Carbon dioxide to methane shift conversion apparatus
By optimizing the structure of the carbon dioxide to methane conversion equipment, the problems of equipment disassembly and maintenance were solved, the contact area between the catalyst and the rich liquid was increased, the reaction rate and duration were controlled, and the service life and efficiency of the equipment were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANNXI DINGJI ENERGY TECH CO LTD
- Filing Date
- 2026-04-01
- Publication Date
- 2026-07-21
AI Technical Summary
Existing carbon dioxide to methane conversion equipment cannot be quickly disassembled and maintained, the contact area between the catalyst and the rich liquid is insufficient, and the reaction rate and duration are difficult to control.
An equipment structure was designed, including a gas outlet device, a sealing cap, a liquid inlet pipe, a relay device, a flow slowing device, a circulation pipe, and a liquid outlet device. The flow slowing device slows down the flow velocity of the rich liquid, the flow equalization component increases the catalyst contact area, and the reaction rate and duration are controlled by the pull net component and the funnel structure.
It enables rapid disassembly and maintenance of the equipment, increases the contact area between the catalyst and the rich liquid, controls the reaction rate and duration, and improves the service life and reaction efficiency of the equipment.
Smart Images
Figure CN121944979B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of methane production technology, and in particular to a carbon dioxide-to-methane conversion and desorption equipment. Background Technology
[0002] Converting carbon dioxide from industrial flue gas into methane is a "waste-to-resource" approach that combines environmental benefits with energy strategy. The core advantages of this process are: environmentally, it significantly reduces greenhouse gas emissions and utilizes waste carbon dioxide as a resource; energy-wise, the generated methane, after processing, can be injected into existing natural gas pipelines, solving the problems of grid connection, consumption, and storage of renewable energy power generation, and providing clean fuel; economically, with technological advancements and the improvement of the carbon trading market, this coupled process is expected to become profitable, providing a low-carbon or even negative-carbon sustainable development path for industrial sectors that struggle to reduce emissions.
[0003] For example, CN116078301B describes a single-atom fluid-driven carbon dioxide methanation conversion system and its usage method. This system utilizes a thermoelectric coupling effect to generate charge-driven hydrolysis to produce hydrogen, and then catalyzes the methanation of carbon dioxide under mild conditions. The single-atom fluid without carbon dioxide is referred to as a lean solution after the addition of an absorbent and an activator, while the single-atom fluid rich in carbon dioxide is referred to as a rich solution. The process of converting the lean solution to a rich solution by absorbing carbon dioxide is a pre-process of the carbon dioxide to methane desorption conversion process. When the rich solution flows into the desorption conversion tower, the carbon dioxide-rich single-atom fluid desorbs carbon dioxide. Subsequently, during the temperature change of the single-atom fluid solvent, a charge is generated. This charge catalyzes the water in the single-atom fluid solvent, electrolyzing it to produce hydrogen. The hydrogen and carbon dioxide are then catalytically converted to methane under the charge-driven action of the single-atom fluid.
[0004] Existing carbon dioxide to methane desorption and conversion equipment generally employs integrated high-tower units. This integrated approach makes effective and rapid cleaning and maintenance impossible during operation, significantly reducing the equipment's lifespan. Furthermore, existing carbon dioxide to methane desorption and conversion equipment typically cannot reduce the descent rate of the solution or the contact time between the solution and the catalyst, thus failing to control the reaction rate. While the catalyst is usually placed at the bottom or middle of the equipment for easy replacement, this method does not further increase the contact area between the catalyst and the rich solution, nor does it improve reaction efficiency. Therefore, a carbon dioxide to methane desorption and conversion equipment is needed that facilitates internal cleaning and maintenance, controls the reaction rate and duration, and increases the contact area between the catalyst and the rich solution to address the shortcomings of existing carbon dioxide to methane production equipment. Summary of the Invention
[0005] The purpose of this invention is to provide a carbon dioxide to methane conversion device to solve the existing technical problems of how to achieve rapid disassembly and maintenance of the device, how to control the reaction rate and duration of the solution, and how to increase the contact area between the catalyst and the rich solution.
[0006] To address the aforementioned technical problems, the present invention adopts the following technical solution: a carbon dioxide to methane conversion device, comprising a gas outlet, a sealing cap, a liquid inlet pipe, a relay device, a slow-flow device, a circulation pipe, and a liquid outlet device; the gas outlet device is fixedly installed at the upper end of the uppermost slow-flow device; the sealing cap is fixedly installed at the front end of the slow-flow device; the liquid inlet pipe is fixedly installed horizontally around the uppermost relay device; six slow-flow devices and five relay devices are alternately fixedly installed vertically; the circulation pipe is fixedly installed horizontally around the lowermost relay device; and the liquid outlet device is fixedly installed... At the bottom of the slow-flow device; when the rich liquid enters the uppermost relay device from the inlet pipe, the rich liquid will flow downward under the action of gravity. When the rich liquid enters the slow-flow device, the slow-flow device will slow down the downward flow velocity of the rich liquid, so that the rich liquid comes into contact with the catalyst in the slow-flow device and converts part of the carbon dioxide in the rich liquid into methane. At this time, the rich liquid will become a desorption liquid containing oxidizing components. The methane gas and part of the rich liquid vapor will move upward to the gas outlet and be discharged. During the upward movement of the rich liquid vapor, the rich liquid vapor will also come into contact with the catalyst in the uppermost slow-flow device.
