Reaction module and microchannel reactor

Abstract

The application relates to the technical field of chemical equipment, in particular to a reaction module and a micro-channel reactor. The reaction module comprises a shell and a screw rod accommodated in the shell and driven to rotate around an axis, wherein a micro-channel is formed between the surface of the screw rod and the inner wall of the shell. The reaction module has the advantages that the screw thread on the screw rod continuously applies a pushing force to the material in the micro-channel during rotation, thereby stably conveying the flow system from one end to the other end, reducing the flow resistance caused by high-viscosity fluid and inhibiting the pressure drop effect, enhancing the mixing and mass transfer efficiency of the material in the micro-channel under the action of rotary shearing, and improving the reaction rate of the material in the micro-channel; meanwhile, the rotary action of the screw rod can also apply disturbance and conveying action to the solid particles in the micro-channel, preventing the solid particles from gathering and depositing in the micro-channel, thereby reducing the risk of hole blockage and guaranteeing the normal use of the micro-channel reactor.

Description

Technical Field

[0001] This application relates to the field of chemical equipment technology, and in particular to a reaction module and a microchannel reactor. Background Technology

[0002] A microchannel reactor is a device that utilizes micrometer-level channels for chemical reactions. It boasts advantages such as small size, fast reaction speed, high efficiency, and low energy consumption, making it widely used in chemical, pharmaceutical, and environmental protection fields. In a microchannel reactor, reactants flow through microchannels, where they come into contact and react with each other.

[0003] In traditional technology, microchannel reactors are formed by creating channels on a planar substrate and then encapsulating them to form microchannels.

[0004] However, these microchannels are stationary, resulting in a significant pressure drop inside the reactor, which increases the difficulty of driving the internal flow system and affects the reaction rate within the microchannels. Furthermore, this structural design poses a risk of pore blockage when conducting chemical reactions involving solid phase formation, affecting the normal use of the microchannel reactor. Utility Model Content

[0005] Therefore, it is necessary to provide a reaction module and a microchannel reactor to improve the driving force of the internal flow system, suppress the pressure drop effect inside the reactor, increase the reaction rate, reduce the risk of pore blockage, and ensure the normal use of the microchannel reactor.

[0006] A first aspect of this application provides a reaction module comprising: a housing; and a screw housed within the housing, the screw being drivable to rotate about an axis; wherein a microchannel is formed between the surface of the screw and the inner wall of the housing.

[0007] The aforementioned reaction module, by incorporating a screw rotating around an axis, exerts a continuous driving force on the material within the microchannels during rotation. This causes the material to spiral forward axially, stably transporting the flow system from one end to the other. This not only reduces the flow resistance caused by high-viscosity fluids and suppresses pressure drop effects, but also enhances the mixing and mass transfer efficiency of the material within the microchannels under rotational shearing, thereby increasing the reaction rate. Furthermore, the rotation of the screw also disturbs and transports solid particles within the microchannels, preventing their aggregation and deposition, thus reducing the risk of clogging and ensuring the normal operation of the microchannel reactor.

[0008] In some embodiments, the housing and the screw are coaxially arranged, and the housing can be driven to rotate about the axis.

[0009] In some embodiments, the direction of rotation of the housing is opposite to the direction of rotation of the screw.

[0010] In some implementations, the inner wall of the housing is provided with threads.

[0011] In some implementations, the direction of the threads on the inner wall of the housing is the same as the direction of rotation of the housing.

[0012] In some embodiments, the direction of the thread on the screw is the same as the direction of rotation of the screw.

[0013] In some implementations, the thread pitch P of the screw is 1 mm to 20 mm.

[0014] In some implementations, the groove depth h of the thread on the screw is 0.01 mm to 10 mm.

[0015] In some implementations, the inclination angle α of the thread on the screw is 15° to 45°.

[0016] In some embodiments, the distance between the inner wall of the housing and the outer surface of the screw is 0.1 mm to 5 mm.

[0017] A second aspect of this application provides a microchannel reactor, the microchannel reactor comprising: at least one reaction module provided in the first aspect above; and a drive member, a screw connected to the at least one reaction module, for driving the screw to rotate about an axis.

