Parallel type bidirectional liquid feed reaction system for producing butanol and octanol

Abstract

The application discloses a parallel type bidirectional liquid feeding reaction system for producing butyl octanol, which comprises a reaction kettle supported and placed by an external support, bidirectional liquid feeding pipes, a gas inlet pipe, a premixing cavity, an emulsification mechanism, a catalyst adding mechanism and a buffer mechanism. Liquid propylene enters the premixing cavity through the liquid feeding pipe, is premixed with CO gas discharged from the gas inlet pipe, is refined into micron-level gas-liquid emulsions through the emulsification mechanism, the gas-liquid contact area is significantly increased, the reaction efficiency is improved, the catalyst is accurately metered through a storage tank and an auxiliary mechanism, the reaction stability is ensured, the buffer mechanism in the liquid feeding pipe effectively slows down the liquid impact force and filters impurities, the cleaning mechanism can scrape and clean the impurities on the surface of the filter plate, the filtering effect is ensured, the liquid propylene and the CO gas are efficiently premixed through optimization of the feeding mode and the mixing structure, and the reaction efficiency of butyl octanol production and the consistency of product quality are significantly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of producing butanol, and particularly to a parallel type bidirectional liquid feeding reaction system for producing butanol. BACKGROUND

[0002] Butanol is an important organic chemical raw material, which is widely used in the fields of synthetic resin, plasticizer, perfume, surfactant, etc. The traditional butanol production technology mainly includes fermentation method, acetaldehyde condensation method, Ziegler method and propylene carbonyl synthesis method. Among them, the propylene carbonyl synthesis method becomes the most popular production process due to its high efficiency and economy. In recent years, with the promotion of green chemistry and sustainable development concept, the butanol production technology has made breakthroughs. Through micro-interface strengthening technology, the contact interface scale of gas-liquid, gas-liquid-solid in chemical production is reduced from millimeter to centimeter to micron to nanometer, which significantly improves the reaction efficiency and reduces energy consumption.

[0003] The existing Chinese patent with publication number CN115430368A includes a carbonylation slurry gas-liquid mixer for fully breaking and mixing liquid phase feed and gas phase feed to form a gas-liquid emulsion; increasing the gas-liquid contact area, increasing the phase interface area and mass transfer rate of the reaction, and improving the material conversion rate and the processing capacity of the reaction kettle; a carbonyl synthesis unit connected with the carbonylation slurry gas-liquid mixer to perform carbonyl synthesis on the output material of the carbonylation slurry gas-liquid mixer to form butyraldehyde.

[0004] The above device, when in use, sets a carbonylation slurry gas-liquid mixer at the raw material inlet of the carbonyl synthesis reactor, first uses a gas-liquid external mixing method to realize industrial application of micro-mixing technology, but in actual use, liquid propylene usually enters from the middle of the reaction kettle, CO gas enters from the bottom of the reaction kettle to react in the reaction kettle, which easily disturbs the flow field in the reaction kettle, leading to uneven mixing of liquid and gas, affecting the stability and efficiency of the reaction, so it is difficult to pre-mix liquid propylene and CO gas internally.

[0005] Therefore, we propose a parallel type bidirectional liquid feeding reaction system for producing butanol. SUMMARY

[0006] The present application aims to provide a parallel type bidirectional liquid feeding reaction system for producing butanol, which has the advantage of pre-mixing liquid propylene and CO gas internally, and solves the problems in the background art.

[0007] In order to achieve the above object, the present application provides the following technical scheme: a parallel type bidirectional liquid feed production butanol reaction system, comprising a reaction kettle supported and placed by an external support, both sides of the reaction kettle are penetrated and fixedly connected with liquid inlet pipes for bidirectional feeding of liquid propylene, one end of the liquid inlet pipes adjacent to each other is penetrated and fixedly connected with a circular block, and the inner wall of the circular block is provided with a premixing cavity in communication with the liquid inlet pipe, both sides of the circular block are fixedly connected with cylindrical rods supporting the circular block at symmetrical positions, the end portions of the two cylindrical rods are penetrated to the top end of the reaction kettle and are fixedly connected, the bottom end of the reaction kettle is penetrated and fixedly connected with a gas inlet pipe for discharging CO gas to the inner wall of the premixing cavity for premixing with the liquid propylene, and the end portion of the gas inlet pipe is penetrated to the inside of the premixing cavity and is fixedly connected, and the reaction kettle is provided with an emulsifying mechanism for crushing and mixing the premixed liquid propylene and CO gas in the premixing cavity.

