An agitator for catalytically enhancing the octane rating of gasoline

Abstract

The present application relates to gasoline processing equipment technical field, disclose a kind of stirring device for catalytically improving gasoline octane number, including cylinder and stirring rod, stirring rod is hollow structure and is communicated with first liquid inlet pipe;Stirring rod is further provided with at least one group of stirring arm group, and stirring arm group includes multiple stirring arms fixed perpendicularly with stirring rod, multiple stirring arms are all hollow structure, and all are communicated with stirring rod;The outside of stirring arm is provided with multiple spoiler arc plates, and multiple spoiler arc plates are discontinuously distributed along the axial direction of stirring arm in spiral shape;Stirring arm is further provided with multiple liquid leakage ports, and multiple liquid leakage ports are all located on the side of stirring arm with the rotation direction of stirring rod consistent;The top of cylinder is provided with booster pump, and the liquid inlet of booster pump is communicated with second liquid inlet pipe, and the liquid outlet of booster pump is communicated with liquid distribution device.The cooperation of stirring rod, stirring arm and spoiler arc plate improves the efficiency of stirring and the quality of microemulsion, and then realizes the catalytic improvement of gasoline octane number.

Description

Technical Field

[0001] This invention relates to the field of gasoline production technology, specifically to a stirring device for catalytically increasing the octane number of gasoline. Background Technology

[0002] Octane number is an indicator of gasoline's anti-knock performance and a crucial factor in evaluating gasoline quality. Current methods for increasing gasoline octane number include: first, selecting high-quality feedstocks and processing techniques, such as catalytic cracking and secondary processing methods like etherification of light gasoline, hydrotreating, and reforming; and second, adding anti-knock agents or high-octane components. Anti-knock agents mainly include MMT, MTBE, aniline, methanol, and ethanol, while high-octane components include isooctane, cumene, and alkylbenzenes.

[0003] Due to the structure of my country's refining and chemical industry, most of the gasoline used in vehicles comes from catalytic cracking gasoline. The process of increasing the octane number of gasoline through catalysis includes the following main steps: (1) preparing catalytic gasoline heavy components; (2) forcibly mixing the catalytic gasoline heavy components with a complexing solvent to form a microemulsion; (3) after cooling the microemulsion in step (2), mixing it with a refrigerant, and then the mixed material enters the reactor for complexation reaction; (4) the effluent after the complexation reaction enters a three-phase centrifuge for centrifugation separation, and gaseous refrigerant, complexing solvent after reaction, complexed catalytic gasoline heavy components and complex solid are obtained after the three-phase centrifuge; (5) the obtained complexed catalytic gasoline heavy components are washed by a solvent washing tower and returned to the feed side of the wall separator; (6) the gasoline component with increased octane number is obtained at the bottom of the wall separator.

[0004] In actual production, a stirring device is needed to form the microemulsion in step (2). Existing stirring devices have the following problems:

[0005] 1. Insufficient stirring results in a lower quality microemulsion;

[0006] 2. Low stirring efficiency.

[0007] The above problems affect the subsequent progress of the process. Therefore, a stirring device for catalytically increasing the octane number of gasoline is needed. Summary of the Invention

[0008] To solve the above-mentioned technical problems, the present invention discloses a stirring device for catalytically increasing the octane number of gasoline, comprising a cylinder and a stirring rod. The stirring rod is rotatably connected to the middle of the cylinder and has a hollow structure. The top end of the stirring rod is located on the outside of the cylinder and is connected to a first liquid inlet pipe, through which gasoline heavy components flow. At least one set of stirring arms is also provided on the stirring rod, located inside the cylinder. The stirring arm set includes multiple stirring arms fixed perpendicularly to the stirring rod, all of which are hollow structures and are uniformly arranged circumferentially along the stirring rod. The stirring arm is distributed and connected to the stirring rod; multiple turbulence-inducing arc plates are provided on the outer side of the stirring arm, and the multiple turbulence-inducing arc plates are distributed intermittently in a spiral shape along the axial direction of the stirring arm; multiple drain ports are also provided on the stirring arm, and the multiple drain ports are located on the side of the stirring arm that is in the same direction as the rotation of the stirring rod, and the number of drain ports on both sides of any turbulence-inducing arc plate is different; a booster pump is provided at the top of the cylinder, the inlet of the booster pump is connected to a second inlet pipe, the second inlet pipe contains a complexing solvent, and the outlet of the booster pump is connected to a liquid distribution device, the liquid distribution device being fixed on the inner wall of the cylinder.

