Methanol synthesis reactor
By introducing rotating and stirring components into the methanol synthesis reactor, the problem of low catalyst utilization was solved, and a more efficient methanol synthesis reaction was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LIJIN SPECIAL EQUIPMENT MANUFACTURING CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-01
AI Technical Summary
In existing methanol synthesis reactors, the straight-tube design results in short contact time between the reactant gas and the catalyst, leading to low catalyst utilization and affecting methanol synthesis efficiency and yield.
The system employs a rotating assembly and a stirring assembly. The rotation of the tube shell and the stirring blade assembly are driven by gears, which enhances heat exchange and material mixing, and promotes full contact between the catalyst and the reactant gas.
It improves catalyst utilization, enhances the efficiency and yield of methanol synthesis reaction, and shortens the reaction induction period.
Smart Images
Figure CN224180855U_ABST
Abstract
Description
A methanol synthesis reactor Technical Field
[0001] This utility model relates to the field of methanol synthesis reactor technology, and in particular to a methanol synthesis reactor. Background Technology
[0002] A methanol synthesis reactor is a chemical equipment used to realize the methanol synthesis reaction. It provides a closed space and suitable conditions for the chemical reaction of carbon monoxide, carbon dioxide and hydrogen under specific temperature, pressure and catalyst to produce methanol.
[0003] Currently used methanol synthesis reactors typically employ straight tube designs for their heat exchangers. The regular shape of straight tubes facilitates installation and arrangement within the reactor, making assembly and maintenance easier, thus shortening the installation cycle and reducing maintenance difficulty. When reactant gases flow within straight tubes, the smoother inner wall surface compared to other complex-shaped pipes reduces gas flow resistance, minimizing energy loss and the power consumption required for gas transport.
[0004] Although straight-tube heat exchangers are easy to install and have low resistance, the reaction gas flows at a high speed inside the tube, resulting in a short contact time with the catalyst and insufficient reaction with it. This leads to low catalyst utilization and affects the efficiency and yield of methanol synthesis. Therefore, a methanol synthesis reactor is proposed to solve the above problems. Summary of the Invention
[0005] To overcome the above shortcomings, this invention provides a methanol synthesis reactor, which aims to improve the problem that the limited heat exchange efficiency in the prior art cannot effectively promote drug mixing.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A methanol synthesis reactor includes an outer shell, a rotating shell fixedly connected to one end of the outer shell, a feed tank fixedly connected to the side of the rotating shell, a discharge tank fixedly connected to the other end of the outer shell, a rotating assembly disposed inside the rotating shell, a connecting circular plate rotatably connected to the inside of the discharge tank, a stirring assembly disposed on the side of the connecting circular plate, and a separation assembly disposed inside the discharge tank.
[0008] The rotating assembly includes a first gear and a second gear, both of which are rotatably connected to the inner side of the rotating housing. The second gear is meshed with the side of the first gear. A drive motor is fixedly connected to the outer side of the rotating housing, and the second gear is fixedly connected to the output end of the drive motor.
[0009] As a further description of the above technical solution:
[0010] The stirring assembly includes a connecting rod, which is fixedly connected to the side of the connecting circular plate, and two stirring blade assemblies are fixedly connected to the outside of the connecting rod.
[0011] As a further description of the above technical solution:
[0012] The separation component includes a baffle plate, which is fixedly connected to the inner side of the discharge tank. An inclined filter screen is fixedly connected to the inner side of the discharge tank and is disposed at the bottom of the baffle plate.
[0013] As a further description of the above technical solution:
[0014] The separation assembly also includes a discharge pipe and an air outlet pipe. The discharge pipe is located inside the discharge tank, the air outlet pipe is located at the bottom of the discharge tank, and the discharge pipe is located at the bottom end of the inclined filter screen.
[0015] As a further description of the above technical solution:
[0016] The gear and the inner side of the connecting circular plate are provided with multiple tube shells. The inner side of the end of the outer shell is provided with a water inlet pipe, and the inner side of the bottom of the outer shell is provided with a water outlet pipe. The multiple tube shells are rotatably connected to the inside of the outer shell.
