Reactor

Abstract

A reactor capable of efficiently recovering a product and improving the reaction rate is provided. A reactor 1 for generating a predetermined product is introduced, during the input of a predetermined feed gas and the occurrence of an exothermic reaction due to the catalytic action of a predetermined catalyst 5. The reactor comprises a housing 2, which includes a gas input port 12a into which the feed gas is introduced, and a product output port 13b for withdrawing the generated product. The housing 2 is filled with the catalyst 5. The reactor also includes a control coolant line 3, arranged within the housing such that a control coolant flows in the control coolant line 3 to control a reaction temperature within the housing 2, and a condensation coolant line 4, arranged within the housing 2 such that a condensation coolant flows in the condensation coolant line 4.to cause condensation of the product on an outer circumferential surface of a longitudinal line section 4a, and a product guidance path 13c, which is provided in the housing 2 and leads the condensed product adhering to the outer circumferential surface of the longitudinal line section 4a to the product extraction port 13b.

Description

Technical field

[0001] The present invention relates to a reactor for producing a predetermined product while a predetermined starting gas is introduced and an exothermic reaction occurs due to a catalytic action of a predetermined catalyst. Technical background

[0002] In recent years, vehicle emissions controls have been further tightened to reduce harmful impacts on the global environment. In particular, carbon dioxide contained in emissions from combustion engines is considered a cause of global warming, and a reduction in carbon dioxide emissions is needed.

[0003] To effectively utilize the carbon dioxide as described above, patent literature 1 discloses a reaction device in which a starting gas containing hydrogen and carbon dioxide is introduced into a reactor which is filled with a predetermined catalyst to produce hydrocarbons in the reactor.

[0004] In this reaction apparatus, a first catalyst unit, which generates carbon monoxide from the feed gas, is located on the upstream side of the reactor, and a second catalyst unit, which generates hydrocarbons using the generated carbon monoxide and hydrogen, is located on the downstream side of the reactor. In the reactor described above, while a reverse shift reaction occurs in the first catalyst unit on the upstream side, a Fischer-Tropsch (FT) reaction occurs in the second catalyst unit on the downstream side. This FT reaction is an exothermic reaction, and in particular, since the exotherm is concentrated in the upstream section of the second catalyst unit, the temperature non-uniformity in the second catalyst unit is significant.To reduce such temperature non-uniformity, an inert catalyst is mixed into the upstream section of the second catalyst unit, thereby stabilizing the reaction in the second catalyst unit in the reaction apparatus described above by reducing the temperature difference throughout the second catalyst unit. List of citations, patent literature

[0005] Patent Literature 1: JP 2022-102704 A Outline of the invention: Technical task

[0006] In the reactor, as the reaction progresses and the product concentration increases, the rate of reaction decreases. Specifically, when the reaction reaches equilibrium, it will not proceed. Consequently, the product production efficiency and the reaction rate can decrease in the reactor.

[0007] The present invention was made to solve the problems described above, and one of its objectives is to provide a reactor capable of efficiently recovering a product and improving the reaction rate. Solution to the task

[0008] To solve the above problem, an invention according to claim 1 is a reactor 1 for producing a predetermined product while a predetermined feed gas is introduced and an exothermic reaction occurs due to a catalytic action of a predetermined catalyst 5, and which comprises a housing 2 which includes a feed gas inlet 12a into which the feed gas is introduced, and a product outlet 13b for removing the produced product, wherein the housing 2 is filled with the catalyst, wherein a first coolant flow path (control coolant line 3 in the present embodiment (the same applies in this paragraph)) is arranged in the housing, such that a predetermined first coolant (control coolant) flows in the first coolant flow path to control a reaction temperature in the housing, and a second coolant path (condensation coolant line 4) is arranged in the housing.such that a predetermined second coolant (condensation coolant) flows in the second coolant flow path to cause condensation of the product on an outer circumferential surface of the second coolant flow path, and a product guide path 13c is provided in the housing and directs the condensed product adhering to the outer circumferential surface of the second coolant flow path to the product withdrawal port.