[0009] The further improvement of this application is as follows:

[0010] The number of leakage ports between the turbulence arc plate closest to the stirring rod and the stirring rod is set to n, and the difference between the number of leakage ports on both sides of any turbulence arc plate is n.

[0011] The further improvement of this application is as follows:

[0012] The liquid distribution device includes at least one liquid distribution unit, which includes an annular liquid distribution pipe and multiple liquid outlet pipes. The annular liquid distribution pipe is fixed on the inner wall of the cylinder and is connected to the liquid outlet of the booster pump. The annular liquid distribution pipe is located below the stirring arm assembly. All of the multiple liquid outlet pipes are connected to the annular liquid distribution pipe and are located below the stirring arm assembly.

[0013] The further improvement of this application is as follows:

[0014] There is an angle α between the plane where the liquid outlet pipe and the annular liquid separator are located, and the angle α ranges from 10° to 20°.

[0015] The further improvement of this application is as follows:

[0016] A bearing is fixed to the outer side of the stirring rod, and the outer wall of the bearing is fixed to the top of the cylinder. A driven wheel is provided above the bearing and is fixed to the outer side of the stirring rod. A motor is fixed to the side wall of the cylinder, and a driving wheel is fixed to the output end of the motor. The driving wheel drives the driven wheel to rotate through a belt.

[0017] The further improvement of this application is as follows:

[0018] The top of the stirring rod is provided with a rotary joint, which is connected to the first liquid inlet pipe.

[0019] The technical solution of this application has at least the following beneficial effects:

[0020] First, by adjusting the angle α between the liquid outlet pipe and the annular distribution pipe, the liquid distribution effect of the liquid distribution device was optimized, so that the complexing solvent could be more evenly distributed inside the cylinder, thereby improving the mixing effect with the gasoline heavy components.

[0021] Secondly, by incorporating bearings, driven wheels, a motor, and a driving wheel, the rotation of the stirring rod and stirring arm assembly becomes more stable and continuous, effectively improving stirring efficiency. Simultaneously, the rotary joint allows the first liquid inlet pipe to be flexibly adjusted with the rotation of the stirring rod, avoiding pipe twisting or tangling and ensuring a smooth supply of gasoline heavy components.

[0022] Furthermore, this invention further enhances the stirring effect of the stirring arm assembly by adjusting the number of drain ports between multiple turbulence-inducing arc plates and the stirring rod, as well as the difference in the number of drain ports on both sides of any turbulence-inducing arc plate. This design allows for a more uniform distribution of gasoline heavy components during stirring, while also increasing the complexity of liquid flow, thereby improving the quality of the microemulsion.

[0023] In summary, the stirring device for catalytically increasing the octane number of gasoline of the present invention has significantly improved both stirring effect and efficiency, providing strong technical support for the catalytically increasing octane number process in gasoline production.

[0024] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the stirring device for catalytically increasing the octane number of gasoline according to an embodiment of the present invention;

[0026] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of a stirring device used in catalytic converters to increase the octane number of gasoline.

[0027] Figure 3 This is a schematic diagram of the liquid flow direction of the stirring device used for catalytically increasing the octane number of gasoline according to an embodiment of the present invention;

[0028] Figure 4 yes Figure 1 A schematic diagram of the structure of the stirring arm (left view).