[0017] As a further description of the above technical solution:
[0018] A fixed circular plate is fixedly connected to the inside of the feed tank, and an air inlet pipe is fixedly connected to the inside of the feed tank. Multiple diversion pipes are provided on the inner side of the end of the air inlet pipe, and the other ends of the multiple diversion pipes are fixedly connected to the inside of the fixed circular plate. A feed pipe is fixedly connected to the inside of the feed tank, and the other end of the feed pipe is fixedly connected to the inside of the fixed circular plate.
[0019] As a further description of the above technical solution:
[0020] The feed tank is provided with a feed chamber, which is located between the gear and the fixed circular plate;
[0021] As a further description of the above technical solution:
[0022] A protective shell is fixedly connected to the outside of the rotating housing, and the protective shell is fixedly connected to the outside of the drive motor.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, a second gear fixedly connected to the output end of a drive motor drives a first gear meshing with it to rotate, thereby realizing the rotation of the shell and the connecting circular plate, thus enhancing heat exchange and promoting material mixing. The rotation of the first gear causes the shell to rotate inside the outer shell, enhancing the heat exchange efficiency between the material inside the shell and the hot water outside the shell, providing stable and uniform temperature conditions for the methanol synthesis reaction.
[0025] 2. In this utility model, the connecting circular plate drives the connecting rod and stirring blade assembly to rotate, thereby achieving the effect of enhanced gas-liquid mixing and reaction mass transfer. The rotation of the stirring blade assembly allows the synthesis gas to fully contact the catalyst, accelerating the chemical reaction kinetics process and shortening the reaction induction period. Attached Figure Description
[0026] Figure 1 is a three-dimensional schematic diagram of a methanol synthesis reactor proposed in this utility model;
[0027] Figure 2 is a schematic diagram of the baffle plate structure of a methanol synthesis reactor proposed in this utility model;
[0028] Figure 3 is a schematic diagram of the structure of the diversion tube of a methanol synthesis reactor proposed in this utility model;
[0029] Figure 4 is a schematic diagram of the shell structure of a methanol synthesis reactor proposed in this utility model;
[0030] Figure 5 is a schematic diagram of the inclined filter screen of a methanol synthesis reactor proposed in this utility model;
[0031] Figure 6 is a schematic diagram of the gear one of the methanol synthesis reactor proposed in this utility model.
[0032] Legend:
[0033] 1. Outer shell; 2. Feed tank; 3. Discharge tank; 4. Rotating shell; 5. Protective shell; 6. Water inlet pipe; 7. Water outlet pipe; 8. Discharge pipe; 9. Air outlet pipe; 10. Baffle plate; 11. Inclined filter screen; 12. Stirring blade assembly; 13. Connecting circular plate; 14. Pipe shell; 15. Gear one; 16. Feed chamber; 17. Feed pipe; 18. Diverter pipe; 19. Drive motor; 20. Gear two; 21. Air inlet pipe; 22. Fixed circular plate; 23. Connecting rod. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] Referring to Figures 1, 2, 4, and 6, an embodiment of this utility model is provided: a methanol synthesis reactor, including an outer shell 1, characterized in that: a rotating shell 4 is fixedly connected to one end of the outer shell 1, a feed tank 2 is fixedly connected to the side of the rotating shell 4, a discharge tank 3 is fixedly connected to the other end of the outer shell 1, a rotating assembly is provided inside the rotating shell 4, a connecting circular plate 13 is rotatably connected to the inside of the discharge tank 3, a stirring assembly is provided on the side of the connecting circular plate 13, and a separation assembly is provided inside the discharge tank 3;
[0036] The rotating assembly includes gear 15 and gear 20, both rotatably connected to the inner side of the rotating shell 4. Gear 20 meshes with the side of gear 15. A drive motor 19 is fixedly connected to the outer side of the rotating shell 4, and gear 20 is fixedly connected to the output end of the drive motor 19. When the drive motor 19 starts, it drives gear 20, which is fixedly connected to its output end, to rotate. Gear 20 meshes with gear 15, thereby driving gear 15 to rotate. When gear 15 rotates, the tube shell 14 connected to it rotates accordingly, stirring and mixing the material in the reactor. A protective shell 5 is fixedly connected to the outer side of the rotating shell 4, and the protective shell 5 is fixedly connected to the outer side of the drive motor 19. Multiple tube shells 14 are arranged inside gear 15 and the connecting circular plate 13. A water inlet pipe 6 is arranged inside the end of the outer shell 1, and a water outlet pipe 7 is arranged inside the bottom of the outer shell 1. Multiple tube shells 14 are rotatably connected inside the outer shell 1. Cooling medium is introduced into the water inlet pipe 6 on the inner side of the end of the outer shell 1. The cooling medium flows in the shell 14 and exchanges heat with the material in the reactor, carrying away the heat generated by the reaction and maintaining the reaction temperature within a suitable range. Then it flows out from the water outlet pipe 7 on the inner side of the bottom of the outer shell 1.