[0008] Preferably, the emulsifying mechanism comprises a rotating shaft penetrating and fixedly connected to the end portion of the reaction kettle and rotating driven by a power mechanism, the bottom end of the rotating shaft penetrates into the premixing cavity and is fixedly connected with an emulsifying head for crushing and mixing the liquid propylene and CO gas, and the circular block is penetrated and rotatably connected by the rotating shaft.

[0009] Preferably, a plurality of emulsifying openings for emulsifying liquid cooperated with the emulsifying head are arranged on the outer contour of the circular block, and the emulsifying openings are uniformly distributed on the outer contour of the circular block, and two stirring blades for stirring the emulsified liquid in the reaction kettle are coaxially fixedly connected to the outer contour of the rotating shaft close to the bottom end.

[0010] Preferably, the cylindrical rod is provided with an adding mechanism for adding catalyst to the emulsified liquid in the reaction kettle, the adding mechanism comprises two storage tanks for storing catalyst solution fixedly connected to the end portions of the two cylindrical rods, the end portions of the cylindrical rods are each provided with a liquid communication hole for communicating the storage tank with the inside of the reaction kettle, and the cylindrical rod is provided with an auxiliary mechanism for quantitatively feeding the catalyst in the storage tank.

[0011] Preferably, the auxiliary mechanism comprises a sleeve movably connected to the outer contour of each of the two cylindrical rods close to the end portion, and each of the sleeves is provided with a through hole on the side corresponding to the liquid communication hole port.

[0012] Preferably, a cylindrical block is coaxially fixedly connected to the outer contour of the rotating shaft close to the end portion, a W-shaped groove for reciprocatingly moving the two sleeves up and down is arranged on the outer contour of the cylindrical block, a fixed block is fixedly connected to the opposite side of each of the two sleeves close to the end portion, and the opposite ends of the two fixed blocks are respectively penetrated to the inner walls of the W-shaped grooves on the adjacent side and are movably connected.

[0013] Preferably, the inner wall of the liquid inlet pipe is provided with a buffer mechanism for slowing down the impact of liquid, the buffer mechanism comprises two inclined pipes fixedly connected to the inner wall of the liquid inlet pipe near one end of the circular block, a connecting seat is fixedly connected to the inclined surface of each of the two inclined pipes, a shockproof baffle for slowing down the impact of liquid is rotatably connected to each of the two connecting seats, and a filter plate for filtering impurities in the liquid is fixedly connected to the end of each inclined pipe away from the shockproof baffle.

[0014] Preferably, a cleaning rod for scraping impurities on the surface of the filter plate is rotatably connected to each of the filter plates, a second conical gear is coaxially fixed to the end of each cleaning rod, a first conical gear is rotatably connected to each of the liquid inlet pipes near the second conical gear on one side, a transmission gear is coaxially fixed to the end of each of the two first conical gears away from the second conical gear, a rack is meshingly and drivably connected to the opposite sides of the two transmission gears, and the ends of each of the racks are fixedly connected to the adjacent side sleeve.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] I. By parallel two-way feeding design, liquid propylene and CO gas are introduced into the premixing cavity through two liquid inlet pipes respectively. In the premixing cavity, liquid propylene and CO gas are preliminarily mixed, and then further broken and emulsified through the emulsifying head and emulsifying port on the emulsifying mechanism. The emulsifying head rotates at high speed under the drive of the rotating shaft, and liquid propylene and CO gas are refined into micron-level gas-liquid emulsions, which significantly increases the gas-liquid contact area. The gas-liquid contact area is reduced from millimeter-level to centimeter-level to micron-level to nanometer-level, which greatly improves the mass transfer efficiency. This efficient mass transfer process not only speeds up the reaction rate, but also improves the conversion rate of the reaction and reduces the occurrence of side reactions. This solves the problem in the prior art that liquid propylene is usually introduced from the middle of the reaction kettle, and CO gas is introduced from the bottom of the reaction kettle. This feeding mode leads to uneven mixing of liquid and gas, easily causes disturbance to the flow field in the reaction kettle, and affects the stability and efficiency of the reaction.