[0009] In this configuration, the reactor housing is filled with the predetermined catalyst and equipped with a first coolant flow path to control the reaction temperature, a second coolant flow path to induce product condensation on the outer surface, and a product guide path to convey the condensed product to the product discharge port. When the predetermined feed gas is introduced into the housing through the feed gas inlet port, the exothermic reaction occurs due to the catalytic action of the catalyst, and the predetermined product is generated. The reaction temperature is controlled by the first coolant flow path. Additionally, in this case, the second coolant flows through the second coolant flow path to induce product condensation on the outer surface of the second coolant flow path.This means that the generated gaseous product condenses, and the liquid product adheres to the outer circumferential surface of the second coolant flow path. The condensed product is guided through the product discharge port of the housing via the product guide path and discharged to the outside.

[0010] As described above, the gaseous product generated by the reaction in the reactor casing condenses and adheres to the outer circumferential surface of the second coolant flow path, changing to a liquid state and thus allowing efficient product recovery. Additionally, because the concentration of the gaseous product in the casing can be reduced, the rate of reaction progress within the casing can be maintained at a high level, resulting in a greater improvement in the reaction rate than in a conventional reactor.

[0011] An invention according to claim 2 is the reactor according to claim 1, wherein the temperature of the second coolant is set to be lower than the temperature of the first coolant.

[0012] According to this configuration, the reaction is promoted, while the reaction temperature in the housing is controlled by the first coolant, and the gaseous product is condensed by the second coolant, which has a lower temperature than the first coolant, inducing condensation of the gaseous product on the outer surface of the second coolant flow path. In this way, according to the configuration described above, it is possible to achieve both the promotion of the reaction in the housing and the condensation of the product.

[0013] An invention according to claim 3 is the reactor according to claim 1, wherein the casing comprises a main body section 11, which is configured to have a tubular shape extending in a top-bottom direction, an upper wall section 12, which closes an upper end section of the main body section and is provided with the outlet gas inlet port, and a lower wall section 13, which closes a lower end section of the main body section and is provided with the product outlet port, wherein the second coolant flow path comprises a plurality of longitudinal flow path sections (longitudinal conduit sections 4a) extending in the top-bottom direction in the main body section and through which the second coolant flows, wherein the first coolant flow path comprises a plurality of catalyst holding sections 3c, each of which is configured toto surround each of the plurality of longitudinal flow path sections in a state in which they are spaced apart from an outer circumferential surface of each of the longitudinal flow path sections by a predetermined distance, and is arranged such that the first coolant flows to an outer circumferential section of each of the catalyst holding sections, and wherein the catalyst is filled between each of the longitudinal flow path sections and each of the catalyst holding sections.

[0014] According to this configuration, the housing comprises the main body section, which is designed to have a tubular shape extending in the top-bottom direction, and the upper and lower end sections of the main body section are closed by the upper and lower wall sections, respectively. Additionally, the second coolant flow path comprises the plurality of longitudinal flow path sections extending in the top-bottom direction within the main body section of the housing, through which the second coolant flows. Furthermore, the first coolant flow path comprises the plurality of catalyst holding sections, each designed to surround each of the plurality of longitudinal flow path sections of the second coolant flow path, and is configured such that the first coolant flows to the outer circumferential section of each catalyst holding section.The catalyst is placed between each of the longitudinal flow path segments and each of the catalyst retention sections. Since the first coolant flows to the outer circumferential section of each catalyst retention section of the first coolant flow path, the reaction temperature of the feed gas flowing through the catalyst, which is placed between the longitudinal flow path segment and the catalyst retention section, can be appropriately controlled. Additionally, since the second coolant flows through each of the longitudinal flow path segments of the second coolant flow path, the gaseous product generated in the catalyst retention section can be easily condensed on the outer circumferential surface of each of the longitudinal flow path segments.

[0015] An invention according to claim 4 is the reactor according to claim 3, wherein each of the catalyst holding sections is provided with a longitudinal flow path section cover (longitudinal conduit section cover 6) which has a tubular shape which separates the catalyst in the catalyst holding section from the longitudinal flow path section in a state in which it extends along the longitudinal flow path section and has a predetermined distance from the outer circumferential surface of the longitudinal flow path section, and which allows passage of gas and prevents contact of the catalyst with the longitudinal flow path section.

