Purification system and purification process of high-purity isooctane

Abstract

The invention relates to the technical field of isooctane purification, in particular to a purification system and purification process of high-purity isooctane, which comprises a tower body and a conveying module arranged on the tower body and used for introducing gas and liquid, cleaning boxes are arranged on two sides of the tower body, a filler layer is arranged in the tower body, and the purification system further comprises a placing module, the Pall rings are vertically arranged on the upper side and the lower side of the packing frame, the Pall rings are arranged on the upper side and the lower side of the packing frame, the Pall rings are arranged on the first bearing steel wire and the first separating steel wire, and the second bearing steel wire is arranged in the middle of the packing layer. The Pall rings are arranged, the passing pressure of gas and liquid can be reduced, the light component removal effect is improved, the Pall rings are arranged and can move upwards when the packing is blocked and subjected to the action of air pressure, discovery time is provided for use, and the packing is prevented from being damaged due to direct mutual extrusion.

Description

Technical Field

[0001] The present invention relates to the technical field of isooctane purification, and particularly to a purification system and a purification process for high-purity isooctane. Background Art

[0002] The isooctane purification process is mainly achieved through processes such as fractionation, adsorption, and hydrogenation. The fractionation purification process is further divided into light component removal and heavy component removal. Among them, light component removal is mainly carried out through a light removal tower. The principle is that gas flows upward from the bottom of the tower and forms countercurrent contact with the downward flowing liquid. In the packing layer, the gas and liquid are mixed, 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 environment-friendly isooctane purification light removal tower, including a packing tower body. A box body is arranged inside the packing tower body. The box body is located between two packing layers. Both sides of the box body are fixedly connected to the inner walls on both sides of the packing tower body through connecting blocks. The periphery of the top surface of the box body is fixedly installed with inclined plates, and the outer periphery of the top of the inclined plates is in contact and cooperation with the inner wall of the packing tower body. A plurality of evenly distributed first liquid inlets are opened around the top surface of the box body, and two second liquid inlets are opened in the middle of the top surface of the box body. The two second liquid inlets are distributed left and right. An arc-shaped plate is arranged inside the box body. The outer periphery of the four sides of the arc-shaped plate is fixedly connected to the inner walls of the four sides of the box body. A first through hole is opened in the middle of the bottom inner wall of the arc-shaped plate. A first vertical pipe with an electromagnetic valve is fixedly installed on the inner wall of the first through hole. A float level switch is arranged at the upper part of one side of the box body. A second through hole is opened in the middle of the bottom of the box body. The inner wall of the second through hole is connected to a second vertical pipe through a sealing bearing. The bottom end of the second vertical pipe is fixedly installed with a cross-shaped connecting pipe. The second vertical pipe and the inside of the cross-shaped connecting pipe are internally connected. A plurality of evenly distributed spray heads are fixedly installed on the bottom edge of the cross-shaped connecting pipe. This application enables the cross-shaped connecting pipe to rotate, so that the liquid can be sprayed in all directions, and thus the liquid can be evenly sprayed on the packing layer at the bottom of the packing tower body. At the same time, through the rotation of the cross-shaped connecting pipe, the liquid and gas can be better mixed, further improving the light removal effect.

[0004] During the light component removal process, there are two paths for gas-liquid mixing. One is mixing in the packing layer, and the other is contact outside the packing layer. The above application makes the liquid and gas mix better through the rotation of the cross-shaped connecting pipe, that is, makes the contact outside the packing layer more sufficient. However, the contact mixing in the packing layer is the main light component removal path. The traditional packing layer stacks or scatters the packing between the support plate and the pressing plate. The stacking method will connect the gas ports of the packing, which can improve the gas-liquid passing rate, but it is easy to cause liquid channeling, resulting in insufficient gas-liquid contact. While scattering the packing, although it reduces the occurrence of channeling, it is easy to increase the air pressure between the packing layers and reduce the passing rate. In addition, as the light component removal process continues, the packing layer is easily blocked by the heavy component polymers and tar in the raw materials, further reducing the passing rate. Under the pressure provided by the air pressure, the packings are squeezed against each other, resulting in damage and deformation of the packings and collapse of the packing layer, affecting the light component removal effect. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a purification system and purification process for high-purity isooctane, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A purification system for high-purity isooctane includes a tower body and a conveying module provided on the tower body for introducing gas and liquid. Cleaning boxes are also provided on both sides of the tower body. A packing layer is provided in the tower body, and further includes:

