A purification system and process for high-purity isooctane

Abstract

This invention relates to the field of isooctane purification technology, specifically to a high-purity isooctane purification system and process, including a tower body and a conveying module disposed on the tower body for introducing gas and liquid. Cleaning boxes are also disposed on both sides of the tower body. A packing layer is disposed within the tower body. The system also includes a placement module comprising a first supporting steel wire and a first separating steel wire disposed on the lower side of the packing layer, and a second supporting steel wire disposed in the middle of the packing layer. The beneficial effects of this invention are: by vertically placing Pall rings on the upper and lower sides of the packing frame, ensuring that its openings are aligned with the gas-liquid flow pattern, and in conjunction with the scattered Pall rings, sufficient gas-liquid contact is achieved while reducing the gas-liquid flow pressure, thus improving the removal of light components. Through the arrangement of the Pall rings, when the packing is blocked and subjected to gas pressure, it will move upwards, providing time for detection and preventing direct mutual compression and damage between the packing materials.

Description

Technical Field

[0001] This invention relates to the field of isooctane purification technology, specifically to a high-purity isooctane purification system and process. Background Technology

[0002] The purification process of isooctane is mainly achieved through processes such as fractionation, adsorption, and hydrogenation. The fractionation purification process is further divided into the removal of light components and the removal of heavy components. The removal of light components is mainly carried out through a light component removal tower. The principle is that the gas flows upward from the bottom of the tower and forms a countercurrent contact with the downward flowing liquid. In the packing layer, the gas and liquid mix, and the light components enter the gas phase through mass transfer at the gas-liquid interface, while the heavy components are enriched in the liquid phase.

[0003] Patent document CN110483231 B discloses an energy-saving and environmentally friendly isooctane purification and light-weight removal tower, including a packed tower body. A box is located within the packed tower body, situated between two packing layers. The two sides of the box are fixedly connected to the inner walls of the packed tower body via connecting blocks. Inclined plates are fixedly installed around the top surface of the box, with the outer periphery of the top of the inclined plates contacting and fitting against the inner wall of the packed tower body. Several evenly distributed first liquid inlets are opened around the top surface of the box, and two second liquid inlets are opened in the center of the top surface of the box, distributed left and right. An arc-shaped plate is installed inside the box, with its outer walls fixedly connected to the inner walls of the box. A first through hole is opened in the center of the bottom inner wall of the arc-shaped plate. A first vertical pipe with a solenoid valve is fixedly installed on the inner wall of the hole. A float level switch is provided on the upper side of one side of the box. A second through hole is opened in the middle of the bottom of the box. The inner wall of the second through hole is connected to the second vertical pipe through a sealed bearing. A cross-shaped connecting pipe is fixedly installed at the bottom end of the second vertical pipe. The second vertical pipe and the cross-shaped connecting pipe are internally connected. Several evenly distributed nozzles are fixedly installed on the bottom edge of the cross-shaped connecting pipe. This application allows the liquid to be sprayed in all directions by rotating the cross-shaped connecting pipe, thereby allowing the liquid to be sprayed evenly on the packing layer located at the bottom of the packed tower body. At the same time, the rotation of the cross-shaped connecting pipe allows the liquid and gas to be mixed better, further improving the light-duty removal effect.

