A reactive distillation column for facilitating reaction of feed materials
By installing a liquid collection plate, tray, reaction plate, and reboiler in the reactive distillation column, and using a motor to drive the guide plate to rotate, the problem of insufficient reaction of multiple streams of material is solved, thereby improving the reaction conversion rate and yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAIYAN FINE CHEM IND CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-26
AI Technical Summary
In existing distillation columns, the reaction between multiple feed streams is insufficient during use, resulting in low reaction conversion and yield. Furthermore, the reaction time is short when using packing or catalysts, leading to poor synergistic mass transfer effects.
A reactive distillation column was designed to facilitate the reaction of raw materials. By setting up a liquid collection plate, a tray, a reaction plate and a reboiler in the column body, and setting an inlet, an outlet and a gas hole on the reaction plate, the column is driven by a motor to rotate the guide plate, which promotes the full mixing and reaction of the liquid phase. Combined with the depth design of the packing tank and the catalytic tank, the reaction efficiency is improved.
It achieves thorough mixing and reaction of multiple materials, improves reaction conversion rate and yield, and enhances the synergistic effect of mass transfer reaction.
Smart Images
Figure CN224404384U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of distillation column technology, specifically a reactive distillation column that facilitates the reaction of raw materials. Background Technology
[0002] A distillation column is a tower-type gas-liquid contact device used for distillation. It utilizes the property that the components in a mixture have different volatility, i.e., different vapor pressures at the same temperature, to separate the lighter components (low-boiling substances) from the liquid phase into the gas phase, while the heavier components (high-boiling substances) from the gas phase into the liquid phase.
[0003] A reactive distillation column involves the mixing and mass transfer of multiple feed streams, during which a reaction occurs. Simultaneously, reaction products and by-products are separated within the column by distillation based on their different boiling points. This continuous removal of reaction products through distillation improves reaction conversion and yield.
[0004] However, in the process of using existing distillation columns, the reaction between multiple feed streams is insufficient, so they cannot be completely converted into reaction products and by-reaction products, resulting in poor mass transfer reaction synergy. When passing through packing or catalyst, the reactants have a short time inside, resulting in low reaction conversion rate and yield. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this invention provides a reactive distillation column that facilitates the reaction of raw materials. It has the advantages of fully mixing multiple streams of materials and ensuring sufficient reaction during distillation, thus solving the problems of low reaction conversion rate and yield.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution:
[0009] A reactive distillation column for facilitating raw material reaction includes a column body. Inside the column body, from top to bottom, are sequentially installed a liquid collecting plate, a tray, a reaction plate, and a reboiler. A drive rod runs through the interior of the tray, reaction plate, and reboiler. The reaction plate contains a packing tank and a catalytic tank filled with packing material and catalyst. The upper part of the reaction plate has several inlets for liquid phase passage, and the lower part has several outlets for liquid phase passage. The inlets are sequentially connected to the packing tank, catalytic tank, and outlets. The reaction plate has gas holes that allow only gas phase passage. An impeller and a guide plate are fixedly connected to the outside of the drive rod. The impeller is located below the liquid collecting plate and the reaction plate, and the guide plate is located above the reaction plate.
[0010] Preferably, the upper surface of the guide plate is an inclined surface that facilitates the movement of the liquid phase.
[0011] Preferably, a liquid inlet is provided on one side of the inner wall of the tower, and the liquid inlet is located between the liquid collecting plate and the tower plate;
[0012] A liquid phase outlet is provided on one side of the inner wall of the tower. The liquid phase outlet is located between the reaction plate and the reboiler, and is located on the side closer to the reboiler.
[0013] Preferably, a gas phase inlet is provided on one side of the inner wall of the tower, and the gas phase inlet is located at the lower part of the reboiler;
[0014] The top of the tower is provided with a gas phase outlet, and one end of the gas phase outlet is connected to a condenser.
[0015] Preferably, a reflux pipe is provided on one side of the inner wall of the tower, and the reflux pipe is connected to the condenser.
[0016] Preferably, the surfaces of the liquid collecting plate, the tower plate, and the reboiler are also provided with pores that allow only the gas phase to pass through.
[0017] The upper surface of the liquid collecting plate is provided with an inclined surface to facilitate the flow of liquid phase, and the lowest point of the inclined surface is slightly higher than the lowest point of the return pipe.
[0018] Preferably, a motor is fixedly installed at the lower part of the tower body, and the output end of the motor is connected to the transmission rod.
[0019] (III) Beneficial Effects
[0020] Compared with the prior art, this utility model provides a reactive distillation column that facilitates the reaction of raw materials, and has the following beneficial effects:
[0021] 1. This reactive distillation column facilitates the reaction of raw materials. The liquid phase enters the packing tank and catalytic tank containing the packing and catalyst through the inlet. Since the depth of the packing tank and catalytic tank is greater than the diameter of the inlet and outlet, the liquid phase can react more fully in the packing tank and catalytic tank, thereby improving the reaction conversion rate. Because the reaction plate has gas holes that only allow the gas phase to pass through, the gas phase enters the packing tank and catalytic tank through the gas holes. The reaction products are continuously removed through distillation, further improving the reaction conversion rate and yield.