[0007] A placement module, which includes a first load-bearing wire and a first separating wire provided on the lower side of the packing layer, and a second load-bearing wire provided in the middle of the packing layer. A third load-bearing wire and a second separating wire are provided on the upper side of the packing layer for arranging the packing, redistributing the gas and liquid when the conveying module introduces the gas and liquid into the packing layer, reducing the air pressure in the packing layer while improving the gas-liquid mixing effect.

[0008] Optionally, it further includes a limiting module. The limiting module includes an elastic member fixedly connected to the second separating wire, and a receiving wire fixedly connected to the elastic member. A connecting wire is fixedly connected to the receiving wire, and the other end of the connecting wire is fixedly connected to a limiting frame.

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

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

[0011] Optionally, it further includes a flow retardation component, which includes a flow retardation box fixedly installed in the installation frame, and a flow retardation plate fixedly connected above the flow retardation box. Through holes and redistribution holes are formed in the flow retardation box.

[0012] Optionally, it further includes an atomization component, which includes a first servo motor disposed in the flow retardation box, and a first rotating shaft fixedly connected to the output shaft of the first servo motor. A dispersion member is fixedly connected to the bottom of the first rotating shaft.

[0013] Optionally, it further includes an adjustment component, which includes a transmission module disposed on the first rotating shaft, and a driving module fixed to the transmission module. Sliders are fixedly installed on both sides of the packing frame, and sliding grooves adapted to the sliders are formed in the cleaning box.

[0014] Optionally, it further includes a replacement component, which includes a second servo motor fixedly installed on the cleaning box, and a lead screw fixedly connected to the output shaft of the second servo motor. The cleaning box is in screw connection with the lead screw, and a sealing plate is disposed in the cleaning box.

[0015] Optionally, it further includes a feeding port disposed on the cleaning box, and a pump water pipe and a water outlet pipe fixedly installed at the bottom of the cleaning box.

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

[0017] S1: During use, a liquid and a gas are respectively introduced through a sprayer and an intake pipe, so that the gas and the liquid are fully mixed and contacted in the packing frame filled with Pall rings, enabling light components to enter the gas phase through mass transfer at the gas-liquid interface, and the heavy components to be enriched in the liquid phase;

[0018] S2: Before the gas enters the packing frame, it will first pass through the flow retardation box. The flow retardation box will retain the liquid, reduce its dripping speed, and increase the gas-liquid contact time. By starting the first servo motor to rotate the dispersion member, the dripping liquid can be atomized, so that after the liquid passes through the packing frame, it will contact the gas again for light component removal;

[0019] S3: The first servo motor will start the transmission module, so that the driving module drives the packing frame to move up and down reciprocally to generate vibration, thereby adjusting the packing position and reducing the probability of local polymer accumulation;

[0020] S4: By starting the second servo motor, different packing layers can be replaced, enabling 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 box, making their through-holes have the same gas-liquid flow pattern, and cooperating with the Pall rings scattered therein, it can enable full contact between the gas and liquid while reducing the passing pressure of the gas and liquid, improving the light component removal effect. By arranging the Pall rings, when the packing is blocked and under the action of air pressure, it will move upward, providing a discovery time for use and avoiding direct mutual extrusion and damage between the packings.

