KR102520181B1 - Continuous flow reactor - Google Patents

Abstract

The present invention provides a continuous flow reactor for uniform mixing and chemical reaction of a fluid mixture to improve the problems of the prior art. The continuous flow reactor includes a reactant passage, wherein the reactant passage includes a first main passage, a second main passage, and a chamber. According to the present invention, uniform mixing and chemical reaction of a fluid reactant is possible compared to a conventional continuous flow reactor.

Description

Continuous flow reactor {CONTINUOUS FLOW REACTOR}

The present invention relates to continuous flow reactors, and more particularly to continuous flow reactors for uniform mixing and chemical reactions of fluid reactants.

In recent years, the importance of micro-sized components for process engineering has increased in the fields of chemistry, pharmaceuticals and life sciences. Accordingly, other process devices such as micro reactors, heat exchangers, static mixers, etc. can be manufactured with small devices up to a millimeter in size, which require micrometer-sized processes. In particular, in the fields of chemical industry, automobile industry, and environmental technology, research on micro process engineering is being actively conducted, and devices such as micro-structured reactors, heat exchangers, and mixers are being developed.

Among them, a micro reactor is also called a continuous flow reactor, and is a device for obtaining a product through a chemical reaction between two or more fluids that can flow. Micro reactors are used in many flow chemistry and continuous process processes because they are efficient in heat transfer and mass transfer due to chemical reactions of fluids due to their large specific surface area despite their small size. In obtaining a product using a microreactor, it is important to obtain a product with high purity under safe reaction conditions.

Accordingly, there is a need for a continuous flow reactor capable of uniform mixing and chemical reaction to obtain safe and high-quality products.

Korean Registered Patent No. 10-1200929 (2012.11.07) Korean Registered Patent No. 10-2337597 (2021.12.06)

The present invention is to improve the problems of the prior art, and to provide a continuous flow reactor for uniform mixing and chemical reaction of fluid reactants.

In one aspect, the present invention relates to a continuous flow reactor comprising a reactant passage, wherein the reactant passage includes a first main passage, a second main passage, and a chamber, wherein the first main passage and the second main passage contain a reactant Disposed in series along the flow path, the chambers include a first chamber and a second chamber disposed in series along the flow path of the reactants between the first main passage and the second main passage, the first chamber into which the reactants flow It includes an inlet, an outlet through which the reactant flows out, and a direction changing element for changing the direction of the reactant passage, and the first main passage is first assisted by the direction changing element in a branching area located adjacent to the inlet of the first chamber. It is branched into a passage and a second auxiliary passage, and the branched first auxiliary passage and the second auxiliary passage are each changed in direction in the direction changing area located in the first chamber, and in the coupling area located adjacent to the outlet of the first chamber. They are connected to each other, and the direction change angle of the reactant passage, which is changed as the first main passage diverges into the first auxiliary passage and the second auxiliary passage, is less than 90 degrees, and the direction changing element has a vertex at the upstream side and is centered around the vertex. It is possible to provide a continuous flow reactor wherein the interior angle is less than 90 degrees and the first auxiliary passage is configured such that the width in the diverting section is greater than the width in the diverging section.

In one embodiment, the present invention can provide a continuous flow reactor capable of uniform mixing and chemical reaction of fluid reactants compared to conventional continuous flow reactors.

1 is a schematic diagram of a continuous flow reactor according to one embodiment of the present invention.
2 is an enlarged schematic view of a portion of a continuous flow reactor according to one embodiment of the present invention.
3 is an enlarged schematic view of a portion of a continuous flow reactor according to another embodiment of the present invention.
4 is an enlarged schematic view of a portion of a continuous flow reactor according to another embodiment of the present invention.
5 is an enlarged schematic view of a portion of a continuous flow reactor according to another embodiment of the present invention.

The CONTINUOUS FLOW REACTOR of the present invention may be a device used to obtain a product through chemical reaction synthesis of one or more fluids passing through micrometer or larger passages.

According to one embodiment of the present invention, the continuous flow reactor can be made of a material that is easy to mold and has high corrosion resistance, nonflammability and chemical durability. Specifically, a material with high chemical durability means a material that can withstand an explosion due to a chemical reaction. The continuous flow reactor according to one embodiment of the present invention may be composed of a material having mechanical properties that can withstand harsh chemical reaction environments such as explosiveness, acidity, and heat generation. Regarding mechanical properties that can withstand harsh chemical reaction environments, for example, corrosion resistance, non-flammability, high strength and high chemical durability may be the like. In addition, the material may be, for example, a metal material, a ceramic material, a plastic material, a plastic composite material, or a ceramic composite material. In addition, it may be coated with a ceramic material that is resistant to chemicals and heat.