[0018] The aforementioned microchannel reactor uses a drive unit to rotate a screw inside the reaction module around its axis. On one hand, the screw's threads exert a continuous pushing force on the material within the microchannel during rotation, causing the material to spiral forward axially. This stably transports the flow system from one end to the other, reducing flow resistance caused by high-viscosity fluids and suppressing pressure drop effects. Furthermore, the rotational shearing action enhances the mixing and mass transfer efficiency of the material within the microchannel, increasing the reaction rate. On the other hand, the screw's rotation also disturbs and transports solid particles within the microchannel, preventing their aggregation and deposition, thus reducing the risk of clogging and ensuring the normal operation of the microchannel reactor.

[0019] In some implementations, the microchannel reactor includes at least two reaction modules.

[0020] In some implementations, at least two reaction modules are connected in series, and the screws in two adjacent reaction modules are connected together.

[0021] In some implementations, the rotational speed of the drive component is 100 rpm / min to 12000 rpm / min.

[0022] In some embodiments, the drive element is also connected to the housing in at least one reaction module for driving the housing to rotate about an axis.

[0023] In some embodiments, the microchannel reactor is provided with at least one inlet and at least one outlet. Attached Figure Description

[0024] To better describe and illustrate the embodiments or examples provided in this application, reference may be made to one or more accompanying drawings. Additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the disclosed applications, the currently described embodiments or examples, or the best mode of conduct of these applications as currently understood. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0025] Figure 1 This is a three-dimensional structural diagram of a microchannel reactor in one embodiment of this application.

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of a microchannel reactor in one embodiment of this application.

[0027] Figure 3 This is a schematic diagram of the screw structure in the reaction module of one embodiment of this application.

[0028] Figure 4 This is a partial cross-sectional schematic diagram of the reaction module in one embodiment of this application.

[0029] Explanation of reference numerals in the attached figures

[0030] 1. Microchannel reactor; 10. Reaction module; 11. Shell; 110. Microchannel; 12. Screw; 121. Fixing groove; 13. Drive component; 14. End cap; 15. Fixing frame; 20. Connector; 30. Feed pipe; 31. Feed port; 40. Discharge pipe; 41. Discharge port; P, thread pitch; h, thread groove depth; w, thread groove width; α, thread inclination angle. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0033] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0037] Combination Figures 1 to 4 As shown, in a first aspect, this application provides a reaction module 10, which includes a housing 11 and a screw 12. The screw 12 is housed within the housing 11 and can be driven to rotate about an axis. A microchannel 110 is formed between the surface of the screw 12 and the inner wall of the housing 11.

[0038] The aforementioned reaction module 10, by incorporating a screw 12 rotating around an axis, exerts a continuous axial driving force on the material within the microchannel 110 during rotation. This causes the material to spiral forward axially within the microchannel 110, thereby stably transporting the flow system from one end to the other. This not only reduces the flow resistance caused by high-viscosity fluids and suppresses the pressure drop effect, but also enhances the mixing and mass transfer efficiency of the material within the microchannel 110 under the action of rotational shearing, thus increasing the reaction rate of the material within the microchannel 110. On the other hand, the rotation of the screw 12 also disturbs and transports the solid particles within the microchannel 110, preventing the solid particles from agglomerating and depositing within the microchannel 110, thereby reducing the risk of clogging and ensuring the normal operation of the microchannel reactor 1.

[0039] In some embodiments, the housing 11 is coaxially arranged with the screw 12, and the housing 11 can be driven to rotate about the axis. In this embodiment, by coaxially arranging the housing 11 with the screw 12 and driving the housing 11 to rotate about the axis, the disturbance and shearing effect on the material in the microchannel 110 is further enhanced, improving the mixing and mass transfer efficiency of the material in the microchannel 110, thereby increasing the reaction rate and reducing the risk of clogging.