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

[0023] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a complete disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Structural schematic of the present invention Figure 1 ;

[0025] Figure 2 Structural schematic of the present invention Figure 2 ;

[0026] Figure 3 Structural schematic diagram of the positional relationship between the replacement components and the installation frame of the present invention;

[0027] Figure 4 Structural schematic diagram of the inside of the packing box of the present invention;

[0028] Figure 5 Stereoscopic exploded structural schematic diagram of the installation frame, packing box and placement module of the present invention;

[0029] Figure 6 Stereoscopic exploded structural schematic diagram of the placement module and the limiting module of the present invention;

[0030] Figure 7 For the present invention Figure 6 Partial enlarged structural schematic diagram of point B therein;

[0031] Figure 8 Structural schematic diagram of the positional relationship between the placement module and the limiting module of the present invention;

[0032] Figure 9 Specific structural schematic of the placement module of the present invention Figure 1 ;

[0033] Figure 10 Specific structural schematic of the placement module of the present invention Figure 2 ;

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

[0035] Figure 12 It is a schematic diagram of the structure inside the installation frame of the present invention;

[0036] Figure 13 It is a schematic diagram of the positional relationship of the slow flow component, the atomization component and the adjustment component of the present invention;

[0037] Figure 14 For the present invention Figure 4 Schematic diagram of the local enlarged structure at A in the figure.

[0038] In the figure: 1, tower body; 11, demister; 12, sprinkler; 13, air inlet pipe; 14, gas distributor; 2, cleaning box; 21, installation frame; 22, stuffing frame; 23, first load-bearing steel wire; 24, first separation steel wire; 25, second load-bearing steel wire; 26, holding steel wire; 27, third load-bearing steel wire; 28, second separation steel wire; 29, ball ring; 3, elastic member; 31, receiving steel wire; 32, connecting steel wire; 33, limit frame; 34, through hole; 35, bolt; 4 , slow flow box; 41, slow flow plate; 42, through groove; 43, redistribution holes; 5, first servo motor; 51, first rotating shaft; 52, scattered parts; 6, first rotating wheel; 61, transmission belt; 62, second rotating wheel; 63, second rotating shaft; 64, driving block; 65, driven column; 66, ball bearing; 67, slider; 68, slide groove; 7, second servo motor; 71, screw; 72, limit block; 8, sealing plate; 81, handle; 9, delivery port; 91, pump water pipe; 92, outlet pipe. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

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

[0041] The placement module includes a first load-bearing wire 23 and a first partition wire 24 disposed on the lower side of the packing layer, and a second load-bearing wire 25 disposed in the middle of the packing layer. A third load-bearing wire 27 and a second partition wire 28 are disposed on the upper side of the packing layer, which are used to layout the packing. When the conveying module introduces gas-liquid into the packing layer, it redistributes the gas-liquid, reduces the air pressure in the packing layer, and improves the gas-liquid mixing effect at the same time.

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

[0043] 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. A gas distributor 14 is disposed 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, in use, liquid is introduced from the upper part of the tower body 1 through the sprayer 12, and gas is introduced from the lower part of the tower body 1 through the air inlet pipe 13, so that the gas-liquid contacts and mixes countercurrently. Among them, the sprayer 12 can be an atomizer or a rotary sprayer, so that the liquid is more evenly distributed. Cooperating with the gas distributor 14 to evenly distribute the gas can make the gas-liquid contact more fully and improve the light component removal effect. An eliminator 11 is also disposed on the upper side of the inner cavity of the tower body 1, which removes the tiny liquid droplets entrained in the gas at the top of the tower through interception, coalescence, etc., to ensure the purity of the gas-phase product;