A reactant of the present invention means a substance comprising one or more fluids. More specifically, the reactant of the present invention may refer to a material composed of one or more fluids capable of causing a chemical reaction due to physical or chemical mixing.

The fluid of the present invention may be a material having flowable fluid properties. Specifically, a fluid may be a flowable substance comprising one or more different components or particles. For example, the fluid may be a flowable substance comprising solid particles such as a slurry. The above slurry is only an example of the fluid, and the fluid of the present invention is not limited to the slurry.

Types of the fluids of the present invention may be classified according to their constituent chemical formulas or phases. Accordingly, one or more fluids may mean fluids having different chemical formulas or different phases.

The chemical reaction of the present invention is a chemical synthesis reaction that produces a product, and may be, for example, a digestion reaction, an oxidation reaction, halogenation, nitration, or a reaction using a toxic gas, but the present invention is not limited thereto. Accordingly, the chemical reaction of the reactant of the present invention may be a chemical synthesis reaction of fluids constituting the reactant. In addition, the product of the present invention means a material produced through a chemical reaction of reactants.

Further, the chemical reaction of the present invention may be a multi-step chemical reaction having two or more steps occurring consecutively. Specifically, in a chemical reaction having two or more successive steps, intermediate and final products are produced through sequential and successive steps. More specifically, in a chemical reaction having two or more steps, intermediate products are produced in each of the steps preceding the final step, and the final product produced in the final step may be produced through a chemical reaction of the intermediate product produced in the previous step. .

A product of the present invention refers to any substance produced through a chemical reaction of reactants. In addition, the product is not limited to a fluid, and may have a solid, liquid, or gas phase. In a chemical reaction of two or more stages, a product may be a product comprising at least one of an end product or an intermediate product. Intermediate products may refer to incomplete molecules with strong energy in a short time, and may be reaction intermediates or intermediates. Accordingly, the intermediate product is not stable due to its high reactivity, and a chemical reaction with another substance or other molecule may quickly occur in order to be converted into a stable final product. That is, in the present invention, the final product is in a chemically stable state, and the intermediate product is in an unstable state. The following description of the product may be a description of all products unless separately described as a final product or an intermediate product.

The flow of the present invention may mean that a fluid moves while flowing due to diffusion or an external force. Here, the external force may mean, for example, gravity or capillary adhesion, but the external force related to the flow of the present invention is not limited thereto. Specifically, in the present invention, flowing a reactant including one or more fluids may mean moving while flowing in a certain direction.

Hereinafter, a continuous flow reactor capable of uniform mixing and chemical reaction according to one embodiment of the present invention will be described with reference to the drawings.

1 is a schematic diagram of a continuous flow reactor according to one embodiment of the present invention.

Referring to FIG. 1, the continuous flow reactor 100 of the present invention includes a first inlet 110 and a second inlet 120 into which one or more reactants can be injected, and a reactant passage 200 through which the injected reactants pass. , and may include an outlet 130 through which products or fluids passing through the reactant passage 200 may be discharged.

Meanwhile, the reactant passage 200 may include a first main passage 201 and a second main passage 202 arranged in series along the flow path of the reactants. In one embodiment of the present invention, the first main passage 201 is disposed adjacent to the first inlet 110 and the second inlet 120, and the second main passage 202 is disposed adjacent to the outlet 130. It may be, but is not limited thereto. In another embodiment, as described in detail below, the first main passage 201 is disposed upstream of the first chamber (Fig. 2, 310), and the second main passage 202 is disposed upstream of the second chamber (Fig. 2, 310). 2, 320) may be disposed downstream.

In addition, the reactant passage 200 may include a plurality of chambers 300 continuously arranged in series between the first main passage 201 and the second main passage 202 .

2 is an enlarged schematic view of a portion of a continuous flow reactor according to one embodiment of the present invention. Figure 2 (a) and (b) is a view separately presented for a clear description of the same part of the continuous flow reactor of the present invention.

Referring to FIG. 2 , the chamber 300 includes a first chamber 310 and a second chamber 320 disposed in series along the flow path of reactants between the first main passage 201 and the second main passage 202. ) may be included.

The first chamber 310 may include an inlet 311 through which reactants flow, an outlet 312 through which reactants flow out, and a direction changing element 313 that changes the direction of the reactant passage.

