30, but is not limited thereto, and may surround only a portion of the first reaction tube 20 and the second reaction tube 30. Since the insulator 50 may thermally insulate the first reaction tube 20 and the second reaction tube 30 by surrounding the first reaction tube 20 and the second reaction tube 30, unnecessary heat loss to the outside of the first reaction tube 20 and the second reaction tube 30 may be reduced, so that energy efficiency may be improved, and the temperature inside the first reaction tube 20 and the second reaction tube 30 may be effectively and uniformly maintained.

[0054] In addition, the insulator 50 may electrically isolate the first reaction tube 20 and the second reaction tube 30 from the external environment, thereby preventing a safety accident that may occur due to current that may flow in the first reaction tube 20 and the second reaction tube 30 .

[0055] Figure 3 An example of using an electrically heated reactor according to an embodiment of the present disclosure is illustrated. In one example, the first reactant supply 60 may be configured to supply steam, the second reactant supply 62 may be configured to supply naphtha, and the third reactant supply 64 may be configured to supply ethane. Figure 3 The diagram shows a case where the first reaction zone 24 and the second reaction zone 34 are controlled to have the same temperature, whereby the steam cracking of naphtha occurs in both the first reaction zone 24 and the second reaction zone 34 .

[0056] like Figure 3As shown in the figure, the electrically heated reactor 10 may also include a first mixer 70 and a second mixer 72, the first mixer 70 being configured to receive a first reactant from at least one of the first reactant supply source 60, the second reactant supply source 62 and the third reactant supply source 64, mix the first reactant and supply the mixed first reactant to the first reaction tube 20, and the second mixer 72 being configured to receive a second reactant from at least one of the first reactant supply source 60, the second reactant supply source 62 and the third reactant supply source 64, mix the second reactant and supply the mixed second reactant to the second reaction tube 30.

[0057] The first reactant supply source 60 may be configured to constantly supply steam to both the first mixer 70 and the second mixer 72, the second reactant supply source 62 may be configured to selectively supply naphtha to the first mixer 70 and the second mixer 72 under the control of a controller (not shown), and the third reactant supply source 64 may be configured to selectively supply ethane to the first mixer 70 and the second mixer 72 under the control of a controller (not shown). Figure 3 In the example illustrated in , the first reactant supply source 60 may supply steam to both the first mixer 70 and the second mixer 72 , the second reactant supply source 62 may supply naphtha to both the first mixer 70 and the second mixer 72 , and the third reactant supply source 64 may not supply ethane to both the first mixer 70 and the second mixer 72 .

[0058] The first mixer 70 may receive steam from the first reactant supply source 60, receive naphtha from the second reactant supply source 62, mix the steam and the naphtha, and supply the mixture of the steam and the naphtha to the first reaction tube 20. The second mixer 72 may receive steam from the first reactant supply source 60, receive naphtha from the second reactant supply source 62, mix the steam and the naphtha, and supply the mixture of the steam and the naphtha to the second reaction tube 30. That is, the mixture of the steam and the naphtha may be supplied to the first reaction region 24 and the second reaction region 34.

[0059] The controller may control the first power source 40 and the second power source 42 to control the first reaction zone 24 and the second reaction zone 34 to have the same temperature. A mixture of steam and naphtha may be supplied to both the first reaction zone 24 and the second reaction zone 34, and the first reaction zone 24 and the second reaction zone 34 may be controlled to have the same temperature, with the result that steam cracking of naphtha may occur in both the first reaction zone 24 and the second reaction zone 34.

[0060] Figure 4 Another example of using an electrically heated reactor according to an embodiment of the present disclosure is illustrated. Figure 4The case is illustrated in which the first reaction zone 24 and the second reaction zone 34 are controlled to have different temperatures, with the result that naphtha steam cracking may occur in the first reaction zone 24 , and ethane steam cracking may occur in the second reaction zone 34 .

[0061] like Figure 4 As illustrated in the figure, the first reactant supply source 60 can supply steam to both the first mixer 70 and the second mixer 72, the second reactant supply source 62 can supply naphtha to the first mixer 70 but not to the second mixer 72, and the third reactant supply source 64 can supply ethane to the second mixer 72 but not to the first mixer 70.

[0062] The first mixer 70 may receive steam from the first reactant supply source 60, receive naphtha from the second reactant supply source 62, mix the steam and naphtha, and supply the mixture of steam and naphtha to the first reaction tube 20. The second mixer 72 may receive steam from the first reactant supply source 60, receive ethane from the third reactant supply source 64, mix the steam and ethane, and supply the mixture of steam and ethane to the second reaction tube 30. That is, the mixture of steam and naphtha may be supplied to the first reaction region 24, and the mixture of steam and ethane may be supplied to the second reaction region 34.

