Catalytic reforming hydrogen production device
By installing flow control pipes and flow control valves in the reforming reactor, quantitative regulation and uniform introduction of methane vapor and water vapor were achieved, solving the problems of difficult regulation and uneven gas flow in the prior art, and improving reaction efficiency and hydrogen purity.
Patent Information
- Application Number
- CN202520174292.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-01-26
AI Technical Summary
Existing reforming reactors have difficulty in achieving quantitative control of methane vapor and water vapor, which affects the reforming reaction effect. Furthermore, uneven gas flow also affects the reaction efficiency.
The reactor consists of a main body, a water vapor pre-storage tank, a methane vapor pre-storage tank, a first micro gas pump, and a flow control valve. The first micro gas pump and the flow control valve are used to quantitatively regulate the water vapor and methane vapor, and the gas is uniformly pumped into the main body of the reactor through the flow control pipe to ensure uniform mixing.
It achieves quantitative control of methane vapor and water vapor, uniform gas flow introduction, improves the efficiency of reforming reaction and hydrogen generation, and enhances the purity and quality of hydrogen by using concentrated sulfuric acid and sodium hydroxide solution.
Smart Images
Figure CN223945618U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of methane reforming hydrogen production, specifically to a catalytic reforming hydrogen production device. BACKGROUND
[0002] Methane reforming hydrogen production is an important hydrogen production method, which has wide application prospect and significant technical advantage, and the hydrogen produced by methane reforming is more applied in fields such as synthetic ammonia, petroleum refining and fuel cell, and the reforming reactor is a commonly used methane reforming hydrogen production equipment.
[0003] However, the current reforming reactor can only heat and catalyze the mixed methane steam and water vapor, so the methane steam and water vapor are mixed first, and then enter the reforming reactor for heating and catalysis. However, in actual reaction, when the amount of methane steam or water vapor needs to be adjusted according to the progress of the reforming reaction, the existing reforming reactor is difficult to realize the quantitative control of the amount of methane steam and water vapor, which affects the reforming reaction effect. In addition, the mixed gas of methane steam and water vapor enters the reforming reactor through the feed pipe, which also has the problem of uneven gas flow introduction, thereby affecting the reaction efficiency.
[0004] Therefore, a new catalytic reforming hydrogen production device needs to be proposed to solve the above technical problems. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a catalytic reforming hydrogen production device to solve the problem that the existing reforming reactor is difficult to realize the quantitative control of the amount of methane steam and water vapor, which affects the reforming reaction effect.
[0006] To achieve the above purpose, the utility model provides the following technical scheme:
[0007] A catalytic reforming hydrogen production device, comprising a reactor main body, a water vapor prestorage tank body, a methane steam prestorage tank body, a first micro air pump and a flow control valve.
[0008] The top of the water vapor prestorage tank body and the top of the methane steam prestorage tank body are provided with port type feed pipes, and electromagnetic valves are installed on the port type feed pipes; the first micro air pump and the flow control valve are both two.
[0009] The port type feed pipe on the water vapor prestorage tank body is connected in sequence through the water vapor prestorage tank body, the first micro air pump, the flow control valve and the reactor main body; the port type feed pipe on the methane steam prestorage tank body is connected in sequence through the methane steam prestorage tank body, the first micro air pump, the flow control valve and the reactor main body.
[0010] Further limited, the flow control valve and the reactor body side are provided with a first control tube; the first control tube is used for pumping water vapor into the reactor body.
[0011] Further limited, the first control tube includes a tube body; the tube body is provided with a feeding reaction tube extending from the outside of the reactor body to the inside of the reactor body; a one-way valve is installed on the inner feeding reaction tube; the one-way valve is located outside the reactor body; the water vapor pre-storage tank is communicated with the inside of the reactor body through the first micro-pump, the flow control valve, the tube body and the feeding reaction tube.
[0012] Further limited, the feeding reaction tube is a plurality of and is uniformly distributed from top to bottom in the axial direction of the tube body.
[0013] Further limited, the methane vapor pre-storage tank and the reactor body are provided with a second control tube; the second control tube is used for pumping methanol gas into the reactor body; the structure of the second control tube is the same as that of the first control tube.
[0014] Further limited, a plurality of electric heating sheets are uniformly installed on the inner side wall of the reactor body; an electronic pressure gauge and a temperature sensor are further arranged on the reactor body; a catalyst replacement seat is installed on the bottom of the reactor body.