The first main passage 201 is a first auxiliary passage 210 and a second auxiliary passage by the direction changing element 313 in the branch area 410 located adjacent to the inlet 311 of the first chamber 310. (220). Hereinafter, the present invention will be mainly described centering on the first auxiliary passage 210, and the second auxiliary passage 220 has a left-right symmetrical structure with respect to the center line of the first main passage 201 unless otherwise specified. can be understood as having been made.

The branched first auxiliary passage 210 and the second auxiliary passage 220 are diverted in the direction changing area 420 located in the first chamber 310, respectively, so that the outlet 312 of the first chamber 310 Can be connected to each other in the coupling area 430 located adjacent to.

Referring to (b) of FIG. 2, the direction change angle α of the reactant passage, which is changed while the first main passage 201 is branched into the first auxiliary passage 210 and the second auxiliary passage 220, is 90 degrees. less than 10 degrees, greater than 10 degrees and less than 90 degrees, greater than 20 degrees and less than 90 degrees, or greater than 30 degrees and less than 90 degrees. When the direction change angle α of the reactant passage is within the above range, the resistance of the direction change element 313 to the flow of the reactants is minimized, so that smooth flow of the reactants can be ensured. On the other hand, when the direction change angle (α) of the reactant passage exceeds the above range, the resistance of the direction change element 313 to the flow of the reactants increases, obstructing the smooth flow of the reactants, thereby reducing the flow of the reactants in the branching zone 410. There may be issues with congestion. The size of the angle α may be included in the present invention within a tolerance range.

The direction changing element 313 may have a vertex A at an upstream-side front end. The direction changing element 313 has an interior angle (β) of less than 90 degrees, more than 10 degrees and less than 90 degrees, more than 20 degrees and less than 90 degrees, more than 30 degrees and less than 80 degrees, more than 40 degrees and less than 70 degrees around the vertex A. , or greater than 50 degrees and less than 60 degrees. The direction change element 313 includes a vertex A at the front end and forms a wedge-shaped structure with an interior angle less than 90 degrees around the vertex A, so that the reactant flowing along the first main passage 201 is wedged. It can be effectively separated into the first auxiliary passage 210 and the second auxiliary passage 220 by the direction changing element 313 of the type structure. That is, reactants can be effectively separated in the diverging zone 410 without a vortex phenomenon by the direction change element 313 having a wedge-shaped tip.

Referring to FIGS. 2(b) and 3(b) , the first auxiliary passage 210 has a width w2 in the turning area 420 greater than a width w1 in the branching area 410. It can be configured to be larger. Due to this configuration, the flow rate of the reactant passing through the first auxiliary passage 210 is relatively faster in the branching area 410 and relatively slower in the direction changing area 420 .

On the other hand, in another embodiment, referring to (b) of FIG. 2, the first auxiliary passage 210 will be configured such that the width w1 is maintained constant from the branching area 410 to just before the turning area 420. can Due to this configuration, the flow rate of the reactants passing through the first auxiliary passage 210 is maintained constant from the branching area 410 to just before the direction changing area 420, and then rapidly slows down when reaching the direction changing area 420. do.

3 is an enlarged schematic view of a portion of a continuous flow reactor according to another embodiment of the present invention. Figure 3 (a) and (b) is a view separately presented for a clear description of the same part of the continuous flow reactor of the present invention.

Referring to FIG. 3 , the width w of the first auxiliary passage 210 may gradually increase as it goes from the diverging area 410 to the direction changing area 420 . Due to this configuration, the flow rate of the reactants passing through the first auxiliary passage 210 is gradually slowed while going from the diverging section 410 to the direction changing section 420 .

In another embodiment, referring to FIGS. 2 (b) and 3 (b), the first auxiliary passage 210 has a width w1 in the branching area 410 and a direction changing area 420. Of the width w2 of and the width w3 of the coupling area 430, the width w2 in the direction changing area 420 may be the largest. Due to this configuration, the flow rate of the reactants passing through the first auxiliary passage 210 is relatively fast in the branching section 410, then becomes the slowest in the direction conversion section 420, and then again in the coupling section 430. becomes faster with

As described above, it can be understood that the second auxiliary passage 220 has a left-right symmetrical structure with respect to the center line of the first main passage 201 unless otherwise specified. Therefore, the flow rate of the reactants passing through the second auxiliary passage 220 is also relatively fast in the branching zone 410, then becomes the slowest in the direction conversion zone 420, and then becomes relatively fast again in the coupling zone 430.