[0007] Furthermore, the air outlet device includes a lifting ring, an air outlet hood, and an air outlet interface; the lifting ring is fixedly installed on the side of the air outlet hood in a vertical direction; the air outlet interface is fixedly installed on the upper end of the air outlet hood; and the lower end of the air outlet hood is fixedly connected to the uppermost flow-slowing device.
[0008] Furthermore, the relay device includes a relay sleeve, a flow equalization component, and a relay bracket; the upper and lower ends of the relay sleeve are respectively fixedly connected to two flow-regulating devices; the flow equalization component is fixedly installed on the upper end of the relay bracket; and the relay bracket is fixedly installed on the inner wall of the relay sleeve.
[0009] Furthermore, the flow equalization assembly includes a heat equalization pipe, a heat equalization ring, a flow equalization support column, an impeller, a support frame, a side nozzle, and a spray sleeve; the heat equalization pipe is fixedly installed on the periphery of the heat equalization ring along the radial direction; the heat equalization pipe is also fixedly connected to the inner wall of the relay sleeve; the heat equalization ring is fixedly installed on the periphery of the flow equalization support column; the interiors of the heat equalization ring, the flow equalization support column, and the heat equalization pipe are filled with thermally conductive gel; the upper end of the impeller is rotatably connected to the lower end of the flow equalization support column; the support frame is fixedly installed on the periphery of the heat equalization ring along the radial direction; the lower end of the support frame is also fixedly connected to the upper end of the relay support; the side nozzle is fixedly installed on the side of the spray sleeve; the spray sleeve is fixedly installed on the lower end of the heat equalization ring.
[0010] Furthermore, the flow-regulating device includes a flow-regulating box, a first flow-regulating cylinder, a second flow-regulating cylinder, a pull-out assembly, a limiting assembly, a limiting guide rail, a rotary joint, a clamping bolt, a positioning bolt, a pull net assembly, a fixed drain plate, and a movable drain plate. The upper end of the flow-regulating box is fixedly connected to the second flow-regulating cylinder; the lower end of the flow-regulating box is fixedly connected to the first flow-regulating cylinder; the lower end of the first flow-regulating cylinder is fixedly connected to the upper end of the relay sleeve; the upper end of the second flow-regulating cylinder is fixedly connected to the lower end of the relay sleeve; the pull-out assembly is slidably installed inside the flow-regulating box in the horizontal direction; the limiting assembly is fixedly installed at the front end of the pull-out assembly by positioning bolts; the limiting guide rail is fixedly installed at the front end of the pull-out assembly; the rotary joint is rotatably connected inside the pull-out assembly; the clamping bolt is tightened vertically on the limiting assembly and the limiting guide rail; the pull net assembly is fixedly installed at the upper end of the pull-out assembly; the fixed drain plate is fixedly installed inside the pull-out assembly; the movable drain plate is slidably installed inside the pull-out assembly; a catalyst is filled between the pull net assembly and the fixed drain plate; and a sealing cap is fixedly installed at the front end of the pull-out assembly.
[0011] Furthermore, the pull-out assembly includes a pull-out support, a pull-out slide, a pull strap, a take-up shaft, a displacement groove, and a limiting groove; the pull-out support is fixedly installed at the front end of the pull-out slide; the pull-out slide is slidably installed inside the flow-retardant box in a horizontal direction; both ends of the pull strap are fixedly installed on the side of the pull-out assembly and the periphery of the take-up shaft, respectively; the take-up shaft is rotatably connected inside the pull-out slide; the front end of the take-up shaft is fixedly connected to the indexing joint; the displacement groove is fixedly installed inside the pull-out slide; the limiting groove is fixedly installed at the upper end of the pull-out slide in a transverse direction; and the sealing cover is fixedly installed at the front end of the pull-out support.
[0012] Furthermore, the limiting assembly includes a limiting slider and a limiting slide plate; the limiting slider is slidably installed inside the limiting guide rail in the lateral direction; when the clamping bolt is tightened inside the limiting slider, the limiting slider will clamp and lock with the limiting guide rail; the limiting slide plate is fixedly installed between the two limiting sliders; the limiting slide plate is fixedly installed at the front end of the pull-out support by positioning bolts.