[0046] Further, the first load-bearing wire 23 and the first partition wire 24 are fixedly installed on the lower side of the inner cavity of the packing frame 22. Pall rings 29 are vertically placed on the first load-bearing wire 23, and the first partition wire 24 is on one side of the Pall rings 29, which is used to limit the Pall rings 29 so that the Pall rings 29 are stacked vertically. Then, other Pall rings 29 are scattered above the Pall rings 29 on the first load-bearing wire 23 to the lower side of the second load-bearing wire 25. The second load-bearing wire 25 is in the middle of the inner cavity of the packing frame 22 and has a length greater than the length of the inner cavity of the packing frame 22. By opening a placement groove in the inner cavity of the packing frame 22 that is adapted to the second load-bearing wire 25 for placing the second load-bearing wire 25, both ends of the second load-bearing wire 25 are detachably connected with gripping wires 26, and the gripping wires 26 are in the placement groove, which is convenient for the user to hold. As shown in the appendix Figure 14As shown, after the ball rings 29 below the second load-bearing steel wire 25 are scattered, other ball rings 29 are passed across the outer surface of the second load-bearing steel wire 25, and then the holding wire 26 is fixed to the second load-bearing steel wire 25, and is placed into the inner cavity of the stuffing frame 22 through the placement groove, so that the scattered ball rings 29 are in contact with the bottom of the ball rings 29 on the outer surface of the second load-bearing steel wire 25. After the ball rings 29 on the outer surface of the second load-bearing steel wire 25 are placed, the second load-bearing steel wire 25 is in contact with the top of the inner cavity of the ball ring 29, as shown in the attached figure. Figure 11 As shown, after the ball rings 29 on the second load-bearing steel wire 25 are stacked, the ball rings 29 are continuously scattered thereon to below the third load-bearing steel wire 27, and then other ball rings 29 are vertically placed above the third load-bearing steel wire 27, in a vertical stacking state, the third load-bearing steel wire 27 is in active contact with the filling frame 22, and a through hole 34 adapted to the holding steel wire 26 is also provided on the limit frame 33, so that the holding steel wire 26 passes through the through hole 34, the top position of the filling frame 22 is lower than the top position of the installation frame 21, the limit frame 33 is placed above the installation frame 21, and bolts 35 are threadedly connected at the four corners of the limit frame 33 for fixing the limit frame 33 to the top of the installation frame 21, by vertically placing ball rings 29 on the upper and lower sides of the filling frame 22, so that the through opening is in the same direction as the gas-liquid flow direction, and the ball rings 29 scattered therein, such a combination of stacking and scattering can make the gas and liquid fully contact, while reducing the passing pressure of the gas and liquid, and improving the lightening effect;

[0047] More specifically, when the filler in the filler frame 22 is clogged with polymer, in the prior art, since the filler is limited by the support plate and the cover plate, the filler will be squeezed and collapsed under the action of air pressure. In the present invention, the ball ring 29 is arranged, wherein the ball ring 29 crosses the second load-bearing steel wire 25, and when the ball ring 29 below the second load-bearing steel wire 25 squeezes it, the ball ring 29 on the second load-bearing steel wire 25 will have a stroke close to its inner diameter, and the ball ring 29 below the third load-bearing steel wire 27 will squeeze it. When the upper ball ring 29 is squeezed, the ball ring 29 on the third load-bearing steel wire 27 will also have the deformation stroke of the elastic member 3 under the deformation provided by the elastic member 3. In this way, when the filler is blocked and subjected to the action of air pressure, it will move upward, providing time for discovery and cleaning, and avoiding damage caused by direct squeezing between the fillers. It should be noted that a detachable wire mesh must be provided in the inner cavity of the limit frame 33 to limit the ball ring 29 above the third load-bearing steel wire 27 to avoid it from detaching from the filler frame 22 under the action of air pressure.