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Cylinder; 2. Stirring rod; 21. Bearing; 22. Driven wheel; 23. Motor; 24. Drive wheel; 25. Rotary joint; 3. First inlet pipe; 4. Stirring arm assembly; 41. Stirring arm; 42. Baffle plate; 43. Drain; 5. Booster pump; 6. Second inlet pipe; 7. Liquid distribution device; 8. Liquid separating device; 81. Annular liquid separating pipe; 82. Outlet pipe. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] The present invention will be described in detail with reference to the following embodiments:

[0033] Example 1

[0034] like Figure 1-4 As shown, a stirring device for catalytically increasing the octane number of gasoline includes a cylinder 1 and a stirring rod 2. The stirring rod 2 is rotatably connected to the middle of the cylinder 1. The stirring rod 2 has a hollow structure, and its top end is located on the outside of the cylinder 1 and connected to a first liquid inlet pipe 3. Gasoline heavy components flow through the first liquid inlet pipe 3. At least one set of stirring arms 4 is also provided on the stirring rod 2. The stirring arms 4 are located inside the cylinder 1. Preferably, three sets of stirring arms 4 can be provided, such as... Figure 1 As shown, the three sets of stirring arms 4 are distributed sequentially.

[0035] Specifically, the stirring arm assembly 4 includes multiple stirring arms 41 that are fixed perpendicularly to the stirring rod 2. All stirring arms 41 are hollow structures and are evenly distributed around the stirring rod 2, and are all connected to the stirring rod 2. This structure enables the transfer and distribution of heavy gasoline components in the liquid, ensuring that the heavy gasoline components can enter each stirring arm 41 evenly, thereby further improving the stirring effect and mixing uniformity.

[0036] Furthermore, multiple baffles 42 are provided on the outer side of the stirring arm 41, such as... Figure 1 As shown, multiple turbulence-inducing arc plates 42 are intermittently distributed in a spiral shape along the axial direction of the stirring arm 41. The arrangement of the turbulence-inducing arc plates 42 can increase the complexity of liquid flow on the outside of the stirring arm 41, improve the stirring effect, and make the heavy components of gasoline more evenly distributed in the cylinder 1.

[0037] Multiple drain ports 43 are provided on the stirring arm 41. The multiple drain ports 43 are all located on the side of the stirring arm 41 that is in the same direction as the rotation of the stirring rod 2, and are distributed along the length of the stirring arm 41. The drain ports 43 allow the heavy components of gasoline to flow out through the drain ports 43 and mix with the liquid in the cylinder 1, thereby achieving the purpose of stirring.

[0038] In the above structure, the special structure of the turbulence arc plate 42 and the position structure of the leakage port 43 cause the gasoline to be diverted and flow out, and then be affected by the turbulence arc plate 42 to quickly form a vortex, which is then continuously impacted by the stirring arm 41, thus improving the mixing effect.

[0039] Furthermore, the number of leakage ports 43 between the turbulence arc plate 42 closest to the stirring rod 2 and the stirring rod 2 is set to n, and the difference between the number of leakage ports 43 on both sides of any turbulence arc plate 42 is n.

[0040] Preferred, such as Figure 1 As shown, the number of drain ports 43 between the turbulence arc plate 42 closest to the stirring rod 2 and the stirring rod 2 is set to 3. Then the number of drain ports 43 adjacent to it is 6 / 9 / 12 / 15... This design, by adjusting the number and distribution of drain ports 43, can further control the outflow speed and direction of gasoline heavy components, thereby optimizing the stirring effect and mixing uniformity.

[0041] In addition, the top of the cylinder 1 is connected to a second liquid inlet pipe 6, and a complexing solvent flows through the second liquid inlet pipe 6. The complexing solvent is preferably a urea solution.

[0042] In this embodiment, the second liquid inlet pipe 6 is connected to a booster pump 5, which can pressurize the complexing solvent and send it into the cylinder 1, thereby improving the flow rate and mixing effect of the complexing solvent.

[0043] Furthermore, the outlet of the booster pump 5 is connected to a liquid distribution device 7, which is fixed on the inner wall of the cylinder 1. The liquid distribution device 7 enables the complexing solvent to be distributed more evenly inside the cylinder 1, thereby improving the mixing effect with the gasoline heavy components.