[0016] According to this configuration, each catalyst holding section is provided with a longitudinal flow path section cover, which has a tubular shape and separates the catalyst from the longitudinal flow path section when it extends along the longitudinal flow path section and maintains a predetermined distance from the outer circumferential surface of the longitudinal flow path section. The longitudinal flow path section cover is designed to allow gas passage while preventing contact between the catalyst in the catalyst holding section and the longitudinal flow path section.Accordingly, the condensed liquid product adhering to the outer circumferential surface of the longitudinal flow path section can fall along the outer circumferential surface of the longitudinal flow path section without escaping to the side provided with the catalyst and can be efficiently recovered.

[0017] An invention according to claim 5 is the reactor according to claim 4, wherein the longitudinal flow path section cover is made from a stamped plate in which a large number of through holes with a predetermined diameter are formed.

[0018] According to this configuration, by forming each through-hole in the die plate to have a diameter that does not allow passage of the catalyst, it is possible to easily obtain the longitudinal flow path section cover, which allows the gaseous product generated in the catalyst holding section to move from the side of the catalyst to the side of the longitudinal flow path section.

[0019] An invention according to claim 6 is the reactor according to one of claims 3 to 5, wherein the housing further comprises a post-reaction gas outlet port 13a for releasing a post-reaction gas in the lower wall section, and wherein the product withdrawal port is provided at a predetermined position which is displaced in a radial direction in the lower wall section of the housing and is different from that of the post-reaction gas outlet port.

[0020] According to this configuration, since the post-reaction gas outlet port is located in the lower wall section of the housing, the post-reaction gas remaining in the housing is gently vented to the outside through the post-reaction gas outlet port. Additionally, since the product withdrawal port is located at a predetermined position, offset radially in the lower wall section of the housing and different from that of the post-reaction gas outlet port, the liquid product is gently dispensed to the outside through the product withdrawal port without mixing with the post-reaction gas. Brief description of the drawings Fig. Figure 1 illustrates cross-sectional views of a reactor according to an embodiment of the present invention. Fig. 1(a) is a longitudinal cross-sectional view of the reactor and Fig. 1(b), Fig. 1(c), Fig. 1(d) and Fig. 1(e) are transverse cross-sectional views of the in Fig. 1(a) illustrated reactor, taken along lines bb, cc, dd and ee respectively. Fig. Figure 2 illustrates a reaction operation in the reactor. Fig. 2(a) is a longitudinal cross-sectional view of the reactor and Fig. 2(b) and Fig. 2(c) are transverse cross-sectional views of the in Fig. 2(a) illustrated reactor, taken along lines bb and cc. Fig. Figure 3 illustrates a flow of gas and a condensation of a product in a catalyst holding section in the reactor. Fig. 3(a) is a longitudinal cross-sectional view of the reactor, Fig. 3(b) is an enlarged view of a longitudinal conduit segment and its periphery, surrounded by the single-point dashed line in Fig. 3(a), and Fig. 3(c), Fig. 3(d) and Fig. 3(e) are transverse cross-sectional views of the in Fig. 3(b) illustrated enlarged view, taken along lines cc, dd and ee respectively. Description of embodiments

[0021] In the following, a preferred embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1(a) is a longitudinal cross-sectional view of a reactor according to an embodiment of the present invention, and Fig. 1(b), Fig. 1(c), Fig. 1(d) and Fig. 1(e) are transverse cross-sectional views of the in Fig. 1(a) illustrated reactor, taken along lines bb, cc, dd and ee respectively.

[0022] For example, reactor 1 is set up to produce a predetermined product (for example, a useful compound such as hydrocarbon or alcohol) while a predetermined starting gas (for example, a mixed gas of H2 (hydrogen) and CO (carbon monoxide) or CO2 (carbon dioxide)) is introduced and an exothermic reaction takes place therein.

[0023] As in Fig. As illustrated in Figure 1, the reactor 1 comprises a casing 2 extending in the top-bottom direction, a control coolant line 3 (first coolant flow path) through which a coolant (first coolant) (hereinafter referred to as the "control coolant") flows to control a reaction temperature in the casing 2, a condensation coolant line 4 (second coolant flow path) through which a coolant (second coolant) (hereinafter referred to as the "condensation coolant") flows to condense a product generated by a reaction, and a pellet-like catalyst 5 which is filled into the casing 2.