Due to this configuration, the flow rate of the reactants passing through the first auxiliary passage 210 and the reactants passing through the second auxiliary passage 220 is slowed in the direction conversion zone 420 and then rapidly increased in the coupling zone 430. They collide strongly with each other and merge. In this way, since the reactants strongly collide and join in the coupling zone 430, uniform mixing and chemical reaction of reactants made of two or more types of fluids may be possible.

In another embodiment, referring to FIGS. 2 and 3 , the first chamber 310 and the second chamber 320 may be interconnected by a chamber connection passage 330 . Specifically, the outlet of the first chamber 310 may be connected to the first end of the chamber connection passage 330, and the inlet of the second chamber 320 may be connected to the second end of the chamber connection passage 330. Here, one end of the chamber connection passage 330 is the first end, and the other end is the second end.

Meanwhile, the minimum width of the first auxiliary passage 210 may be greater than or equal to the minimum width w4 of the chamber connection passage 320 . Specifically, the chamber connection passage 320 may have a minimum width w4 at a first end connected to the first chamber 310 and a second end connected to the second chamber 320 . In this case, the width w4 of the first end and the second end of the chamber connection passage 320 is the width w1 of the first auxiliary passage 210 in the branch area 410 and the width w1 of the coupling area 430. It may be configured to be smaller than or equal to the width w3. Due to this configuration, the flow rates of the reactants at the first end and the second end of the chamber connection passage 320 may be equal to or faster than the flow rates of the reactants at the branching section 410 and the coupling section 430. In particular, since the reactant flowing relatively quickly at the second end of the chamber connection passage 320 quickly enters the branching area of the second auxiliary passage 220, it can be effectively separated by the direction changing element.

4 is an enlarged schematic view of a portion of a continuous flow reactor according to another embodiment of the present invention.

Referring to FIG. 4 , the chamber connection passage 330 includes a convex portion 335, and the maximum width w5 of the convex portion 335 is greater than the minimum width of the first auxiliary passage 210. It may be configured to be smaller than the maximum width of the first auxiliary passage 210 . Since the chamber connection passage 330 includes the convex portion 335 , the flow rate of the reactant flowing into the chamber connection passage 330 is slowed at the convex portion 335 . A vortex is generated at the edge of the convex portion 335 due to the slowed flow rate, so that reactants can be mixed more efficiently.

In another embodiment, referring to FIG. 2 (b) and FIG. 4 (a), the inner wall of the first chamber in which the outlet 312 of the first chamber 310 and the chamber connection passage 330 are connected to each other. (R) may be configured to be a curved shape. Due to this configuration, pressure applied to the inner wall of the first chamber 310 can be reduced.

5 is an enlarged schematic view of a portion of a continuous flow reactor according to another embodiment of the present invention.

Referring to FIG. 5 , the vertex A provided at the front end of the direction changing element 313 may be positioned at the front end F of the inlet 311 of the first chamber 310 or downstream thereof. In (a1) of FIG. 5 (a) and (b1) of FIG. 5b, when the apex (A) of the direction changing element 313 is located at the most upstream position, the position of the inlet 311 of the first chamber 310 It schematically shows the state of the front end (F). When the vertex A of the direction changing element 313 is located at the front end F of the inlet 311 of the first chamber 310, reactants flowing into the first chamber 310 can be effectively separated.

In another embodiment, referring to FIGS. 2, 4(a), and 5a, at least one of the branched first auxiliary passage 210 and the second auxiliary passage 220 is a direction changing zone 420 It may be configured to be connected to each other in the coupling area 430 by changing the direction at less than 90 degrees. As shown in FIGS. 2, 4(a), and 5a, the direction change angle in the direction change area 420 of both the first auxiliary passage 210 and the second auxiliary passage 220 is 90 Less than degrees are presented. Due to this configuration, the reactants within the first chamber 310 as a whole are deflected less than 90 degrees each. In the process of mixing and reacting while flowing the reactants at a low speed, when the total direction change of the reactant passage 200 in the chamber is less than 90 degrees, the reactants can effectively pass through the chamber without causing problems such as generation of precipitates, for example can

In another embodiment, referring to FIGS. 3, 4(b), and 5b, at least one of the branched first auxiliary passage 210 and the second auxiliary passage 220 is a direction changing zone 420 It may be configured to be connected to each other in the coupling area 430 by changing the direction at least 90 degrees in. As shown in FIGS. 3, 4(b), and 5b, the direction change angle in the direction change area 420 of both the first auxiliary passage 210 and the second auxiliary passage 220 is 90 It has been suggested that more than In the process of mixing and reacting while flowing the reactants at high speed, the reactants may be effectively mixed by, for example, vortex generation by changing the direction of the reactant passage 200 by 90 degrees or more in the chamber. Even if the direction change of the reactant passage 200 is 90 degrees or more, since the reactants flow at a high speed, problems such as formation of precipitates may not occur.