[0013] Furthermore, the netting assembly includes an arc-shaped pull frame, a steel wire rope, a netting slider, an elastic rope, netting wire, and a netting disc; the arc-shaped pull frame is slidably installed inside the limiting groove in the transverse direction; the two ends of the steel wire rope are respectively fixedly installed on the upper end of the netting slider and the inner side of the arc-shaped pull frame; the netting slider is slidably installed on the netting wire in the transverse direction; the two ends of the elastic rope are respectively fixedly installed on the sides of the two netting sliders; the netting wire is fixedly installed inside the netting disc in the transverse direction; the netting disc is fixedly installed on the upper end of the pull-out slide.
[0014] Furthermore, the liquid dispensing device includes a liquid dispensing hood and a liquid dispensing interface; the upper end of the liquid dispensing hood is fixedly installed at the lower end of the lowest flow-slowing device; the liquid dispensing interface is fixedly installed at the lower end of the liquid dispensing hood.
[0015] Furthermore, the fixed leak plate is equipped with A first square hole; the fixed drain plate is fixedly installed inside the pull-out slide; the movable drain plate is provided with... A second square hole; the front end of the movable drain plate is also provided with a sliding bracket; the sliding bracket is slidably installed inside the limiting guide rail in the horizontal direction; when the sliding bracket is manually pulled forward, the sliding bracket will drive the movable drain plate forward, so that the first square hole and the second square hole intersect and form a new square through hole area; the movable drain plate is slidably installed inside the displacement groove; let the effective usable area of the fixed drain plate be... The side length of the square through-hole area formed by the intersection of the first and second square holes is... ; to fix the effective usable area of the drain plate and the side length of the square through-hole area The resistance score is calculated by substituting it into the resistance rating formula. The resistance rating formula is shown below:
[0016] ;
[0017] In the formula: Indicates the radius of the fixed drain plate. The value ranges from 359.5 mm to 360.5 mm; The value of is an integer greater than or equal to 61 and less than or equal to 81. The packing buffer coefficient is... The value range is between 1.05 and 1.24. The larger the value, the greater the packing density of the catalyst; This is the netting buffer coefficient. The value range is between 0.4 and 0.8. The larger the value, the greater the outward stretch of the arc-shaped support frame and the sliding block in the mesh assembly; For boundary correction coefficients, The value range is between 1.05 and 1.15; This indicates the radius of the second flow-retarding tube. The value ranges from 324.5 mm to 325.5 mm; The value ranges from 12 mm to 4.5 mm.
[0018] The beneficial effects of this invention compared with the prior art are: (1) The encapsulation cover is removed from the front end of the pull-out assembly, and then the pull-out support on the pull-out assembly is manually pulled forward. The pull-out support drives the pull-out slide to be pulled out from the inside of the slow flow box. Then the pull-out mesh assembly at the top of the pull-out slide is removed, which facilitates the cleaning and replacement of the fixed and movable drain plate. (2) When the pull-out slide is pulled out from the inside of the slow flow box, the arc-shaped pull bracket on the pull-out mesh assembly is manually pulled outward. The arc-shaped pull bracket drives the pull-out mesh slider to slide outward on the pull-out mesh wire through the steel wire pull rope. At this time, the elastic rope will also deform, so that there is no obstruction between the elastic rope and the pull-out mesh slider in the middle area of the pull-out mesh plate, which makes it convenient to replace and replenish the catalyst. (3) When the rich liquid enters the uppermost relay device from the inlet pipe, it forms a water column in the relay sleeve and falls freely downwards. The water column then reaches the flow equalization component, and the impact force of the water column drives the impeller to rotate. The centrifugal force generated by the rotating impeller drives the rich liquid to spread outwards from the side nozzle, thus converting the rich liquid water column into a dispersed water curtain, thereby increasing the contact area between the rich liquid and the catalyst. (4) When the rich liquid water curtain continues to fall downwards, it enters the second flow-slowing cylinder of the flow-slowing device. The rich liquid then comes into contact with the elastic rope and wire of the mesh assembly. At this time, the elastic rope and wire will hinder and slow down the rich liquid, so that the rich liquid water flow is dispersed and evenly covers the surface of the catalyst. At the same time, it will reduce the impact force of the rich liquid water flow on the catalyst surface and prevent local unevenness of the catalyst. (5) The rich liquid will continue to flow downward in the catalyst. When it flows to the upper surface of the fixed drain plate, only the square through-hole area formed by the first square hole and the second square hole can allow water to pass through. When the area of the square through-hole area is smaller, the speed at which the rich liquid flows out of the square through-hole area will be slower, thereby increasing the reaction time between the rich liquid and the catalyst. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall assembly structure of the present invention in its working state.
[0020] Figure 2 This is a schematic diagram of the air outlet device of the present invention.
[0021] Figure 3 This is a schematic diagram of the relay device of the present invention.
[0022] Figure 4 This is a schematic diagram of the flow equalization component of the present invention.
[0023] Figure 5 This is a schematic diagram of the flow-slowing device of the present invention. Figure 1 .
[0024] Figure 6 This is a schematic diagram of the flow-slowing device of the present invention. Figure 2 .
[0025] Figure 7 This is a schematic diagram of the pull-out assembly of the present invention.