[0048] Example 2: Please refer to Figure 4 , Figure 12 and Figure 13, further comprising a flow buffering component, the flow buffering component includes a flow buffering box 4 fixedly installed in the installation frame 21, and a flow buffering plate 41 fixedly connected above the flow buffering box 4. A through groove 42 and a redistribution hole 43 are formed in the flow buffering box 4. Specifically, the flow buffering plate 41 is in an inclined state and is located below the packing box 22. When the liquid falls downward through the packing box 22, the flow buffering plate 41 can block it, reduce its flow rate, so that the liquid flows on the surface of the flow buffering plate 41 and falls into its inner cavity through the through groove 42 formed on the upper surface of the flow buffering box 4, and then falls through the redistribution hole 43 formed at the bottom of the flow buffering box 4. The gas will contact the liquid when passing through the redistribution hole 43 and the through groove 42. As the gas continues to rise, it will contact the bottom of the flow buffering plate 41 and be blocked and guided by the flow buffering plate 41, so that the gas contacts the liquid flowing on the surface of the adjacent flow buffering plate 41, thereby increasing the gas-liquid contact time and contact frequency, and further improving the light component removal effect.

[0049] Embodiment 3: Please refer to Figure 12 and Figure 13 , further comprising an atomization component, the atomization component includes a first servo motor 5 disposed in the flow buffering box 4, and a first rotating shaft 51 fixedly connected to the output shaft of the first servo motor 5. A dispersing member 52 is fixedly connected to the bottom of the first rotating shaft 51.

[0050] Further comprising an adjustment component, the adjustment component includes a transmission module disposed on the first rotating shaft 51, and a driving module fixed to the transmission module. Sliders 67 are fixedly installed on both sides of the packing box 22, and sliding grooves 68 adapted to the sliders 67 are formed in the cleaning box 2.

[0051] Specifically, on the basis of Embodiment 2, when the liquid drips downward through the redistribution hole 43, starting the first servo motor 5 can drive the first rotating shaft 51 to rotate, so that the first rotating shaft 51 drives the dispersing member 52 to rotate, thereby dispersing the dripping liquid and atomizing it, enabling the gas and liquid to fully contact, and further improving the light component removal effect;

[0052] Further, when the first rotating shaft 51 rotates, the transmission module will operate. The transmission module includes a first runner 6 fixedly sleeved on the outer surface of the first rotating shaft 51, a transmission belt 61 transmission-connected to the outer surface of the first runner 6, and a second runner 62 transmission-connected to the other side of the transmission belt 61. A second rotating shaft 63 is fixedly installed in the middle of the second runner 62. The second rotating shaft 63 is movably connected to the bottom of the buffer tank 4. When the first rotating shaft 51 rotates, it will drive the first runner 6 to rotate, so that the first runner 6 drives the transmission belt 61, and the transmission belt 61 can drive the second runner 62 to rotate, so that the second runner 62 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 box 22. The driven column 65 is movably installed between the buffer tank 4. A ball 66 is also movably installed at the bottom of the driven column 65 to reduce the friction with the drive block 64. The upper side of the drive block 64 is an inclined surface with one end low and the other end high. When the second rotating shaft 63 rotates, it can drive the drive block 64 to rotate, so that the drive block 64 drives the driven column 65 through the ball 66. With the cooperation of the slider 67 and the chute 68, the driven column 65 drives the packing box 22 to reciprocate up and down in the inner cavity of the installation frame 21, so that the Pall rings 29 in the packing box 22 vibrate and adjust their positions. Compared with the prior art, by adjusting the positions of the Pall rings 29, the present invention can prevent the heavy-component polymer from continuously accumulating at local positions of the Pall rings 29 and causing blockage. It should be noted that when placing the Pall rings 29, they do not need to be too close, so that there is a gap between the Pall rings 29 to facilitate the adjustment of their positions. A rubber film can be provided on the outer surface of the slider 67 for buffering to extend its service life. When the Pall rings 29 in the packing box 22 vibrate, the stroke provided by the elastic member 3 passing through the Pall rings 29 on the surface of the second load-bearing wire 25 can reduce the pressure between adjacent Pall rings 29 during the vibration process, and at the same time enable the Pall rings 29 to have a larger adjustment space.

