Desulfurization device for hydrogen production

Abstract

The utility model provides a desulfurization device for hydrogen production, which adopts a polyethylene glycol dimethyl ether method (NHD method) to perform desulfurization operation, hydrogen containing sulfide prepared by coal water slurry hydrogen production is injected into a desulfurization tower through a gas inlet, and a water pump is started to pump out a polyethylene glycol dimethyl ether solution in a solvent box and send the polyethylene glycol dimethyl ether solution into a pipeline. Then the polyethylene glycol dimethyl ether solution enters the branch pipe and is finally sprayed out from the spray head, sulfur removal operation is conducted on hydrogen containing sulfide in the desulfurization tower, after sulfur removal is completed, the exhaust fan is started, the exhaust fan sucks the hydrogen subjected to sulfur removal in the desulfurization tower into the filter box through the exhaust pipe, and the hydrogen sequentially passes through the exhaust fan and the filter plate and then enters the filter box through the filter plate. The hydrogen is blown by the exhaust fan to remove moisture, then the moisture is further removed by the drying agent in the filter plate, and finally the hydrogen is discharged from the gas outlet to enter the next process, so that the equipment not only performs sulfur removal work on the hydrogen containing sulfide, but also further performs moisture removal work on the hydrogen, and the purity of the hydrogen is better.

Description

Technical Field

[0001] This utility model belongs to the field of hydrogen production desulfurization technology, and in particular relates to a desulfurization device for hydrogen production. Background Technology

[0002] Hydrogen production from coal-water slurry involves mixing coal, water, and chemical additives in a specific ratio, processing the mixture into a slurry, and then using this slurry as raw material. Hydrogen is produced through specific chemical reactions or pyrolysis processes. These processes may include coal pyrolysis, gasification, and reforming, ultimately yielding hydrogen. However, sulfides are also produced, which are hazardous and require desulfurization treatment.

[0003] Existing equipment directly or indirectly discharges sulfides, which increases the hazards of sulfides, poses safety risks to production, and causes losses. Therefore, this utility model proposes a desulfurization device for hydrogen production to solve the above problems. Utility Model Content

[0004] This invention provides a desulfurization device for hydrogen production, which aims to solve the problems mentioned in the background art.

[0005] This utility model is implemented as follows: a desulfurization device for hydrogen production, including a desulfurization tower and a filter assembly;

[0006] The desulfurization tower includes a solvent tank, and a water pump is installed on the top of the solvent tank. One end of the water pump is connected to the internal space of the solvent tank, and the other end is connected to a pipe. The pipe is connected to a branch pipe, which is located in the internal space of the desulfurization tower and is equipped with a nozzle.

[0007] The filtration assembly includes a filter box, which is connected to the interior of the desulfurization tower via an exhaust pipe. The filter box is provided with an exhaust fan and a filter plate from left to right.

[0008] Preferably, the solvent tank is filled with a polyethanol dimethyl ether solution.

[0009] Preferably, the desulfurization tower has an air inlet near the bottom.

[0010] Preferably, there are multiple branch pipes, and the multiple branch pipes are distributed at intervals along the vertical direction.

[0011] Preferably, there are multiple nozzles, and the multiple nozzles are distributed at intervals along the extension direction of the branch pipe.

[0012] Preferably, the filter plate is filled with a desiccant.

[0013] Preferably, the filter box has an air outlet on the side away from the air extraction pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The desulfurization process employs the polyethanol dimethyl ether (NHD) method. Hydrogen containing sulfides, produced from coal-water slurry, is injected into the desulfurization tower through the inlet. A water pump draws the polyethanol dimethyl ether solution from the solvent tank into a pipeline, then into a branch pipe before being sprayed out from a nozzle to remove sulfur from the hydrogen containing sulfides. After desulfurization, an exhaust fan is activated, drawing the desulfurized hydrogen into a filter box via an exhaust pipe. The hydrogen passes through the exhaust fan and filter plates, where the exhaust fan removes moisture, and the filter plates further remove moisture through a desiccant. Finally, the hydrogen is discharged from the outlet to the next process. This equipment not only desulfurizes the hydrogen containing sulfides but also removes moisture, resulting in higher hydrogen purity. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0017] Figure 2 This is a front view of the overall structure of this utility model;

[0018] Figure 3 This is a front sectional view of the overall structure of this utility model.

[0019] In the picture:

[0020] 1. Desulfurization tower; 11. Solvent tank; 12. Water pump; 13. Pipeline; 14. Branch pipe; 15. Nozzle; 16. Air inlet;

[0021] 2. Filter assembly; 21. Filter box; 22. Exhaust pipe; 23. Exhaust fan; 24. Filter plate; 25. Air outlet. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0023] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0024] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figures 1 to 3 This utility model provides a technical solution: a desulfurization device for hydrogen production, including a desulfurization tower 1 and a filter assembly 2; the desulfurization tower 1 includes a solvent tank 11, a water pump 12 is provided on the top of the solvent tank 11, one end of the water pump 12 is connected to the internal space of the solvent tank 11, and the other end is connected to a pipe 13, the pipe 13 is connected to a branch pipe 14, the branch pipe 14 is located in the internal space of the desulfurization tower 1, and a nozzle 15 is provided on the branch pipe 14; the filter assembly 2 includes a filter box 21, the filter box 21 is connected to the inside of the desulfurization tower 1 through an exhaust pipe 22, and the filter box 21 is provided with an exhaust fan 23 and a filter plate 24 from left to right.