[0026] Figure 8 This is a schematic diagram of the limiting component of the present invention.
[0027] Figure 9 This is a schematic diagram of the structure of the mesh assembly of the present invention.
[0028] Figure 10 This is a schematic diagram of the component structure for fixing the leak disc in this invention.
[0029] Figure 11 This is a schematic diagram of the component structure of the movable funnel of the present invention.
[0030] Figure 12 This is a schematic diagram of the liquid dispensing device of the present invention.
[0031] In the diagram: 1-Gas outlet device; 2-Sealing cap; 3-Liquid inlet pipe; 4-Relay device; 5-Flow regulating device; 6-Circulation pipe; 7-Liquid outlet device; 101-Lifting ring; 102-Gas outlet hood; 103-Gas outlet interface; 401-Relay sleeve; 402-Flow equalization assembly; 403-Relay support; 404-Heating pipe; 405-Heating collar; 406-Flow equalization support column; 407-Impeller; 408-Support frame; 409-Side nozzle; 410-Spray sleeve; 501-Flow regulating box; 502-First flow regulating cylinder; 503-Second flow regulating cylinder; 504-Pull-out assembly; 505-Limiting assembly; 506-Limiting guide rail; 507-Inverter joint; 508-Clamping bolt; 509-Positioning bolt; 510-Net pulling assembly; 511-Fixed drain tray; 512-Moving drain tray; 513-Pull-out support; 514-Pull-out slide; 515-Pull strap; 516-Rewinding shaft; 517-Displacement groove; 518-Limiting groove; 519-Limiting slider; 520-Limiting slide plate; 521-Arc-shaped pull bracket; 522-Steel wire pull rope; 523-Net pulling slider; 524-Elastic rope; 525-Net pulling wire; 526-Net pulling disc; 527-First square hole; 528-Sliding bracket; 529-Second square hole; 701-Liquid outlet hood; 702-Liquid outlet interface. Detailed Implementation
[0032] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0033] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0034] Figures 1 to 10 This is a preferred embodiment of the present invention.
[0035] like Figure 1 As shown, the gas outlet device 1 is fixedly installed at the upper end of the topmost flow-slowing device 5; the sealing cap 2 is fixedly installed at the front end of the flow-slowing device 5; the liquid inlet pipe 3 is fixedly installed horizontally around the topmost relay device 4; six flow-slowing devices 5 and five relay devices 4 are alternately fixedly installed vertically; the circulation pipe 6 is fixedly installed horizontally around the bottommost relay device 4; the liquid outlet device 7 is fixedly installed at the lower end of the bottommost flow-slowing device 5; when the rich liquid enters the topmost relay device from the liquid inlet pipe 3... When the rich liquid enters the slow-flow device 5, it will flow downward under the action of gravity. When the rich liquid enters the slow-flow device 5, the slow-flow device 5 will slow down the downward flow speed of the rich liquid, so that the rich liquid comes into contact with the catalyst in the slow-flow device 5 and converts part of the carbon dioxide in the rich liquid into methane. At this time, the rich liquid will become a desorption liquid containing oxidizing components. The methane gas and part of the rich liquid vapor will move upward to the gas outlet device 1 and be discharged. During the upward movement of the rich liquid vapor, the rich liquid vapor will also come into contact with the catalyst in the uppermost slow-flow device 5.
[0036] like Figure 2 As shown, in the air outlet device 1, the hanging ring 101 is fixedly installed on the side of the air outlet hood 102 in the vertical direction; the air outlet 103 is fixedly installed on the upper end of the air outlet hood 102; and the lower end of the air outlet hood 102 is fixedly connected to the uppermost flow control device 5.
[0037] like Figure 3 As shown, in the relay device 4, the upper and lower ends of the relay sleeve 401 are fixedly connected to two flow-regulating devices 5 respectively; the flow equalization component 402 is fixedly installed on the upper end of the relay bracket 403; the relay bracket 403 is fixedly installed on the inner wall of the relay sleeve 401.
[0038] like Figure 4 As shown, in the flow equalization assembly 402, the heat equalization pipe 404 is fixedly installed on the periphery of the heat equalization ring 405 along the radial direction of the heat equalization ring 405; the heat equalization pipe 404 is also fixedly connected to the inner wall of the relay sleeve 401; the heat equalization ring 405 is fixedly installed on the periphery of the flow equalization support 406; the interior of the heat equalization ring 405, the flow equalization support 406, and the heat equalization pipe 404 is filled with thermally conductive gel; the upper end of the impeller 407 is rotatably connected to the lower end of the flow equalization support 406; the support frame 408 is fixedly installed on the periphery of the heat equalization ring 405 along the radial direction of the heat equalization ring 405; the lower end of the support frame 408 is also fixedly connected to the upper end of the relay support 403; the side nozzle 409 is fixedly installed on the side of the spray sleeve 410; the spray sleeve 410 is fixedly installed on the lower end of the heat equalization ring 405.