[0053] Embodiment 4: Please refer to Figures 1 to 3, further comprising a replacement component, the replacement component 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 helically connected to the lead screw 71, and a sealing plate 8 is arranged in the cleaning tank 2. It further includes a feeding port 9 arranged on the cleaning tank 2, and a pump water pipe 91 and a water outlet pipe 92 fixedly installed at the bottom of the cleaning tank 2. Specifically, in the prior art, with the long-term light-off operation, more and more polymers will accumulate between the packings, and it is necessary to disassemble the packings for cleaning. However, during the cleaning process, the light-off operation also needs to be stopped, which will reduce the light-off efficiency. In the present invention, by providing two packing layers, one is in the tower body 1 and the other is in the cleaning tank 2, and the sealing plate 8 with a sealing ring is movably arranged at the separation between the cleaning tank 2 and the tower body 1 to seal and isolate the channel between the cleaning tank 2 and the tower body 1. In addition, a sealing gasket with deformation performance is arranged at the position where the lower side of the sealing plate 8 contacts the lead screw 71, and the thread of the lead screw 71 is adapted through deformation to improve the sealing effect. When the sealing plate 8 is operating, positioning bolts need to be arranged on its outer side for positioning. When it is necessary to clean the packing, the positioning of the sealing plate 8 is released, the channel between the tower body 1 and the cleaning tank 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 tank 2, moving the mounting frame 21 in the other cleaning tank 2 into the tower body 1, and then resetting the sealing plate 8 to seal and isolate the channel between the cleaning tank 2 and the tower body 1 again. A limiting block 72 is fixedly installed at the bottom of the mounting frame 21, and a long groove adapted to the limiting block 72 is opened inside the cleaning tank 2 to prevent the cleaning tank 2 from rotating with the lead screw 71. A handle 81 is also arranged on the outer side of the sealing plate 8 for the convenience of the user to pull. In this way, the light-off operation can continue during the cleaning of the packing, improving the light-off efficiency;

[0054] Further, when cleaning the packing layer, first open the feeding ports 9 arranged on the lower side and the top of the cleaning tank 2, respectively put in the cleaning agent, then seal it, and pass clear water through the pump water pipe 91. After that, start the first servo motor 5 to drive the dispersing member 52 to rotate, so that the dispersing member 52 mixes the cleaning agent and the clear water on the lower side, and drive the packing frame 22 to reciprocate up and down in the inner cavity of the mounting frame 21 by the first servo motor 5 to mix the cleaning agent and the water on the upper side of the cleaning tank 2, making the mixing of the cleaning agent and the water more uniform and improving the cleaning effect. In addition, when the packing in the packing frame 22 vibrates and its position is adjusted, the cleaning process can be made more comprehensive, further improving the cleaning effect. After the cleaning is completed, drain the water through the water outlet pipe 92. It should be noted that the Pall rings 29 mentioned above generally refer to Pall ring packings, not a single Pall ring.

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

[0056] S1: During use, liquid and gas are respectively introduced through the sprayer 12 and the intake pipe 13, so that the gas and liquid are fully mixed and contacted in the packing box 22 filled with Pall rings 29, enabling the light components to enter the gas phase through mass transfer at the gas-liquid interface, while the heavy components are enriched in the liquid phase;

[0057] S2: Before the gas enters the packing box 22, it will first pass through the flow retardation box 4. The flow retardation box 4 is used to retain the liquid, reduce its dripping speed, and increase the gas-liquid contact time. By starting the first servo motor 5, the dispersing member 52 can be rotated to atomize the dripping liquid, so that after the liquid passes through the packing box 22, it can contact the gas again for light component removal;

[0058] S3: The first servo motor 5 will start the transmission module, causing the drive module to drive the packing box 22 to move up and down reciprocally to generate vibration, thereby adjusting the packing position and reducing the probability of local polymer accumulation;

[0059] S4: By starting the second servo motor 7, different packing layers can be replaced, enabling the purification system to continue operating during the cleaning of the used packing.

