Sodium borohydride hydrogen making reaction device and method thereof

A sodium borohydride and reaction device technology, applied in the field of sodium borohydride hydrogen production reaction device, can solve the problems of being unsuitable for portable low-power fuel cell systems, unsafe hydrogen storage and transportation, and bulky energy storage systems. Convenience, high energy efficiency, and high hydrogen purity

Inactive Publication Date: 2009-01-28
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Direct hydrogen storage methods include gaseous high-pressure storage, alloy solid-state storage, and low-temperature liquid storage, but all of them have problems such as low energy storage density, bulky energy storage system, and unsafe hydrogen storage and transportation.
Indirect hydrogen supply is currently researched more on the reforming

Method used

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  • Sodium borohydride hydrogen making reaction device and method thereof
  • Sodium borohydride hydrogen making reaction device and method thereof
  • Sodium borohydride hydrogen making reaction device and method thereof

Examples

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Effect test

Embodiment 1

[0034] Embodiment 1: According to figure 1 The shown sodium borohydride hydrogen production device adopts a sodium borohydride solution with a concentration of 10%, the flow rate of the low-power hydraulic pump 12 is 30ml / min, and the initial setting on-off time ratio of the high-speed solenoid valve 11 is 1:6. The outlet pressure set by the decompression valve 24 is 0.1MPa. The pressure sensor 7 collects the pressure signal in the reaction chamber and feeds the signal back to the control board 9, and compares it with the pressure 0.1-0.2Mpa set by the user to adjust the high-speed solenoid valve. on-off time ratio. The hydrogen sensor 4 collects the hydrogen concentration signal outside the reaction chamber and feeds the signal back to the control board. It is found that the concentration is not greater than the set safety value of 4%, and the system works normally. Thermistor 2 19 and thermistor 3 20 respectively collect the hydrogen temperature signals at the inlet and out...

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PUM

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Abstract

The invention discloses a reaction device for making hydrogen with sodium borohydride and a method thereof. The device comprises a reaction device and a control device. A micro-processing unit of the control device is electrically connected with an analog-digital converting circuit, a keyboard, an LCD display screen, a radiator and an isolation drive circuit respectively; the analog-digital converting circuit is electrically connected with a hydrogen sensor, a pressure sensor and a thermistor respectively; the isolation drive circuit is electrically connected with a low-power hydraulic pump and a high-speed solenoid valve respectively; one pressure sensor, one thermistor and the hydrogen sensor are positioned on a reaction chamber. With regard to the method for making the hydrogen with the sodium borohydride, the low-power hydraulic pump is adopted to control the reaction speed and the hydrogen yield by automatically regulating the flow of the sodium borohydride solution which is added to the reaction chamber and according to reaction conditions. The device for making the hydrogen with the sodium borohydride has the advantages of high reaction efficiency in making the hydrogen, high automation degree, being easy to control the reaction speed, being safe and reliable in use, convenient and simple operation, and the like; and is especially suitable for supplying hydrogen source in a movable manner.

Description

technical field [0001] The invention relates to the preparation of hydrogen, in particular to a sodium borohydride hydrogen production reaction device and a method thereof. The invention is used to provide a portable hydrogen source with high energy density for a hydrogen fuel cell, belongs to the development of new energy technology, and realizes the automatic control of hydrogen production from sodium borohydride. Background technique [0002] The current utilization and development of hydrogen-oxygen fuel cells, especially the development of proton exchange membrane fuel cells, has become the frontier technology field in the new century to overcome the energy crisis and environmental pollution in the world. The proton exchange membrane fuel cell system with excellent performance and relatively mature technology has a wide application field and a large demand, and has been widely concerned by people. However, an important problem that needs to be solved urgently for the l...

Claims

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Application Information

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IPC IPC(8): C01B3/06
CPCY02E60/36
Inventor 汤勇肖慧李金恒李勇欧元贤胡志华
Owner SOUTH CHINA UNIV OF TECH
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