[0017] II. By providing a storage tank and an auxiliary mechanism, precise quantitative feeding of the catalyst is realized. The storage tank stores the catalyst solution, which is introduced into the inside of the reaction kettle through the liquid passage. The sleeve, W-shaped groove and fixing block on the auxiliary mechanism realize uniform feeding of the catalyst through mechanical transmission, ensuring that the amount of catalyst is accurately controllable. This can ensure the stability of the reaction conditions, avoid the decrease of reaction efficiency or the increase of side reactions caused by excessive or insufficient catalyst, improve the reaction efficiency, and improve the consistency of product quality.

[0018] III. By setting the buffer mechanism in the inlet pipe, including the inclined pipe, the anti-collision baffle and the filter plate, the inclined pipe and the anti-collision baffle can effectively slow down the impact force of the liquid propylene, reduce the impact and disturbance on the environment in the premixing cavity, and the filter plate can filter the impurities in the liquid to ensure the purity of the liquid and further improve the reaction efficiency. The cleaning rod on the cleaning mechanism periodically cleans the impurities on the surface of the filter plate through mechanical transmission to ensure the flowability of the filter plate.

[0019] By the cooperation of the above structure, the problem that the existing device is difficult to pre-mix the liquid propylene and CO gas inside is solved. In the actual use process, the liquid propylene usually enters from the middle of the reaction kettle, and the CO gas enters the reaction kettle from the bottom of the reaction kettle to react, which easily disturbs the flow field in the reaction kettle, causes the mixture of liquid and gas to be not uniform enough, and affects the stability and reaction efficiency of the reaction. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the present application;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the present application; Figure 2

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the present application; Figure 2

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the present application;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the present application;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the present application; Figure 6

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the present application;

[0028] Figure 9 It is a schematic diagram of the three-dimensional structure of the present application; Figure 8

[0029] ​​​​In the figure: 1, reaction kettle; 2, liquid inlet pipe; 3, gas inlet pipe; 4, cylindrical rod; 401, liquid passage; 5, circular block; 501, premixing cavity; 502, emulsification port; 6, rotating shaft; 7, emulsification head; 8, stirring blade; 9, storage tank; 10, sleeve; 101, through hole; 11, cylindrical block; 111, W-shaped groove; 12, fixed block; 13, inclined pipe; 14, connecting seat; 15, impact baffle; 16, filter plate; 17, cleaning rod; 18, first conical tooth; 19, second conical tooth; 20, transmission gear; 21, rack. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] Embodiment one:

[0032] Please refer to Figures 1 to 9 The present application provides a technical solution: a parallel type bidirectional liquid feeding reaction system for producing butanol, including a reaction kettle 1 supported and placed by an external support, both sides of the reaction kettle 1 are penetrated and fixedly connected with liquid inlet pipes 2 for bidirectional feeding of liquid propylene, one end adjacent to the liquid inlet pipes 2 on both sides is penetrated and fixedly connected with a circular block 5, and the inner wall of the circular block 5 is provided with a premixing cavity 501 in communication with the liquid inlet pipes 2, both sides of the circular block 5 are fixedly connected with cylindrical rods 4 for supporting the circular block 5, the end portions of the two cylindrical rods 4 are penetrated to the top end of the reaction kettle 1 and fixedly connected, the bottom end of the reaction kettle 1 is penetrated and fixedly connected with a gas inlet pipe 3 for discharging CO gas to the inner wall of the premixing cavity 501 for premixing with liquid propylene, and the end portion of the gas inlet pipe 3 is penetrated to the inside of the premixing cavity 501 and fixedly connected, and the reaction kettle 1 is provided with an emulsification mechanism for crushing and mixing the premixed liquid propylene and CO gas in the premixing cavity 501.

