Protein synthesis bioreactor and reaction assembly
By designing an S-shaped reaction tube and a passive stirring mechanism, the protein synthesis bioreactor solves the problem of short gas residence time under traditional aeration methods, achieving efficient conversion of biomass pyrolysis gas and enhancing protein synthesis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING UNIV OF CHEM TECH
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional aeration methods in existing bioreactors result in short gas residence times, which limits the conversion rate of biomass pyrolysis gas.
Design a protein synthesis bioreactor containing an S-shaped reaction tube. By extending the gas-liquid contact path, the product sedimentation is promoted by gravity. A self-driven gas circulation and a passive stirring mechanism are used to extend the gas residence time and increase the contact area with microorganisms.
It improves the conversion rate of biomass pyrolysis gas and the efficiency of protein synthesis, reduces power consumption, and achieves efficient gas conversion and gradient purification of products.
Smart Images
Figure CN224186148U_ABST
Abstract
Description
Protein synthesis bioreactor and reaction components Technical Field
[0001] This utility model belongs to the field of bioengineering equipment, specifically relating to a protein synthesis bioreactor and reaction components. Background Technology
[0002] Currently, in the technology of synthesizing microbial protein using biomass pyrolysis gas (mainly containing CO, H2, CO2, etc.), the reactor design is mostly based on traditional fermenters or fixed-bed reactors. However, the current reactors have the following key problems: traditional aeration methods (such as straight pipe aeration) result in short gas residence time, which limits the conversion rate of biomass pyrolysis gas.
[0003] Therefore, for those skilled in the art, improving the structure of existing reactors to extend gas residence time and increase the conversion rate of biomass pyrolysis gas is of practical significance. Summary of the Invention
[0004] In view of the shortcomings of the existing technology, one of the objectives of this utility model is to provide a protein synthesis bioreactor to extend the gas residence time and improve the conversion rate of biomass pyrolysis gas.
[0005] The second objective of this invention is to provide a reaction assembly comprising the aforementioned protein synthesis bioreactor.
[0006] To address the aforementioned issues, this invention provides a protein synthesis bioreactor, comprising an S-shaped reaction tube. The S-shaped reaction tube has a biomass pyrolysis gas inlet and an exhaust outlet at its two ends, respectively. The biomass pyrolysis gas inlet is located at the lower end of the reaction tube and is connected to an aeration disc. The exhaust outlet is located at the upper end of the reaction tube. The reaction tube also has a bacterial liquid inlet, and the S-shaped reaction tube forms a continuous baffled channel.
[0007] As a further improvement to the aforementioned protein synthesis bioreactor, the S-shaped reaction tube includes a first straight pipe section, a first U-shaped bend, a second straight pipe section, a second U-shaped bend, and a third straight pipe section, which are connected sequentially. The biomass pyrolysis gas inlet is located at the lower end of the first straight pipe section, the aeration disc is integrated into the lower part of the first straight pipe section and is located near the biomass pyrolysis gas inlet, and the exhaust port is located at the upper end of the third straight pipe section.
[0008] As a further improvement to the aforementioned protein synthesis bioreactor, the number of bacterial inlets is two, with the two bacterial inlets located at the upper and lower parts of the first straight pipe section, respectively, and the two bacterial inlets located on both sides of the axis of the first straight pipe section.
[0009] As a further improvement to the aforementioned protein synthesis bioreactor, the sidewall of the S-shaped reaction tube is provided with an embedded sampling port, and the sampling port is embedded with a biocompatible membrane.
[0010] As a further improvement to the aforementioned protein synthesis bioreactor, the number of sampling ports is multiple, and the multiple sampling ports are distributed at different positions in the S-shaped reaction tube.
[0011] As a further improvement to the aforementioned protein synthesis bioreactor, a passive stirring mechanism is provided inside the S-shaped reaction tube. The passive stirring mechanism includes a stirring paddle that is rotatably connected to the tube wall. The rotation axis of the stirring paddle is perpendicular to the axis of the S-shaped reaction tube, and its stirring blades have an asymmetric airfoil structure.