[0024] The housing 2 comprises a main body section 11, which is designed to have a tubular shape (cylindrical shape in the present embodiment) extending in the top-bottom direction by a predetermined length, an upper wall section 12, which closes an upper end section of the main body section 11 and is provided with an outlet gas inlet port 12a, and a lower wall section 13, which closes a lower end section of the main body section 11 and is provided with a post-reaction gas outlet port 13a and a product withdrawal port 13b.

[0025] The outlet gas inlet 12a and the post-reaction gas outlet 13a are located at the central sections of the upper wall section 12 and the lower wall section 13, respectively. Additionally, the product outlet 13b is located at a predetermined position, offset radially from the center of the lower wall section 13 and different from that of the post-reaction gas outlet 13a. To prevent condensed liquid product from being discharged from the post-reaction gas outlet 13a, the post-reaction gas outlet 13a is configured such that its upper end section projects to a position higher than a lower lateral section 4b of the condensation coolant line 4, which will be described later, and opens upwards.

[0026] The control coolant line 3 is provided in the housing 2, and an inlet port 3a for the control coolant is provided in the lower section of the housing 2, while an outlet port 3b is provided in the upper section of the housing 2. It should be noted that it is also possible to modify the top-bottom positional relationship between the inlet port 3a and the outlet port 3b depending on the process and the conditions of use of the reactor 1, the reaction conditions, and similar factors. Additionally, the control coolant line 3 is configured to surround a plurality (ten in the present embodiment) of catalyst retaining sections 3c, each of which is a through-hole extending a predetermined length in the top-bottom direction and having a specific diameter.

[0027] The condensation coolant line 4 comprises a plurality (ten in the present embodiment) of longitudinal line sections 4a (longitudinal flow path sections) which pass through the catalyst holding sections 3c of the control coolant line 3 described above and are arranged to extend in the top-bottom direction, a lower lateral line section 4b which connects lower end sections of the corresponding longitudinal line sections 4a and extends horizontally, and an upper lateral line section 4c which connects upper end sections of the corresponding longitudinal line sections 4a and extends horizontally.The lower lateral pipe section 4b is provided with an inlet port 4d for the condensation coolant, while the upper lateral pipe section 4c is provided with an outlet port 4e for the condensation coolant. It should be noted that it is also possible to change the positional relationship in the top-bottom direction between the inlet port 4d and the outlet port 4e depending on the procedure and the conditions of use of reactor 1, the reaction conditions, and similar factors.

[0028] Each of the longitudinal pipe sections 4a of the condensation coolant line 4 is provided with a longitudinal pipe section cover 6, which extends in the top-bottom direction to cover its outer circumference. The longitudinal pipe section cover 6 is made from a stamped plate in which a large number of through-holes of a predetermined diameter are formed, and is designed to have a cylindrical shape with an inner diameter slightly larger than the outer diameter of the longitudinal pipe section 4a and an outer diameter smaller than the diameter of the catalyst retaining section 3c of the control coolant line 3. Each of the through-holes of the longitudinal pipe section cover 6 is designed to be sized to allow the passage of gas but not the passage of catalyst pellets 5.

[0029] Depending on the starting gas and the product, the catalyst 5 is assumed to be a material that promotes a reaction when the product is generated (for example, Fe (iron), Zr (zirconium), Ga (gallium), and / or Na (sodium)). As described above, each catalyst 5 is formed into a pellet of a predetermined size. The catalyst 5 is filled into each catalyst holding section 3c of the control coolant line 3 in the housing 2 of the reactor 1. Specifically, in each catalyst holding section 3c, the catalyst 5 is filled between the inner circumferential surface of the catalyst holding section 3c and the longitudinal line section cover 6, which surrounds the longitudinal line section 4a of the condensation coolant line 4. As described in Fig. As illustrated in Figure 1(a), cavities are provided on the upper and lower sides of the control coolant line 3 in the housing 2, which are not filled with the catalyst 5. Accordingly, the reaction temperature in each catalyst holding section 3c can be advantageously controlled by the control coolant flowing in the control coolant line 3, and the output gas supplied from the output gas inlet port 12a can advantageously flow to each catalyst holding section 3c.

