Synthesis gas recycling device

Abstract

A kind of synthesis gas recycling device, it is related to low carbon olefin production field, including adsorption box, and the adsorption mechanism and condensing mechanism being arranged in adsorption box inside, adsorption net assembly includes net support and adsorption net, net support is pullably arranged in adsorption box, adsorption net is arranged in net support inside, adsorption net surface is provided with caustic soda particle and activated carbon particle, condensing mechanism is arranged at the gas outlet end of adsorption mechanism, including condensing box, cold plate, gas injection seat and gas collection seat, cold plate is arranged in condensing box inside, gas injection seat and gas collection seat are respectively arranged at the both ends of cold plate, the utility model is provided with adsorption net in adsorption box, adsorption net is attached caustic soda particle and activated carbon particle, remove carbon dioxide and part water in by-product, then through cold plate in condensing mechanism, excess water vapor and organic matter are thoroughly condensed, and impurities in by-product are sufficiently removed.

Description

Technical Field

[0001] This utility model relates to the field of low-carbon olefin production technology, and in particular to a synthesis gas recovery and utilization device. Background Technology

[0002] In the process of directly producing low-carbon olefins from syngas, when a rhodium catalyst is used, the reaction product system contains not only the target low-carbon olefins, but also a large amount of unreacted syngas (H2, CO) and by-products (CO2, H2O) and other large particulate organic impurities.

[0003] Existing recovery devices have the following shortcomings: the recovery rate of carbon dioxide and water vapor byproducts in syngas is low. On the one hand, H2O and CO2 easily form carbonic acid solution under low temperature conditions, which not only corrodes the metal materials of conventional separation equipment, but may also undergo complexation reaction with unreacted CO to generate methyl carbonate impurities that are difficult to remove, leading to blockage of the subsequent separation system. On the other hand, existing byproduct treatment technologies have obvious limitations. When using the traditional water washing method to remove CO2, energy consumption is high and raw materials are wasted. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to provide a syngas recovery and utilization device that can fully remove CO2 and H2O from by-products.

[0006] To achieve the above objectives, this utility model proposes a syngas recovery and utilization device, including an adsorption box, and an adsorption mechanism and a condensation mechanism disposed inside the adsorption box. The adsorption mechanism includes an adsorption mesh assembly disposed inside the adsorption box, the adsorption mesh assembly including a mesh support and an adsorption mesh. The mesh support is removably disposed inside the adsorption box, and the adsorption mesh is disposed inside the mesh support. Caustic soda particles and activated carbon particles are disposed on the surface of the adsorption mesh. The condensation mechanism is disposed at the gas outlet end of the adsorption mechanism and includes a condensation box, a cooling plate, a gas injection seat, and a gas collection seat. The gas inlet end of the condensation box is connected to the gas outlet end of the adsorption box. The cooling plate is disposed inside the condensation box, and the gas injection seat and gas collection seat are respectively disposed at both ends of the cooling plate.

[0007] Furthermore, an evaporator refrigerant pipe is installed through the cold guide plate, and a compressor, condenser and evaporator are installed outside the condenser box. The compressor, condenser and evaporator form a refrigeration cycle through the refrigerant pipe, and the evaporator refrigerant pipe is connected to the refrigerant inside the evaporator.

[0008] Furthermore, multiple cold-conducting plates are provided, which are parallel to each other and isolated from each other. Drainage holes are provided at the bottom of each cold-conducting plate, and both ends of each cold-conducting plate are connected to a gas injection seat and a gas collection seat, respectively.

[0009] Furthermore, the bottom of the mesh holder is provided with a hollowed-out base, and a handle is provided on one side of the mesh holder. A sealing ring is provided at the connection between the handle and the adsorption box.

[0010] Furthermore, a guide plate is provided above the adsorption net assembly, a top cover is provided on the top of the adsorption box, an air inlet is provided on the top of the top cover, the guide plate is located below the air inlet, a bottom plate is provided at the bottom of the adsorption box, the bottom plate has a bucket-shaped structure, an ash collection trough is provided at the bottom of the bottom plate, and a cover plate is provided at the bottom of the ash collection trough.

[0011] Furthermore, a gas transmission pipe is provided between the base plate and the condenser box, and an air inlet filter is provided at the air inlet end of the gas transmission pipe.

[0012] Beneficial effects: This utility model removes carbon dioxide and some water from the byproducts by setting an adsorption net in the adsorption box, on which caustic soda particles and activated carbon particles are attached. Then, the excess water vapor and organic matter are thoroughly condensed by the cooling plate in the condensation mechanism, thus fully removing impurities from the byproducts.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of a syngas recovery and utilization device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the syngas recovery and utilization device according to one embodiment of the present invention from another perspective; Figure 3 This is a schematic diagram of the syngas recovery and utilization device according to one embodiment of the present invention from another perspective; Figure 4 This is a front cross-sectional view of the adsorption mechanism in a syngas recovery and utilization device according to an embodiment of the present invention; Figure 5 This is a top cross-sectional view of the condensation mechanism in a syngas recovery and utilization device according to an embodiment of the present invention.