[0044] Example 2

[0045] Based on Example 1, the liquid distribution device 7 was further improved, with reference to... Figure 1-2Specifically, the liquid distribution device 7 includes at least one liquid distribution device 8. The liquid distribution device 8 includes an annular liquid distribution pipe 81 and multiple liquid outlet pipes 82. The annular liquid distribution pipe 81 is disposed on the inner wall of the cylinder 1, and the multiple liquid outlet pipes 82 are uniformly connected to the outer side of the annular liquid distribution pipe 81 and communicate with the annular liquid distribution pipe 81. This design allows the complexing solvent to be uniformly sprayed into the inside of the cylinder 1 through the liquid outlet pipes 82 and mixed with the heavy components of gasoline.

[0046] Furthermore, to enhance the stirring effect and mixing uniformity, an angle α exists between the plane of the liquid outlet pipe 82 and the annular dispensing pipe 81, the angle α ranging from 10° to 20°, and the end of the liquid outlet pipe 82 faces the stirring arm assembly 4. Preferably, the angle α is 15°. This arrangement allows the flow of the complexed solvent and the flow of the gasoline heavy components to generate eddies, thereby improving the mixing effect of the two.

[0047] In addition, in order to improve the spraying effect of the complexing solvent, a nozzle is provided at the end of the liquid outlet pipe 82. The nozzle can spray the complexing solvent at a certain angle and speed, thereby increasing its distribution range and mixing effect in the cylinder 1.

[0048] In practical use, a sufficient amount of complexing solvent is first introduced into the cylinder 1 through the second liquid inlet pipe 6 until the complexing solvent reaches the bottom of the stirring arm 41. At this time, gasoline heavy components are introduced from the first liquid inlet pipe 3, and the motor 23 is started to drive the stirring rod 2 to rotate. During this process, the volume ratio of complexing solvent to gasoline heavy components in the cylinder 1 is always maintained at 2:1. The stirring arm 41 rotates so that the complexing solvent and gasoline heavy components are fully stirred and reacted.

[0049] Example 3

[0050] Based on Example 2, the power transmission mechanism of the stirring device has been further optimized. Specifically, the top of the stirring rod 2 is rotatably connected to the top of the cylinder 1 via a bearing 21, and a driven wheel 22 is provided thereon. A motor 23 is installed outside the cylinder 1, and a driving wheel 24 that cooperates with the driven wheel 22 is provided on the output shaft of the motor 23. The motor 23 drives the stirring rod 2 to rotate through the driving wheel 24 and the driven wheel 22. This design makes the power transmission of the stirring device more stable and reliable, and at the same time facilitates the control and adjustment of the stirring speed.

[0051] Furthermore, in order to facilitate the replenishment of the gasoline heavy components inside the stirring rod 2, a rotary joint 25 is provided on the top of the stirring rod 2. The rotary joint 25 ensures that the first liquid inlet pipe 3 can still maintain a sealed connection with the stirring rod 2 during the rotation of the stirring rod 2, thereby improving the ease of use and flexibility of the device.

[0052] In addition, in order to improve the stirring effect and the uniformity of mixing, the speed of stirring rod 2 can be adjusted as needed. For example, the speed of stirring rod 2 can be controlled by adjusting the speed of motor 23, thereby adjusting the stirring effect and the uniformity of mixing according to actual needs.

[0053] Example 4

[0054] Based on Example 3, the overall structure of the stirring device was further optimized and improved to further enhance its stirring effect and mixing uniformity.

[0055] Specifically, the cylinder 1 can be cylindrical in shape to accommodate different stirring needs. Furthermore, the cylinder 1 can be made of corrosion-resistant and high-temperature-resistant metal materials to improve its service life and reliability.

[0056] Furthermore, the number and length of the stirring arms 41 can be adjusted as needed to adapt to different stirring requirements. For example, when it is necessary to improve the stirring effect, the number or length of the stirring arms 41 can be increased; when it is necessary to reduce the stirring resistance, the number or length of the stirring arms 41 can be reduced.