[0015] Further limited, the catalytic reforming hydrogen production device further comprises a concentrated sulfuric acid solution bottle and a sodium hydroxide solution bottle; the reactor body is communicated with the concentrated sulfuric acid solution bottle and the sodium hydroxide solution bottle in sequence; the concentrated sulfuric acid solution bottle is further connected with a hydrogen discharge pipe.
[0016] Further limited, the catalytic reforming hydrogen production device further comprises a fixed groove; the concentrated sulfuric acid solution bottle, the sodium hydroxide solution bottle and the hydrogen discharge pipe are arranged on the fixed groove.
[0017] Further limited, the inner wall of the reactor body and the inner side wall of the fixed groove are provided with nano ceramic anti-sticking layers; the electric heating sheets are located on the nano ceramic anti-sticking layers.
[0018] Compared with the prior art, the catalytic reforming hydrogen production device has the advantages that:
[0019] 1、The reactor body, the water vapor pre-storage tank, the methane vapor pre-storage tank, the first micro-pump and the flow control valve are arranged, the first micro-pump and the flow control valve are used for realizing quantitative control of water vapor and methane vapor, ensuring that the reforming reaction is carried out and promoting the generation of hydrogen.
[0020] 2. The utility model discloses a first control pipe fitting is established between the flow control valve and the one side of reactor main body, water vapor is even pumped into the reactor main body through the first control pipe fitting, a second control pipe fitting is established between the methane vapor prestorage tank and the reactor main body, and the second control pipe fitting is used for even pumping methanol gas into the reactor main body, makes water vapor and methanol gas enter even, fully mixes and contacts, improves the heat transfer reaction effect, and then promotes the reaction efficiency.
[0021] 3. The utility model discloses a concentrated sulfuric acid solution bottle and sodium hydroxide solution bottle are set up, realize the purification and drying of hydrogen, improve the quality of hydrogen, and the practicality is strong.
[0022] 4. The utility model discloses a catalyst replacement seat is installed, optimize own structure, and the top of catalyst replacement seat is provided with the threaded assembly pipe of the threaded connection with reactor main body, this is convenient for user flexible dismouting catalyst replacement seat, thereby being convenient for the replacement of the catalyst that catalyst replacement seat holds in the inside, improved the convenience of operation. ACCOUT OF DRAWINGS
[0023] Figure 1 It is the front view structure schematic diagram of the utility model;
[0024] Figure 2 It is the rear view structure schematic diagram of the utility model;
[0025] Figure 3 It is the front view structure schematic diagram of the first control pipe fitting of the utility model;
[0026] Figure 4 It is the reactor main body overhead sectional structure schematic diagram of the utility model;
[0027] Figure 5 It is the front view structure schematic diagram of catalyst replacement seat split state of the utility model;
[0028] In the drawing:
[0029] 1, water vapor prestorage tank, 2, temperature sensor, 3, first control pipe fitting, 4, integrated reaction frame, 5, catalyst replacement seat, 6, reactor main body, 7, methane vapor prestorage tank, 8, gas outlet pipe fitting, 9, electronic air pressure gauge, 10, concentrated sulfuric acid solution bottle, 11, sodium hydroxide solution bottle, 12, gas guide connection pipe, 13, hydrogen discharge pipe fitting, 14, fixed groove body, 15, PLC controller, 16, port type feed pipe, 17, electromagnetic valve, 18, first micro air pump, 19, flow control valve, 20, check valve, 21, internal feeding reaction pipe, 22, electric heating sheet, 23, threaded assembly pipe, 24, second micro air pump. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.
[0031] Embodiment 1
[0032] Referring to Figure 1 and Figure 2 The catalytic reforming hydrogen production device provided in the embodiment comprises a reactor main body (6), a water vapor pre-storage tank body 1, a methane vapor pre-storage tank body 7, a first micro air pump 18 and a flow control valve 19.
[0033] The first micro air pump 18 and the flow control valve 19 are both two.
[0034] The top of the water vapor pre-storage tank body 1 is provided with a port type feeding pipe 16, and the port type feeding pipe 16 is installed with an electromagnetic valve 17; the port type feeding pipe 16 on the water vapor pre-storage tank body 1 is sequentially communicated with the water vapor pre-storage tank body 1, the first micro air pump 18, the flow control valve 19 and the reactor main body 6.