[0040] In some embodiments, the rotation direction of the housing 11 is opposite to that of the screw 12. In this embodiment, by rotating the housing 11 and the screw 12 in opposite directions, the relative speed between them is significantly increased, further enhancing the disturbance and shearing effect on the material within the microchannel 110, improving the mixing uniformity and conveying efficiency of the material in the microchannel 110, and reducing the risk of clogging.

[0041] In some of these implementations, such as Figure 4As shown, the inner wall of the shell 11 is provided with threads. In this embodiment, by providing a threaded structure on the inner wall of the shell 11, the threads of the shell 11 and the threads of the screw 12 work together. On the one hand, the double-threaded structure forms a multi-point contact flow field disturbance zone, which helps to improve the overall flow velocity and shear force of the fluid, further improving the mixing and mass transfer efficiency of the material in the microchannel 110 and improving the reaction efficiency. On the other hand, the double-threaded structure can also effectively improve the smooth transport capacity of solid particles in the channel, suppress particle stagnation or accumulation, and further improve the anti-clogging performance of the microchannel reactor 1.

[0042] In some embodiments, the direction of the thread on the inner wall of the housing 11 is the same as the direction of rotation of the housing 11.

[0043] In some embodiments, the direction of the thread on the screw 12 is the same as the direction of rotation of the screw 12.

[0044] Furthermore, the direction of the threads on the inner wall of the housing 11 and the screw 12 is the same as their rotation direction. In this embodiment, the direction of the threads of the housing 11 and the screw 12 is consistent with their own rotation direction, thereby generating a synergistic axial conveying effect, forming a superimposed propulsion effect in the flow direction, further improving the material conveying speed and reaction efficiency.

[0045] It is understandable that the direction of the thread refers to the direction in which the thread can be screwed in (i.e., generate axial helical driving force) when it rotates. Therefore, when the rotation direction of the screw 12 or the housing 11 is the same as the direction of the thread, an axial helical driving force can be generated to realize the conveying of materials within the microchannel 110.

[0046] In some of these implementations, such as Figure 3 As shown, the thread pitch P of the screw 12 is 1 mm to 20 mm. For example, the thread pitch P of the screw 12 can be, but is not limited to, 1 mm, 5 mm, 10 mm, 15 mm, and 20 mm. Adjusting the thread pitch P of the screw 12 allows for flexible control of the distribution of the helical propulsion force per unit length, thereby affecting the flow rate and residence time of the material within the microchannel 110. Within the aforementioned thread pitch P range, a balanced control of flow rate and reaction efficiency can be achieved, meeting the reaction conditions with different reaction rates and mass transfer requirements.

[0047] In some of these implementations, such as Figure 3As shown, the groove depth h of the thread on the screw 12 is 0.01 mm to 10 mm. For example, the groove depth h of the thread on the screw 12 can be, but is not limited to, 0.01 mm, 0.1 mm, 1 mm, 5 mm, and 10 mm. The groove depth h of the thread on the screw 12 affects the material-carrying capacity and shear disturbance capability of the thread structure. Within the above-mentioned groove depth h range, it is possible to improve shear mixing efficiency and reduce the risk of particle deposition while ensuring flow driving force.

[0048] In some of these implementations, such as Figure 3 As shown, the groove width w of the thread on the screw 12 is 0.5 mm to 15 mm. Exemplarily, the groove width w of the thread on the screw 12 can be, but is not limited to, 0.5 mm, 1 mm, 5 mm, 10 mm, and 15 mm. The groove width w of the thread on the screw 12 affects the cross-sectional size of the channel through which the screw 12 propels the material and the local flow velocity distribution. Within the aforementioned groove width w range, it is possible to improve shear mixing efficiency and reduce the risk of particle deposition while ensuring flow propulsion.

[0049] In some of these implementations, such as Figure 3 As shown, the inclination angle α of the thread on the screw 12 is 15°~45°. Exemplarily, the inclination angle α of the thread on the screw 12 can be, but is not limited to, 15°, 20°, 25°, 30°, 35°, 40°, and 45°. The thread inclination angle α directly affects the magnitude of the screw propulsion force and the propulsion efficiency. Within the above-mentioned inclination angle α range, a balanced control of flow rate and reaction efficiency can be achieved to meet reaction conditions with different reaction rates and mass transfer requirements.