[0030] Next, a reaction example in reactor 1, which is set up as described above, will be presented with reference to Fig. 2 will be described. In the present reaction example, a starting gas, which is a mixture of H2 and CO2, is introduced into reactor 1, and a direct FT reaction, which is an exothermic reaction, is generated to produce hydrocarbons.

[0031] As in Fig. As illustrated in Figure 2(a), the output gas is introduced into reactor 1 through the output gas inlet port 12a on the upper section. In this case, the interior of reactor 1 is pressurized, and the control coolant at a predetermined temperature (e.g., 200 to 300°C) flows into the control coolant line 3 from the lower inlet port 3a towards the upper outlet port 3b, i.e., from the bottom to the top of reactor 1. Consequently, the direct FT reaction takes place in reactor 1 at a predetermined pressure (e.g., 3 MPa) and a predetermined temperature (e.g., 380°C), and a predetermined hydrocarbon (e.g., octane) and water are produced in a gaseous state.The control coolant flowing through the control coolant line 3 flows out of the outlet port 3b, is then cooled by a cooling device (not shown) and circulates in such a way that it flows back into the inlet port 3a.

[0032] In this case, the condensation coolant, at a predetermined temperature (200°C or lower) lower than that of the control coolant, flows through the condensation coolant line 4 from the lower inlet port 4d towards the upper outlet port 4e. Specifically, the condensation coolant entering the inlet port 4d passes through the lower lateral section 4b, the ten longitudinal sections 4a, and the upper lateral section 4c of the condensation coolant line 4 in that order and exits the outlet port 4e. The condensation coolant flowing through the condensation coolant line 4 exits the outlet port 4e, is then cooled by a cooling device (not illustrated), and circulates back into the inlet port 4d.

[0033] Fig. 3(a) and Fig. Figure 3(b) illustrates the gas and product flows and the state of product condensation when the direct FT reaction occurs in catalyst holding section 3c in reactor 1. As shown in Fig. As illustrated in Figure 3(b), the longitudinal conduit section cover 6, which is provided to cover the outer circumference of each longitudinal conduit section 4a, has an upper end section 6a without the through-holes formed by the die plate. That is to say, the upper end section 6a of the longitudinal conduit section cover 6 has an upper plate section 6b through which the corresponding longitudinal conduit section 4a passes, and an upper cylindrical end section 6c which is connected to a circumferential edge section of the upper plate section 6b and extends downwards by a predetermined length.The longitudinal pipe section cover 6 has a cylindrical cover main body section 6d, which is connected to a lower end circumferential edge section of the upper cylindrical end section 6c and extends relatively far towards the vicinity of the lower end of the control coolant line 3. The cover main body section 6d is provided with a large number of through-holes formed by the die-cut plate. A condensation chamber 7 with an annular transverse cross-section is defined between the upper cylindrical end section 6c and the cover main body section 6d of the longitudinal pipe section cover 6 described above, as well as between the longitudinal pipe section 4a, which is arranged within the upper cylindrical end section 6c, and the cover main body section 6d.

[0034] As described above, when the output gas is introduced into reactor 1, the output gas flows downwards while in contact with catalyst 5, which is placed in catalyst holding section 3c, as indicated by the downward arrow. Fig. 3(b) shown. In this case, the gaseous hydrocarbon and the water produced in the catalyst holding section 3c pass through the large number of through-holes in the cover main body section 6d of the longitudinal conduit section cover 6, pass through the condensation chamber 7 and move in the direction of the longitudinal conduit section 4a, as indicated by the inclined arrow pointing to the longitudinal conduit section 4a in Fig. 3(b) shows.

[0035] Since the upper end section 6a of the longitudinal conduit section cover 6 is not provided with the through-holes formed by the punch plate, it is possible to prevent the output gas flowing into the catalyst holding section 3c from above from flowing directly into the condensation chamber 7 or from flowing into the condensation chamber 7 with almost no contact with the catalyst 5.

[0036] As the condensing coolant flows through the condensing coolant line 4, the gaseous hydrocarbon and the water, which have moved in the direction of the longitudinal line section 4a, condense and adhere to the outer circumferential surface of the longitudinal line section 4a. In the following description, if the condensed hydrocarbon and the water are not distinguished, they are referred to collectively as a single product.