[0039] like Figure 5 and Figure 6 As shown, in the flow-regulating device 5, the upper end of the flow-regulating box 501 is fixedly connected to the second flow-regulating cylinder 503; the lower end of the flow-regulating box 501 is fixedly connected to the first flow-regulating cylinder 502; the lower end of the first flow-regulating cylinder 502 is fixedly connected to the upper end of the relay sleeve 401; the upper end of the second flow-regulating cylinder 503 is fixedly connected to the lower end of the relay sleeve 401; the pull-out assembly 504 is slidably installed inside the flow-regulating box 501 in the horizontal direction; the limiting assembly 505 is fixedly installed at the front end of the pull-out assembly 504 by positioning bolts 509; and the limiting guide rail 506 is fixedly installed. At the front end of the pull-out assembly 504; the indexing joint 507 is rotatably connected inside the pull-out assembly 504; the clamping bolt 508 is tightened vertically on the limiting assembly 505 and the limiting guide rail 506; the pull net assembly 510 is fixedly installed at the upper end of the pull-out assembly 504; the fixed drain plate 511 is fixedly installed inside the pull-out assembly 504; the movable drain plate 512 is slidably installed inside the pull-out assembly 504; the space between the pull net assembly 510 and the fixed drain plate 511 is filled with catalyst; and the encapsulation cap 2 is fixedly installed at the front end of the pull-out assembly 504.
[0040] like Figure 7 As shown, in the pull-out assembly 504, the pull-out support 513 is fixedly installed at the front end of the pull-out slide 514; the pull-out slide 514 is slidably installed in the horizontal direction inside the flow buffer box 501; the two ends of the pull strap 515 are respectively fixedly installed on the side of the pull net assembly 510 and the periphery of the take-up shaft 516; the take-up shaft 516 is rotatably connected to the inside of the pull-out slide 514; the front end of the take-up shaft 516 is fixedly connected to the indexing joint 507; the displacement groove 517 is fixedly installed inside the pull-out slide 514; the limiting groove 518 is fixedly installed in the horizontal direction at the upper end of the pull-out slide 514; and the sealing cover 2 is fixedly installed at the front end of the pull-out support 513.
[0041] like Figure 8 As shown, in the limiting assembly 505, the limiting slider 519 is slidably installed inside the limiting guide rail 506 in the lateral direction; when the clamping bolt 508 is tightened inside the limiting slider 519, the limiting slider 519 will clamp and lock with the limiting guide rail 506; the limiting slide plate 520 is fixedly installed between the two limiting sliders 519; the limiting slide plate 520 is fixedly installed at the front end of the pull-out support 513 by the positioning bolt 509.
[0042] like Figure 9As shown, in the limiting assembly 505, the arc-shaped pull bracket 521 is slidably installed inside the limiting groove 518 in the transverse direction; the two ends of the steel wire pull rope 522 are respectively fixedly installed on the upper end of the net pulling slider 523 and the inner side of the arc-shaped pull bracket 521; the net pulling slider 523 is slidably installed on the net pulling wire 525 in the transverse direction; the two ends of the elastic rope 524 are respectively fixedly installed on the sides of the two net pulling sliders 523; the net pulling wire 525 is fixedly installed inside the net pulling disc 526 in the transverse direction; the net pulling disc 526 is fixedly installed on the upper end of the pull-out slide block 514.
[0043] like Figure 12 As shown, in the liquid outlet device 7, the upper end of the liquid outlet cover 701 is fixedly installed at the lower end of the lowest flow-slowing device 5; the liquid outlet port 702 is fixedly installed at the lower end of the liquid outlet cover 701.
[0044] like Figure 10 and Figure 11 As shown, the fixed drain plate 511 is equipped with A first square hole 527; a fixed drain plate 511 is fixedly installed inside the pull-out slide 514; a movable drain plate 512 is provided with a... A second square hole 529; a sliding bracket 528 is also provided at the front end of the movable drain plate 512; the sliding bracket 528 is slidably installed inside the limiting guide rail 506 in the horizontal direction; when the sliding bracket 528 is manually pulled forward, the sliding bracket 528 will drive the movable drain plate 512 to move forward, so that the first square hole 527 and the second square hole 529 intersect and form a new square through hole area; the movable drain plate 512 is slidably installed inside the displacement groove 517; let the effective usable area of the fixed drain plate 511 be... The side length of the square through-hole area formed by the alternation of the first square hole 527 and the second square hole 529 is... ;The effective usable area of the fixed drain plate 511 and the side length of the square through-hole area The resistance score is calculated by substituting it into the resistance rating formula. The resistance rating formula is shown below:
[0045] ;
[0046] In the formula: This indicates the radius of the fixed drain plate 511. The value ranges from 359.5 mm to 360.5 mm; The value of is an integer greater than or equal to 61 and less than or equal to 81. The packing buffer coefficient is... The value range is between 1.05 and 1.24. The larger the value, the greater the packing density of the catalyst; This is the netting buffer coefficient. The value range is between 0.4 and 0.8. The larger the value, the greater the degree to which the arc-shaped support 521 and the sliding block 523 in the netting assembly 510 are pulled outward; For boundary correction coefficients, The value range is between 1.05 and 1.15; This indicates the radius of the second flow-retarding tube. The value ranges from 324.5 mm to 325.5 mm; The value ranges from 12 mm to 4.5 mm.