[0012] As a further improvement to the above-mentioned protein synthesis bioreactor, the impeller includes a stirring shaft and a plurality of stirring blades disposed on the stirring shaft, the plurality of stirring blades being arranged at intervals along the axial direction of the stirring shaft; and / or, the number of the impellers is multiple, the plurality of impellers being arranged at intervals along the axial direction of the S-shaped reaction tube.
[0013] As a further improvement to the aforementioned protein synthesis bioreactor, the aeration disc includes an annular air pipe on the outer side and multiple radially distributed air distribution branches on the inner side. One end of the multiple air distribution branches is connected to the annular air pipe, and the other end of the multiple air distribution branches is connected to each other at the center of the aeration disc. Several aeration holes are provided on both the annular air pipe and the air distribution branches.
[0014] As a further improvement to the aforementioned protein synthesis bioreactor, the annular gas pipe has an air inlet on its side wall, which is connected to the biomass pyrolysis gas inlet.
[0015] As a further improvement to the aforementioned protein synthesis bioreactor, a connecting tube is also included, wherein the middle portions of the first U-shaped bend and the middle portions of the second U-shaped bend are connected through the connecting tube.
[0016] This invention relates to a protein synthesis bioreactor, comprising an S-shaped reaction tube forming a continuous baffled channel. The S-shaped tube design enhances reaction efficiency by extending the gas-liquid contact path, while simultaneously utilizing gravity to promote product sedimentation. The bottom-in, top-out gas flow direction matches the density characteristics of the pyrolysis gas, achieving self-driven gas circulation. That is, bottom-inlet and top-outlet gas form natural convection, reducing power consumption. Compared to existing technologies, this invention can extend the gas residence time, increase the contact area with microorganisms, and improve the conversion rate of biomass pyrolysis gas, thereby increasing the yield and speed of protein synthesis.
[0017] On the other hand, this invention provides a protein synthesis bioreactor assembly, comprising multiple protein synthesis bioreactors as described in any of the above embodiments, wherein the multiple protein synthesis bioreactors are connected in series to form a cascade system. The multiple protein synthesis bioreactors can be connected via flanges, and the protein synthesis bioreactors adopt a modular design, allowing for series expansion and facilitating capacity expansion to adapt to different capacity requirements. The cascade system enables gradient purification of the product.
[0018] Since the protein synthesis bioreactor assembly described above is equipped with the protein synthesis bioreactor described above, the protein synthesis bioreactor assembly described above has all the technical effects of the protein synthesis bioreactor described above, which will not be repeated here. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Figure 1 is a schematic diagram of the structure of a protein synthesis bioreactor according to one embodiment of the present invention.
[0021] Figure 2 is a schematic diagram of the structure of the stirring blade of the passive stirring mechanism according to an embodiment of the present invention.
[0022] Figure 3 is a schematic diagram of the aeration disc according to one embodiment of the present invention.
[0023] In the attached image:
[0024] 1- Biomass pyrolysis gas inlet; 2- Exhaust outlet; 3- Aeration disc
[0025] 4-Bacterial liquid inlet; 5-First straight pipe section; 6-First U-shaped bend.
[0026] 7-Second straight pipe section; 8-Second U-bend; 9-Third straight pipe section
[0027] 10-Sampling port; 11-Passive stirring mechanism; 31-Annular gas pipe
[0028] 32-Air distribution branch pipe; 33-Aeration hole; 12-Connecting pipe Detailed Implementation
[0029] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0030] Please refer to the accompanying drawings. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed herein.
[0031] In the description of this utility model, it should be noted that the orientations or positional relationships indicated by the terms used are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model. In the description of this utility model, it should be noted that unless otherwise expressly specified and limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] To facilitate the description of orientational relationships, this paper stipulates that the spatial orientation of the protein synthesis bioreactor in the experimental system refers to the standard placement shown in Figure 1, that is, the upper, lower, left, and right orientations of the actual device are consistent with the corresponding orientations in the schematic diagram.
[0033] Please refer to Figure 1. An embodiment of this utility model provides a protein synthesis bioreactor, which includes an S-shaped reaction tube. The two ends of the S-shaped reaction tube are respectively provided with a biomass pyrolysis gas inlet 1 and an exhaust port 2. The biomass pyrolysis gas inlet 1 is located at the lower end of the reaction tube and is connected to an aeration disc 3. The exhaust port 2 is located at the upper end of the reaction tube. The reaction tube is provided with a bacterial liquid inlet 4. The S-shaped reaction tube forms a continuous baffle channel.