[0022] 2. This reactive distillation column, which facilitates the reaction of raw materials, is driven by a motor to rotate a transmission rod, which in turn drives the guide plate to rotate. Since the upper surface of the guide plate is an inclined surface that facilitates the movement of the liquid phase, the liquid phase on the reaction plate is moved during the rotation of the guide plate, so that the liquid phase is carried into the inlet. At the same time, the guide plate stirs the liquid phase added into the column, thereby enabling the multiple liquid phases to react fully. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of the reactive distillation column of this utility model, which facilitates the reaction of raw materials.
[0024] Figure 2 This is a cross-sectional structural diagram of the middle body of the reactive distillation column of this utility model, which facilitates the reaction of raw materials.
[0025] Figure 3 This is an enlarged structural diagram of the reactive distillation column of this invention, which facilitates the reaction of raw materials, at point A.
[0026] Figure 4 This is a schematic diagram of the reaction plate structure in the reactive distillation column of this utility model, which facilitates the reaction of raw materials.
[0027] Figure 5 This is a cross-sectional view of the reaction plate in the reactive distillation column of this utility model, which facilitates the reaction of raw materials.
[0028] Figure 6 This is another cross-sectional view of the reaction plate in the reactive distillation column of this utility model, which facilitates the reaction of raw materials.
[0029] In the diagram: 1. Tower body; 11. Liquid inlet; 12. Liquid outlet; 13. Gas inlet; 14. Gas outlet; 15. Reflux pipe; 2. Collection plate; 3. Tower plate; 4. Reaction plate; 41. Liquid inlet; 42. Packing tank; 43. Catalytic tank; 44. Liquid outlet; 45. Gas vent; 5. Reboiler; 6. Drive rod; 61. Impeller; 62. Baffle plate; 7. Condenser; 8. Motor. Detailed Implementation
[0030] 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.
[0031] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0032] In addition, a fixed connection refers to a connection in which parts or components are fixed and there is no relative movement; a transmission connection refers to a connection in which mechanical motion or torque is transmitted to other working parts through a transmission component; a sliding connection refers to a connection in which two objects are in contact but not fixed and can slide relative to each other; and a rotational connection refers to a connection in which two objects are in contact but not fixed and can rotate relative to each other.
[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0034] Example 1:
[0035] This embodiment provides a reactive distillation column that facilitates the reaction of raw materials and has the following technical features.
[0036] Please see Figure 1-6 A reactive distillation column for facilitating raw material reaction includes a column body 1. Inside the column body 1, from top to bottom, are a collection plate 2, a tray 3, a reaction plate 4, and a reboiler 5. A drive rod 6 runs through the interior of the tray 3, reaction plate 4, and reboiler 5. The reaction plate 4 contains a packing tank 42 and a catalytic tank 43 filled with packing and catalyst. The upper part of the reaction plate 4 has several inlets 41 for liquid phase passage, and the lower part of the reaction plate 4 has several outlets 44 for liquid phase passage. The inlets 41 are sequentially connected to the packing tank 42, the catalytic tank 43, and the outlets 44. The reaction plate 4 has vent holes 45 that allow only gas phase passage. An impeller 61 and a guide plate 62 are fixedly connected to the outside of the drive rod 6. The impeller 61 is distributed at the lower part of the collection plate 2 and the reaction plate 4, and the guide plate 62 is located at the upper part of the reaction plate 4.
[0037] Furthermore, the depth of the packing tank 42 and the catalytic tank 43 is greater than the diameter of the liquid inlet 41 and the liquid outlet 44, which facilitates the reaction of the liquid phase in the packing tank 42 and the catalytic tank 43.
[0038] In an optional embodiment, the upper surface of the guide plate 62 is an inclined surface that facilitates the movement of the liquid phase.
[0039] In an optional embodiment, a liquid inlet 11 is provided on one side of the inner wall of the tower body 1, and the liquid inlet 11 is located between the liquid collecting plate 2 and the tower plate 3.
[0040] A liquid phase outlet 12 is provided on one side of the inner wall of the tower body 1. The liquid phase outlet 12 is located between the reaction plate 4 and the reboiler 5, and is located on the side closer to the reboiler 5.
[0041] Furthermore, the upper surface of the reboiler 5 is located in the middle of the liquid phase outlet 12, and the upper surface of the reboiler 5 is set close to the lowest point of the liquid phase outlet 12, so that the reacted liquid phase can be discharged through the liquid phase outlet 12.
[0042] In an optional embodiment, a gas phase inlet 13 is provided on one side of the inner wall of the tower body 1, and the gas phase inlet 13 is located at the lower part of the reboiler 5.
[0043] A gas phase outlet 14 is provided at the top of the tower body 1, and a condenser 7 is connected to one end of the gas phase outlet 14.
[0044] Furthermore, temperature sensors are installed at both the bottom and top of the tower body 1 to monitor the internal temperature of the tower body 1, thereby facilitating the adjustment of the reboiler 5 and the condenser 7.