[0015] As shown in the figure: 1. Adsorption box; 11. Top cover; 12. Air inlet; 13. Support frame; 14. Base plate; 2. Condensation mechanism; 21. Compressor; 22. Condenser; 23. Condensation box; 24. Air outlet; 25. Gas collection seat; 251. Gas injection seat; 26. Evaporator; 261. Evaporator refrigerant pipe; 27. Cooling plate; 28. Drain hole; 3. Gas transmission pipe; 31. Air inlet filter; 4. Adsorption mechanism; 41. Guide plate; 42. Adsorption net assembly; 421. Net holder; 422. Adsorption net; 423. Base support; 424. Handle; 425. Sealing ring; 43. Ash collection trough; 44. Cover plate. Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0017] The syngas recovery and utilization device of this utility model embodiment will be described below with reference to the accompanying drawings.

[0018] like Figure 1 , Figure 4 , Figure 5 As shown, the syngas recovery and utilization device provided in this embodiment of the present invention includes an adsorption box 1, an adsorption mechanism 4 and a condensation mechanism 2 disposed inside the adsorption box 1. The bottom of the adsorption box 1 is provided with a support frame 13. The adsorption mechanism 4 includes an adsorption net assembly 42 disposed inside the adsorption box 1. The adsorption net assembly 42 includes a net holder 421 and an adsorption net 422. The net holder 421 is removably disposed inside the adsorption box 1. The adsorption net 422 is disposed inside the net holder 421. Caustic soda particles and activated carbon particles are disposed on the surface of the adsorption net 422.

[0019] The condensation mechanism 2 is located at the outlet end of the adsorption mechanism 4, and includes a condensation box 23, a cooling plate 27, a gas injection seat 251, and a gas collection seat 25. The inlet end of the condensation box 23 is connected to the outlet end of the adsorption box 1. The cooling plate 27 is located inside the condensation box 23. The gas injection seat 251 and the gas collection seat 25 are respectively located at both ends of the cooling plate 27.

[0020] Specifically, in use, the syngas recovery and utilization device of this application first sends the syngas requiring byproduct removal into the adsorption box 1. The syngas then passes through the adsorption net 422 for filtration. Because caustic soda particles and activated carbon particles are attached to the adsorption net 422, the caustic soda particles remove carbon dioxide and some water from the byproducts, while the activated carbon particles filter out large particulate matter. The syngas is then sent to the condenser 23, where the excess water vapor and organic matter are thoroughly condensed by the cooling plate 27, effectively removing impurities from the byproducts.

[0021] The pull-out mesh holder 421 facilitates the replacement of the adsorption mesh 422. The gas injection seat 251 and the gas collection seat 25 are respectively set at both ends of the cooling plate 27. The synthesis gas is finely separated and cooled through multiple cooling plates 27, so that the synthesis gas is cooled quickly and the cooling efficiency is improved.

[0022] In one embodiment of this utility model, such as Figure 5 As shown, an evaporator refrigerant pipe 261 is installed through the cold guide plate 27. A compressor 21, a condenser 22 and an evaporator 26 are installed outside the condenser box 23. The compressor 21, the condenser 22 and the evaporator 26 form a refrigeration cycle through the refrigerant pipe. The evaporator refrigerant pipe 261 is connected to the refrigerant in the evaporator 26.

[0023] Multiple cooling plates 27 are provided, and the multiple cooling plates 27 are parallel to each other and isolated from each other. Drainage holes 28 are provided at the bottom of the cooling plates 27. The two ends of the cooling plates 27 are connected to the gas injection seat 251 and the gas collection seat 25, respectively. The synthesis gas is diverted and transmitted to the cooling plates 27 through the gas injection seat 251, and the diverted synthesis gas is collected through the gas collection seat 25.

[0024] Specifically, the refrigerant circulates through the compressor 21, condenser 22 and evaporator 26, causing the refrigerant in the evaporator 26 to vaporize and absorb heat. The refrigerant cools the cold guide plate 27 through the evaporator refrigerant pipe 261. The syngas is separated by multiple parallel cold guide plates 27, which accelerates the cooling of the syngas. Water and high-melting-point organic matter in the byproducts of the syngas are condensed and liquefied, and discharged through the drain hole 28 at the bottom of the cold guide plate 27.

[0025] In one embodiment of this utility model, such as Figure 4 As shown, the bottom of the mesh holder 421 is provided with a hollowed-out base 423 to improve air permeability. A handle 424 is provided on one side of the mesh holder 421 to facilitate pulling out the mesh holder 421. A sealing ring 425 is provided at the connection between the handle 424 and the adsorption box 1 to ensure the sealing of the adsorption box 1 inside and out.