[0033] In use, by setting the reaction kettle 1, the reaction kettle 1 is supported and placed on the ground through the external support, improves the stability of the reaction kettle 1, through the liquid inlet pipe 2 and the gas inlet pipe 3 arranged on the reaction kettle 1, the liquid inlet pipe 2 and the liquid inlet pipe 2 are connected with the inside of the reaction kettle 1, in order to facilitate the subsequent discharge of liquid propylene and CO gas into the inside of the reaction kettle 1, through the circular block 5 arranged on the liquid inlet pipe 2, and the premixing cavity 501 opened on the circular block 5, the liquid inlet pipe 2 and the gas inlet pipe 3 can be communicated with the inner wall of the premixing cavity 501, through the cylindrical rod 4 arranged on the circular block 5, the cylindrical rod 4 can fix and support the circular block 5 on the inner wall of the reaction kettle 1, improve the stability of the circular block 5, through the emulsification mechanism arranged on the reaction kettle 1, when the liquid inlet pipe 2 and the gas inlet pipe 3 put liquid propylene and CO gas into the premixing cavity 501 for premixing, the emulsification mechanism can fully crush and mix the liquid propylene and CO gas in the premixing cavity 501, form gas-liquid emulsion, further increase the contact area of gas-liquid, can improve the phase boundary area and the conduction rate of the reaction.

[0034] Example two:

[0035] On the basis of example one, further more:

[0036] The emulsification mechanism includes that the end of the reaction kettle 1 is penetrated and fixedly connected with the rotating shaft 6 driven to rotate by the power mechanism, the bottom end of the rotating shaft 6 penetrates into the premixing cavity 501 and is fixedly connected with the emulsification head 7 for crushing and mixing liquid propylene and CO gas, and the circular block 5 is penetrated and rotatably connected with the rotating shaft 6.

[0037] A plurality of emulsification openings 502 for emulsifying liquid cooperated with the emulsification head 7 are arranged on the outer contour of the circular block 5, and the emulsification openings 502 are uniformly distributed on the outer contour of the circular block 5, and the outer contour of the rotating shaft 6 close to the bottom end is coaxially fixedly connected with two stirring blades 8 for stirring the emulsified liquid in the reaction kettle 1.

[0038] In use, through the rotating shaft 6 provided on the reaction kettle 1, the rotating shaft 6 is rotatably supported on the reaction kettle 1 and the circular block 5, and the rotating shaft 6 is driven to rotate by the motor, so that the motor can drive the rotating shaft 6 to rotate on the reaction kettle 1 and the circular block 5. The emulsifying head 7 is provided on the rotating shaft 6, and the emulsifying head 7 is coaxially fixedly connected with the rotating shaft 6, so that the rotating shaft 6 can drive the emulsifying head 7 to rotate synchronously on the inner wall of the premixing cavity 501. The emulsifying port 502 is formed in the circular block 5, and the emulsifying head 7 is in close contact with the inner wall of the premixing cavity 501. The emulsifying head 7 rotates, so that the emulsifying head 7 can crush and mix the liquid propylene and CO gas in the premixing cavity 501 under the action of the emulsifying port 502. The liquid is refined into micron-level gas-liquid emulsions, and the crushed and mixed gas-liquid emulsions enter the inner wall of the reaction kettle 1 through the emulsifying port 502 for reaction. The stirring blade 8 is provided on the rotating shaft 6, and the stirring blade 8 is coaxially fixedly connected with the rotating shaft 6. The stirring blade 8 can rotate synchronously with the emulsifying head 7, and the stirring blade 8 can stir the internal gas-liquid emulsion, so as to more uniformly distribute the reactants and improve the stability and uniformity of the reaction.

[0039] Example three:

[0040] Based on example two, further more:

[0041] The cylindrical rod 4 is provided with an adding mechanism for adding a catalyst to the emulsified liquid in the reaction kettle 1. The adding mechanism includes two cylindrical rods 4, and the end portions of the two cylindrical rods 4 are penetrated and fixedly connected with storage tanks 9 for storing catalyst solutions. The end portions of the cylindrical rods 4 are provided with liquid communication holes 401 for communicating the storage tanks 9 with the interior of the reaction kettle 1. The cylindrical rod 4 is provided with an auxiliary mechanism for quantitatively feeding the catalyst in the storage tank 9.

