A hydrogen recovery device for liquid ammonia production

Abstract

This utility model belongs to the field of chemical technology, specifically relating to a hydrogen recovery device for liquid ammonia production. It includes a tank with an exhaust port and an inlet at the top and bottom, respectively. A liquid injection port and a liquid discharge port are also provided on the lower side of the tank. The lower part of the tank is filled with a catalyst solution, and a catalytic mechanism is installed inside the tank. Through the cooperation of the gas distribution component, partition plate, and atomizing processor in the catalytic mechanism, hydrogen can be effectively catalytically purified during recovery, removing any impurities that may be present in the hydrogen and increasing the reaction time between hydrogen and the catalyst, thus better meeting the needs of high-purity hydrogen recovery.

Description

Technical Field

[0001] This utility model belongs to the field of chemical technology, specifically relating to a hydrogen recovery device for liquid ammonia production. Background Technology

[0002] During the production of liquid ammonia, hydrogen-containing waste gas is generated. In order to reduce environmental pollution and recycle resources, the hydrogen-containing waste gas is often recycled. The most common recycling methods are to spray the catalyst or directly inject hydrogen into the catalyst to catalyze the hydrogen reaction and achieve purification. However, these methods have the drawbacks of short reaction time between hydrogen and catalyst. If the reaction time in the enclosed space is required, the length of the reaction space needs to be extended, which leads to excessive space requirements or the need for multiple purification processes. Utility Model Content

[0003] The purpose of this invention is to provide a hydrogen recovery device for liquid ammonia production, which solves the problems mentioned in the background art.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0005] A hydrogen recovery device for liquid ammonia production includes a tank body, with an exhaust port and an inlet port at the upper and lower ends of the tank body, respectively. A liquid injection port and a liquid discharge port are also provided on the lower side of the tank body. The lower side of the tank body is filled with a catalyst solution, and a catalytic mechanism is provided inside the tank body.

[0006] The catalytic mechanism consists of a gas distribution component, a partition plate, and an atomizing processor. The gas distribution component is located at the air inlet and extends into the tank. There are several partition plates, which are evenly distributed on the lower side of the tank. The atomizing processor is located on the upper side of the tank.

[0007] The atomizing processor is cylindrical in shape and completely fills the upper part of the tank. The atomizing processor is hollow and has several spiral channels on its side. The spiral channels all pass through the upper and lower ends of the atomizing processor. Several atomizing nozzles are provided in the spiral channels, and the atomizing nozzles are connected to the catalyst solution channel on the lower part of the tank.

[0008] The diameter of the partition plate matches the inner diameter of the tank, and the surface of the partition plate has a number of air holes evenly distributed.

[0009] The air distribution assembly consists of a main air pipe and several air distribution pipes. Each of the air distribution pipes is connected to the main air pipe's air passage, and the surface of each air distribution pipe is provided with several one-way jet nozzles.

[0010] This application has at least the following advantages compared to the prior art:

[0011] By combining the gas separation components, separators, and atomizers in the catalytic mechanism, hydrogen can be effectively catalytically purified during hydrogen recovery, removing any impurities that may be present in the hydrogen and increasing the reaction time between the hydrogen and the catalyst, thus better meeting the needs of high-purity hydrogen recovery. Attached Figure Description

[0012] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the external structure of this application.

[0014] Figure 2 This is a structural cross-sectional view of this application.

[0015] Figure 3 This is a schematic diagram of the atomization processor of this application.

[0016] Tank 1, exhaust port 11, air inlet 12, liquid injection port 13, liquid discharge port 14, partition plate 2, air hole 21, atomizing processor 3, spiral ring channel 31, main air pipe 4, and branch air pipe 41. Detailed Implementation

[0017] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] like Figure 1-3 As shown, a hydrogen recovery device for liquid ammonia production includes a tank 1. The upper and lower ends of the tank 1 are respectively provided with an exhaust port 11 and an inlet port 12. The lower side of the tank 1 is also provided with a liquid injection port 13 and a liquid discharge port 14. The lower side of the tank 1 is filled with a catalyst solution, and a catalytic mechanism is provided inside the tank 1.

