Sodium borohydride hydrogen making reaction device and method thereof

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...

AI Technical Summary

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 of methanol or ethanol under the action of a catalyst to produce hydrogen, but the CO content in the reformed gas is too high, and it is necessary to develop a special separation membrane to purify hydrogen. The current separation membrane technology is not yet mature, and the cost Expensive, not suitable for portable low power fuel cell systems

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