[0047] Working principle of the invention: Figure 1 The invention provides the usage methods and corresponding scenarios. The attitude control of the carbon dioxide to methane desorption and conversion process is determined by the relay device 4, the slow flow device 5, and the liquid outlet device 7. The attitude of the liquid outlet device 7 is determined by the slow flow device 5, and the attitude of the relay device 4 is determined by the slow flow device 5. Therefore, the slow flow device 5 is the core of the carbon dioxide to methane desorption and conversion process.
[0048] Taking a preferred embodiment as an example, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11As shown, the sealing cover 2 is removed from the front end of the pull-out assembly 504. Then, the pull-out support 513 on the pull-out assembly 504 is manually pulled forward. The pull-out support 513 drives the pull-out slide 514 out of the interior of the flow control box 501. Then, the mesh assembly 510 at the upper end of the pull-out slide 514 is removed, which facilitates the cleaning and replacement of the fixed drain tray 511 and the movable drain tray 512. When the pull-out slide 514 is pulled out of the interior of the flow control box 501, the arc-shaped pull bracket 521 on the mesh assembly 510 is manually pulled outward. The arc-shaped pull bracket 521 drives the mesh slider 523 to slide outward on the mesh wire 525 through the steel wire pull rope 522. At this time, the elastic rope 524 will also deform, so that there is no elastic rope in the middle area of the mesh tray 526. The obstruction of 524 and the pull net slider 523 facilitates the replacement and replenishment of the catalyst. When the rich liquid enters the uppermost relay device 4 from the inlet pipe 3, it forms a water column in the relay sleeve 401 and falls freely downwards. The water column then reaches the flow equalization component 402, where the impact force drives the impeller 407 to rotate. The centrifugal force generated by the rotation of the impeller 407 causes some of the rich liquid to spread outwards from the side nozzle 409, while the remaining rich liquid flows downwards from the spray sleeve 410, thus converting the rich liquid water column into a dispersed water curtain, thereby increasing the contact area between the rich liquid and the catalyst. When the rich liquid reaches the flow equalization component 402, an external heat source heats the relay device 4 and the flow slowing device 5, and the heat equalization pipe 404 and the heat equalization sleeve... The thermally conductive gel inside the ring 405 and the flow equalization support 406 transfers heat from the relay sleeve 401 to the rich liquid, thus preheating the rich liquid. As the rich liquid water curtain continues to fall freely downwards, the rich liquid enters the second flow-slowing cylinder 503 of the flow-slowing device 5. Subsequently, the rich liquid comes into contact with the elastic rope 524 and the wire mesh 525 of the mesh assembly 510. At this time, the elastic rope 524 and the wire mesh 525 impede and slow down the rich liquid, causing the rich liquid flow to be dispersed and evenly cover the surface of the catalyst. At the same time, it also reduces the impact force of the rich liquid flow on the catalyst surface, preventing local unevenness of the catalyst. Subsequently, the rich liquid continues to flow downwards within the catalyst. When it flows to the upper surface of the fixed drain plate 511, only the first square hole 527 and the second... Only when the two square holes 529 are staggered can the square through-hole area be formed to allow water to pass through. The smaller the area of the square through-hole area, the slower the flow of the rich liquid water from the square through-hole area will be, thereby increasing the reaction time of the rich liquid and the catalyst. After removing the encapsulation cover 2, manually loosen the clamping bolt 508 so that the limiting slider 519 on the limiting component 505 loses its clamping function on the limiting guide rail 506 and the sliding bracket 528. At this time, manually drive the sliding bracket 528 on the moving drain plate 512 to slide forward in the limiting guide rail 506 and the limiting groove 518, so that the first square hole 527 and the second square hole 529 are staggered and form square through-hole areas of different sizes. The relay bracket 403 is used for the fixed installation of the support frame 408.The first and second flow-retarding cylinders 502 and 503 are used for the flow of the rich liquid. When the amount of rich liquid entering the inlet pipe 3 is small, the indexing joint 507 is manually rotated. The indexing joint 507 drives the winding shaft 516 to rotate. The winding shaft 516 drives the arc-shaped puller 521 to slide laterally outward in the limiting groove 518 through the pull belt 515. This causes the pull net slider 523 and the elastic rope 524 to slide outward on the pull net wire 525, so that the middle area of the pull net disc 526 is not blocked by the elastic rope 524 and the pull net slider 523. At this time, the rich liquid water flow will quickly come into contact with the catalyst and push the sliding support 528 inward, so that the area of the square through hole area is at its maximum, increasing the overall downward speed of the rich liquid. The positioning bolt 509 on the limiting slide plate 520 is used to position the limiting slide plate 520.