[0004] In the process of removing light pollutants, there are two paths for gas-liquid mixing: one is mixing within the packing layer, and the other is contact outside the packing layer. The aforementioned application uses the rotation of a cross-shaped connecting pipe to improve the mixing of liquid and gas, thus ensuring more sufficient gas-liquid contact outside the packing layer. However, contact mixing within the packing layer is the primary path for removing light pollutants. Traditional packing layers are constructed by stacking or scattering packing between support plates and pressure plates. Stacking connects the gas outlets of the packing, increasing the gas-liquid throughput, but it can easily lead to channeling of the liquid, resulting in insufficient gas-liquid contact. Scattering packing, while reducing channeling, can easily increase the gas pressure between the packing layers, reducing the throughput. Furthermore, as the process of removing light pollutants continues, the packing layer is easily blocked by heavy polymer components and tar in the raw material, further reducing the throughput. Under the pressure provided by the gas pressure, the packing materials are squeezed against each other, causing damage and deformation of the packing materials, and collapse of the packing layer, affecting the light pollutant removal effect. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a purification system and process for high-purity isooctane, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-purity isooctane purification system, comprising a tower body and a conveying module disposed on the tower body for introducing gas and liquid, cleaning tanks disposed on both sides of the tower body, a packing layer disposed in the tower body, and further comprising:

[0007] The placement module includes a first bearing steel wire and a first dividing steel wire disposed on the lower side of the packing layer, and a second bearing steel wire disposed in the middle of the packing layer. A third bearing steel wire and a second dividing steel wire are disposed on the upper side of the packing layer for arranging the packing. When the conveying module introduces gas and liquid into the packing layer, the gas and liquid are redistributed, reducing the gas pressure in the packing layer while improving the gas-liquid mixing effect.

[0008] Optionally, a limiting module is also included, the limiting module comprising an elastic member fixedly connected to the second separating steel wire, and a receiving steel wire fixedly connected to the elastic member, a connecting steel wire fixedly connected to the receiving steel wire, and a limiting frame fixedly connected to the other end of the connecting steel wire.

[0009] Optionally, the conveying module includes a sprayer disposed on the upper side of the tower body and an air inlet pipe disposed on the lower side of the tower body, wherein a gas distributor is disposed on the air inlet pipe.

[0010] Optionally, the packing layer includes a mounting frame disposed in the tower body, and a packing frame disposed in the mounting frame.

[0011] Optionally, it also includes a flow-regulating component, which includes a flow-regulating box fixedly installed in the mounting frame and a flow-regulating plate fixedly connected above the flow-regulating box. The flow-regulating box is provided with a through groove and a redistribution hole.

[0012] Optionally, it also includes an atomizing component, which includes a first servo motor disposed in a flow chamber and a first rotating shaft fixedly connected to the output shaft of the first servo motor, wherein a dispersing component is fixedly connected to the bottom of the first rotating shaft.

[0013] Optionally, it also includes an adjustment component, which includes a transmission module disposed on the first rotating shaft and a drive module fixed to the transmission module. Slider blocks are fixedly installed on both sides of the packing frame, and the cleaning box is provided with a sliding groove adapted to the slider.

[0014] Optionally, a replacement component is also included, comprising a second servo motor fixedly mounted on the cleaning chamber and a lead screw fixedly connected to the output shaft of the second servo motor. The cleaning chamber is helically connected to the lead screw, and a sealing plate is provided in the cleaning chamber.

[0015] Optionally, it also includes a dispensing port on the cleaning tank, and a pump pipe and an outlet pipe fixedly installed at the bottom of the cleaning tank.

[0016] A purification process for high-purity isooctane, using the high-purity isooctane purification system described above, includes the following steps:

[0017] S1: When in use, liquid and gas are introduced through the sprayer and the air inlet pipe respectively, so that the gas and liquid are fully mixed and contacted in the packing frame filled with Pall rings, allowing the light components to transfer mass into the gas phase through the gas-liquid interface, while the heavy components are enriched in the liquid phase.

[0018] S2: Before the gas enters the packing frame, it will first pass through the slow flow box. The slow flow box will retain the liquid, reduce its dripping speed, and increase the gas-liquid contact time. By starting the first servo motor to make the dispersing component rotate, the dripping liquid can be atomized, so that after the liquid passes through the packing frame, it will come into contact with the gas again to remove light.

[0019] S3: The first servo motor will start the transmission module, which will cause the drive module to drive the packing frame to move up and down and vibrate, thereby adjusting the position of the packing and reducing the probability of local polymer accumulation.

