CN1384044A - Hydrogen preparing method and device - Google Patents
Hydrogen preparing method and device Download PDFInfo
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- CN1384044A CN1384044A CN 02104279 CN02104279A CN1384044A CN 1384044 A CN1384044 A CN 1384044A CN 02104279 CN02104279 CN 02104279 CN 02104279 A CN02104279 A CN 02104279A CN 1384044 A CN1384044 A CN 1384044A
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 122
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 122
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 118
- 238000000034 method Methods 0.000 title description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 96
- 239000007788 liquid Substances 0.000 claims abstract description 63
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 18
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- 238000003860 storage Methods 0.000 claims description 43
- 239000007864 aqueous solution Substances 0.000 claims description 27
- 238000004519 manufacturing process Methods 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 15
- 239000002699 waste material Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 10
- 150000002431 hydrogen Chemical class 0.000 claims description 9
- 239000011229 interlayer Substances 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 23
- 239000000446 fuel Substances 0.000 abstract description 14
- 230000036632 reaction speed Effects 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000006227 byproduct Substances 0.000 description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 7
- 229910052708 sodium Inorganic materials 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910010276 inorganic hydride Inorganic materials 0.000 description 3
- 229910052987 metal hydride Inorganic materials 0.000 description 3
- 150000004681 metal hydrides Chemical class 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000002407 reforming Methods 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- CSDQQAQKBAQLLE-UHFFFAOYSA-N 4-(4-chlorophenyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine Chemical compound C1=CC(Cl)=CC=C1C1C(C=CS2)=C2CCN1 CSDQQAQKBAQLLE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009689 gas atomisation Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- SIAPCJWMELPYOE-UHFFFAOYSA-N lithium hydride Chemical compound [LiH] SIAPCJWMELPYOE-UHFFFAOYSA-N 0.000 description 1
- 229910000103 lithium hydride Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Fuel Cell (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present ivnention relates to hydrogen preparation. Hydrogen is prepared through the reaction of metal aluminum powder with average size of 10 nm to 10 nm with water solution of sodium hydroxide of concentration 0.1-30 % in a reactor. The hydrogen preparing apparatus includes liquid container, reactor, aluminum powder container, hydrogen storing tank and liquid exhaust unit connected via pipeline and valve. The present invention has low material cost, easily controlled reaction speed, stable hydrogen output, no environmental pollution and other advantages and is especially suitable for hydrogen fuel battery.
Description
Technical Field
The invention belongs to the technical field of hydrogen manufacturing, and particularly relates to a method for preparing hydrogen by reacting metal aluminum with sodium hydroxide and a hydrogen supply device thereof.
Background
Hydrogen is widely used as an important chemical substance in the chemical industry, the petroleum industry, the food industry and the metallurgical industry. While hydrogen is a clean energy source material. The utilization and development of the current fuel cell, especially the utilization and development of the proton exchange membrane fuel cell (PEFC), have become the leading technical field of overcoming the energy crisis and environmental pollution in the new century internationally, especially the development and development of the mobile tool driven by the hydrogen-oxygen fuel cell, have been listed as the key investment research projects by the developed countries, and have been in the situation of mutual cooperation and mutual competition among the internationally and large companies. One important issue that is urgently needed to be solved for the large-scale application of fuel cells is how to efficiently and safely provide a hydrogen source for the fuel cells.
There are currently five general ways to provide a hydrogen source for a fuel cell: 1) high pressure hydrogen cylinder method; 2) a low temperature liquefied hydrogen process; 3) methanol or gasoline reforming processes; 4) metal hydride solid state hydrogen storage; 5) various inorganic hydride hydrogen storage methods. The high-pressure hydrogen cylinder method and the low-temperature liquefied hydrogen method have the defects of high cost, poor safety and the like in the using and transporting processes; although the methanol or gasoline reforming method is convenient to use and can integrate hydrogen production and hydrogen storage, the method has the defects of high reforming temperature requirement, low energy conversion rate, high cost and incapability of realizing zero emission of harmful gases. The solid hydrogen storage method of metal hydride is a safer hydrogen storage method, but has the disadvantages of lower hydrogen storage capacity, incapability of being applied to high-power fuel cells and poorer low-temperature hydrogen discharge performance. The hydrogen storage method of inorganic hydride is to produce hydrogen by using the principle that inorganic hydride such as sodium borohydride, sodium hydride, lithium hydride, calcium hydride reacts with water to produce hydrogen, and the method is characterized by fast hydrogen production speed and low-temperature hydrogen production, and has the disadvantages of high cost of hydride raw materials, difficult recycling and wide application.