In another embodiment, referring to FIGS. 2, 4(a), and 5a, the downstream side of the direction changing element 313 may be configured to have a convex surface in the downstream direction. Preferably, the convex surface is a curved surface. Similar to the above, in the process of mixing and reacting while flowing the reactants at a low speed, the reactants must pass through the chamber with a direction change of less than 90 degrees as a whole in the chamber so that problems such as generation of precipitates may not occur. . In addition, when the convex surface is curved, the flow of reactants may not be hindered.

In another embodiment, referring to FIGS. 3, 4(b), and 5b, the downstream surface of the direction changing element 313 may be configured to have a concave surface in the downstream direction. Preferably, the concave surface is a curved surface. Similar to the foregoing, in the process of mixing and reacting while flowing the reactants at high speed, the reactants can be effectively mixed by, for example, a vortex while going through a direction change of 90 degrees or more in the chamber. On the other hand, even if the direction change of the flow of the reactants is 90 degrees or more, problems such as formation of precipitates may not occur because the reactants flow at high speed. When the flow of reactants undergoes a direction change of 90 degrees or more, since the lower surface of the direction changing element 313 is convex and the coupling area may be too small, it may be configured as a concave surface to keep the width of the coupling area wide. In addition, when the concave surface is a curved surface, the flow of reactants may not be hindered.

In the present invention, for example, a flow rate of about 0.2 mL/min or less is referred to as a low rate, and a flow rate of, for example, about 5 mL/min or more is referred to as a high rate.

In another embodiment, referring to FIGS. 2 to 5 , the inner wall of the first chamber 310 in the direction changing area 420 may be configured to have a curved shape. Since the inner wall of the first chamber 310 is formed in a curved shape in the direction changing zone 420 , the pressure applied to the inner wall of the chamber by the reactant flow may be reduced.

Hereinafter, various embodiments of the present invention will be described.

(1) In a continuous flow reactor including a reactant passage, the reactant passage includes a first main passage, a second main passage, and a chamber, the first main passage and the second main passage in series along the reactant flow path. The chamber includes a first chamber and a second chamber disposed in series along the flow path of the reactant between the first main passage and the second main passage, the first chamber is an inlet through which the reactant is introduced, the reactant is It includes an outflow outlet and a direction change element for changing the direction of the reactant passage, and the first main passage is a first auxiliary passage and a second auxiliary passage by a direction change element in a branch area located adjacent to the inlet of the first chamber. The branched first auxiliary passage and the second auxiliary passage are each changed in direction in a direction changing zone located in the first chamber and connected to each other in a coupling zone located adjacent to the outlet of the first chamber. A continuous flow reactor, wherein the direction change angle of the reactant passage, which is changed as the first main passage diverges into the first auxiliary passage and the second auxiliary passage, is less than 90 degrees, and the direction change element is provided with a vertex at an upstream end.

(2) The continuous flow reactor, wherein the direction changing element has an internal angle of less than 90 degrees with respect to a vertex provided at an upstream tip.

(3) the first auxiliary passage is configured such that the width in the diverting section is greater than the width in the branching section, the continuous flow reactor

(4) The continuous flow reactor is configured so that the width of the first auxiliary passage is kept constant from the diverging section to immediately before the turning section.

(5) The continuous flow reactor, wherein the first auxiliary passage is configured such that the width gradually increases from the diverging section to the turning section.

(6) The first auxiliary passage is configured such that the width in the diverting zone is the largest among the width in the diverging zone, the width in the diverting zone, and the width in the coupling zone.

(7) The continuous flow reactor, wherein the first chamber and the second chamber are interconnected by a chamber connecting passage, and the minimum width of the first auxiliary passage is greater than or equal to the minimum width of the chamber connecting passage.

(8) The first chamber and the second chamber are interconnected by a chamber connecting passage, the chamber connecting passage includes a convex portion, and the maximum width of the convex portion is greater than the minimum width of the first auxiliary passage. A continuous flow reactor configured to be less than the maximum size width of the passageway.