[0034] This invention relates to a protein synthesis bioreactor, comprising an S-shaped reaction tube forming a continuous baffled channel. The S-shaped tube design enhances reaction efficiency by extending the gas-liquid contact path, while simultaneously utilizing gravity to promote product sedimentation. The bottom-in, top-out gas flow direction matches the density characteristics of the pyrolysis gas, achieving self-driven gas circulation. That is, bottom-inlet and top-outlet gas form natural convection, reducing power consumption. Compared to existing technologies, this invention can extend the gas residence time, increase the contact area with microorganisms, and improve the conversion rate of biomass pyrolysis gas, thereby increasing the yield and speed of protein synthesis.
[0035] In some embodiments of this utility model, as shown in Figure 1, the S-shaped reaction tube includes a first straight pipe section 5, a first U-shaped bend 6, a second straight pipe section 7, a second U-shaped bend 8, and a third straight pipe section 9. The first straight pipe section 5, the first U-shaped bend 6, the second straight pipe section 7, the second U-shaped bend 8, and the third straight pipe section 9 are connected sequentially. The biomass pyrolysis gas inlet 1 is located at the lower end of the first straight pipe section 5. The aeration disc 3 is integrated into the lower part of the first straight pipe section 5 and is positioned near the biomass pyrolysis gas inlet 1. The exhaust port 2 is located at the upper end of the third straight pipe section 9. The opening of the first U-shaped bend 6 faces downwards, and the opening of the second U-shaped bend 8 faces upwards. The first straight pipe section 5, the first U-shaped bend 6, the second straight pipe section 7, the second U-shaped bend 8, and the third straight pipe section 9 can be welded together. In this embodiment, the segmented structure consisting of a first straight pipe section 5, a first U-shaped bend 6, a second straight pipe section 7, a second U-shaped bend 8, and a third straight pipe section 9 facilitates the functional division of the reaction zone, such as gas-liquid mixing in the front section, bioconversion in the middle section, and product separation in the rear section. The design of the first U-shaped bend 6 and the second U-shaped bend 8 can create local turbulence and enhance the mass transfer efficiency. The top placement of the exhaust port 2 can effectively prevent liquid entrainment.
[0036] In some embodiments of this utility model, the ratio of the radius of curvature of the first U-shaped bend 6 and the second U-shaped bend 8 to the diameter of the S-shaped reaction tube is 1.2:1 to 2:1. This helps to ensure that the critical Reynolds number for the transition from laminar to turbulent flow is maintained at the bend, thereby enhancing the mass transfer efficiency; at the same time, it optimizes the distribution of fluid shear force, prevents bacteria from accumulating at the bend, and reduces the pressure loss rate of gas passing through the bend.
[0037] In some embodiments of this invention, there are two bacterial inlets 4, located at the upper and lower parts of the first straight pipe section 5, respectively, and on opposite sides of the axis of the first straight pipe section 5. This stratified feeding design meets the nutritional needs of different metabolic stages, while the dual-feeding system creates a swirling mixing effect, preventing bacterial deposition.
[0038] In some embodiments of this invention, the sidewall of the S-shaped reaction tube is provided with an embedded sampling port 10, and the sampling port 10 is embedded with a biocompatible diaphragm. The embedded design avoids the formation of flow dead zones, the biocompatible diaphragm ensures aseptic sampling and prevents contamination by other microorganisms, and the in-situ sampling design solves the problem of data lag in the current field of protein synthesis, thereby enabling real-time monitoring of the concentration of metabolites at each reaction stage.
[0039] In some embodiments of this invention, there are multiple sampling ports 10, distributed at different locations within the S-shaped reaction tube. In this embodiment, monitoring of key nodes can establish a reaction kinetic model, and comparison of multi-point data reveals changes in metabolic pathways, providing a feedback signal source for process control. In the embodiment shown in Figure 1, there are three sampling ports 10: one in the middle of the first straight tube segment 5, one in the middle of the second straight tube segment 7, and one in the middle of the third straight tube segment 9. This layered layout of sampling ports 10 allows for full-process monitoring of biofilm growth, and multi-point sampling constructs a three-dimensional concentration field model to guide process optimization. The sampling ports 10 extend into the tube lumen to a depth of 1 / 5 to 1 / 3 of the tube diameter, ensuring the collection of representative samples. The sampling ports 10 in the middle of the first straight tube segment 5, the second straight tube segment 7, and the third straight tube segment 9 are located at the same horizontal line.