[0026] In one embodiment of this utility model, such as Figure 4As shown, a guide plate 41 is provided above the adsorption net assembly 42, and a top cover 11 is provided on the top of the adsorption box 1. An air inlet 12 is provided on the top of the top cover 11. The guide plate 41 is located below the air inlet 12, so that the synthesis gas is vertically output to the adsorption net 422, making the airflow transmission more uniform and the filtration more uniform. A bottom plate 14 is provided at the bottom of the adsorption box 1. The bottom plate 14 has a bucket-shaped structure. A dust collection trough 43 is provided at the bottom of the bottom plate 14 to accumulate large dust particles and prevent them from being transferred to the gas transmission pipe 3. A cover plate 44 is also provided at the bottom of the dust collection trough 43 to facilitate the transfer of dust in the dust collection trough 43.

[0027] In one embodiment of this utility model, such as Figure 2 As shown, a gas transmission pipe 3 is provided between the base plate 14 and the condenser box 23. An air inlet filter 31 is provided at the air inlet end of the gas transmission pipe 3 to prevent dust from entering the gas transmission pipe 3.

[0028] To clearly illustrate the above embodiments, refer to Figures 1-5 The specific working principle of the syngas recovery and utilization device of this utility model is as follows: When using the syngas recovery and utilization device of this application, the syngas that needs to be degraded as a byproduct is first sent into the adsorption box 1 through the air inlet 12. Then the syngas is filtered through the adsorption net 422. After being filtered by the caustic soda particles and activated carbon particles attached to the adsorption net 422, the caustic soda particles remove carbon dioxide and some water from the byproducts, and the activated carbon particles remove large particulate matter from the byproducts.

[0029] The synthesis gas is then sent into the condenser 23 through the gas transmission pipe 3. The refrigerant circulates through the compressor 21, condenser 22 and evaporator 26, causing the refrigerant in the evaporator 26 to vaporize and absorb heat. The refrigerant cools the cold guide plate 27 through the evaporator refrigerant pipe 261. The synthesis gas is separated by multiple parallel cold guide plates 27, which accelerates the cooling of the synthesis gas. The water and high melting point organic matter in the by-products of the synthesis gas are condensed and liquefied, and discharged through the drain hole 28 at the bottom of the cold guide plate 27. Finally, the clean synthesis gas is discharged through the gas outlet 24.

[0030] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A syngas recovery and utilization device, characterized in that, The device includes an adsorption box (1), an adsorption mechanism (4) and a condensation mechanism (2) disposed inside the adsorption box (1). The adsorption mechanism (4) includes an adsorption mesh assembly (42) disposed inside the adsorption box (1). The adsorption mesh assembly (42) includes a mesh holder (421) and an adsorption mesh (422). The mesh holder (421) is removably disposed inside the adsorption box (1). The adsorption mesh (422) is disposed inside the mesh holder (421). Caustic soda particles and activated carbon particles are disposed on the surface of the adsorption mesh (422). The condensation mechanism (2) is located at the outlet of the adsorption mechanism (4) and includes a condensation box (23), a cooling plate (27), a gas jet seat (251), and a gas collection seat (25). The inlet of the condensation box (23) is connected to the outlet of the adsorption box (1). The cooling plate (27) is located inside the condensation box (23). The gas jet seat (251) and the gas collection seat (25) are located at both ends of the cooling plate (27).

2. The syngas recovery and utilization device according to claim 1, characterized in that, An evaporator refrigerant pipe (261) is installed through the cold guide plate (27). A compressor (21), a condenser (22), and an evaporator (26) are installed outside the condenser box (23). The compressor (21), the condenser (22), and the evaporator (26) form a refrigeration cycle through the refrigerant pipe. The evaporator refrigerant pipe (261) is connected to the refrigerant inside the evaporator (26).

3. The syngas recovery and utilization device according to claim 1, characterized in that, Multiple cooling plates (27) are provided, and the multiple cooling plates (27) are parallel to each other and isolated from each other. A drainage hole (28) is provided at the bottom of the cooling plate (27). The two ends of the cooling plate (27) are respectively connected to the gas injection seat (251) and the gas collection seat (25).

4. The syngas recovery and utilization device according to claim 1, characterized in that, The bottom of the net holder (421) is provided with a hollowed-out base (423), and a handle (424) is provided on one side of the net holder (421). A sealing ring (425) is provided at the connection between the handle (424) and the adsorption box (1).

5. The syngas recovery and utilization device according to claim 1, characterized in that, A guide plate (41) is provided above the adsorption mesh assembly (42), a top cover (11) is provided on the top of the adsorption box (1), an air inlet (12) is provided on the top of the top cover (11), the guide plate (41) is located below the air inlet (12), a bottom plate (14) is provided at the bottom of the adsorption box (1), the bottom plate (14) is a bucket-shaped structure, an ash collection trough (43) is provided at the bottom of the bottom plate (14), and a cover plate (44) is also provided at the bottom of the ash collection trough (43).

6. The syngas recovery and utilization device according to claim 5, characterized in that, A gas transmission pipe (3) is provided between the base plate (14) and the condenser box (23), and an air inlet filter (31) is provided at the air inlet end of the gas transmission pipe (3).

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