A portable hydrogen generator based on water free radical cations

Abstract

The present invention discloses a portable hydrogen generating device based on water free radical cations, and the technical scheme thereof is as follows: comprising a housing, a power source, a reaction chamber with an air inlet and an air outlet, a benzene generator for generating a benzene gas flow, and a deionized water generator for generating a deionized water gas flow, wherein the benzene generator and the deionized water generator are both connected to the air inlet of the reaction chamber, an anode plate and a cathode plate are respectively provided on both sides of the reaction chamber, a plurality of corona needles arranged toward the cathode plate are provided on the anode plate, and the anode plate and the cathode plate are both connected to the power source. Compared with the prior art, the hydrogen generating device of the present invention is easy to use, the conditions required for the preparation of hydrogen are simple, the hydrogen production concentration is high, the energy consumption is low, dry burning does not occur, and the safety is good.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen production, and in particular to a portable hydrogen generating device based on water free radical cations. Background Art

[0002] As a green and pollution-free clean energy, hydrogen has extremely wide applications. However, the main principle of the current traditional small hydrogen generator is the electrolysis of water, which consumes a lot of electricity and has a high cost of hydrogen production. At the same time, the electrolysis of water to produce hydrogen requires continuous replenishment of water. Once the water is exhausted, the electrolytic cell is prone to dry burning. In addition, the production process of hydrogen by electrolysis of water will produce oxygen, which will easily pose a safety hazard.

[0003] In addition, traditional hydrogen generators require a high-power power supply to quickly produce hydrogen. They are not portable and are often difficult to use in specific environments where hydrogen production is urgently needed, and their practicality is poor. Summary of the invention

[0004] The technical problem to be solved by the present invention is to solve the problems in the prior art that the hydrogen generator has high hydrogen production cost, potential safety hazards and relatively poor portability and practicality.

[0005] The technical solution of the present invention is to provide a portable hydrogen generating device based on water free radical cations, comprising a shell, wherein a power source, a reaction chamber with an air inlet end and an air outlet end, a benzene generator for generating a benzene gas flow, and a deionized water generator for generating a deionized water gas flow are arranged in the shell, the benzene generator and the deionized water generator are both connected to the air inlet end of the reaction chamber, an anode plate and a cathode plate are respectively arranged on both sides of the reaction chamber, a plurality of corona needles arranged toward the cathode plate are arranged on the anode plate, and the anode plate and the cathode plate are both connected to the power source.

[0006] The above scheme forms a corona electric field inside the reaction chamber, so that the deionized water at the air inlet end of the reaction chamber can be ionized to form water radical cations, and the water radical cations further react with benzene to generate hydrogen and phenol radical cations, wherein the phenol radical cations are automatically adsorbed to the cathode plate due to the electric field, so that the hydrogen can be discharged from the air outlet after being separated and purified. Compared with the prior art, the hydrogen generating device of the present invention is easy to use, the conditions required for the preparation of hydrogen are simple, the hydrogen production concentration can reach more than 2000ppm, the energy consumption is low and dry burning will not occur, and the safety is good. In addition, the atomic utilization rate in the reaction chamber is high, the Faraday efficiency of the generated phenol can be as high as 60%, and the phenol radical cations are automatically adsorbed to the cathode plate under the action of the electric field, without environmental pollution, and effectively solve the problem of excess acetone production capacity in the traditional isopropylbenzene method.

[0007] Preferably, the length of the corona needle is 7 to 75 mm, the diameter of the corona needle is 150 to 350 μm, and the radius of curvature of the tip of the corona needle is 7.5 to 17.5 μm, which is conducive to promoting the generation of a corona electric field for the reaction between deionized water and benzene.

[0008] Preferably, the distance between the tip of the corona needle and the cathode plate is 5 to 20 mm, and the voltage difference between the anode plate and the cathode plate is 0 to 2.5 kV, ensuring that the ionic strength of the water radical cations formed by ionization is maintained at a high level, thereby accelerating the production efficiency of hydrogen.

[0009] Preferably, the cathode plate comprises an insulating plate, the surface of which is wrapped with copper foil, so that the phenol radical cations can form crystal spots on the surface of the copper foil.

[0010] Preferably, it also includes a tail gas absorber, which includes a tail gas bottle filled with absorption liquid, an air inlet pipe connected to the gas outlet end of the reaction chamber, and an air outlet pipe connected to the outside world. The air inlet pipe of the tail gas absorber is connected to below the liquid level of the absorption liquid and the air outlet pipe is connected to above the absorption liquid, thereby further purifying the gas at the gas outlet end of the reaction chamber to prevent tail gas pollution.

[0011] Preferably, it also includes an air pump, the benzene generator includes a benzene liquid bottle filled with benzene liquid, an air inlet pipe supplied by the air pump and an air outlet pipe connected to the reaction chamber, and the air inlet pipe and the air outlet pipe of the benzene generator are both connected to the top of the benzene liquid; the deionized water generator includes a deionized water bottle filled with deionized water, an air inlet pipe supplied by the air pump and an air outlet pipe connected to the reaction chamber, the air inlet pipe of the deionized water generator is connected to below the liquid surface of the deionized water and the air outlet pipe is connected to above the deionized water.