[0040] In some embodiments of this invention, a passive stirring mechanism 11 is provided inside the S-shaped reaction tube. The passive stirring mechanism 11 includes a stirring paddle rotatably connected to the tube wall. The axis of rotation of the stirring paddle is perpendicular to the axis of the S-shaped reaction tube, and its stirring blades have an asymmetric airfoil structure. Compared with the prior art, this embodiment, by employing a passive stirring mechanism 11, uses fluid-driven stirring, which can save energy and reduce consumption. At the same time, the self-cleaning design of the stirring paddle reduces the deposition of tar and particulate matter in the biomass pyrolysis gas inside the pipe. Preferably, the passive stirring mechanism 11 also includes a power component located on the outer wall of the S-shaped reaction tube. This power component is drively connected to the stirring paddle located on the inner side of the S-shaped reaction tube. With this configuration, the stirring paddle can be driven by fluid or obtain power from the power component, meeting the needs of more scenarios. The power component can be an electric motor or a mechanical motor.
[0041] In some embodiments of this invention, the stirring paddle includes a stirring shaft and multiple stirring blades disposed on the stirring shaft, with the multiple stirring blades arranged at intervals along the axial direction of the stirring shaft. As shown in Figure 2, the stirring blades can be four-bladed paddles. The stirring paddles can periodically scrape the wall of the S-shaped reaction tube, forming a self-cleaning effect and reducing the deposition of tar and particulate matter in the biomass pyrolysis gas inside the pipe. Specifically, the four-bladed paddles are optionally made of PTFE material, evenly distributed circumferentially, with adjacent blades having an included angle of 90°.
[0042] In some embodiments of this utility model, as shown in FIG3, the aeration disc 3 includes an annular air pipe 31 located on the outer side and a plurality of radially distributed air distribution branches 32 located on the inner side. One end of the plurality of air distribution branches 32 is connected to the annular air pipe 31, and the other end of the plurality of air distribution branches 32 is connected to each other at the center of the aeration disc 3. A plurality of aeration holes 33 are evenly distributed on the annular air pipe 31 and the air distribution branches 32. In this embodiment, the aeration disc 3 is disc-shaped, the axis of the air distribution branches 32 coincides with the radius of the disc, and the radially distributed air distribution branches 32 and the annular air pipe 31 form a multi-level pressure stabilizing structure. The design of the radially distributed air distribution branches 32 being centrally connected establishes a pressure self-balancing mechanism. The aeration holes 33 are circular and evenly distributed on the aeration disc 3, and the evenly distributed aeration holes 33 generate bubbles with a particle size gradient.
[0043] In some embodiments of this utility model, the side wall of the annular air pipe 31 is provided with an air inlet, which is connected to the biomass pyrolysis gas inlet 1. In this embodiment, by adopting the side wall air inlet design, a tangential airflow is formed, which helps to reduce the gas velocity, prolong the gas-liquid contact time, and the circumferential air inlet forms a swirling effect, increases the turbulence intensity, reduces the dead zone area at the edge of the aeration disc 3, and promotes secondary bubble breakage.
[0044] In some embodiments of this utility model, the ratio of the diameter of the aeration disc 3 to the inner diameter of the S-shaped reaction tube is 0.91 to 0.95, wherein the diameter of the aeration holes 33 corresponds to 40% to 60% of the diameter of the air distribution branch pipe 32, and the total open area of the aeration holes 33 accounts for 50% to 80% of the surface area of the aeration disc 3; the inner diameter ratio configuration enables the aeration disc 3 to form a circumferential sealing band of 0.5-2 mm at its edge. The diameter ratio of 0.91 to 0.95 ensures edge airtightness, the 40%-60% hole diameter ratio balances air pressure loss and bubble breaking efficiency, and the 50%-80% open area increases the gas-liquid mass transfer coefficient by 2.3 to 3.1 times.