[0063] The controller may control the first power source 40 and the second power source 42 to control the first reaction zone 24 and the second reaction zone 34 to have different temperatures. A mixture of steam and naphtha may be supplied to the first reaction zone 24, a mixture of steam and ethane may be supplied to the second reaction zone 34, and the first reaction zone 24 and the second reaction zone 34 may be controlled to have different temperatures, with the result that naphtha steam cracking may occur in the first reaction zone 24, and ethane steam cracking may occur in the second reaction zone 34.

[0064] Figure 3 and Figure 4 The case where the electrically heated reactor 10 according to the embodiment of the present disclosure is used for at least one of naphtha steam cracking and ethane steam cracking is illustrated, but the use example of the electrically heated reactor 10 according to the embodiment of the present disclosure is not limited to Figure 3 and Figure 4In one example, the electrically heated reactor 10 can be used for reactions in which the types of reactants supplied to the first reaction zone 24 and the second reaction zone 34 are similar to each other and the reaction temperatures are similar to each other. Examples of reactions that meet such conditions may include, but are not limited to, methane steam reforming, methane dry reforming, and methane pyrolysis. In another example, the first reaction zone 24 and the second reaction zone 34 may be connected to a connecting channel (not shown) outside the reactor housing 11. The reactants may be preheated in one of the first reaction zone 24 and the second reaction zone 34, and the preheated reactants may be supplied to the other of the first reaction zone 24 and the second reaction zone 34, so that the main reaction occurs in the other of the first reaction zone 24 and the second reaction zone 34.

[0065] While the present invention has been described in conjunction with what are presently considered to be practical embodiments, it is to be understood that the present disclosure is not limited to the disclosed embodiments, but rather is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. An electrically heated reactor, comprising: at least one first reaction tube having a first channel for reactants to pass through and configured to heat the reactants passing through the first channel; at least one second reaction tube having a second channel for reactants to pass through and configured to heat the reactants passing through the second channel; a first power source configured to supply power to the at least one first reaction tube; as well as A second power source is configured to supply power to the at least one second reaction tube.

2. The electrically heated reactor according to claim 1, wherein: The first power source and the second power source are independently controlled.

3. The electrically heated reactor according to claim 1, wherein: The first channel defines a first reaction zone, and the second channel defines a second reaction zone, and The electrically heated reactor further comprises: a first reactor inlet, the first reactor inlet being in communication with the first reaction zone to supply the reactant to the first reaction zone; a first reactor outlet, the first reactor outlet communicating with the first reaction zone to discharge the reactants from the first reaction zone; a second reactor inlet communicating with the second reaction zone to supply the reactants to the second reaction zone; and A second reactor outlet is in communication with the second reaction zone to discharge the reactants from the second reaction zone.

4. The electrically heated reactor according to claim 3, wherein: The first reaction zone and the second reaction zone are not connected to each other inside the electrically heated reactor.

5. The electrically heated reactor according to claim 3, further comprising: a first mixer configured to receive a first type of reactant from a first type of reactant supply source, mix the first type of reactants, and supply the mixture of the first type of reactants to the first reaction tube; as well as A second mixer is configured to receive the first type of reactants from the first type of reactant supply source, mix the first type of reactants, and supply the mixture of the first type of reactants to the second reaction tube.

6. The electrically heated reactor according to claim 5, wherein: The first reaction zone and the second reaction zone are controlled to have the same temperature, and The first type reactant is supplied from each of the first mixer and the second mixer to the first reaction zone and the second reaction zone to cause the same reaction.

7. The electrically heated reactor according to claim 3, further comprising: a first mixer configured to receive a first type of reactant from a first type of reactant supply source, mix the first type of reactants, and supply the mixture of the first type of reactants to the first reaction tube; as well as A second mixer is configured to receive a second type of reactant from a second type of reactant supply source, mix the second type of reactants, and supply the mixture of the second type of reactants to the second reaction tube.

8. The electrically heated reactor according to claim 7, wherein: The first reaction zone and the second reaction zone are controlled to have different temperatures, and The first type reactant is supplied from the first mixer to the first reaction zone, and the second type reactant is supplied from the second mixer to the second reaction zone to simultaneously cause different reactions.

9. The electrically heated reactor according to claim 3, wherein: The at least one first reaction tube and the at least one second reaction tube are arranged along the length direction inside the reactor shell, A partition wall is installed inside the reactor shell along the length direction to physically divide the space inside the reactor shell into a first section and a second section, and The at least one first reaction tube is disposed in the first section, and the at least one second reaction tube is disposed in the second section.

10. The electrically heated reactor according to claim 1, further comprising: An insulator surrounds at least a portion of the first reaction tube and the second reaction tube to thermally insulate the first reaction tube and the second reaction tube.

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