[0035] The top of the methane vapor pre-storage tank body 7 is provided with a port type feeding pipe 16, and the port type feeding pipe 16 is installed with an electromagnetic valve 17; the port type feeding pipe 16 on the methane vapor pre-storage tank body 7 is sequentially communicated with the methane vapor pre-storage tank body 7, the first micro air pump 18, the flow control valve 19 and the reactor main body 6.
[0036] Preferably, the port type feeding pipe 16 is provided with a flange, and the water vapor pre-storage tank body 1 and the methane vapor pre-storage tank body 7 are connected with the material conveying equipment through the flange.
[0037] Referring to Figure 4 , a plurality of electric heating sheets 22 are uniformly installed on the inner side wall of the reactor main body 6; the reactor main body 6 is heated through the electric heating sheets 22, so as to provide the required temperature for the catalytic reforming hydrogen production reaction.
[0038] Referring to Figure 1 and Figure 2 , the reactor main body 6 is further provided with an electronic manometer 9 and a temperature sensor 2 respectively. The temperature and pressure of the catalytic reforming hydrogen production reaction in the reactor main body 6 are monitored through the electronic manometer 9 and the temperature sensor 2, so as to ensure the stable operation of the catalytic reforming hydrogen production reaction.
[0039] Preferably, a nano ceramic anti-sticking layer is arranged on the inner wall of the reactor main body 6; the electric heating sheet 22 is located on the nano ceramic anti-sticking layer.
[0040] Referring to Figure 1 andFigure 5 The bottom of the reactor body 6 is provided with a catalyst replacement seat 5, and preferably, a threaded fitting pipe 23 is arranged on the top of the catalyst replacement seat 5 and is screwed with the reactor body 6, so that the catalyst replacement seat 5 can be easily disassembled and assembled, thereby facilitating the replacement of the catalyst in the reactor body 6.
[0041] The working process of the catalytic reforming hydrogen production device provided by the embodiment is as follows:
[0042] First, the water vapor supply device is connected to the water vapor pre-storage tank 1 through the flange on the port type feeding pipe 16 at the top end of the water vapor pre-storage tank 1, and the methane vapor supply device is connected to the methane vapor pre-storage tank 7 through the flange on the port type feeding pipe 16 at the top end of the methane vapor pre-storage tank 7.
[0043] Secondly, the electromagnetic valves 17 installed on the two port type feeding pipes 16 are opened, so that the water vapor and the methane vapor are pre-stored in the water vapor pre-storage tank 1 and the methane vapor pre-storage tank 7, respectively.
[0044] Thirdly, the two first micro air pumps 18 and the two flow control valves 19 are opened, the valve opening degree of the flow control valve 19 is adjusted, so that the water vapor and the methane vapor are pumped into the reactor body 6 at a suitable flow rate, and the electronic air pressure gauge 9 is used to monitor the air pressure value in the reactor body 6; by controlling the opening time of the first micro air pump 18 and the flow control valve 19, the amount of water vapor and methane vapor pumped into the reactor body 6 each time can be quantitatively controlled, so that the water vapor and the methane vapor meet the required amount of the catalytic reforming reaction.
[0045] Finally, the electric heating sheet 22 is powered on to generate heat, the temperature sensor 2 is used to monitor the temperature value in the reactor body 6, when the temperature reaches the required temperature value, the catalytic reforming reaction of hydrogen production occurs between the water vapor, the methane vapor and the catalyst pre-loaded in the reactor body 6, carbon monoxide and hydrogen are generated, and the generated CO further reacts with the remaining water vapor to generate carbon dioxide and more hydrogen, during the catalytic reforming reaction of hydrogen production, the electronic air pressure gauge 9 monitors that the air pressure value is constantly changing, when the reaction is completed, the electronic air pressure gauge 9 monitors that the air pressure value is constant, at this time, all valves and pumps are closed, the catalytic reforming reaction of hydrogen production is completed, and the products are discharged from the top of the reactor body 6 for collection.
[0046] Embodiment 2
[0047] Referring to Figure 1 , the catalytic reforming hydrogen production device provided by the embodiment further comprises a first quantity control pipe 3 arranged between the flow control valve 19 and one side of the reactor body 6. The first quantity control pipe 3 is used to uniformly pump the water vapor into the reactor body 6.