[0037] The product adhering to the outer circumferential surface of each of the longitudinal conductor sections 4a falls along the outer circumferential surface of the longitudinal conductor section 4a due to its own weight. Then in Fig. 2(c), as indicated by the arrow of a product guidance path 13c on the lower wall section 13, the liquid product is guided to the product withdrawal port 13b and withdrawn to the outside. The product guidance path 13c is not tubular, but is formed such that the upper surface of the lower wall section 13 is inclined forward and downward in the direction of the product withdrawal port 13b. Therefore, the liquid product that falls onto the upper surface of the lower wall section 13 automatically flows towards the product withdrawal port 13b and is withdrawn through the product withdrawal port 13b.

[0038] It should be noted that the post-reaction gas remaining in the housing 2 is released to the outside through the post-reaction gas outlet connection 13a, which is provided in the lower wall section 13 of the housing 2.

[0039] As described in detail above, according to reactor 1 of the present embodiment, when the feed gas is introduced into the housing 2 through the feed gas inlet port 12a, the exothermic reaction of the direct FT reaction occurs due to the catalytic action of the catalyst 5 and the reaction temperature control of the control coolant, and the gaseous product (hydrocarbon and water) is generated. In this case, as the condensation coolant flows through the condensation coolant line 4, the generated gaseous product condenses, and the liquid product adheres to the outer circumferential surface of the longitudinal section 4a of the condensation coolant line 4. The condensed product is conveyed to the product outlet port 13b via the product guide path 13c and is discharged to the outside.

[0040] As described above, the gas generated by the direct FT reaction in the housing 2 of reactor 1 is condensed and adheres to the outer circumferential surface of the longitudinal section 4a of the condensation coolant line 4, thus changing its state to a liquid state, thereby enabling efficient product recovery. Additionally, since the concentration of the gaseous product in the housing 2 can be reduced, the rate of the direct FT reaction carried out in the housing 2 can be maintained at a high level, thereby improving the reaction rate compared to that in the conventional reactor.

[0041] In reactor 1, the direct FT reaction is promoted, while the reaction temperature in housing 2 is maintained by the control coolant, and the gaseous product is condensed by the condensation coolant, which has a temperature lower than that of the control coolant. This condensation of the gaseous product occurs on the outer circumferential surface of the longitudinal section 4a of the condensation coolant line 4. Thus, according to the configuration described above, it is possible to achieve both the promotion of the direct FT reaction in housing 2 and the condensation of the product.

[0042] Furthermore, reactor 1 is equipped with a longitudinal conduit section cover 6, which is made from a stamped plate, to cover the outer circumferential surface of the longitudinal conduit section 4a that passes through each catalyst holding section 3c. Therefore, the liquid product adhering to the outer circumferential surface of the longitudinal conduit section 4a can fall along the outer circumferential surface of the longitudinal conduit section 4a without escaping to the side containing the catalyst 5 and can be efficiently recovered.

[0043] Furthermore, the lower wall section 13 of the housing 2 is provided with the post-reaction gas outlet port 13a on its central section and is provided with the product withdrawal port 13b at a predetermined position offset radially from the central section and different from that of the post-reaction gas withdrawal port 13a. Accordingly, the post-reaction gas remaining in the housing 2 can be gently discharged to the outside through the post-reaction gas outlet port 13a, and the liquid product can be gently withdrawn to the outside through the product withdrawal port 13b without being mixed with the post-reaction gas.

[0044] It should be noted that the present invention is not limited to the embodiment described above and can be carried out in various modes. For example, the embodiment described describes the case in which the direct FT reaction for the production of hydrocarbons from the starting gas containing H2 and CO2 is carried out by reactor 1; however, the reactor of the present invention is not limited to this and can be applied to a reaction in which an exothermic reaction occurs in the housing 2 of reactor 1, the starting gas contains no liquid component at a reaction pressure at room temperature, and the product contains a large amount of a liquid component at a reaction pressure at room temperature. For example, reactor 1 can also be applied to a methanol synthesis reaction to produce CH3OH (methanol) from a starting gas containing H2 and CO2.