[0028] In this embodiment, the desulfurization operation is carried out using the polyethanol dimethyl ether (NHD) method. Hydrogen containing sulfides, produced from coal-water slurry, is injected into the desulfurization tower 1 through inlet 16. Pump 12 is started to extract the polyethanol dimethyl ether solution from solvent tank 11 and send it into pipe 13. The polyethanol dimethyl ether solution then enters branch pipe 14 and is finally sprayed out from nozzle 15 to desulfurize the hydrogen containing sulfides in the desulfurization tower 1. After desulfurization, exhaust fan 23 is started. Exhaust fan 23 draws the desulfurized hydrogen from the desulfurization tower 1 into filter box 21 through exhaust pipe 22. The hydrogen passes through exhaust fan 23 and filter plate 24 sequentially. Moisture is removed by the airflow from exhaust fan 23, and further moisture is removed by the desiccant in filter plate 24. Finally, it is discharged from outlet 25 to enter the next process. This equipment not only desulfurizes the hydrogen containing sulfides but also further removes moisture, resulting in better hydrogen purity.

[0029] Furthermore, the solvent tank 11 is filled with a polyethanol dimethyl ether solution.

[0030] In this embodiment, the solvent tank 11 is filled with a polyethanol dimethyl ether solution, and the polyethanol dimethyl ether method (NHD method) is used to desulfurize the sulfides.

[0031] For further details, please refer to Figure 1 The desulfurization tower 1 has an air inlet 16 near the bottom.

[0032] In this embodiment, hydrogen gas containing sulfides is injected into the desulfurization tower 1 through the inlet 16 for desulfurization.

[0033] For further details, please refer to Figure 3 Multiple branch pipes 14 are provided, and the multiple branch pipes 14 are distributed at intervals along the vertical direction; multiple nozzles 15 are provided, and the multiple nozzles 15 are distributed at intervals along the extension direction of the branch pipes 14.

[0034] In this embodiment, multiple branch pipes 14 are provided, and the multiple branch pipes 14 are distributed at intervals along the vertical direction; multiple nozzles 15 are provided, and the multiple nozzles 15 are distributed at intervals along the extension direction of the branch pipes 14. In this way, the polyvinyl alcohol dimethyl ether solution will come into more complete contact with the hydrogen gas containing sulfides, and can better remove sulfur.

[0035] Furthermore, the filter plate 24 is filled with a desiccant.

[0036] In this embodiment, the filter plate 24 is filled with a desiccant, which can be a chemical desiccant, such as calcium sulfate and calcium chloride, or a physical desiccant, such as silica gel and activated alumina.

[0037] For further details, please refer to Figure 3 The filter box 21 has an air outlet 25 on the side away from the air extraction pipe 22.

[0038] In this embodiment, the function of the outlet 25 is to allow the hydrogen gas that has been desulfurized and dried to be discharged into the next process.

[0039] The working principle and usage process of this utility model are as follows: Desulfurization is performed using the polyethanol dimethyl ether (NHD) method. Hydrogen containing sulfides, produced from coal-water slurry, is injected into the desulfurization tower 1 through inlet 16. Pump 12 is started to extract the polyethanol dimethyl ether solution from solvent tank 11 and send it into pipeline 13. The polyethanol dimethyl ether solution then enters branch pipe 14 and is finally sprayed out from nozzle 15 to desulfurize the hydrogen containing sulfides in the desulfurization tower 1. After desulfurization is completed, the system is started... The exhaust fan 23 draws the hydrogen gas, which has been desulfurized by the desulfurization tower 1, into the filter box 21 through the exhaust pipe 22. The hydrogen gas passes through the exhaust fan 23 and the filter plate 24 in sequence. The hydrogen gas will have its moisture removed by the air blown by the exhaust fan 23, and then the moisture will be further removed by the desiccant in the filter plate 24. Finally, it will be discharged from the outlet 25 to enter the next process. This equipment not only desulfurizes the hydrogen gas containing sulfur compounds, but also further removes moisture from the hydrogen gas, making the hydrogen gas purer.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A desulfurization device for hydrogen production, characterized in that: Includes a desulfurization tower (1) and a filter assembly (2); The desulfurization tower (1) includes a solvent tank (11), and a water pump (12) is provided on the top of the solvent tank (11). One end of the water pump (12) is connected to the internal space of the solvent tank (11), and the other end is connected to a pipe (13). The pipe (13) is connected to a branch pipe (14), which is located in the internal space of the desulfurization tower (1). A nozzle (15) is provided on the branch pipe (14). The filter assembly (2) includes a filter box (21), which is connected to the interior of the desulfurization tower (1) through an exhaust pipe (22). The filter box (21) is provided with an exhaust fan (23) and a filter plate (24) from left to right.

2. The desulfurization device for hydrogen production according to claim 1, characterized in that: The solvent tank (11) is filled with a polyethanol dimethyl ether solution.

3. The desulfurization device for hydrogen production according to claim 1, characterized in that: The desulfurization tower (1) has an air inlet (16) near the bottom.

4. A desulfurization device for hydrogen production according to claim 1, characterized in that: The branch pipe (14) is provided in multiple ways, and the multiple branch pipes (14) are distributed at intervals along the vertical direction.

5. A desulfurization device for hydrogen production according to claim 4, characterized in that: The nozzle (15) is provided in multiple ways, and the multiple nozzles (15) are distributed at intervals along the extension direction of the branch pipe (14).

6. A desulfurization device for hydrogen production according to claim 1, characterized in that: The filter plate (24) is filled with a desiccant.

7. A desulfurization device for hydrogen production according to claim 1, characterized in that: The filter box (21) has an air outlet (25) on the side away from the air extraction pipe (22).

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