[0020] S4: By starting the second servo motor, different packing layers can be replaced, allowing the purification system to continue operating while cleaning the used packing.

[0021] In the above technical solution, the beneficial effects of the present invention are as follows: by vertically placing Pall rings on the upper and lower sides of the packing frame, making its opening the same as the gas-liquid flow pattern, and cooperating with the scattered Pall rings therein, the gas and liquid can be fully contacted at the same time, while reducing the gas and liquid flow pressure and improving the light removal effect. By arranging the Pall rings, when the packing is blocked and subjected to gas pressure, it will move upward, providing time for detection and avoiding direct squeezing and damage between the packings.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0023] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0026] Figure 3 This is a schematic diagram showing the positional relationship between the replacement components and the mounting frame of the present invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of the packing frame of the present invention;

[0028] Figure 5 This is a three-dimensional exploded structural diagram of the mounting frame, filling frame, and placement module of the present invention;

[0029] Figure 6 This is a three-dimensional exploded view of the placement module and the limiting module of the present invention;

[0030] Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure at point B in the diagram;

[0031] Figure 8 This is a schematic diagram showing the positional relationship between the placement module and the limiting module of the present invention;

[0032] Figure 9 This is a schematic diagram of the specific structure of the placement module of the present invention. Figure 1 ;

[0033] Figure 10 This is a schematic diagram of the specific structure of the placement module of the present invention. Figure 2 ;

[0034] Figure 11This is a schematic diagram showing the positional relationship between the second load-bearing steel wire and the Pall ring of the present invention;

[0035] Figure 12 This is a schematic diagram of the internal structure of the mounting frame of the present invention;

[0036] Figure 13 This is a schematic diagram showing the positional relationship between the flow-slowing component, the atomizing component, and the regulating component of the present invention;

[0037] Figure 14 For the present invention Figure 4 A magnified schematic diagram of the structure at point A in the diagram.

[0038] In the diagram: 1. Tower body; 11. Demister; 12. Sprayer; 13. Air inlet pipe; 14. Gas distributor; 2. Cleaning box; 21. Mounting frame; 22. Packing frame; 23. First bearing steel wire; 24. First separating steel wire; 25. Second bearing steel wire; 26. Holding steel wire; 27. Third bearing steel wire; 28. Second separating steel wire; 29. ​​Pall ring; 3. Elastic element; 31. Receiving steel wire; 32. Connecting steel wire; 33. Limiting frame; 34. Through hole; 35. Bolt; 4. 41. Flow-slowing box; 42. Flow-slowing plate; 43. Through groove; 44. Redistribution hole; 5. First servo motor; 51. First rotating shaft; 52. Disassembled parts; 6. First rotating wheel; 61. Transmission belt; 62. Second rotating wheel; 63. Second rotating shaft; 64. Drive block; 65. Driven column; 66. Ball bearing; 67. Slider; 68. Slide groove; 7. Second servo motor; 71. Lead screw; 72. Limit block; 8. Sealing plate; 81. Handle; 9. Discharge port; 91. Pump pipe; 92. Discharge pipe. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0040] Example 1: Please refer to Figures 1 to 11 ,and Figure 14 This invention provides a technical solution: a purification system for high-purity isooctane, comprising a tower body 1 and a conveying module disposed on the tower body 1 for introducing gas and liquid, a cleaning tank 2 disposed on both sides of the tower body 1, a packing layer disposed in the tower body 1, and further comprising:

[0041] The placement module includes a first bearing steel wire 23 and a first dividing steel wire 24 disposed on the lower side of the packing layer, and a second bearing steel wire 25 disposed in the middle of the packing layer. A third bearing steel wire 27 and a second dividing steel wire 28 are disposed on the upper side of the packing layer for arranging the packing. When the conveying module introduces gas and liquid into the packing layer, the gas and liquid are redistributed, reducing the gas pressure in the packing layer while improving the gas-liquid mixing effect.