[0049] like Figure 2 and Figure 12 As shown, the gas outlet 103 at the upper end of the gas outlet hood 102 is used for the discharge of methane gas and carbon dioxide gas; the lifting ring 101 is used for the hoisting of the entire device; the liquid outlet hood 701 is used for the discharge of the solution after the reaction at the liquid outlet 702; and the circulation pipe 6 is used for the injection of hot circulating water.
[0050] This invention is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort are within the protection scope of this invention.
Claims
1. A carbon dioxide to methane conversion device, comprising a gas outlet (1), a sealing cap (2), a liquid inlet pipe (3), a relay device (4), a slow-flow device (5), a circulation pipe (6), and a liquid outlet device (7), characterized in that: The gas outlet device (1) is fixedly installed at the upper end of the top-end slow-flow device (5); the sealing cap (2) is fixedly installed at the front end of the slow-flow device (5); the liquid inlet pipe (3) is fixedly installed in the horizontal direction around the top-end relay device (4); the six slow-flow devices (5) and the five relay devices (4) are alternately fixedly installed in the vertical direction; the circulation pipe (6) is fixedly installed in the horizontal direction around the bottom-end relay device (4); the liquid outlet device (7) is fixedly installed at the lower end of the bottom-end slow-flow device (5); when the rich liquid enters the top-end relay device (4) from the liquid inlet pipe (3), the rich liquid will flow downward under the action of gravity. When the rich liquid enters the slow-flow device (5), the slow-flow device (5) will slow down the downward flow speed of the rich liquid. This allows the rich liquid to contact the catalyst within the slow-flow device (5), converting some of the carbon dioxide in the rich liquid into methane. At this point, the rich liquid becomes a desorption liquid containing oxidizing components. The methane gas and some of the rich liquid vapor move upwards to the outlet device (1) and are discharged. During the upward movement of the rich liquid vapor, it also contacts the catalyst within the uppermost slow-flow device (5). The relay device (4) includes a relay sleeve (401), a flow equalization component (402), and a relay support (403). The upper and lower ends of the relay sleeve (401) are fixedly connected to the two slow-flow devices (5) respectively. The flow equalization component (402) is fixedly installed on the upper end of the relay support (403). The relay support (403) is fixedly installed on the relay sleeve (401). On the inner wall of the device; the flow control device (5) includes a flow control box (501), a first flow control cylinder (502), a second flow control cylinder (503), a pull-out assembly (504), a limiting assembly (505), a limiting guide rail (506), a rotation joint (507), a clamping bolt (508), a positioning bolt (509), a pull net assembly (510), a fixed drain plate (511), and a movable drain plate (512); the upper end of the flow control box (501) is fixedly connected to the second flow control cylinder (503); the lower end of the flow control box (501) is fixedly connected to the first flow control cylinder (502); the lower end of the first flow control cylinder (502) is fixedly connected to the upper end of the relay sleeve (401); the upper end of the second flow control cylinder (503) is fixedly connected to the lower end of the relay sleeve (401). Fixed connection; the pull-out assembly (504) is slidably installed inside the flow buffer box (501) in the horizontal direction; the limiting assembly (505) is fixedly installed at the front end of the pull-out assembly (504) by the positioning bolt (509); the limiting guide rail (506) is fixedly installed at the front end of the pull-out assembly (504); the indexing joint (507) is rotatably connected inside the pull-out assembly (504); the clamping bolt (508) is tightened vertically on the limiting assembly (505) and the limiting guide rail (506); the pull net assembly (510) is fixedly installed at the upper end of the pull-out assembly (504); the fixed drain plate (511) is fixedly installed inside the pull-out assembly (504); the movable drain plate (512) is slidably installed inside the pull-out assembly (504);A catalyst is filled between the pull-out assembly (510) and the fixed drain plate (511); the encapsulation cap (2) is fixedly installed at the front end of the pull-out assembly (504); the limiting assembly (505) includes a limiting slider (519) and a limiting slide plate (520); the limiting slider (519) is slidably installed inside the limiting guide rail (506) in the lateral direction; when the clamping bolt (508) is tightened inside the limiting slider (519), the limiting slider (519) will clamp and lock with the limiting guide rail (506); the limiting slide plate (520) is fixedly installed between the two limiting sliders (519); the limiting slide plate (520) is fixedly installed at the front end of the pull-out support (513) by the positioning bolt (509); the front end of the movable drain plate (512) is also provided with a sliding bracket (528); the sliding bracket (528) is slidably installed inside the limiting guide rail (506) in the horizontal direction.
2. The carbon dioxide to methane conversion and desorption equipment according to claim 1, characterized in that: The air outlet device (1) includes a lifting ring (101), an air outlet hood (102), and an air outlet port (103); the lifting ring (101) is fixedly installed on the side of the air outlet hood (102) in the vertical direction; the air outlet port (103) is fixedly installed on the upper end of the air outlet hood (102); the lower end of the air outlet hood (102) is fixedly connected to the uppermost slow flow device (5).