[0037] Referring to Figures 2 and 5, the stirring assembly includes a connecting rod 23, which is fixedly connected to the side of the connecting circular plate 13. Two stirring blade assemblies 12 are fixedly connected to the outside of the connecting rod 23. The rotation of gear 15 drives the connecting rod 23 and the stirring blade assemblies 12 to rotate through the connecting circular plate 13, further enhancing the stirring effect on the materials and making the reaction more complete.
[0038] Referring to Figures 1, 2, and 5, the separation assembly includes a baffle plate 10, which is fixedly connected to the inside of the discharge tank 3. An inclined filter screen 11 is fixedly connected to the inside of the discharge tank 3 and is positioned at the bottom of the baffle plate 10. The reaction product enters the discharge tank 3 and first passes through the baffle plate 10, changing the airflow direction and causing some liquid product to adhere to the baffle plate and flow down. Then, the remaining gas-liquid mixture passes through the inclined filter screen 11 for further filtration and separation of the liquid product. The separation assembly also includes a discharge pipe 8 and a gas outlet pipe 9. The discharge pipe 8 is positioned inside the discharge tank 3, and the gas outlet pipe 9 is positioned at the bottom of the discharge tank 3. The discharge pipe 8 is located at the bottom end of the inclined filter screen 11. The liquid product flows along the inclined filter screen to the discharge pipe 8 for discharge, while the gas is discharged from the gas outlet pipe 9, achieving gas-liquid separation.
[0039] Referring to Figures 1, 2, and 3, a fixed circular plate 22 is fixedly connected to the inner side of the feed tank 2, and an air inlet pipe 21 is also fixedly connected to the inner side of the feed tank 2. Multiple diversion pipes 18 are arranged on the inner side of the end of the air inlet pipe 21, and the other ends of the multiple diversion pipes 18 are all fixedly connected to the inside of the fixed circular plate 22. A feed pipe 17 is fixedly connected to the inner side of the feed tank 2, and the other end of the feed pipe 17 is fixedly connected to the inside of the fixed circular plate 22. A feed chamber 16 is provided inside the feed tank 2, located between the gear 15 and the fixed circular plate 22. The raw material enters the feed chamber 16 of the feed tank 2 through the feed pipe 17. Simultaneously, the gas required for the reaction enters from the air inlet pipe 21, and is evenly distributed to the fixed circular plate 22 through the diversion pipes 18, achieving preliminary mixing of the raw material and the gas, before entering the reactor.
[0040] Working principle: First, the raw material enters the feeding chamber 16 of the feeding tank 2 through the feeding pipe 17. Multiple diversion pipes 18 at the end of the gas inlet pipe 21 inside the feeding tank 2 evenly distribute the gaseous raw material, while the liquid raw material enters through the feeding pipe 17. After being mixed in the feeding chamber 16, it waits to enter the reaction zone.
[0041] The drive motor 19 is started, driving gear 20 to rotate. Gear 20 meshes with gear 15, causing gear 15 to rotate. Gear 15 drives the connected tube shell 14 to rotate within the outer shell 1. Hot water is introduced into the tube shell 14 through the inlet pipe 6, and cold water is discharged through the outlet pipe 7. The rotation of the tube shell 14 and the heat exchange between the hot water inside the tube and the reacting gas outside the tube provide suitable temperature conditions for the methanol synthesis reaction. The raw material enters the tube shell 14 from the feed chamber 16, where the methanol synthesis reaction occurs.