[0042] It also includes a limiting module, which includes an elastic member 3 fixedly connected to the second dividing steel wire 28, and a receiving steel wire 31 fixedly connected to the elastic member 3. A connecting steel wire 32 is fixedly connected to the receiving steel wire 31, and a limiting frame 33 is fixedly connected to the other end of the connecting steel wire 32.

[0043] The conveying module includes a sprayer 12 installed on the upper side of the tower body 1 and an air inlet pipe 13 installed on the lower side of the tower body 1. A gas distributor 14 is installed on the air inlet pipe 13.

[0044] The packing layer includes a mounting frame 21 disposed in the tower body 1, and a packing frame 22 disposed in the mounting frame 21.

[0045] Specifically, during use, liquid is introduced from the top of tower 1 through sprayer 12, and gas is introduced from the bottom of tower 1 through air inlet pipe 13, so that gas and liquid come into contact and mix in countercurrent flow. Sprayer 12 can be an atomizer or a rotary sprayer to make the liquid more evenly distributed. Combined with gas distributor 14 to evenly distribute the gas, the gas-liquid contact can be more sufficient, improving the light removal effect. Demister 11 is also provided on the upper side of the inner cavity of tower 1 to remove tiny liquid droplets entrained in the gas at the top outlet of the tower through interception, coalescence and other methods, to ensure the purity of the gas phase product.

[0046] Furthermore, the first bearing steel wire 23 and the first dividing steel wire 24 are fixedly installed on the lower side of the inner cavity of the packing frame 22. A Pall ring 29 is vertically placed on the first bearing steel wire 23, and the first dividing steel wire 24 is located on one side of the Pall ring 29 to limit the Pall ring 29, so that the Pall ring 29 is in a vertically stacked state. Then, other Pall rings 29 are scattered above the Pall ring 29 on the first bearing steel wire 23 to below the second bearing steel wire 25. The second bearing steel wire 25 is located in the middle of the inner cavity of the packing frame 22 and its length is greater than the length of the inner cavity of the packing frame 22. A placement groove adapted to the second bearing steel wire 25 is opened in the inner cavity of the packing frame 22 for placing the second bearing steel wire 25. The two ends of the second bearing steel wire 25 are detachably connected to the holding steel wire 26, which is placed in the placement groove for easy handling by the user. Figure 14As shown, after the Pall rings 29 below the second supporting steel wire 25 are spread out, other Pall rings 29 are passed across the outer surface of the second supporting steel wire 25, and then the holding wire 26 is fixed to the second supporting steel wire 25. The wires are then placed into the inner cavity of the packing frame 22 through the placement groove, so that the spread Pall rings 29 contact the bottom of the Pall rings 29 on the outer surface of the second supporting steel wire 25. After the Pall rings 29 on the outer surface of the second supporting steel wire 25 are placed, the second supporting steel wire 25 contacts the top of the inner cavity of the Pall rings 29, as shown in the attached diagram. Figure 11 As shown, after the Pall rings 29 on the second bearing steel wire 25 are stacked, Pall rings 29 are continued to be scattered on it until below the third bearing steel wire 27. Then, other Pall rings 29 are placed vertically above the third bearing steel wire 27 in a vertical stacking state. The third bearing steel wire 27 is in contact with the packing frame 22. The limiting frame 33 is also provided with through holes 34 that are adapted to the holding steel wire 26, so that the holding steel wire 26 passes through the through holes 34. The top position of the packing frame 22 is lower than the top position of the mounting frame 21. The limiting frame 33 is placed above the mounting frame 21. Bolts 35 are also threaded at the four corners of the limiting frame 33 to fix the limiting frame 33 to the top of the mounting frame 21. By vertically placing Pall rings 29 on the upper and lower sides of the packing frame 22 so that its opening is in the same direction as the gas-liquid flow, and in conjunction with the scattered Pall rings 29 therein, this combination of stacking and scattering can make the gas and liquid fully contact each other, while reducing the gas and liquid flow pressure and improving the light removal effect.