[0048] Referring to Figure 3 , the first flow control pipe 3 comprises a pipe body; a feeding reaction pipe 21 is arranged on the pipe body and extends from the outside of the reactor body 6 to the inside of the reactor body 6; a one-way valve 20 is mounted on the feeding reaction pipe 21; the one-way valve 20 is located outside the reactor body 6; the water vapor pre-storage tank body 1 is in communication with the inside of the reactor body 6 through the first micro air pump 18, the flow control valve 19, the pipe body and the feeding reaction pipe 21.
[0049] In this embodiment, the feeding reaction pipe 21 is multiple and uniformly distributed from top to bottom in the axial direction of the pipe body. In the implementation, the multiple feeding reaction pipes 21 are equally spaced on the pipe body, so that the distributed multi-port feeding structure formed by the feeding reaction pipes 21 and the pipe body facilitates the uniform introduction of water vapor in the water vapor pre-storage tank body 1 into the inside of the reactor body 6.
[0050] In this embodiment, a second flow control pipe 3 is further arranged between the flow control valve 19 and the other side of the reactor body 6; the second flow control pipe 3 is used for uniformly pumping methanol gas into the reactor body 6.
[0051] Preferably, the structure of the second flow control pipe is the same as that of the first flow control pipe 3.
[0052] In this embodiment, through the first flow control pipe 3 and the second flow control pipe, water vapor and methane vapor can be uniformly and anti-backflow pumped into the inside of the reactor body 6, so that the gas flow is uniformly introduced, which is conducive to the full mixing and contact of water vapor and methane vapor and facilitates the subsequent hydrogen production reaction, thereby affecting the reaction efficiency.
[0053] Embodiment 3
[0054] Referring to Figure 2 , the catalytic reforming hydrogen production device provided in this embodiment further comprises a concentrated sulfuric acid solution bottle 10 and a sodium hydroxide solution bottle 11; the reactor body 6 is in communication with the concentrated sulfuric acid solution bottle 10 through the sodium hydroxide solution bottle 11 in sequence; and the concentrated sulfuric acid solution bottle 10 is further externally connected with a hydrogen discharge pipe 13.
[0055] In this embodiment, the catalytic reforming hydrogen production device further comprises a fixed groove body 14, and the concentrated sulfuric acid solution bottle 10, the sodium hydroxide solution bottle 11 and the hydrogen discharge pipe 13 are all arranged on the fixed groove body 14.
[0056] Preferably, an air outlet pipe 8 is connected between the reactor body 6 and the sodium hydroxide solution bottle 11, a gas guide connecting pipe 12 is connected between the sodium hydroxide solution bottle 11 and the concentrated sulfuric acid solution bottle 10, the fixed groove body 14 is provided with the hydrogen discharge pipe 13 which is matched with the concentrated sulfuric acid solution bottle 10 in communication, and the air outlet pipe 8 is mounted with a second micro air pump 24.
[0057] Preferably, the inner side wall of the fixed groove body 14 is provided with a nanometer ceramic anti-adhesion layer.
[0058] In the hydrogen production reaction of catalytic reforming, the second micro air pump 24 is opened, the mixed gas of carbon dioxide and hydrogen enters the inside of the sodium hydroxide solution bottle 11 through the gas outlet pipe 8, reacts with sodium hydroxide to remove carbon dioxide, and then the remaining mixed gas is introduced into the inside of the concentrated sulfuric acid solution bottle 10 through the gas guide connecting pipe 12, dried by concentrated sulfuric acid to remove residual moisture, and then dry and purified hydrogen gas can be obtained, which is discharged through the hydrogen gas discharge pipe 13 and collected uniformly, and the hydrogen gas preparation is completed.
[0059] The catalytic reforming hydrogen production device provided in the embodiment further comprises an integrated reaction frame 4. The integration of the device is realized by the integrated reaction frame 4, and the operability of each device is improved.
[0060] In implementation, the water vapor pre-storage tank 1, the reactor main body 6, the methane vapor pre-storage tank 7 and the fixed groove body 14 are all welded on the integrated reaction frame 4. The water vapor pre-storage tank 1, the reactor main body 6 and the methane vapor pre-storage tank 7 are fixed on one side of the integrated reaction frame 4, and the fixed groove body 14 is fixed on the other side of the integrated reaction frame 4. The two ends of the fixed groove body 14 are respectively threadedly connected with the concentrated sulfuric acid solution bottle 10 and the sodium hydroxide solution bottle 11, so as to facilitate independent disassembly and maintenance of the concentrated sulfuric acid solution bottle 10 and the sodium hydroxide solution bottle 11.