Disclosure of Invention
The invention provides a method and a device for preparing hydrogen, which are simple to operate and safe to use, for solving the problems in the prior art.
The invention aims to provide a hydrogen preparation method, namely, the hydrogen is prepared by reacting metal aluminum powder with an aqueous solution of sodium hydroxide.
The reaction principle is as follows:
the metal aluminum powder used in the invention can be prepared by a reduction method, can also be prepared by other metallurgical processes such as gas atomization and the like, and has low requirement on the purity of the aluminum powder, generally more than 92 percent.
The average particle size of the metal aluminum powder used in the invention can be between 10mm and 10nm, wherein the powder with the average particle size of between 1mm and 20 mu m is most suitable, the particle size is too large, the reaction speed is too slow, the actual use requirement cannot be met, the particle size is too small, the reaction speed is too fast, foams are easy to generate, and the control of the reaction speed is not facilitated.
The sodium hydroxide used in the invention is a common industrial raw material, and the requirement on the purity of the sodium hydroxide is not high and is generally more than 92%.
The concentration of the sodium hydroxide aqueous solution used in the invention is between 0.1 wt% and 30 wt%, wherein the sodium hydroxide aqueous solution with the concentration between 1 wt% mm and 10 wt% is most suitable, the concentration is too small, the utilization rate is low, the reaction speed is too slow, the actual use requirement cannot be met, the concentration is too large, the reaction speed is too fast, foams are easily generated, and the control of the reaction speed is not facilitated.
The key point of the hydrogen production method is to control the reaction speed, and the reaction speed is mainly controlled by the granularity of the metal aluminum powder, the concentration of the sodium hydroxide aqueous solution and the reaction temperature. Therefore, the reasonable collocation of the aluminum powder granularity and the concentration of the sodium hydroxide aqueous solution can be selected according to the hydrogen requirements of different occasions.
The hydrogen production method of the invention can recycle the byproduct sodium metaaluminate, such as can be used in ceramic industry and other industries.
The hydrogen preparation method adopts the following technical scheme:
the hydrogen preparing process includes the reaction of metal aluminum powder and sodium hydroxide aqua in a reactor to obtain hydrogen, the metal aluminum powder has average granularity of 10mm-10nm and the sodium hydroxide aqua has weight concentration of 0.1-30%.
The hydrogen preparation method of the invention can also adopt the following technical measures:
the hydrogen preparation method is characterized in that the average particle size of the metal aluminum powder is 1mm-20 mu m.
The preparation method of the hydrogen is characterized in that the weight percentage concentration of the sodium hydroxide aqueous solution is 1-10%.
The second purpose of the present invention is to provide a hydrogen production apparatus, which is safe and stable in operation, fast in hydrogen supply speed and easy to control.
The hydrogen preparation device adopts the following technical scheme:
the hydrogen preparing device is constructed and connected in such a way that a liquid storage container is connected with a reactor through a pipeline, an aluminum powder container is connected with the reactor through a pipeline and a valve, an aluminum powder interlayer is arranged in the reactor, the reactor is connected with a hydrogen storage tank through a pipeline, and the reactor is connected with a liquid discharge pipeline provided with a liquid discharge control device.
The hydrogen preparation device can also adopt the following technical measures:
the hydrogen preparation device is characterized in that the liquid storage container is connected with the reactor through a pipeline and a liquid control device; the aluminum powder container is connected with the reactor through a pipeline, a valve and a gas plug-in valve.
The hydrogen preparing device is characterized in that the aluminum powder interlayer in the reactor is a baffle with holes or high-temperature-resistant woven cloth such as glass fiber cloth. The aluminum powder interlayer has the function of allowing the sodium hydroxide aqueous solution to pass through and contact with the metal aluminum, and simultaneously can prevent the metal aluminum powder slurry from being taken out by the hydrogen of the reaction product to block the pipeline.
The hydrogen preparing device is characterized in that the joint of the reactor and the hydrogen pipeline is provided with the filter disc, and the hydrogen pipeline is provided with the cooler, so that the aim of cold-driving hydrogen can be achieved.
The hydrogen preparation device is characterized in that a filter disc is arranged at the joint of the reactor and a liquid discharge pipeline provided with a liquid discharge control device, and the liquid discharge pipeline is connected with a waste liquid container; the waste liquid container is communicated with the hydrogen pipeline through a pipeline, so that hydrogen generated by continuous reaction of a small amount of residual reactants in the waste liquid pool can be sent to the gas storage tank through a loop.