[0047] More specifically, when polymer blockage occurs in the packing of the packing frame 22, in the prior art, because the packing is limited by the support plate and cover plate, it will cause the packing to collapse due to mutual compression under air pressure. However, in this invention, by arranging the Pall rings 29 such that they cross the second bearing wire 25, when the Pall rings 29 below the second bearing wire 25 are compressed, the Pall rings 29 on the second bearing wire 25 will have a stroke close to its inner diameter, while the Pall rings 29 below the third bearing wire 27 will compress it. When the upper Pall ring 29 is compressed, the Pall ring 29 on the third bearing steel wire 27 will also have the deformation stroke of the elastic element 3 under the deformation provided by the elastic element 3. In this way, when the packing is blocked and subjected to air pressure, it will move upward, providing time for discovery and cleaning, and avoiding direct compression between the packings and damage. It should be noted that a detachable wire mesh must be installed in the inner cavity of the limiting frame 33 to limit the Pall ring 29 above the third bearing steel wire 27 and prevent it from detaching from the packing frame 22 under the action of air pressure.

[0048] Example 2: Please refer to Figure 4 , Figure 12 and Figure 13The system also includes a flow-regulating component, which comprises a flow-regulating box 4 fixedly installed in the mounting frame 21 and a flow-regulating plate 41 fixedly connected above the flow-regulating box 4. The flow-regulating box 4 has a through groove 42 and a redistribution hole 43. Specifically, the flow-regulating plate 41 is inclined and located below the packing frame 22. When liquid falls downward through the packing frame 22, it is blocked by the flow-regulating plate 41, reducing its flow velocity. This allows the liquid to flow on the surface of the flow-regulating plate 41 and fall into its inner cavity through the through groove 42 on the upper surface of the flow-regulating box 4. Then, it falls through the redistribution hole 43 at the bottom of the flow-regulating box 4. Gas will come into contact with the liquid as it passes through the redistribution hole 43 and the through groove 42. As the gas continues to rise, it will come into contact with the bottom of the flow-regulating plate 41 and be blocked and guided by the flow-regulating plate 41. This allows the gas to come into contact with the liquid flowing on the surface of the adjacent flow-regulating plate 41, thereby increasing the gas-liquid contact time and contact frequency, and further improving the light removal effect.

[0049] Example 3: Please refer to Figure 12 and Figure 13 It also includes an atomizing component, which includes a first servo motor 5 disposed in a slow flow box 4, and a first rotating shaft 51 fixedly connected to the output shaft of the first servo motor 5. A dispersing component 52 is fixedly connected to the bottom of the first rotating shaft 51.

[0050] It also includes an adjustment component, which includes a transmission module mounted on the first rotating shaft 51 and a drive module fixed to the transmission module. Slider 67 is fixedly installed on both sides of the packing frame 22, and a groove 68 adapted to the slider 67 is provided on the cleaning box 2.

[0051] Specifically, based on Example 2, when the liquid drips down through the redistribution hole 43, the first servo motor 5 is activated to drive the first rotating shaft 51 to rotate, which in turn drives the dispersing component 52 to rotate, thereby dispersing the dripping liquid and atomizing it, so that the gas and liquid can fully contact each other and further improve the light removal effect.

