Aluminum alloy/hydroboron hydrolysis reaction-based miniature hydrogen production system and hydrogen production method

Abstract

The invention relates to an aluminum alloy / hydroboron hydrolysis reaction-based miniature hydrogen production system and a hydrogen production method thereof, belonging to the field of hydrogen preparation technique. The aluminum alloy / hydroboron hydrolysis reaction-based miniature hydrogen production system comprises a hydrogen production generator and a liquid storage tank, wherein the hydrogen production generator is coated by the liquid storage tank; an outlet at the bottom end of the liquid storage tank is connected with a hydrogen production generator liquid delivery pipe, a liquid delivery control valve, a stainless steel pipe and a reaction region; the top end of the liquid delivery pipe is connected with a hydrogen storage chamber; the hydrogen production generator is divided into a reaction chamber and the hydrogen storage chamber by a separation film; and two symmetrical circular truncated cones are arranged at the bottom of the reaction region. The hydrogen production method of the aluminum alloy / hydroboron hydrolysis reaction-based miniature hydrogen production system is characterized in that the hydroboron solution input velocity of the liquid delivery control valve is regulated to realize the start / stop of the hydrolysis reaction of the hydrogen production system, so as to stabilize the hydrogen pressure of the hydrogen production system. The aluminum alloy / hydroboron hydrolysis reaction-based miniature hydrogen production system and the hydrogen production method have the characteristics of being simple in structure, and safe and reliable, and suitable for supplying hydrogen for portable fuel cells or internal combustion engines.

Description

technical field [0001] The invention belongs to hydrogen production and storage technology, and in particular relates to a micro hydrogen production system and hydrogen production method based on aluminum alloy / borohydride hydrolysis reaction. Background technique [0002] With the increasingly prominent global environmental and energy issues, the research on automobile energy saving and reduction of harmful emissions has received unprecedented attention. Since the calorific value of hydrogen (142.35kJ / g) is 2.8 times that of gasoline and 4 times that of coal, and the product of hydrogen combustion and electrochemical reaction is water, hydrogen is considered to be the most potential, low-carbon and efficient energy source in the future carrier. As one of the best ways to utilize hydrogen energy, fuel cells have achieved rapid development in recent years. Fuel cells are an ideal source of power for vehicles such as vehicles, and can also be used as portable power sources a...

AI Technical Summary

Problems solved by technology

However, in practical applications, a large amount of heat and insoluble substances generated by the hydrolysis of aluminum / borohydride lead to agglomeration of hydrolyzed products and adhere to the surface of the aluminum alloy, preventing the continuous progress of the reaction.

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