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Vehicular hydrogen preparing method and device

A preparation device and hydrogen technology, applied in the direction of electric vehicles, electrical components, vehicle energy storage, etc., can solve the problems of scarcity of catalyst precious metals, potential safety hazards, unfavorable long-term storage, etc., and achieve low cost of hydrogen production, simple structure, and automation high effect

Inactive Publication Date: 2002-12-11
天津海蓝德能源技术发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the defects in the prior art, and overcomes the scarcity and high price of precious metals used in the catalyst of the prior method, NaBH 4 The aqueous solution will self-hydrolyze to produce hydrogen, which has potential safety hazards and is not conducive to long-term storage. A new vehicle-mounted hydrogen preparation method and device are provided.

Method used

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  • Vehicular hydrogen preparing method and device
  • Vehicular hydrogen preparing method and device
  • Vehicular hydrogen preparing method and device

Examples

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Effect test

Embodiment 1

[0034] Refer to attached Figure 6 , fuel cell hydrogen production method, adding 50g of NaBH with a purity of 97% in the reactor 4 Crystalline powder, the liquid feeding rod with a pore size of 5 μm made by the porous sintering process is used for quantitative small hole spraying method to add Co 2+ CoCl with a concentration of 0.14mol / L 2 The aqueous solution is sprayed with a 12V high-pressure pump, and the flow rate is 0.241 / h. Water cooling is used to control the reaction temperature within the range of 40-60° C., a total of 0.05 L of solution is added, and hydrogen gas is produced by reaction.

Embodiment 2

[0036] Refer to attached Figure 6 , fuel cell hydrogen production method, the 25g purity of 97% NaBH 4 with 25g of CaH with a purity of 97% 2 The powder is mixed evenly with the catalyst containing 8g of active material Co, and the carrier of the catalyst is Al 2 o 3 , into the reactor. Water is fed into the reactor feeding rod using a 12V high-pressure pump. The aperture of the feeding rod is 50 μm, and the flow rate of quantitative small hole injection is controlled at 0.3 l / h. The reaction temperature was controlled at 50-70° C., 0.05 L of the solution was added, and hydrogen gas was produced by reaction.

Embodiment 3

[0038] Refer to attached figure 1 , 2 , 3, 4, 5. The hydrogen preparation device for fuel cell vehicles is composed of a reaction device, a control device and a purification device. The connection structure and method are as follows: reactor 1 is 5 groups, through liquid pipelines, solenoid valve 2, check valve 3, cumulative flow measuring instrument 7. The 12V high-pressure pump 6 is connected to the liquid storage tank 5, and the storage battery 4 is the power source for starting the preparation device. The reactor 1 is connected with a buffer tank 14 , a pressure reducing valve 16 , an instantaneous flow measuring instrument 12 and a hydrogen utilization device 13 . The buffer tank 10 , the inlet electromagnetic valve 9 and the outlet electromagnetic valve 11 are arranged side by side with the electromagnetic valve 15 after the buffer tank 14 , and are connected with the membrane separation hydrogen purifier 17 after being merged. The buffer tank 14 is equipped with a pr...

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Abstract

The present invention relates to the preparation of hydrogen. In the vehicular hydrogen preparing process, solid matter CaH2 a / o NaBH4, catalyst containing active matter Fe, Co, Ni, Cu or Mn and water are subjected to reaction. The hydrogen preparing apparatus includes reactors, liquid tanks, buffering tank, hydrogen purifier, depressing valve, flow rate measuring meter, pressure sensor, cooling tank with temperature sensor, etc. connected together, and the control signal from the circuit is fed to the controller. The present invented process is low in hydrogen preparation cost, high in safety and the apparatus is simple in structure, and is especially suitable for in automobile with fuel battery.

Description

technical field [0001] The invention belongs to the technical field of hydrogen preparation, and in particular relates to a method and a device for preparing vehicle-mounted hydrogen used in fuel cells. Background technique [0002] A hydrogen-oxygen fuel cell is a power generation device that directly converts the chemical energy of hydrogen oxidation into electrical energy without combustion. Compared with traditional internal combustion engines, it is not limited by the Carnot cycle in the energy conversion process, so its energy conversion rate is much higher than that of internal combustion engines. At the same time, it also has the advantages of clean exhaust, low noise, no pollution to the environment, good reliability and maintainability, and high specific energy, making it the first choice for power sources for mobile tools. Moreover, fuel cells have been available as early as 1839. In the 40 years since the 1960s, the technology has developed rapidly. However, th...

Claims

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Application Information

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IPC IPC(8): B60L11/18C01B3/06H01M8/0656
CPCY02E60/36Y02E60/50Y02T10/70
Inventor 黄岳祥程亮
Owner 天津海蓝德能源技术发展有限公司
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