(9) The first chamber and the second chamber are interconnected by a chamber connecting passage, and the inner wall of the first chamber where the outlet of the first chamber and the chamber connecting passage are connected to each other has a curved shape, a continuous flow reactor. .

(10) A continuous flow reactor in which the apex provided at the front end of the direction changing element is located at the front end of the first chamber inlet or downstream thereof.

(11) A continuous flow reactor, wherein at least one of the branched first auxiliary passage and the second auxiliary passage is connected to each other in a coupling section by changing direction at less than 90 degrees in the diverting section.

(12) A continuous flow reactor, wherein at least one of the branched first auxiliary passage and the second auxiliary passage is connected to each other in a coupling section by turning at least 90 degrees in the diverting section.

(13) A continuous flow reactor characterized in that the downstream face of the direction changing element has a curved convex surface in the downstream direction.

(14) A continuous flow reactor characterized in that the downstream face of the direction changing element has a curved concave surface in the downstream direction.

(15) A continuous flow reactor characterized in that the inner wall of the first chamber in the turning zone is curved.

100: continuous flow reactor, 200: reactant passage, 201: first main passage, 202: second main passage, 210: first auxiliary passage, 220: second auxiliary passage, 300: chamber, 310: first chamber, 320 : Second chamber, 330: chimber connection passage, 410: branch area, 420: direction change area, 430: coupling area

Claims (15)

In a continuous flow reactor comprising a reactant passage,
The reactant passage includes a first main passage, a second main passage, and a chamber,
The first main passage and the second main passage are arranged in series along the flow path of the reactants,
The chamber includes a first chamber and a second chamber disposed in series along the flow path of the reactant between the first main passage and the second main passage,
The first chamber includes an inlet through which the reactant flows, an outlet through which the reactant flows out, and a direction change element for changing the direction of the passage of the reactant,
The first main passage is branched into a first auxiliary passage and a second auxiliary passage by a direction changing element in a branching area located adjacent to the inlet of the first chamber,
The branched first auxiliary passage and the second auxiliary passage are each changed in direction in a direction changing zone located in the first chamber and connected to each other in a coupling zone located adjacent to the outlet of the first chamber;
The direction change angle of the reactant passage, which is changed as the first main passage diverges into the first auxiliary passage and the second auxiliary passage, is less than 90 degrees,
The direction change element is provided with a vertex at the front end of the upstream side,
The first auxiliary passage is configured to have the largest width in the direction change area among the width in the branch area, the width in the direction change area, and the width in the coupling area,
A continuous flow reactor, characterized in that the inner wall of the first chamber in the turning zone is curved. The method of claim 1,
The direction changing element is a continuous flow reactor in which an internal angle is less than 90 degrees with respect to a vertex provided at an upstream front end. delete The method of claim 1,
The continuous flow reactor of claim 1 , wherein the first auxiliary passageway is configured to have a width constant from the diverging section to just before the turning section. The method of claim 1,
wherein the first auxiliary passage is configured to gradually increase in width from the diverging section to the turning section. delete The method of claim 1,
The first chamber and the second chamber are interconnected by a chamber connection passage,
The continuous flow reactor is configured so that the smallest width of the first auxiliary passage is greater than or equal to the smallest width of the chamber connecting passage. The method of claim 1,
The first chamber and the second chamber are interconnected by a chamber connection passage,
The chamber connection passage includes a convex portion,
The continuous flow reactor is configured so that the maximum width of the convex portion is larger than the minimum width of the first auxiliary passage and smaller than the maximum width of the first auxiliary passage. The method of claim 1,
The first chamber and the second chamber are interconnected by a chamber connection passage,
A continuous flow reactor, characterized in that the inner wall of the first chamber, through which the outlet of the first chamber and the chamber connection passage are connected to each other, has a curved shape. The method of claim 1,
The apex provided at the front end of the direction change element is located at the front end of the first chamber inlet or downstream thereof, the continuous flow reactor. The method of claim 1,
At least one of the branched first auxiliary passage and the second auxiliary passage is connected to each other in the coupling section by changing the direction at less than 90 degrees in the direction changing area,
The continuous flow reactor, characterized in that the downstream side of the direction change element has a curved convex surface in the downstream direction. The method of claim 1,
At least one of the branched first auxiliary passage and the second auxiliary passage is connected to each other in the coupling section by changing the direction at 90 degrees or more in the direction changing section,
The continuous flow reactor, characterized in that the downstream side of the direction changing element has a curved concave surface in the downstream direction. delete delete delete

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