[0042] In use, the storage tank 9 is provided on the cylindrical rod 4 and fixedly supported on the cylindrical rod 4. First, the catalyst is stored in the storage tank 9, and the liquid communication holes 401 formed in the cylindrical rod 4 can communicate the storage tank 9 with the inner wall of the reaction kettle 1, so as to subsequently feed the catalyst in the storage tank 9 into the gas-liquid emulsion in the reaction kettle 1. The auxiliary mechanism provided on the cylindrical rod 4 can quantitatively and repeatedly feed the catalyst in the storage tank 9 into the reaction kettle 1 at a constant speed.

[0043] Example four:

[0044] Based on example three, further more:

[0045] The auxiliary mechanism includes two sleeves 10 movably connected to the outer contour of the proximal end of the cylindrical rod 4 on both sides, and a through hole 101 is formed in the bottom end of each sleeve 10 corresponding to one side of the liquid passage hole 401 port.

[0046] The outer contour of the proximal end of the rotating shaft 6 is coaxially fixedly connected with a cylindrical block 11, the outer contour of the cylindrical block 11 is provided with a W-shaped groove 111 for reciprocating movement of the two sleeves 10, the opposite sides of the proximal end of the two sleeves 10 are fixedly connected with fixed blocks 12, and the opposite ends of the two fixed blocks 12 are respectively penetrated to the inner walls of the W-shaped grooves 111 on the adjacent sides and movably connected.

[0047] In use, the sleeve 10 is movably connected to the outer contour of the cylindrical rod 4 by being arranged on the cylindrical rod 4, the through hole 101 is arranged on the sleeve 10, the through hole 101 and the liquid passage hole 401 are located at the same side corresponding position, the cylindrical block 11 is coaxially fixedly connected with the rotating shaft 6, the cylindrical block 11 can be synchronously rotated with the rotating shaft 6, the W-shaped groove 111 is arranged on the cylindrical block 11, and the fixed block 12 arranged on the sleeve 10 can movably support the fixed block 12 on the inner wall of the W-shaped groove 111, the fixed block 12 is fixedly supported on the sleeve 10, the sleeve 10 can be reciprocatingly moved on the outer contour of the cylindrical rod 4 under the action of the W-shaped groove 111 when the rotating shaft 6 drives the cylindrical block 11 to rotate.

[0048] As shown in Figure 2 , Figure 3 , Figure 6 and Figure 7 , the initial state is that the liquid passage hole 401 is in sealing state with the inner wall of the sleeve 10, at this time, the addition of catalyst into the reaction kettle 1 is stopped, when the fixed block 12 pulls the sleeve 10 to move to the limit distance in the upward vertical direction, and the through hole 101 and the liquid passage hole 401 port are in corresponding position, the catalyst in the storage tank 9 can enter the inner wall of the reaction kettle 1 through the liquid passage hole 401 and the through hole 101 under the action of gravity, when the fixed block 12 pulls the sleeve 10 to reset in the downward vertical direction, and the sleeve 10 synchronously drives the through hole 101 to be separated from the liquid passage hole 401, the liquid passage hole 401 is sealed with the inner wall of the sleeve 10 and the addition of catalyst into the reaction kettle 1 is stopped, the quantitative and multiple addition of catalyst into the reaction kettle 1 is realized, the catalyst is rhodium-based catalyst, and the reaction efficiency of propylene and CO gas is improved.

[0049] Example Five

[0050] Based on example four, further more:

[0051] The inner wall of the liquid inlet pipe 2 is provided with a buffer mechanism for slowing down the impact of liquid, which comprises two inclined pipes 13 fixedly connected to the inner wall of the liquid inlet pipe 2 near one end of the circular block 5, two connecting seats 14 fixedly connected to the inclined surfaces of the two inclined pipes 13, and two impact-resistant baffles 15 pivotally connected to the two connecting seats 14. The end of each inclined pipe 13 away from the impact-resistant baffle 15 is fixedly connected to a filter plate 16 for filtering impurities in the liquid.