[0052] Furthermore, when the first rotating shaft 51 rotates, it causes the transmission module to operate. The transmission module includes a first rotating wheel 6 fixedly sleeved on the outer surface of the first rotating shaft 51, a transmission belt 61 connected to the outer surface of the first rotating wheel 6, and a second rotating wheel 62 connected to the other side of the transmission belt 61. A second rotating shaft 63 is also fixedly installed in the middle of the second rotating wheel 62. The second rotating shaft 63 is movably connected to the bottom of the buffer box 4. When the first rotating shaft 51 rotates, it drives the first rotating wheel 6 to rotate, so that the first rotating wheel 6 drives the transmission belt 61. The transmission belt 61 drives the second rotating wheel 62 to rotate, which in turn drives the second rotating shaft 63 to rotate. The second rotating shaft 63 enables the drive module to operate. The drive module includes a drive block 64 fixedly installed at the bottom of the second rotating shaft 63 and a driven column 65 fixedly installed at the bottom of the packing frame 22. The driven column 65 is movably installed between itself and the buffer box 4. A ball bearing 66 is also movably installed at the bottom of the driven column 65 to reduce friction with the drive block 64. The upper side of the drive block 64 is lower at one end than the other. The high inclined plane allows the second rotating shaft 63 to rotate, driving the drive block 64 to rotate. The drive block 64 then drives the driven column 65 via the ball bearings 66. With the cooperation of the slider 67 and the groove 68, the driven column 65 causes the packing frame 22 to reciprocate up and down within the cavity of the mounting frame 21. This causes the Pall rings 29 within the packing frame 22 to vibrate and adjust their position. Compared to existing technologies, this invention, by adjusting the position of the Pall rings 29, can prevent the continuous accumulation of heavy polymer components in localized areas of the Pall rings 29, thus avoiding the formation of [unspecified problem]. Regarding the issue of blockage, it should be noted that the Pall rings 29 should not be placed too tightly, allowing for spacing between them to facilitate position adjustment. A rubber membrane can be placed on the outer surface of the slider 67 for cushioning, extending its service life. When the Pall rings 29 in the packing frame 22 vibrate, the stroke provided by the Pall rings 29, which traverse the surface of the second bearing steel wire 25 through the elastic element 3, can reduce the pressure between adjacent Pall rings 29 during vibration, while also allowing the Pall rings 29 to have greater adjustment space.

[0053] Example 4: Please refer to Figures 1 to 3It also includes a replacement component, which includes a second servo motor 7 fixedly installed on the cleaning tank 2, and a lead screw 71 fixedly connected to the output shaft of the second servo motor 7. The cleaning tank 2 is screwed to the lead screw 71, and a sealing plate 8 is provided in the cleaning tank 2. It also includes a dispensing port 9 provided on the cleaning tank 2, and a pump pipe 91 and a water outlet pipe 92 fixedly installed at the bottom of the cleaning tank 2. Specifically, in existing technologies, with prolonged light-duty removal operations, the polymer between the packing layers increases, requiring disassembly and cleaning. However, the light-duty removal operation must be stopped during cleaning, reducing efficiency. In this invention, two packing layers are used: one in the tower body 1 and the other in the cleaning tank 2. A sealing plate 8 with a sealing ring is movably positioned at the separation point between the cleaning tank 2 and the tower body 1, sealing and isolating the passage between them. Furthermore, a deformable sealing gasket is provided at the contact point between the sealing plate 8 and the lead screw 71, adapting to the thread of the lead screw 71 to improve the sealing effect. During operation, the sealing plate 8 is positioned using a positioning bolt on its outer side. When cleaning the packing is required, the bolt is released... In addition to positioning the sealing plate 8, the channel between the tower body 1 and the cleaning box 2 is opened. The second servo motor 7 is started to drive the lead screw 71 to rotate, so that the lead screw 71 drives the mounting frame 21 to move, thereby moving the used mounting frame 21 into the empty cleaning box 2, and moving the mounting frame 21 in the other cleaning box 2 into the tower body 1. Then, the sealing plate 8 is reset to seal and isolate the channel between the cleaning box 2 and the tower body 1. The bottom of the mounting frame 21 is also fixedly installed with a limit block 72. The inside of the cleaning box 2 is provided with a long groove that matches the limit block 72 to prevent the cleaning box 2 from rotating with the lead screw 71. The outer side of the sealing plate 8 is also provided with a handle 81 for easy pulling by the user. In this way, the light removal operation can continue when cleaning the packing, improving the light removal efficiency.