3. The carbon dioxide to methane conversion and desorption equipment according to claim 2, characterized in that: The flow equalization assembly (402) includes a heat equalization pipe (404), a heat equalization ring (405), a flow equalization support (406), an impeller (407), a support frame (408), a side nozzle (409), and a spray sleeve (410); the heat equalization pipe (404) is fixedly installed around the heat equalization ring (405) in the radial direction; the heat equalization pipe (404) is also fixedly connected to the inner wall of the relay sleeve (401); the heat equalization ring (405) is fixedly installed around the flow equalization support (406); the heat equalization ring (405) The interior of the flow equalization support (406) and the heat equalization pipe (404) is filled with thermally conductive gel; the upper end of the impeller (407) is rotatably connected to the lower end of the flow equalization support (406); the support frame (408) is fixedly installed on the periphery of the heat equalization ring (405) along the radial direction; the lower end of the support frame (408) is also fixedly connected to the upper end of the relay support (403); the side nozzle (409) is fixedly installed on the side of the spray sleeve (410); the spray sleeve (410) is fixedly installed on the lower end of the heat equalization ring (405).
4. The carbon dioxide to methane conversion and desorption equipment according to claim 3, characterized in that: The pull-out assembly (504) includes a pull-out support (513), a pull-out slide (514), a pull strap (515), a take-up shaft (516), a displacement groove (517), and a limiting groove (518); the pull-out support (513) is fixedly installed at the front end of the pull-out slide (514); the pull-out slide (514) is slidably installed in the horizontal direction inside the flow control box (501); both ends of the pull strap (515) are respectively fixedly installed on the pull net assembly (510). The sides and the periphery of the take-up shaft (516); the take-up shaft (516) is rotatably connected to the inside of the pull-out slide (514); the front end of the take-up shaft (516) is fixedly connected to the indexing joint (507); the displacement groove (517) is fixedly installed inside the pull-out slide (514); the limiting groove (518) is fixedly installed at the upper end of the pull-out slide (514) in the transverse direction; the sealing cover (2) is fixedly installed at the front end of the pull-out support (513).
5. The carbon dioxide to methane conversion and desorption equipment according to claim 4, characterized in that: The netting assembly (510) includes an arc-shaped puller (521), a steel wire rope (522), a netting slider (523), an elastic rope (524), netting steel wire (525), and a netting disc (526). The arc-shaped puller (521) is slidably installed inside the limiting groove (518) in the transverse direction. The two ends of the steel wire rope (522) are respectively fixedly installed on the upper end of the netting slider (523) and the inner side of the arc-shaped puller (521). The netting slider (523) is slidably installed on the netting steel wire (525) in the transverse direction. The two ends of the elastic rope (524) are respectively fixedly installed on the sides of the two netting sliders (523). The netting steel wire (525) is fixedly installed inside the netting disc (526) in the transverse direction. The netting disc (526) is fixedly installed on the upper end of the pull-out slide (514).
6. The carbon dioxide to methane conversion and desorption equipment according to claim 5, characterized in that: The liquid outlet device (7) includes a liquid outlet cover (701) and a liquid outlet port (702); the upper end of the liquid outlet cover (701) is fixedly installed at the lower end of the slow flow device (5) at the lowest end; the liquid outlet port (702) is fixedly installed at the lower end of the liquid outlet cover (701).
7. The carbon dioxide to methane conversion and desorption equipment according to claim 6, characterized in that: The fixed leak plate (511) is equipped with A first square hole (527); a fixed drain plate (511) is fixedly installed inside the pull-out slide (514); a movable drain plate (512) is provided with A second square hole (529); when the sliding bracket (528) is manually pulled forward, the sliding bracket (528) will drive the movable drain plate (512) to move forward, so that the first square hole (527) and the second square hole (529) intersect and form a new square through hole area; the movable drain plate (512) is slidably installed inside the displacement groove (517); let the effective usable area of the fixed drain plate (511) be The side length of the square through-hole area formed by the interlacing of the first square hole (527) and the second square hole (529) is... ;The effective usable area of the fixed drain plate (511) and the side length of the square through-hole area The resistance score is calculated by substituting it into the resistance rating formula. The resistance rating formula is shown below: ； In the formula: Indicates the radius of the fixed drain plate (511), The value ranges from 359.5 mm to 360.5 mm; The value of is an integer greater than or equal to 61 and less than or equal to 81. The packing buffer coefficient is... The value range is between 1.05 and 1.
24. The larger the value, the greater the packing density of the catalyst; This is the netting buffer coefficient. The value range is between 0.4 and 0.
8. The larger the value, the greater the degree to which the arc-shaped support (521) and the sliding block (523) in the mesh assembly (510) are pulled outward; For boundary correction coefficients, The value range is between 1.05 and 1.15; This indicates the radius of the second flow-retarding tube. The value ranges from 324.5 mm to 325.5 mm; The value ranges from 12 mm to 4.5 mm.