[0052] In use, the inclined pipe 13 is fixed to the inner wall of the reaction kettle 1, the connecting seat 14 is fixedly supported on the inclined pipe 13, and the impact-resistant baffle 15 is pivotally supported on the connecting seat 14. In the initial state, the impact-resistant baffle 15 can seal one end of the inclined pipe 13 near the circular block 5. When the liquid propylene enters the circular block 5 through the liquid inlet pipe 2, the impact-resistant baffle 15 can be rotated under the impact of the liquid propylene and unsealed from the inclined pipe 13. The impact-resistant baffle 15 can slow down the impact of the liquid propylene, so that the liquid propylene can enter the premixing cavity 501 smoothly, reducing the impact and disturbance to the environment in the premixing cavity 501 and improving the mixing and emulsification effect of the liquid propylene and CO gas.

[0053] The filter plate 16 provided on the inclined pipe 13 can filter the tiny impurities in the liquid propylene, ensuring the purity of the liquid propylene and further improving the reaction efficiency.

[0054] Example six:

[0055] Based on example five, further improvements are made:

[0056] Each filter plate 16 is penetrated and pivotally connected with a cleaning rod 17 for scraping the impurities on the surface of the filter plate 16. The end of each cleaning rod 17 is coaxially fixedly connected with a second conical gear 19. Each liquid inlet pipe 2 near the second conical gear 19 is penetrated and pivotally connected with a first conical gear 18 engaged with the second conical gear 19 for transmission. The ends of the two first conical gears 18 away from the second conical gear 19 are coaxially fixedly connected with a transmission gear 20. The opposite sides of the two transmission gears 20 are engaged and transmissionally connected with a rack 21. The ends of each rack 21 are fixedly connected with an adjacent side sleeve 10.

[0057] In use, through the cleaning rod 17 set up on the filter plate 16, the cleaning rod 17 can be supported on the filter plate 16, and the second taper tooth 19 set up on the cleaning rod 17, the second taper tooth 19 is coaxial with the cleaning rod 17, through the first taper tooth 18 set up on the liquid inlet pipe 2, the first taper tooth 18 can be engaged with the second taper tooth 19, through the rack 21 set up on the sleeve 10, and the rack 21 is fixedly supported on the sleeve 10, the sleeve 10 can drive the rack 21 to move up and down reciprocatingly, through the transmission gear 20 set up on the first taper tooth 18, and the transmission gear 20 is engaged with the rack 21, and the rack 21 can drive the transmission gear 20 to rotate reciprocatingly, and the transmission gear 20 is coaxial with the first taper tooth 18, so that the first taper tooth 18 can drive the cleaning rod 17 to rotate reciprocatingly on the surface of the filter plate 16 through the second taper tooth 19, and the cleaning rod 17 can scrape off the small impurities on the surface of the filter plate 16, ensuring the flowability of the filter plate 16.

[0058] Further, the existing device can pre-mix liquid propylene and CO gas inside during actual use, which is convenient to use and better than traditional products.

[0059] The standard parts used in the embodiment can be directly purchased from the market, and the non-standard structural parts according to the description and drawings can also be directly processed according to the existing technical knowledge without doubt, and the connection mode of each part adopts the mature conventional means in the existing technology, and the machinery, parts and equipment adopt the conventional models in the existing technology, so the specific description is not made here.

[0060] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A parallel, bidirectional liquid-feed reaction system for producing butanol and octanol, characterized in that: The reactor includes a reaction vessel (1) supported by an external bracket. Both sides of the reaction vessel (1) are connected to a liquid inlet pipe (2) for bidirectional feeding of liquid propylene. A circular block (5) is connected to one of the adjacent ends of the liquid inlet pipe (2). The inner wall of the circular block (5) is provided with a premixing chamber (501) that communicates with the liquid inlet pipe (2). Columnar rods (4) are fixedly connected to both sides of the circular block (5) at symmetrical positions to support the circular block (5). The ends of the two cylindrical rods (4) are both connected to the top of the reactor (1) and fixedly connected. The bottom end of the reactor (1) is connected to an inlet pipe (3) for discharging CO gas into the inner wall of the premixing chamber (501) and premixing it with liquid propylene. The end of the inlet pipe (3) is connected to the inside of the premixing chamber (501) and fixedly connected. The reactor (1) is provided with an emulsification mechanism for crushing and mixing the premixed liquid propylene and CO gas inside the premixing chamber (501).