[0054] Furthermore, when cleaning the packing layer, first open the inlet 9 located on the lower and top sides of the cleaning tank 2, add the cleaning agent, then seal it, and introduce clean water through the pump pipe 91. Then, start the first servo motor 5 to drive the dispersing component 52 to rotate, so that the dispersing component 52 mixes the cleaning agent and clean water on the lower side. The first servo motor 5 drives the packing frame 22 to move up and down in the inner cavity of the mounting frame 21, mixing the cleaning agent and water on the upper side of the cleaning tank 2, making the cleaning agent and water mix more evenly and improving the cleaning effect. In addition, when the packing in the packing frame 22 vibrates and adjusts its position, the cleaning process can be more comprehensive, further improving the cleaning effect. After cleaning, drain the water through the outlet pipe 92. It should be noted that the Pall ring 29 mentioned above refers to Pall ring packing in general, not a single Pall ring.

[0055] A purification process for high-purity isooctane, using the high-purity isooctane purification system described above, includes the following steps:

[0056] S1: In use, liquid and gas are introduced through sprayer 12 and air inlet pipe 13 respectively, so that the gas and liquid are fully mixed and contacted in the packing frame 22 filled with Pall rings 29, so that the light component is transferred into the gas phase through the gas-liquid interface, while the heavy component is enriched in the liquid phase.

[0057] S2: Before the gas enters the packing frame 22, it will first pass through the slow flow box 4. The slow flow box 4 will retain the liquid, reduce its dripping speed, and increase the gas-liquid contact time. By starting the first servo motor 5 to make the dispersing component 52 rotate, the dripping liquid can be atomized, so that after the liquid passes through the packing frame 22, it will come into contact with the gas again to remove light.

[0058] S3: The first servo motor 5 will start the transmission module, which will cause the drive module to drive the packing frame 22 to move up and down and vibrate, thereby adjusting the position of the packing and reducing the probability of local polymer accumulation.

[0059] S4: By activating the second servo motor 7, different packing layers can be replaced, allowing the purification system to continue operating while cleaning the used packing.

[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 purification system for high-purity isooctane, comprising a tower body (1) and a conveying module disposed on the tower body (1) for introducing gas and liquid, wherein cleaning tanks (2) are also disposed on both sides of the tower body (1), wherein a packing layer is disposed in one of the cleaning tanks (2), and a packing layer is disposed in the tower body (1), characterized in that: It also includes, The packing layer includes an installation frame (21) disposed in the tower body (1), and a packing frame (22) disposed in the installation frame (21). A placement module includes a first bearing wire (23) and a first separating wire (24) disposed on the lower side of the packing layer, and a second bearing wire (25) disposed in the middle of the packing layer. A third bearing wire (27) and a second separating wire (28) are disposed on the upper side of the packing layer. A Pall ring (29) is vertically placed on the first bearing wire (23), and the first separating wire (24) is located on one side of the Pall ring (29) to facilitate the placement of the Pall ring. The Pall rings (29) are stacked vertically. The outer surface of the second bearing wire (25) passes through the Pall rings (29). The Pall rings (29) are placed vertically above the third bearing wire (27). The Pall rings (29) are scattered above the Pall rings (29) placed vertically on the first bearing wire (23) to below the second bearing wire (25). The scattered Pall rings (29) are in contact with the bottom of the Pall rings on the outer surface of the second bearing wire (25). The Pall rings (29) are scattered above the Pall rings (29) that pass through the second bearing wire (25) to below the third bearing wire (27). It also includes a limiting module, which includes an elastic member (3) fixedly connected to the second dividing steel wire (28) and a receiving steel wire (31) fixedly connected to the elastic member (3). A connecting steel wire (32) is fixedly connected to the receiving steel wire (31), and a limiting frame (33) is fixedly connected to the other end of the connecting steel wire (32). It also includes a dispensing port (9) set on the cleaning tank (2), and a pump pipe (91) and an outlet pipe (92) fixedly installed at the bottom of the cleaning tank (2). It also includes a replacement component, which includes a second servo motor (7) fixedly mounted on the cleaning box (2) and a lead screw (71) fixedly connected to the output shaft of the second servo motor (7). The cleaning box (2) is helically connected to the lead screw (71), and the lead screw (71) is used to drive the mounting frame (21) to move. A sealing plate (8) is provided in the cleaning box (2).