[0045] In some embodiments of this invention, as shown in Figure 1, there are five agitators. The axial spacing between adjacent agitators is 1 / 2 to 2 / 3 of the length of the straight pipe section, and the gap between the outer edge of the agitator blade and the pipe wall is 0.5 to 2 mm. The 0.5-2 mm gap generates a strong shear flow field, inhibiting bacterial cell adhesion; the 1 / 2 to 2 / 3 spacing arrangement optimizes the mixing efficiency index; and the five-stage agitation improves the axial dispersion coefficient. Specifically, as shown in Figure 1, all five agitators are arranged in straight pipe sections. One agitator is arranged at the upper and lower parts of the first straight pipe section 5, one agitator is arranged at the upper and lower parts of the second straight pipe section 7, and one agitator is arranged at the lower part of the third straight pipe section 9. The agitators located at the lower part of the straight pipe section are located at 1 / 4 to 1 / 3 of the pipe length from the lower end face of the straight pipe section, and the center line of the agitator shaft is perpendicular to the pipe section axis. The agitators located at the upper part of the straight pipe section are located at 1 / 4 to 1 / 3 of the pipe length from the upper end face of the straight pipe section, and the center line of the agitator shaft is perpendicular to the pipe section axis. The axial spacing between the agitators at the upper and lower parts of the first straight pipe section 5 is 1 / 2 to 2 / 3 of the length of the straight pipe section, and the axial spacing between the agitators at the upper and lower parts of the second straight pipe section 7 is 1 / 2 to 2 / 3 of the length of the straight pipe section. The gap between the outer edge of the agitator blade and the pipe wall is 0.5 to 2 mm. In addition, specifically optionally, the three agitators located at the lower part of the straight pipe section are on the same horizontal line, and the two agitators located at the upper part of the straight pipe section are on the same horizontal line.
[0046] In some embodiments of this utility model, the height-to-diameter ratio of the first straight pipe section 5, the second straight pipe section 7, and the third straight pipe section 9 is 3:1 to 8:1. The height-to-diameter ratio of 3:1 to 8:1 ensures the maximum effective surface area per unit volume and optimizes the oxygen transfer efficiency in the vertical direction.
[0047] In some embodiments of this utility model, as shown in Figure 1, the first straight pipe section 5 is provided with, from bottom to top, a biomass pyrolysis gas inlet 1, an aeration disc 3, a stirring paddle, a bacterial liquid inlet 4, a sampling port 10, another stirring paddle, and another bacterial liquid inlet 4. The second straight pipe section 7 is provided with, from bottom to top, a stirring paddle, a sampling port 10, and another stirring paddle. The third straight pipe section 9 is provided with, from bottom to top, a stirring paddle, a sampling port 10, and an exhaust port. The three stirring paddles located at the lower part of the straight pipe section are on the same horizontal line, the two stirring paddles located at the upper part of the straight pipe section are on the same horizontal line, and the three sampling ports 10 located in the middle of the straight pipe section are on the same horizontal line.
[0048] In some embodiments of this utility model, as shown in FIG1, a connecting pipe 12 is also included. The middle part of the first U-shaped bend 6 and the middle part of the second U-shaped bend 8 are connected through the connecting pipe 12. The connecting pipe can balance the pressure difference between the U-shaped bends, promote gas-liquid exchange and mass transfer, prevent bubbles from accumulating at the bends, maintain flow stability, and is especially suitable for high gas velocity conditions.
[0049] In summary, the protein synthesis bioreactor of this invention includes an S-shaped reaction tube, which forms a continuous baffled channel. The S-shaped tube design improves reaction efficiency by extending the gas-liquid contact path, while simultaneously utilizing gravity to promote product sedimentation. The bottom-in, top-out gas flow direction matches the density characteristics of the pyrolysis gas, achieving self-driven gas circulation. Compared with the prior art, this invention can extend the gas residence time and improve the conversion rate of biomass pyrolysis gas.
[0050] An embodiment of this utility model also provides a protein synthesis bioreactor assembly, comprising multiple protein synthesis bioreactors as described in any of the above embodiments, wherein the multiple protein synthesis bioreactors are connected in series to form a cascade system. The multiple protein synthesis bioreactors can be connected via flanges. The protein synthesis bioreactors adopt a modular design, allowing for series expansion to facilitate capacity expansion and adapt to different capacity requirements. The cascade system enables gradient purification of the product.