[0012] Preferably, the air pump is provided with filter cotton to prevent impurities from entering the reaction chamber.

[0013] Preferably, the gas pump is provided with a gas flow meter to facilitate quantitative control of hydrogen preparation.

[0014] Preferably, the shell is also provided with an observation window facing the benzene liquid bottle and / or the deionized water bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a disassembly schematic diagram of a portable hydrogen generating device based on water radical cations of the present invention;

[0016] Figure 2 A schematic diagram of the internal structure of a reaction chamber of a portable hydrogen generation device based on water radical cations of the present invention;

[0017] Figure 3It is a logic flow chart of a portable hydrogen generating device based on water radical cations of the present invention;

[0018] In the attached drawings: 1-shell; 1.1-observation window; 2-deionized water generator; 3-benzene generator; 4-reaction chamber; 4.1-anode plate; 4.2-cathode plate; 4.3-corona needle; 5-tail gas absorber; 5.1-hydrogen outlet; 6-air pump. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 3 A portable hydrogen generating device based on water free radical cations provided in an embodiment of the present invention comprises a shell 1, in which a power source, a reaction chamber 4 with an air inlet and an air outlet, a benzene generator 3 for generating a benzene gas flow, and a deionized water generator 2 for generating a deionized water gas flow are arranged. The benzene generator 3 and the deionized water generator 2 are both connected to the air inlet of the reaction chamber 4, and an anode plate 4.1 and a cathode plate 4.2 are respectively arranged on both sides of the reaction chamber 4, and a plurality of corona needles 4.3 arranged toward the cathode plate 4.2 are arranged on the anode plate 4.1, and the anode plate 4.1 and the cathode plate 4.2 are both connected to the power source.

[0021] The above scheme forms a corona electric field inside the reaction chamber 4, so that the deionized water at the air inlet end of the reaction chamber 4 can be ionized to form water radical cations, and the water radical cations further react with benzene to generate hydrogen and phenol radical cations, wherein the phenol radical cations are automatically adsorbed onto the cathode plate 4.2 due to the action of the electric field, and the hydrogen can be discharged from the air outlet after being separated and purified.

[0022] In this embodiment, the length of the corona needle 4.3 is 7-75 mm, the diameter of the corona needle 4.3 is 150-350 μm, and the radius of curvature of the tip of the corona needle 4.3 is 7.5-17.5 μm, which is conducive to promoting the generation of a corona electric field for the reaction between deionized water and benzene.

[0023] The voltage difference between the anode plate 4.1 and the cathode plate 4.2 in the reaction chamber 4 is 0-2.5 kV. Otherwise, if the voltage difference between the positive plate and the negative plate is too large, the water radical cations may be decomposed, and at the same time, non-reactive impurity ions such as protonated water clusters will increase, resulting in poor hydrogen production effect.

[0024] The distance between the tip of the corona needle 4.3 on the anode plate 4.1 and the cathode plate 4.2 is controlled to be 5 to 20 mm. If the distance between the anode plate 4.1 and the cathode plate 4.2 is too large, the ion transmission efficiency decreases, resulting in a decrease in the ionic strength of the water radical cations, which affects the efficiency of hydrogen generation.

[0025] By setting the distance and voltage difference between the anode plate 4.1 and the cathode plate 4.2 of the reaction chamber 4, the ionic strength of the water radical cations formed by ionization is ensured to be maintained at a high level, thereby accelerating the production efficiency of hydrogen.

[0026] The cathode plate 4.2 includes an insulating plate, the surface of which is wrapped with copper foil, so that the phenol radical cation can form crystal spots on the surface of the copper foil. By collecting, separating and recrystallizing the crystal spots produced by multiple reactions, byproduct phenol crystals can be obtained. This is a new process for directly oxidizing benzene to synthesize phenol in one step. The Faraday efficiency of phenol can be as high as 60%, which effectively solves the problem of excess acetone production capacity in the traditional isopropylbenzene method.

[0027] A tail gas absorber 5 may be further provided at the gas outlet of the reaction chamber 4, and the tail gas absorber 5 includes a tail gas bottle filled with an absorption liquid, an air inlet pipe connected to the gas outlet of the reaction chamber 4, and an air outlet pipe connected to the hydrogen gas outlet 5.1. The absorption liquid may be water or an organic solvent. The air inlet pipe of the tail gas absorber 5 is connected to below the liquid level of the absorption liquid, and the air outlet pipe is connected to above the absorption liquid. Trace amounts of benzene or phenol in the gas discharged from the gas outlet of the reaction chamber 4 can be fully absorbed by the absorption liquid in the tail gas bottle, further preventing tail gas pollution.