The hydrogen preparing apparatus features that the hydrogen storing tank is provided with pressure sensor connected to the controller, the controller is connected to the liquid metering pump as the pipeline liquid controller, and the reactor has nozzle in the pipeline. The function is that when the pressure in the hydrogen storage tank is lower than a certain set value, the controller starts the liquid metering pump, sprays a certain amount of liquid reactant to the reactor, the reaction starts, the prepared hydrogen is supplemented to the storage tank, and when the pressure reaches the set value, the controller closes the liquid pump.
In the hydrogen preparation device, the aluminum powder interlayer in the reactor is provided with the liquid level sensor, the sensor is connected with the controller, and the controller is connected with the liquid pump of the liquid discharge control device. When the liquid level of the reaction by-product exceeds the baffle, the controller starts the liquid pump to discharge the waste liquid.
The reactor, baffle, filter, nozzle, solid fuel storage tank, waste liquid pool and pipeline of the hydrogen preparing device are made of stainless steel or other materials with alkali corrosion resistance, high temperature resistance and certain pressure resistance.
When the hydrogen generating device is used, the storage tank filled with the aluminum powder needs to be vacuumized or injected with hydrogen before use, so that air is prevented from being brought into the whole hydrogen supply system.
The hydrogen storage tank of the hydrogen generating device can provide hydrogen for cold start of the fuel cell, and the hydrogen generated due to reaction lag can be stored in the storage tank.
The controller used by the hydrogen generating device is a programmable program controller, the pressure range of the gas storage tank can be set according to the requirement, and the adding amount can be calculated and controlled according to the concentration of the sodium hydroxide aqueous solution.
The hydrogen production and hydrogen transmission process of the invention is as follows: the metal aluminum powder is added into the reactor through the storage tank and is fully filled to the position near the baffle plate once, when the pressure in the gas storage tank is lower than a set value, the liquid pump is started through the controller, a certain amount of sodium hydroxide water solution is sprayed into the reactor, the sodium hydroxide water solution is contacted with the metal aluminum powder through the aluminum powder interlayer and reacts to generate hydrogen, and the hydrogen is supplemented into the gas storage tank through the filter sheet and the cooling device, so that the pressure of the gas storage tank returns to a normal range. When the liquid level of the reaction byproduct sodium metaaluminate aqueous solution exceeds the baffle plate, the liquid level sensor starts a liquid pump to pump the reaction byproduct sodium metaaluminate aqueous solution to a waste liquid pool. And when all the aluminum powder in the reactor is reacted, adding the aluminum powder into the reactor from the storage tank, and replenishing from the outside after the sodium hydroxide aqueous solution is used up. The aluminum powder in the aluminum powder storage tank can be replaced again after being used up. The hydrogen in the gas storage tank can be directly stored in a fuel cell or other occasions needing the hydrogen.
The invention has the advantages and positive effects that: 1) the metallic aluminum and the sodium hydroxide are reacted by adding water, the reaction product is an environment-friendly substance, and carbon-containing and nitrogen-containing harmful gases are not discharged in the whole hydrogen generation and use processes; 2) compared with other hydrogen storage modes, the metal aluminum has high hydrogen storage capacity which can reach 11 percent of each kilogram of raw materials and is 10 times of the hydrogen storage capacity of the metal hydride; 3) the storage, the use is safe, and the carrying is convenient; 4) the purity of the hydrogen is high, and the poisoning of the fuel cell electrode catalyst can not be caused; 5) the price is low, and the use cost is equivalent to the cost of the hydrogen sold in the market; 6) the energy utilization rate is high, and a large part of hydrogen can be ionized from water without additional energy in the reaction process; 7) the use mode of the existing gas station can be utilized to the maximum extent by using the metallic aluminum as the hydrogen storage fuel, but the gasoline is changed into the metallic aluminum and the sodium hydroxide aqueous solution; 8) the hydrogen supply speed is high, the hydrogen can be produced at low temperature, and a catalyst is not needed; 9) the reaction by-product sodium metaaluminate is a water-soluble substance, is easy to remove and cannot block a pipeline. 10) Convenient recycling, can also directly use the generated by-products in other aspects, 11) the aluminum has abundant reserves on the earth and wide raw material sources.