[0045] In an optional embodiment, a reflux pipe 15 is provided on one side of the inner wall of the tower body 1, and the reflux pipe 15 is connected to the condenser 7.
[0046] In an optional embodiment, the surfaces of the liquid collecting plate 2, the tower plate 3, and the reboiler 5 are also provided with pores 45 that allow only the gas phase to pass through.
[0047] The upper surface of the liquid collecting plate 2 is provided with an inclined surface to facilitate the flow of liquid phase, and the lowest point of the inclined surface is slightly higher than the lowest point of the return pipe 15.
[0048] It should be noted that the lowest point of the inclined surface of the liquid collection plate 2 is located in the middle of the diameter of the return pipe 15, and is close to the side of the lowest point of the return pipe 15.
[0049] In an optional embodiment, a motor 8 is fixedly installed on the lower part of the tower body 1, and the output end of the motor 8 is connected to the transmission rod 6.
[0050] In summary, this reactive distillation column, which facilitates the reaction of raw materials, allows the liquid phase to enter the packing tank 42 and catalytic tank 43 containing the packing and catalyst through the inlet 41. Since the depth of the packing tank 42 and catalytic tank 43 is greater than the diameter of the inlet 41 and outlet 44, the liquid phase can react more fully in the packing tank 42 and catalytic tank 43, thereby improving the reaction conversion rate. Because the reaction plate 4 has vents 45 that only allow the gas phase to pass through, the gas phase enters the packing tank 42 and catalytic tank 43 through the vents 45, and the reaction products are continuously removed through distillation, further improving the reaction conversion rate and yield.
[0051] This reactive distillation column, which facilitates the reaction of raw materials, is driven by a motor 8 to rotate a transmission rod 6, which in turn drives a guide plate 62 to rotate. Since the upper surface of the guide plate 62 is an inclined surface that facilitates the movement of the liquid phase, the liquid phase on the reaction plate 4 is moved during the rotation of the guide plate 62, so that the liquid phase is carried into the inlet 41. At the same time, the guide plate 62 stirs the liquid phase added into the column body 1, so that the multiple liquid phases can react fully.
[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A reactive distillation column for facilitating raw material reaction, comprising a column body (1), wherein a collection plate (2), a tray (3), a reaction plate (4), and a reboiler (5) are sequentially installed from top to bottom inside the column body (1), and a drive rod (6) passes through the tray (3), the reaction plate (4), and the reboiler (5), characterized in that: The reaction plate (4) is provided with a packing tank (42) and a catalyst tank (43) containing packing and catalyst. The upper part of the reaction plate (4) is provided with a number of liquid inlets (41) for liquid phase to pass through, and the lower part of the reaction plate (4) is provided with a number of liquid outlets (44) for liquid phase to pass through. The liquid inlets (41) are connected to the packing tank (42), the catalyst tank (43) and the liquid outlets (44) in sequence. The reaction plate (4) is provided with gas holes (45) that only allow gas phase to pass through. An impeller (61) and a guide plate (62) are fixedly connected to the outside of the transmission rod (6). The impeller (61) is distributed at the lower part of the liquid collection plate (2) and the reaction plate (4), and the guide plate (62) is located at the upper part of the reaction plate (4).
2. The reactive distillation column according to claim 1, characterized in that, The upper surface of the guide plate (62) is an inclined surface that facilitates the movement of the liquid phase.
3. The reactive distillation column for facilitating raw material reaction according to claim 1, characterized in that, A liquid inlet (11) is provided on one side of the inner wall of the tower body (1), and the liquid inlet (11) is located between the liquid collection plate (2) and the tower plate (3); A liquid phase outlet (12) is provided on one side of the inner wall of the tower body (1). The liquid phase outlet (12) is located between the reaction plate (4) and the reboiler (5). The liquid phase outlet (12) is located on the side close to the reboiler (5).
4. The reactive distillation column according to claim 1, characterized in that, A gas inlet (13) is provided on one side of the inner wall of the tower body (1), and the gas inlet (13) is located at the lower part of the reboiler (5). The top of the tower body (1) is provided with a gas phase outlet (14), and one end of the gas phase outlet (14) is connected to a condenser (7).
5. A reactive distillation column for facilitating raw material reaction according to claim 4, characterized in that, A reflux pipe (15) is provided on one side of the inner wall of the tower body (1), and the reflux pipe (15) is connected to the condenser (7).
6. A reactive distillation column for facilitating raw material reaction according to claim 5, characterized in that, The surfaces of the liquid collecting plate (2), the tower plate (3) and the reboiler (5) are also provided with gas holes (45) that allow only the gas phase to pass through. The upper surface of the liquid collecting plate (2) is provided with an inclined surface to facilitate the flow of liquid phase, and the lowest point of the inclined surface is slightly higher than the lowest point of the return pipe (15).
7. A reactive distillation column for facilitating raw material reaction according to claim 1, characterized in that, A motor (8) is fixedly installed on the lower part of the tower body (1), and the output end of the motor (8) is connected to the transmission rod (6).