2. The parallel bidirectional liquid feed reaction system for producing butanol and octanol according to claim 1, characterized in that: The emulsification mechanism includes a rotating shaft (6) driven by a power mechanism that is connected to the end of the reaction vessel (1) and rotates on a fixed axis. The bottom end of the rotating shaft (6) is connected to the premixing chamber (501) and is fixedly connected to an emulsification head (7) for crushing and mixing liquid propylene and CO gas. The circular block (5) is connected to the rotating shaft (6) and rotates on it.

3. The parallel bidirectional liquid feed reaction system for producing butanol and octanol according to claim 2, characterized in that: The outer contour of the circular block (5) is provided with multiple emulsification ports (502) that cooperate with the emulsification head (7) to emulsify the liquid, and the emulsification ports (502) are evenly distributed on the outer contour of the circular block (5). Two stirring blades (8) for stirring the emulsified liquid inside the reaction vessel (1) are coaxially fixed on the outer contour of the rotating shaft (6) near the bottom.

4. The parallel bidirectional liquid feed reaction system for producing butanol and octanol according to claim 1, characterized in that: The cylindrical rod (4) is provided with a catalyst addition mechanism for adding catalyst to the emulsion liquid inside the reactor (1). The addition mechanism includes two cylindrical rods (4) whose ends are both through and fixedly connected to a storage tank (9) for storing catalyst solution. Each cylindrical rod (4) has a liquid passage hole (401) at its end that connects the storage tank (9) to the inside of the reactor (1). The cylindrical rod (4) is provided with an auxiliary mechanism for quantitatively adding catalyst to the storage tank (9).

5. The parallel bidirectional liquid feed reaction system for producing butanol and octanol according to claim 4, characterized in that: The auxiliary mechanism includes sleeves (10) that are vertically and movably connected to the outer contours of the cylindrical rods (4) on both sides near their ends. Each sleeve (10) has a through hole (101) on the side corresponding to the liquid passage hole (401) port at its bottom end.

6. The parallel bidirectional liquid feed reaction system for producing butanol and octanol according to claim 3, characterized in that: A cylindrical block (11) is coaxially fixed to the outer contour of the rotating shaft (6) near its end. A W-shaped groove (111) is provided on the outer contour of the cylindrical block (11) to pull the two sleeves (10) to move up and down and back and forth. A fixing block (12) is fixedly connected to the opposite side of the two sleeves (10) near their ends. The opposite ends of the two fixing blocks (12) are respectively connected to the inner wall of the adjacent W-shaped groove (111) and are movably connected.

7. The parallel bidirectional liquid feed reaction system for producing butanol and octanol according to claim 1, characterized in that: The inner wall of the liquid inlet pipe (2) is provided with a buffer mechanism to reduce the impact of liquid. The buffer mechanism includes two liquid inlet pipes (2) with inclined pipes (13) fixedly connected to the inner wall of the end near the circular block (5). Connecting seats (14) are fixedly connected to the inclined surfaces of the two inclined pipes (13). Anti-impact baffles (15) to reduce the impact of liquid are rotatably connected to the two connecting seats (14) on a fixed axis. A filter plate (16) to filter impurities in the liquid is fixedly connected to the end of each inclined pipe (13) away from the anti-impact baffle (15).

8. The parallel bidirectional liquid feed reaction system for producing butanol and octanol according to claim 7, characterized in that: Each of the filter plates (16) is connected to a cleaning rod (17) that scrapes off impurities from the surface of the filter plate (16) by means of a fixed axis. The end of each cleaning rod (17) is coaxially fixed to a second conical tooth (19). Each liquid inlet pipe (2) is close to the second conical tooth (19) and is connected to a first conical tooth (18) that meshes with the second conical tooth (19) on one side. The ends of the two first conical teeth (18) away from the second conical tooth (19) are coaxially fixed to a transmission gear (20). The opposite sides of the two transmission gears (20) are meshed with racks (21). The end of each rack (21) is fixedly connected to the adjacent sleeve (10).

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