2. The purification system for high-purity isooctane according to claim 1, characterized in that: The conveying module includes a sprayer (12) disposed on the upper side of the tower body (1) and an air inlet pipe (13) disposed on the lower side of the tower body (1), and a gas distributor (14) is disposed on the air inlet pipe (13).

3. The purification system for high-purity isooctane according to claim 1, characterized in that: It also includes a flow control component, which includes a flow control box (4) fixedly installed in the mounting frame (21) and a flow control plate (41) fixedly connected above the flow control box (4). The flow control box (4) is provided with a through groove (42) and a redistribution hole (43).

4. The purification system for high-purity isooctane according to claim 3, characterized in that: It also includes an atomizing component, which includes a first servo motor (5) disposed in a slow flow box (4) and a first rotating shaft (51) fixedly connected to the output shaft of the first servo motor (5), and a dispersing component (52) fixedly connected to the bottom of the first rotating shaft (51).

5. The purification system for high-purity isooctane according to claim 4, characterized in that: It also includes an adjustment assembly, which includes a transmission module mounted on the first rotating shaft (51) and a drive module fixed to the transmission module. Slider blocks (67) are fixedly installed on both sides of the packing frame (22). The cleaning box (2) has a groove (68) adapted to the slider (67). The transmission module includes a first rotating wheel (6) fixedly sleeved on the outer surface of the first rotating shaft (51), a transmission belt (61) connected to the outer surface of the first rotating wheel (6), and a second rotating wheel connected to the other side of the transmission belt (61). (62) A second rotating shaft (63) is also fixedly installed in the middle of the second rotating wheel (62). The second rotating shaft (63) is movably connected to the bottom of the slow flow box (4). The drive module includes a drive block (64) fixedly installed at the bottom of the second rotating shaft (63) and a driven column (65) fixedly installed at the bottom of the packing frame (22). The driven column (65) is movably installed between the slow flow box (4). A ball bearing (66) is also movably installed at the bottom of the driven column (65). The upper side of the drive block (64) is an inclined surface with one end lower than the other.

6. A purification process for high-purity isooctane, using the high-purity isooctane purification system described in claim 5, characterized in that: Includes the following steps: S1: When in use, liquid and gas are introduced through the sprayer (12) and the air inlet pipe (13) respectively, so that the gas and liquid are fully mixed and contacted in the packing frame (22) filled with Pall rings (29), so that the light components are transferred into the gas phase through the gas-liquid interface, while the heavy components are enriched in the liquid phase. S2: Before the gas enters the packing frame (22), it will pass through the slow flow box (4). The slow flow box (4) will retain the liquid, reduce its dripping speed, and increase the gas-liquid contact time. By starting the first servo motor (5) to make the dispersing component (52) rotate, the dripping liquid can be atomized, so that after the liquid passes through the packing frame (22), it will come into contact with the gas again to remove light. S3: The transmission module will be started by the first servo motor (5), which will cause the drive module to drive the packing frame (22) to move up and down and generate vibration, thereby adjusting the position of the packing and reducing the probability of local polymer accumulation. S4: By starting the second servo motor (7), different packing layers can be replaced, and the purification system can continue to operate when the used packing is cleaned.

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