In conclusion, the invention has the obvious advantages of easy control of reaction speed, stable hydrogen output, environmental protection, no pollution, safe use and transportation, portability, low manufacturing cost and the like, is particularly suitable for hydrogen fuel supply of fuel cells for mobile tools, and makes large-scale application of the hydrogen supply system possible.
Drawings
FIG. 1 is a schematic structural diagram of a hydrogen production apparatus according to the present invention.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following examples are given in conjunction with the accompanying drawings to illustrate and describe the following:
example 1
1 g of aluminum powder with the average particle size of 177 microns and the purity of 96 percent is added into a reactor with a charging port, a gas leading-out port and a temperature measurement inserting port, then 35ml of sodium hydroxide aqueous solution with the weight percentage concentration of 5 percent is added into a reaction vessel, the reaction starting temperature is 20 ℃, the temperature rises after the reaction starts, and the aluminum powder and the sodium hydroxide aqueous solution react in the reactor to obtain a hydrogen product.
Example 2
Adding 1 g of aluminum powder with the average particle size of 74 microns and the purity of 99% into a reactor with a feeding port, a gas leading-out port and a temperature measurement inserting port, then adding 35ml of sodium hydroxide aqueous solution with the weight concentration of 5% into a reaction vessel, wherein the reaction starting temperature is 20 ℃, the temperature is increased after the reaction starts, the temperature is 88 ℃ when the reaction ends, and the aluminum powder and the sodium hydroxide aqueous solution react in the reactor to obtain a hydrogen product.
Example 3
The conditions and steps are the same as those of the example 1, the average grain diameter of the aluminum powder is 0.177mm, and the purity is 96 percent; the weight percentage concentration of the sodium hydroxide aqueous solution is 10 percent; the hydrogen product is prepared by reaction.
Example 4
Referring to the attached figure 1, the hydrogen preparation device is structurally and connected in a way that a liquid storage tank 2 with a pipeline valve 1 is connected with a reactor 6 through a pipeline 25, a liquid metering pump 4 and a nozzle 5 of the pipeline 25; an aluminum powder tank 17 with a pipeline valve 18 is connected with the reactor 6 through a pipeline 26, a valve 16 and a gas plug-in valve 15; an aluminum powder stainless steel baffle 9 with holes is arranged in the reactor 6, and a liquid level sensor 8 is arranged above the baffle 9; the reactor 6 is connected with a hydrogen storage tank 23 with a pipeline valve 24 through a pipeline 29, a filter disc 19 is arranged at the joint of the pipeline 29 and the reactor 6, and the pipeline29 is provided with a cooler 20; the reactor 6 is connected with a liquid discharge pipeline 27 provided with a liquid pump 11, a filter sheet 10 is arranged at the joint of the reactor 6 and the liquid discharge pipeline 27, the liquid discharge pipeline 27 is connected with a waste liquid pool 12 provided with a pipeline valve 14, and the waste liquid pool 12 is communicated with a hydrogen pipeline 29 by a pipeline 28. The hydrogen storage tank 23 is provided with a pressure sensor 22, the pressure sensor 22 is connected with the controller 21, and the controller 21 is connected with the liquid metering pump 4. The level sensor 8 in the reactor 6 is connected to a controller 21, and the controller 21 is connected to the liquid pump 11.
Operation of example 4:
the liquid storage tank 2 is filled with a sodium hydroxide aqueous solution 3 with the weight percentage concentration of 20 percent, the aluminum powder storage tank 17 is filled with aluminum powder 7 with the average particle size of 0.5mm and the purity of 98 percent, the aluminum powder 7 is added into the reactor 6 through a valve 16 and a gas plug-in valve 15 and is filled up to the baffle 9 at one time; when the pressure in the hydrogen gas storage tank 23 is lower than a set value, the controller 21 starts the liquid pump 4 to inject a quantitative sodium hydroxide aqueous solution 3 into the reactor 6 according to the signal intensity of the pressure sensor 22, the sodium hydroxide aqueous solution 3 contacts and reacts with the metal aluminum powder 7 through the aluminum powder baffle plate 9 to generate hydrogen, and the hydrogen is supplemented into the hydrogen gas storage tank 23 through the filter plate 19 and the cooler 20 and the pipeline 29, so that the hydrogen gas pressure in the hydrogen gas storage tank 23 returns to a normal range. When the liquid level of the reaction byproduct sodium metaaluminate aqueous solution exceeds the baffle plate 9, the liquid level sensor 8 transmits a signal to the controller 21, and the controller 21 starts the liquid pump 11 to pump the reaction byproduct sodium metaaluminate aqueous solution into the waste liquid tank 12 through the filter disc 10; the aluminum powder and sodium hydroxide which are not completely reacted in the sodium metaaluminate aqueous solution 13 which is a byproduct of the waste liquid tank 12 continue to react, and the generated hydrogen enters a hydrogen pipeline 29 through a pipeline 28. After all the aluminum powder in the reactor 6 is reacted, the aluminum powder 7 is added into the reactor 6 from the storage tank 17, and the sodium hydroxide aqueous solution 3 is replenished from the outside after being used up. The present invention can ensure that stable hydrogen gas is supplied from the pipe 30 to the hydrogen tank 23 through the valve 24.