[0051] Since the protein synthesis bioreactor assembly described above is equipped with the protein synthesis bioreactor described above, the protein synthesis bioreactor assembly described above has all the technical effects of the protein synthesis bioreactor described above, which will not be repeated here.
[0052] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A protein synthesis bioreactor, characterized in that: The system includes an S-shaped reaction tube, with a biomass pyrolysis gas inlet (1) and an exhaust outlet (2) at each end. The biomass pyrolysis gas inlet (1) is located at the lower end of the reaction tube and is connected to an aeration disc (3). The exhaust outlet (2) is located at the upper end of the reaction tube. The reaction tube is equipped with a bacterial liquid inlet (4), and the S-shaped reaction tube forms a continuous baffle channel.
2. The protein synthesis bioreactor according to claim 1, characterized in that: The S-shaped reaction tube includes a first straight pipe section (5), a first U-shaped bend (6), a second straight pipe section (7), a second U-shaped bend (8), and a third straight pipe section (9). The first straight pipe section (5), the first U-shaped bend (6), the second straight pipe section (7), the second U-shaped bend (8), and the third straight pipe section (9) are connected in sequence. The biomass pyrolysis gas inlet (1) is located at the lower end of the first straight pipe section (5). The aeration disc (3) is integrated into the lower part of the first straight pipe section (5) and is located near the biomass pyrolysis gas inlet (1). The exhaust port (2) is located at the upper end of the third straight pipe section (9).
3. The protein synthesis bioreactor according to claim 2, characterized in that: The number of bacterial liquid inlets (4) is two. The two bacterial liquid inlets (4) are respectively located at the upper and lower parts of the first straight pipe section (5), and the two bacterial liquid inlets (4) are located on both sides of the axis of the first straight pipe section (5).
4. The protein synthesis bioreactor according to claim 1, characterized in that: The sidewall of the S-shaped reaction tube is provided with an embedded sampling port (10), and the sampling port (10) is embedded with a biocompatible membrane.
5. The protein synthesis bioreactor according to claim 4, characterized in that: The number of sampling ports (10) is multiple, and the multiple sampling ports (10) are distributed at different positions of the S-shaped reaction tube.
6. The protein synthesis bioreactor according to claim 1, characterized in that: A passive stirring mechanism (11) is provided inside the S-shaped reaction tube. The passive stirring mechanism (11) includes a stirring paddle that is rotatably connected to the tube wall. The rotation axis of the stirring paddle is perpendicular to the axis of the S-shaped reaction tube, and its stirring blades have an asymmetric airfoil structure.
7. The protein synthesis bioreactor according to claim 6, characterized in that: The stirring paddle includes a stirring shaft and a plurality of stirring blades disposed on the stirring shaft, the plurality of stirring blades being arranged at intervals along the axial direction of the stirring shaft; and / or, the number of stirring paddles is plurality, the plurality of stirring paddles being arranged at intervals along the axial direction of the S-shaped reaction tube.
8. The protein synthesis bioreactor according to any one of claims 1-7, characterized in that: The aeration disc (3) includes an annular air pipe (31) on the outer side and a plurality of radially distributed air distribution branches (32) on the inner side. One end of the plurality of air distribution branches (32) is connected to the annular air pipe (31), and the other end of the plurality of air distribution branches (32) is connected to each other at the center of the aeration disc (3). A plurality of aeration holes (33) are evenly distributed on the annular air pipe (31) and the air distribution branches (32). An air inlet is provided on the side wall of the annular air pipe (31), and the air inlet is connected to the biomass pyrolysis gas inlet (1).
9. The protein synthesis bioreactor according to claim 2, characterized in that: It also includes a connecting pipe (12), through which the middle part of the first U-shaped bend (6) and the middle part of the second U-shaped bend (8) are connected.
10. A protein synthesis bioreactor assembly, characterized in that: It includes multiple protein synthesis bioreactors as described in any one of claims 1-9, wherein the multiple protein synthesis bioreactors are connected in series to form a cascade system.