[0042] The reaction product enters the discharge tank 3. The connecting disc 13 rotates under the drive of the gear 15. The connecting rod 23 on the side of the connecting disc 13 and the stirring blade assembly 12 rotate accordingly to stir the product in the discharge tank 3, making the product more uniformly mixed, which is beneficial to the subsequent separation process.
[0043] After the products are fully mixed, the separation components in the discharge tank 3 begin to operate. The baffle plate 10 changes the airflow direction, and the liquid carried in the gas impacts the baffle plate 10 due to inertia and flows down the plate. The remaining gas-liquid mixture passes through the inclined filter screen 11, which further intercepts the liquid. The liquid gathers into droplets on the surface of the filter screen and flows along the inclined filter screen 11 to the discharge pipe 8 for discharge. The separated gas is discharged from the gas outlet pipe 9.
[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A methanol synthesis reactor, comprising a shell (1), characterized in that: A rotating shell (4) is fixedly connected to one end of the outer shell (1), a feed tank (2) is fixedly connected to the side of the rotating shell (4), and a discharge tank (3) is fixedly connected to the other end of the outer shell (1). A rotating assembly is provided inside the rotating shell (4), a connecting circular plate (13) is rotatably connected inside the discharge tank (3), a stirring assembly is provided on the side of the connecting circular plate (13), and a separation assembly is provided inside the discharge tank (3). The rotating assembly includes a gear one (15) and a gear two (20). Both gear one (15) and gear two (20) are rotatably connected to the inside of the rotating shell (4), and gear two (20) is meshed with the side of gear one (15). A drive motor (19) is fixedly connected to the outside of the rotating shell (4), and gear two (20) is fixedly connected to the output end of the drive motor (19).
2. The methanol synthesis reactor according to claim 1, characterized in that: The stirring assembly includes a connecting rod (23), which is fixedly connected to the side of the connecting circular plate (13), and two stirring blade assemblies (12) are fixedly connected to the outside of the connecting rod (23).
3. The methanol synthesis reactor according to claim 1, characterized in that: The separation component includes a baffle plate (10), which is fixedly connected to the inside of the discharge tank (3). An inclined filter screen (11) is fixedly connected to the inside of the discharge tank (3), and the inclined filter screen (11) is located at the bottom of the baffle plate (10).
4. A methanol synthesis reactor according to claim 3, characterized in that: The separation assembly also includes a discharge pipe (8) and an air outlet pipe (9). The discharge pipe (8) is located inside the discharge tank (3), and the air outlet pipe (9) is located at the bottom of the discharge tank (3). The discharge pipe (8) is located at the bottom end of the inclined filter screen (11).
5. A methanol synthesis reactor according to claim 1, characterized in that: Multiple tube shells (14) are provided inside the gear (15) and the connecting circular plate (13). A water inlet pipe (6) is provided inside the end of the outer shell (1). A water outlet pipe (7) is provided inside the bottom of the outer shell (1). Multiple tube shells (14) are rotatably connected inside the outer shell (1).
6. A methanol synthesis reactor according to claim 1, characterized in that: A fixed circular plate (22) is fixedly connected to the inside of the feed tank (2), and an air inlet pipe (21) is fixedly connected to the inside of the feed tank (2). Multiple diversion pipes (18) are provided on the inner side of the end of the air inlet pipe (21). The other end of the multiple diversion pipes (18) is fixedly connected to the inside of the fixed circular plate (22). A feed pipe (17) is fixedly connected to the inside of the feed tank (2), and the other end of the feed pipe (17) is fixedly connected to the inside of the fixed circular plate (22).
7. A methanol synthesis reactor according to claim 1, characterized in that: The feed tank (2) is provided with a feed chamber (16) inside, which is located between the gear (15) and the fixed circular plate (22).
8. A methanol synthesis reactor according to claim 1, characterized in that: A protective shell (5) is fixedly connected to the outside of the rotating shell (4), and the protective shell (5) is fixedly connected to the outside of the drive motor (19).