Claims (10)
1. A hydrogen production method is characterized in that: the metal aluminum powder reacts with the sodium hydroxide aqueous solution to prepare hydrogen, the average particle size of the metal aluminum powder is 10mm-10nm, and the weight percentage concentration of the sodium hydroxide aqueous solution is 0.1% -30%.
2. The hydrogen production method according to claim 1, characterized in that: the average particle size of the metal aluminum powder is 1mm-20 μm.
3. The hydrogen production method according to claim 1, characterized in that: the weight percentage concentration of the sodium hydroxide aqueous solution is 1 to 10 percent.
4. A hydrogen preparation device is characterized in that: the liquid storage container is connected with the reactor through a pipeline, the aluminum powder container is connected with the reactor through a pipeline and a valve, an aluminum powder interlayer is arranged in the reactor, the reactor is connected with a hydrogen storage tank through a pipeline, and the reactor is connected with a liquid drainage pipeline provided with a liquid drainage control device.
5. The hydrogen production apparatus according to claim 4, characterized in that: the liquid storage container is connected with the reactor through a pipeline and a liquid control device; the aluminum powder container is connected with the reactor through a pipeline, a valve and a gas plug-in valve.
6. The hydrogen production apparatus according to claim 4, characterized in that: the aluminum powder interlayer in the reactor is a baffle with holes or woven cloth.
7. The hydrogen production apparatus according to claim 4, characterized in that: the joint of the reactor and the hydrogen pipeline is provided with a filter disc, and the hydrogen pipeline is provided with a cooler.
8. The hydrogen production apparatus according to claim 4, characterized in that: the reactor is connected with a liquid discharge pipeline provided with a liquid discharge control device, and the liquid discharge pipeline is connected with a waste liquid container; the waste liquid container is communicated with the hydrogen pipeline through a pipeline.
9. The hydrogen production apparatus according to claims 4 to 8, characterized in that: the hydrogen storage tank is provided with a pressure sensor which is connected with a controller, the controller is connected with a pipeline liquid control device liquid metering pump, and a pipelineport in the reactor is provided with a nozzle.
10. The hydrogen production apparatus according to claims 4 to 8, characterized in that: the aluminum powder interlayer in the reactor is provided with a liquid level sensor which is connected with a controller, and the controller is connected with a liquid pump of a liquid discharge control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021042799A CN1162320C (en) | 2002-03-04 | 2002-03-04 | Hydrogen preparing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021042799A CN1162320C (en) | 2002-03-04 | 2002-03-04 | Hydrogen preparing method and device |
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| CN1384044A true CN1384044A (en) | 2002-12-11 |
| CN1162320C CN1162320C (en) | 2004-08-18 |
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| CNB021042799A Expired - Fee Related CN1162320C (en) | 2002-03-04 | 2002-03-04 | Hydrogen preparing method and device |
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004052775A1 (en) * | 2002-12-12 | 2004-06-24 | Erling Reidar Andersen | Method for producing hydrogen |
| CN101615683B (en) * | 2009-06-16 | 2010-12-29 | 华南理工大学 | Fast hydrogen making device capable of automatically starting in power-down condition |
| CN101284646B (en) * | 2008-02-29 | 2011-07-20 | 上海大学 | Hydrogen preparing process by reacting pure alminuim powder with water |
| CN102153048A (en) * | 2011-01-05 | 2011-08-17 | 上海大学 | Continuous controllable hydrogen-preparing device by using aluminum based compound at normal temperature |
| CN102167285A (en) * | 2011-03-02 | 2011-08-31 | 上海师范大学 | Portable, safe and controllable hydrolysis hydrogen-producing device |
| CN101489917B (en) * | 2006-10-16 | 2012-05-02 | 松下电器产业株式会社 | Hydrogen production apparatus and fuel cell system comprising the same |
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