[0045] In this embodiment, the ten catalyst holding sections 3c of the control coolant line 3 and the ten longitudinal line sections 4a of the condensation coolant line 4 are provided in the reactor 1. However, the number of catalyst holding sections 3c and the number of longitudinal line sections 4a are not limited to specific values ​​and can be one or more than ten, depending on the size, shape, and other characteristics of the reactor.

[0046] Furthermore, the detailed configurations and similar features of the housing 2, the control coolant line 3, the condensation coolant line 4, the catalyst 5 and the longitudinal line section cover 6 of the reactor 1, which are described in the embodiment, are merely examples and can therefore be appropriately modified within the scope of the spirit of the present invention. Reference symbol list 1 reactor 2 cases 3 Control coolant line (first coolant flow path) 3a Inlet connection 3b Outflow connection 3c Catalyst holding section 4 Condensation coolant line (second coolant flow path) 4a longitudinal conduit section (longitudinal flow path section) 4b lower lateral conduit segment 4c upper lateral line section 4d Inlet connection 4e Outlet connection 5 catalyst 6 longitudinal conduit section coverage (longitudinal flow path section coverage) 6a upper end section of the longitudinal conduit section cover 6b upper plate section 6c upper cylindrical end section 6d Cover - Main Body Section 7 Condensation chamber 11 Main body section of the shell 12 upper wall section of the housing 12a Outlet gas inlet 13 lower wall section of the housing 13a Post-reaction gas outlet connection 13b Product dispensing port 13c Product Guidance Path QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] JP 2022-102704 A

[0005]

Claims

[1] Reactor for producing a predetermined product while a predetermined starting gas is introduced and an exothermic reaction occurs due to a catalytic action of a predetermined catalyst, the reactor comprising: a housing comprising an output gas inlet port into which the output gas is introduced, and a product outlet port for removing the produced product, wherein the housing is filled with the catalyst; a first coolant flow path which is arranged in the housing such that a predetermined first coolant flows in the first coolant flow path to control a reaction temperature in the housing; a second coolant path arranged in the housing such that a predetermined second coolant flows in the second coolant flow path to cause condensation of the product on an outer circumferential surface of the second coolant flow path; and a product guidance path which is provided in the housing and the condensed product adhering to the outer circumferential surface of the second coolant flow path leads to the product extraction port. [2] Reactor according to claim 1, wherein the temperature of the second coolant is set to be lower than the temperature of the first coolant. [3] Reactor according to claim 1, wherein the casing comprises a main body section which is designed to have a tubular shape extending in a top-bottom direction, an upper wall section which closes an upper end section of the main body section and is provided with the outlet gas inlet port, and a lower wall section which closes a lower end section of the main body section and is provided with the product outlet port, wherein the second coolant flow path comprises a plurality of longitudinal flow path sections which extend in the top-bottom direction in the main body section and through which the second coolant flows, wherein the first coolant flow path comprises a plurality of catalyst holding sections, each of which is configured to surround each of the plurality of longitudinal flow path sections in a state in which it is spaced from an outer circumferential surface of each of the longitudinal flow path sections by a predetermined distance, and is arranged such that the first coolant flows to an outer circumferential section of each of the catalyst holding sections, and wherein the catalyst is filled between each of the longitudinal flow path sections and each of the catalyst holding sections. [4] Reactor according to claim 3, wherein each of the catalyst holding sections is provided with a longitudinal flow path section cover which has a tubular shape which separates the catalyst in the catalyst holding section from the longitudinal flow path section in a state in which it extends along the longitudinal flow path section and has a predetermined distance from the outer circumferential surface of the longitudinal flow path section, and which allows passage of gas and prevents contact of the catalyst with the longitudinal flow path section. [5] Reactor according to claim 4, wherein the longitudinal flow path section cover is made from a stamped plate in which a large number of through holes with a predetermined diameter are formed. [6] Reactor according to any one of claims 3 to 5, wherein the casing further comprises a post-reaction gas outlet connection for releasing a post-reaction gas in the lower wall section, and wherein the product withdrawal port is provided at a predetermined position which is offset in a radial direction in the lower wall section of the housing and is different from that of the post-reaction gas outlet port.

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