[0050] The screw 12 can be made of materials such as metal, quartz glass, or ceramic.

[0051] In some embodiments, the distance between the inner wall of the housing 11 and the outer surface of the screw 12 is 0.1 mm to 5 mm. Exemplarily, the distance between the inner wall of the housing 11 and the outer surface of the thread on the screw 12 can be, but is not limited to, 0.1 mm, 1 mm, 2 mm, 3 mm, 4 mm, or 5 mm.

[0052] In some embodiments, the reaction module 10 also includes a heating device for heating the material within the microchannel 110.

[0053] Specifically, the heating device includes a heating coil, which is fitted onto the outer wall of the housing 11.

[0054] In some embodiments, the distance between the heating coil and the outer wall of the housing 11 is 5 mm to 20 mm. Exemplarily, the distance between the heating coil and the outer wall of the housing 11 can be, but is not limited to, 5 mm, 10 mm, 15 mm, or 20 mm.

[0055] In some embodiments, the heating temperature of the heating coil is 20°C to 300°C. Exemplarily, the heating temperature of the heating coil can be, but is not limited to, 20°C, 50°C, 100°C, 150°C, 200°C, 250°C, and 300°C.

[0056] In some embodiments, the reaction module 10 further includes an end cap 14 and a mounting bracket 15. The end cap 14 is used to seal both ends of the housing 11 and the screw 12. The lower end of the end cap 14 is provided with a fixing hole, through which the mounting bracket 15 is connected to the end cap 14. The mounting bracket 15 is used to fix the reaction module 10. In the event of excessive vibration during the reaction rotation, the mounting bracket 15 plays a stabilizing role during operation.

[0057] The reaction module 10 can be made of transparent or non-transparent materials, such as metal, glass, quartz, ceramics, etc., and is suitable for various chemical reactions such as solid phase, liquid phase, and gas phase. It can carry out chemical reactions such as nitration, halogenation, and photocatalysis.

[0058] The size of the reaction module 10 can be designed according to the reaction flow rate (0~1000 mL / min).

[0059] A second aspect of this application provides a microchannel reactor 1, which includes at least one reaction module 10 provided in the first aspect and a drive member 13. The drive member 13 is connected to a screw 12 in at least one reaction module 10 and is used to drive the screw 12 to rotate about an axis.

[0060] The aforementioned microchannel reactor 1, driven by the drive component 13, rotates the screw 12 inside the reaction module 10 around its axis. On one hand, the threads on the screw 12 exert a continuous axial driving force on the material in the microchannel 110 during rotation, causing the material in the microchannel 110 to spiral forward in the axial direction, thereby stably transporting the flow system from one end to the other. This not only reduces the flow resistance caused by high-viscosity fluids and suppresses the pressure drop effect, but also enhances the mixing and mass transfer efficiency of the material in the microchannel 110 under the action of rotational shear, increasing the reaction rate of the material in the microchannel 110. On the other hand, the rotation of the screw 12 can also agitate and transport the solid particles in the microchannel 110, preventing the solid particles from agglomerating and depositing in the microchannel 110, thereby reducing the risk of clogging and ensuring the normal use of the microchannel reactor 1.

[0061] Specifically, the drive component 13 can be an engine.

[0062] In some embodiments, the microchannel reactor 1 includes at least two reaction modules 10. In this embodiment, by combining multiple reaction modules 10, multi-stage continuous reactions are achieved, thereby improving the structural flexibility and adaptability of the microchannel reactor 1, facilitating large-scale application, and making it suitable for various reaction types and process conditions.

[0063] Specifically, the reaction module 10 is connected via the connector 20.

[0064] In some specific embodiments, the screw 12 has fixing grooves 121 at both ends. The fixing grooves 121 are used to fix the screw 12 to the drive member 13 or the connector 20.