[0019] The catalytic mechanism consists of a gas distribution component, a partition plate 2, and an atomizing processor 3. The gas distribution component is located at the air inlet 12 and extends into the tank 1. There are several partition plates 2, which are evenly distributed on the lower side of the tank 1. The atomizing processor 3 is located on the upper side of the tank 1.

[0020] The atomizing processor 3 is a cylindrical structure that completely fills the upper part of the canister 1. The atomizing processor 3 is hollow and has several spiral channels 31 on its side. The spiral channels 31 all pass through the upper and lower ends of the atomizing processor 3. Several atomizing nozzles are provided in the spiral channels 31. The several atomizing nozzles are connected to the catalyst solution liquid path on the lower side of the canister 1.

[0021] During the recovery and purification of hydrogen, hydrogen is introduced into tank 1 through the inlet 12 at the lower end of tank 1. The gas distribution component disperses the introduced hydrogen into tank 1 and outputs it in the form of tiny bubbles. This can improve the reaction between the hydrogen introduced into tank 1 and the catalyst solution in tank 1, thereby increasing the purity. As the hydrogen continues to rise and be introduced, it will pass through the atomizing processor 3. The spiral channel 31 opened in the atomizing processor 3 will force the gas to pass through, and the atomizing nozzles set in the spiral channel 31 will further spray the catalyst spray, so that the hydrogen entering the spiral channel 31 will undergo further catalytic reaction treatment. The spiral path of the spiral channel 31 can greatly improve the reaction time.

[0022] The liquid circuit connection method for the atomizing nozzle can be to install a liquid pump on the lower side of the tank 1, which draws the catalyst solution from the lower side of the tank 1 and delivers it to the atomizing nozzle through a hose, thereby achieving liquid circuit delivery.

[0023] The diameter of the partition plate 2 matches the inner diameter of the tank body 1, and the surface of the partition plate 2 is evenly covered with several air holes 21.

[0024] The air distribution assembly consists of a main air pipe 4 and several air distribution pipes 41. The air distribution pipes 41 are all connected to the air passage of the main air pipe 4 and the surface of the air distribution pipes 41 is provided with several one-way jet nozzles.

[0025] The main gas pipe 4 is used to centrally transport hydrogen, while the branch gas pipe 41 is used to disperse and output hydrogen, thereby increasing the area of ​​hydrogen dispersion within the tank 1 and improving the catalytic effect.

[0026] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A hydrogen recovery device for liquid ammonia production, comprising a tank, wherein an exhaust port and an inlet are respectively provided at the upper and lower ends of the tank, and an injection port and a discharge port are also provided on the lower side of the tank, wherein the lower side of the tank is filled with a catalyst solution, characterized in that: The tank is equipped with a catalytic mechanism; The catalytic mechanism consists of a gas distribution component, a partition plate, and an atomizing processor. The gas distribution component is located at the air inlet and extends into the tank. There are several partition plates, which are evenly distributed on the lower side of the tank. The atomizing processor is located on the upper side of the tank. The atomizing processor is cylindrical in shape and completely fills the upper part of the tank. The atomizing processor is hollow and has several spiral channels on its side. The spiral channels all pass through the upper and lower ends of the atomizing processor. Several atomizing nozzles are provided in the spiral channels, and the atomizing nozzles are connected to the catalyst solution channel on the lower part of the tank.

2. The hydrogen recovery device for liquid ammonia production according to claim 1, characterized in that: The diameter of the partition plate matches the inner diameter of the tank, and the surface of the partition plate has a number of air holes evenly distributed.

3. The hydrogen recovery device for liquid ammonia production according to claim 2, characterized in that: The air distribution assembly consists of a main air pipe and several air distribution pipes. Each of the air distribution pipes is connected to the main air pipe's air passage, and the surface of each air distribution pipe is provided with several one-way jet nozzles.

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