[0060] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-purity isooctane purification system, comprising a tower body (1) and a conveying module arranged on the tower body (1) for introducing gas and liquid, a cleaning box (2) is also arranged on both sides of the tower body (1), and a packing layer is arranged in the tower body (1), characterized in that: Also includes: The placing module comprises a first load-bearing steel wire (23) and a first separating steel wire (24) arranged at the lower side of the packing layer, and a second load-bearing steel wire (25) arranged in the middle of the packing layer. The upper side of the packing layer is provided with a third load-bearing steel wire (27) and a second separating steel wire (28) for arranging the packing. When the conveying module introduces gas and liquid into the packing layer, the gas and liquid are redistributed, thereby reducing the gas pressure in the packing layer and improving the gas-liquid mixing effect.

2. A high-purity isooctane purification system according to claim 1, characterized in that: The device also comprises a limit module, the limit module comprising an elastic member (3) fixedly connected to the second separating steel wire (28), and a receiving steel wire (31) fixedly connected to the elastic member (3), a connecting steel wire (32) fixedly connected to the receiving steel wire (31), and the other end of the connecting steel wire (32) fixedly connected to the limit frame (33).

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

4. A high-purity isooctane purification system according to claim 1, characterized in that: The packing layer comprises a mounting frame (21) arranged in the tower body (1), and a packing frame (22) arranged in the mounting frame (21).

5. A high-purity isooctane purification system according to claim 4, characterized in that: The invention also comprises a slow flow assembly, the slow flow assembly comprising a slow flow box (4) fixedly mounted in the mounting frame (21), and a slow flow plate (41) fixedly connected above the slow flow box (4), wherein the slow flow box (4) is provided with a through groove (42) and a redistribution hole (43).

6. A high-purity isooctane purification system according to claim 5, characterized in that: It also comprises an atomizing assembly, which comprises a first servo motor (5) arranged in a slow flow box (4), and a first rotating shaft (51) fixedly connected to an output shaft of the first servo motor (5), wherein a disintegrating member (52) is fixedly connected to the bottom of the first rotating shaft (51).

7. A high-purity isooctane purification system according to claim 6, characterized in that: The cleaning box (22) further comprises an adjusting assembly, wherein the adjusting assembly comprises a transmission module arranged on the first rotating shaft (51), and a driving module fixed to the transmission module. Slide blocks (67) are fixedly mounted on both sides of the filling frame (22), and a slide groove (68) adapted to the slide block (67) is provided on the cleaning box (2).

8. A high-purity isooctane purification system according to claim 1, characterized in that: The invention also comprises a replacement component, the replacement component comprising 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) being spirally connected to the lead screw (71), and a sealing plate (8) being arranged in the cleaning box (2).

9. A high-purity isooctane purification system according to claim 1, characterized in that: It also includes a delivery port (9) arranged on the cleaning box (2), and a water pump pipe (91) and a water outlet pipe (92) fixedly installed at the bottom of the cleaning box (2). A purification process for high-purity isooctane, using the high-purity isooctane purification system as described in any one of claims 1 to 9, characterized in that: The following steps are involved: 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 ball rings (29), so that the light component enters the gas phase through mass transfer at the gas-liquid interface, and the heavy component is enriched in the liquid phase; S2: Before the gas enters the filling frame (22), it first passes through the slow flow box (4), which retains the liquid, reduces its dripping speed, and increases the gas-liquid contact time. By starting the first servo motor (5) to rotate the scattering member (52), the dripping liquid can be atomized, so that after the liquid passes through the filling frame (22), it contacts the gas again to be de-lightened; S3: The transmission module is started by the first servo motor (5), so that the driving module drives the filling frame (22) to move up and down to generate vibration, thereby adjusting the position of the filling and reducing the probability of local accumulation of polymer; S4: By starting the second servo motor (7), different packing layers can be replaced, so that the purification system can continue to operate when the used packing is cleaned.

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