[0065] In some embodiments, at least two reaction modules 10 are connected in series, and the screws 12 in adjacent reaction modules 10 are connected together. In this embodiment, connecting the screws 12 in adjacent reaction modules 10 allows multiple screws 12 to rotate collaboratively via a drive unit 13, achieving synchronous conveying and propulsion of materials within each stage of the reaction chamber. This ensures consistent flow rate and continuous reaction throughout the system, avoiding flow rate mismatch or stagnation between different modules.

[0066] In some embodiments, the rotational speed of the drive member 13 is 100 rpm / min to 12000 rpm / min. Exemplarily, the rotational speed of the drive member 13 can be, but is not limited to, 100 rpm / min, 500 rpm / min, 1000 rpm / min, 5000 rpm / min, 10000 rpm / min, and 12000 rpm / min.

[0067] Specifically, the drive unit 13 adjusts the speed via a speed regulator.

[0068] In some embodiments, the drive 13 is also connected to the housing 11 in at least one reaction module 10 for driving the housing 11 to rotate about an axis.

[0069] In some embodiments, the microchannel reactor 1 is provided with at least one inlet 31 and at least one outlet 41. Specifically, the inlet 31 and the outlet 41 are disposed on the housing 11 of the reaction module 10.

[0070] Specifically, inlet 31 and outlet 41 introduce reactants or take samples through inlet pipe 30 and outlet pipe 40, respectively. The materials of inlet pipe 30 and outlet pipe 40 can be selected according to the reaction conditions, using materials with acid and alkali resistance to meet the needs of different chemical reaction systems.

[0071] In some embodiments, there are multiple feed inlets 31. Reactants in any state of matter, including gas, liquid, and solid, can enter the reaction chamber.

[0072] In some embodiments, there are multiple outlets 41. The outlets 41 are used for two purposes: (1) to transfer reactants to the next reaction module 10. Multiple outlets 41 can transfer reactants at a faster speed; (2) after a single reaction module 10 has completed the reaction, samples can be taken directly to facilitate the collection of data in gradient experiments. Any outlet 41 can be sealed with a rubber stopper. Samples can be collected directly with a syringe, and data collection of microchannels 110 at different reaction degrees can be performed.

[0073] In some embodiments, the drive member 13 drives the screw 12 to rotate about an axis. The thread direction of the screw 12 is set with the rotation direction so that the reactant material is pushed axially and flows from the end near the drive member 13 to the end away from the drive member 13. In this structure, the inlet 31 is located at the end near the drive member 13, and the outlet 41 is located at the end away from the drive member 13.

[0074] The microchannel reactor 1 provided in this application is a rotary microchannel reactor 1, which has a high degree of automation, fast reaction rate, continuous experimental capability, and good safety.

[0075] Furthermore, the rotary microchannel reactor 1 has advantages in the preparation of nanomaterials: the microchannel reactor 1 can perform instantaneous mixing, and the growth of precipitates, particles, or crystals can be controlled within a narrow distribution area. For example, the synthesis of micro / nanowires, particles, or crystals can ensure size concentration. The products will not clog in the rotary microchannel reactor 1, and products of different sizes can be obtained from the same reaction, solving the problem of easy clogging of microreactors. It can also be applied to the reaction of materials with high viscosity, and can carry out the reaction of materials with different viscosities. The viscosity range of the materials can be 0 mPa·s to 20000 mPa·s, preferably 2000 mPa·s to 8000 mPa·s.

[0076] The microchannel reactor 1 provided in this application has the following specific operating steps: The screw 12 is installed into the housing 11, and both ends are sealed and fixed with end caps 14. One end of the screw 12 is connected to the engine, and the other end is connected in series with other reaction modules 10 via connectors 20. After assembly, a chemical reaction can be carried out. The feed inlet 31 near the engine is placed into the reaction tank, the power is turned on, and the speed regulator is adjusted. Driven by the engine, the reaction liquid is propelled from one end to the other. After reacting in the chamber for a certain period of time, it flows out from the outlet 41, and the reaction products are collected in a container.

[0077] The present application will be further described below with reference to specific embodiments and comparative examples.