[0057] In addition, to improve the safety of the mixing device, a protective cover can be installed on the outside of the cylinder 1 to prevent operators from accidentally touching the mixing device and causing a safety accident.

[0058] In summary, the stirring device for catalytically increasing the octane number of gasoline of the present invention achieves efficient mixing and stirring of heavy gasoline components and complexing solvents through a specific structural and layout design. Furthermore, the device has advantages such as simple structure, convenient operation, and safety and reliability, making it suitable for use in gasoline processing enterprises of various sizes.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0060] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stirring device for catalytically increasing the octane number of gasoline, comprising a cylinder (1) and a stirring rod (2), wherein the stirring rod (2) is rotatably connected to the middle of the cylinder (1), characterized in that, The stirring rod (2) has a hollow structure. The top of the stirring rod (2) is located on the outside of the cylinder (1) and is connected to a first liquid inlet pipe (3). Gasoline heavy components flow through the first liquid inlet pipe (3). At least one set of stirring arms (4) is also provided on the stirring rod (2). The stirring arms (4) are located inside the cylinder (1). The stirring arms (4) include multiple stirring arms (41) that are fixed perpendicularly to the stirring rod (2). The multiple stirring arms (41) are all hollow structures. The multiple stirring arms (41) are evenly distributed around the stirring rod (2) and are all connected to the stirring rod (2). Multiple turbulence-inducing arc plates (42) are provided on the outside of the stirring arms (41). Multiple turbulence-inducing arc plates (42) are distributed intermittently in a spiral shape along the axial direction of the stirring arm (41); multiple drain ports (43) are also provided on the stirring arm (41), and the multiple drain ports (43) are all located on the side of the stirring arm (41) that is in the same direction as the rotation of the stirring rod (2), and the number of drain ports (43) on both sides of any turbulence-inducing arc plate (42) is different; a booster pump (5) is provided at the top of the cylinder (1), the inlet of the booster pump (5) is connected to a second inlet pipe (6), a complexing solvent flows in the second inlet pipe (6), and the outlet of the booster pump (5) is connected to a liquid distribution device (7), the liquid distribution device (7) is fixed on the inner wall of the cylinder (1).

2. The stirring device for catalytically increasing the octane number of gasoline according to claim 1, characterized in that, The number of leakage ports (43) between the turbulence arc plate (42) near the stirring rod (2) and the stirring rod (2) is set to n, and the difference between the number of leakage ports (43) on both sides of any turbulence arc plate (42) is n.

3. The stirring device for catalytically increasing the octane number of gasoline according to claim 1, characterized in that, The liquid distribution device (7) includes at least one liquid distribution device (8). The liquid distribution device (8) includes an annular liquid distribution pipe (81) and multiple liquid outlet pipes (82). The annular liquid distribution pipe (81) is fixed on the inner wall of the cylinder (1) and is connected to the liquid outlet of the booster pump (5). The annular liquid distribution pipe (81) is located below the stirring arm assembly (4). The multiple liquid outlet pipes (82) are all connected to the annular liquid distribution pipe (81) and are all located below the stirring arm assembly (4).

4. The stirring device for catalytically increasing the octane number of gasoline according to claim 3, characterized in that, There is an angle α between the plane where the liquid outlet pipe (82) and the annular liquid distribution pipe (81) are located, and the angle α ranges from 10° to 20°.

5. The stirring device for catalytically increasing the octane number of gasoline according to claim 1, characterized in that, A bearing (21) is fixed to the outside of the stirring rod (2). The outer wall of the bearing (21) is fixed to the top of the cylinder (1). A driven wheel (22) is provided above the bearing (21). The driven wheel (22) is fixed to the outside of the stirring rod (2). A motor (23) is fixed to the side wall of the cylinder (1). A drive wheel (24) is fixed to the output end of the motor (23). The drive wheel (24) drives the driven wheel (22) to rotate via a belt.

6. The stirring device for catalytically increasing the octane number of gasoline according to claim 1, characterized in that, The top end of the stirring rod (2) is provided with a rotary joint (25), which is connected to the first liquid inlet pipe (3).

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