[0061] The PLC controller 15 is further installed on the side of the integrated reaction frame 4 away from the reactor main body 6. The PLC controller 15 is respectively connected with the electromagnetic valve 17, the first micro air pump 18, the flow control valve 19, the one-way valve 20 and the second micro air pump 24, and the opening and closing of each valve and pump are controlled by the PLC controller 15.
[0062] Preferably, the bottom of the integrated reaction frame 4 is uniformly provided with a fixing screw hole, the integrated reaction frame 4 is fixed and installed through the fixing screw hole, and the stability is improved.
[0063] Obviously, the above-described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.
Claims
1. A catalytic reforming hydrogen production apparatus characterized by comprising: The reactor main body (6), the water vapor pre-storage tank body (1), the methane vapor pre-storage tank body (7), the first micro air pump (18) and the flow control valve (19) are included. The top of the water vapor pre-storage tank body (1) and the top of the methane vapor pre-storage tank body (7) are provided with port type feeding pipes (16), and the port type feeding pipes (16) are respectively provided with electromagnetic valves (17). The port type feeding pipe (16) on the water vapor pre-storage tank body (1) is sequentially communicated with the water vapor pre-storage tank body (1), the first micro air pump (18) and the flow control valve (19) and one side of the reactor main body (6); the port type feeding pipe (16) on the methane vapor pre-storage tank body (7) is sequentially communicated with the methane vapor pre-storage tank body (7), the first micro air pump (18) and the flow control valve (19) and the other side of the reactor main body (6).
2. The catalytic reforming hydrogen production device according to claim 1, wherein The flow control valve (19) and one side of the reactor main body (6) are provided with the first control pipe (3); the first control pipe (3) is used for uniformly pumping water vapor into the reactor main body (6).
3. The catalytic reforming hydrogen production device according to claim 2, wherein The first control pipe (3) includes a pipe body; the pipe body is provided with a feeding reaction pipe (21) extending from the outside of the reactor main body (6) to the inside of the reactor main body (6); the feeding reaction pipe (21) is provided with a one-way valve (20); the one-way valve (20) is located outside the reactor main body (6); the water vapor pre-storage tank body (1) is communicated with the inside of the reactor main body (6) through the first micro air pump (18), the flow control valve (19), the pipe body and the feeding reaction pipe (21).
4. The catalytic reforming hydrogen production device according to claim 3, wherein The feeding reaction pipe (21) is multiple and uniformly distributed from top to bottom in the axial direction of the pipe body.
5. The catalytic reforming hydrogen production device according to claim 4, wherein The flow control valve (19) and the other side of the reactor main body (6) are provided with a second control pipe; the second control pipe is used for uniformly pumping methanol gas into the reactor main body (6); the structure of the second control pipe is the same as that of the first control pipe (3).
6. The catalytic reforming hydrogen production device according to any one of claims 1 to 5, wherein Multiple electric heating sheets (22) are uniformly arranged on the inner side wall of the reactor main body (6); the reactor main body (6) is further provided with an electronic air pressure gauge (9) and a temperature sensor (2); and a catalyst replacement seat (5) is arranged on the bottom of the reactor main body (6).
7. The catalytic reforming hydrogen production device according to claim 6, wherein The catalytic reforming hydrogen production device further includes a concentrated sulfuric acid solution bottle (10) and a sodium hydroxide solution bottle (11); the reactor main body (6) is sequentially communicated with the concentrated sulfuric acid solution bottle (10) through the sodium hydroxide solution bottle (11); and the concentrated sulfuric acid solution bottle (10) is further connected with a hydrogen discharge pipe (13) outside.
8. The catalytic reforming hydrogen production device according to claim 7, wherein The catalytic reforming hydrogen production device further includes a fixed groove body (14); the concentrated sulfuric acid solution bottle (10), the sodium hydroxide solution bottle (11) and the hydrogen discharge pipe (13) are arranged on the fixed groove body (14).
9. The catalytic reforming hydrogen production device according to claim 8, wherein The inner wall of the reactor main body (6) and the inner side wall of the fixed groove body (14) are provided with nano ceramic anti-sticking layers; and the electric heating sheets (22) are located on the nano ceramic anti-sticking layers.