[0028] In the present embodiment, the benzene generator 3 includes a benzene liquid bottle filled with benzene liquid, an air inlet pipe supplied by an air pump 6, and an air outlet pipe connected to the reaction chamber 4. The air inlet pipe and the air outlet pipe of the benzene generator 3 are both connected to the top of the benzene liquid bottle to obtain a gas flow containing benzene of a suitable concentration; the deionized water generator 2 includes a deionized water bottle filled with deionized water, an air inlet pipe supplied by an air pump 6, and an air outlet pipe connected to the reaction chamber 4. The air inlet pipe of the deionized water generator 2 is connected to below the liquid surface of the deionized water and the air outlet pipe is connected to above the deionized water to obtain a gas flow containing deionized water of a suitable concentration. Of course, the air inlet pipe and the air outlet pipe of the benzene generator 3 or the deionized water generator 2 can be set in other ways according to actual needs to obtain a gas flow containing benzene or a gas flow containing deionized water of other concentrations.

[0029] like Figure 1As shown, the air pump 6 uses external air as carrier gas, first passes the carrier gas into the deionized water bottle, and further passes the benzene liquid bottle from the outlet pipe of the deionized water bottle, and then enters the corona electric field of the reaction chamber 4 from the outlet pipe of the benzene liquid bottle to react and produce hydrogen, thereby forming a series connection mode, so that the deionized water and benzene in the carrier gas are mixed more evenly, and the collision reaction of deionized water and benzene in the reaction chamber 4 is promoted, and the preparation of the deionized water gas flow and the benzene gas flow is simple and convenient to supplement. It should be pointed out that the benzene liquid bottle and the deionized water bottle can not only be connected to the air inlet end of the reaction chamber 4 in a series mode, but also can be connected to the air inlet end of the reaction chamber 4 in a parallel mode.

[0030] The air pump 6 is provided with filter cotton to prevent impurities from entering the reaction chamber 4 .

[0031] The gas pump 6 is provided with a gas flow meter, and the outlet pipe of the tail gas bottle may also be provided with a gas flow meter to facilitate quantitative control of the preparation of hydrogen.

[0032] Compared with the prior art, the hydrogen generating device of the present invention is easy to use, has simple hydrogen preparation conditions, can produce hydrogen at a concentration of more than 2000ppm, has low energy consumption, does not cause dry burning, and has good safety. In addition, the Faraday efficiency of the phenol produced by the reaction can be as high as 60%, with high atomic utilization and no environmental pollution.

[0033] The present invention is described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A portable hydrogen generating device based on water radical cations, comprising a housing, characterized in that: The shell is provided with a power supply, a reaction chamber with an air inlet end and an air outlet end, a benzene generator for generating a benzene gas flow, and a deionized water generator for generating a deionized water gas flow. The benzene generator and the deionized water generator are both connected to the air inlet end of the reaction chamber. An anode plate and a cathode plate are respectively provided on both sides of the reaction chamber. The anode plate is provided with a plurality of corona needles arranged toward the cathode plate. The anode plate and the cathode plate are both connected to the power supply.

2. A portable hydrogen generating device based on water radical cations according to claim 1, characterized in that: The length of the corona needle is 7-75 mm, the diameter of the corona needle is 150-350 μm, and the curvature radius of the needle tip of the corona needle is 7.5-17.5 μm.

3. A portable hydrogen generating device based on water radical cations according to claim 1, characterized in that: The distance between the needle tip of the corona needle and the cathode plate is 5-20 mm, and the voltage difference between the anode plate and the cathode plate is 0-2.5 kV.

4. A portable hydrogen generating device based on water radical cations according to claim 1, characterized in that: The cathode plate comprises an insulating plate, and the surface of the insulating plate is wrapped with copper foil paper.

5. A portable hydrogen generating device based on water radical cations according to any one of claims 1-4, characterized in that: It also includes a tail gas absorber, which includes a tail gas bottle filled with absorption liquid, an air inlet pipe connected to the gas outlet end of the reaction chamber, and an air outlet pipe connected to the outside world. The air inlet pipe of the tail gas absorber is connected to below the liquid level of the absorption liquid and the air outlet pipe is connected to above the absorption liquid.

6. A portable hydrogen generating device based on water radical cations according to claim 5, characterized in that: A gas flow meter is arranged on the gas outlet pipe of the tail gas bottle.

7. A portable hydrogen generating device based on water radical cations according to any one of claims 1 to 4, characterized in that: It also includes an air pump, the benzene generator includes a benzene liquid bottle filled with benzene liquid, an air inlet pipe supplied by the air pump and an air outlet pipe connected to the reaction chamber, and the air inlet pipe and the air outlet pipe of the benzene generator are both connected to the top of the benzene liquid; the deionized water generator includes a deionized water bottle filled with deionized water, an air inlet pipe supplied by the air pump and an air outlet pipe connected to the reaction chamber, the air inlet pipe of the deionized water generator is connected to below the liquid surface of the deionized water, and the air outlet pipe is connected to above the deionized water.

8. A portable hydrogen generating device based on water radical cations according to claim 7, characterized in that: The air pump is provided with filter cotton.

9. A portable hydrogen generating device based on water radical cations according to claim 7, characterized in that: The air pump is provided with a gas flow meter.

10. A portable hydrogen generating device based on water radical cations according to claim 7, characterized in that: The shell is also provided with an observation window facing the benzene liquid bottle and / or the deionized water bottle.

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