[0078] Example 1

[0079] In this embodiment, a microchannel reactor 1 is used to fabricate nanomaterials. The reaction time is 100s, and nanomaterials with a size D50 of 90~100 nm are generated. At this time, the microchannel reactor 1 can still operate normally and will not be blocked.

[0080] The structural parameters of the microchannel reactor 1 are as follows: the screw 12 has multiple threads, the thread pitch P is 10 mm, the groove depth h is 5 mm, the groove width w is 7 mm, the thread inclination angle α is 25°, the screw 12 is solid, the end of the screw 12 near the feed port 31 is connected to the motor, which drives the screw 12 to rotate, the minimum distance between the inner wall of the shell 11 and the surface of the screw 12 is 0.5 mm, and the rotation speed of the screw 1 is 2000 rpm / min.

[0081] Example 2

[0082] The microchannel reactor in this embodiment is the same as that in Embodiment 1. The nanomaterials in the microchannel reactor are replaced with a material with a viscosity of 5000 mPa·s. The microchannel reactor 1 can still operate normally and will not be blocked.

[0083] Comparative Example 1

[0084] Nanomaterials were fabricated using beaker containers with a reaction time of 4 hours. The resulting nanomaterials had a size distribution of 2 μm to 100 μm and a diameter of 30 nm to 100 nm.

[0085] Comparative Example 2

[0086] Nanomaterials are fabricated using a microchannel reactor with a planar substrate, where the nanomaterials generated during the reaction process block the microchannels.

[0087] Comparing Examples 1-2 and Comparative Example 1, it can be seen that, compared with the traditional beaker reaction method, the microchannel reactor of this application can significantly shorten the reaction time, improve production efficiency, and control the particle size of the product, resulting in nanomaterials with more uniform and narrower size distribution.

[0088] Comparing Examples 1-2 and Comparative Example 2, it can be seen that, compared with traditional planar substrate microchannel reactors, the screw-type microchannel reactor used in this application has excellent anti-clogging performance, ensuring continuous and stable operation of the reaction.

[0089] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0090] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A reaction module, characterized in that, include: case; as well as A screw, housed within the housing, is capable of being driven to rotate about an axis; A microchannel is formed between the surface of the screw and the inner wall of the housing.

2. The reaction module according to claim 1, characterized in that, The housing is coaxially arranged with the screw, and the housing can be driven to rotate about the axis.

3. The reaction module according to claim 2, characterized in that, The rotation direction of the housing is opposite to the rotation direction of the screw.

4. The reaction module according to claim 1, characterized in that, The inner wall of the housing is threaded.

5. The reaction module according to claim 4, characterized in that, At least one of the following conditions must be met: (1) The direction of the thread on the inner wall of the housing is the same as the direction of rotation of the housing; (2) The direction of the thread on the screw is the same as the direction of rotation of the screw.

6. The reaction module according to any one of claims 1 to 5, characterized in that, At least one of the following conditions must be met: (1) The thread pitch P of the screw is 1 mm to 20 mm; (2) The groove depth h of the thread on the screw is 0.01 mm to 10 mm; (3) The inclination angle α of the thread on the screw is 15°~45°; (4) The distance between the inner wall of the housing and the outer surface of the screw is 0.1 mm to 5 mm.

7. A microchannel reactor, characterized in that, include: At least one reaction module as described in any one of claims 1 to 6; as well as A drive element, connected to at least one screw in the reaction module, for driving the screw to rotate about an axis.

8. The microchannel reactor according to claim 7, characterized in that, The microchannel reactor comprises at least two reaction modules.

9. The microchannel reactor according to claim 8, characterized in that, At least two of the reaction modules are connected in series, and the screws in two adjacent reaction modules are connected together.

10. The microchannel reactor according to any one of claims 7 to 9, characterized in that, At least one of the following conditions must be met: (1) The rotational speed of the drive component is 100 rpm / min to 12000 rpm / min; (2) The driving component is also connected to the housing in at least one of the reaction modules for driving the housing to rotate about an axis; (3) The microchannel reactor is provided with at least one inlet and at least one outlet.

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