Low-cost hydrogen production method by water electrolysis capable of occurring over a wide power supply voltage range

Abstract

The invention relates to a novel method of hydrogen production, especially relates to a low cost method of producing hydrogen used as living fuel and vehicle fuel. A system comprises electric energy input apparatuses (A1, A2,..., An), reverse voltage stabilization apparatuses (B1, B2,..., Bn), an electrolytic tank (C), and a hydrogen storage apparatus (D). A main function of the system is to utilize external energy such as wind energy, solar energy, tidal energy, and wave energy effectively. The energy is transmitted into direct current with a constant output voltage through the electric energy input apparatuses and the reverse voltage stabilization apparatuses. The direct current is supplied to the electrolytic tank for hydrogen production by water electrolysis to generate hydrogen with high purity. The problem of natural separation of hydrogen and oxygen is solved by an effective storage method, and hidden danger of mixture of hydrogen and oxygen is eliminated, so as to realize safestorage of hydrogen. In addition, costs of hydrogen preparation and storage can be reduced dramatically according to the method.

Description

technical field [0001] The invention relates to a low-cost hydrogen production method by electrolyzing water, especially a low-cost hydrogen production method used as living fuel and vehicle fuel. Background technique [0002] One of the biggest problems facing energy conservation and environmental protection is the rapid increase in emissions of greenhouse gases such as carbon dioxide. At the same time, a large number of mountain residents solve the problem of living fuel by chopping firewood, which further accelerates the deterioration of the natural environment. The current solution to this problem is to promote the use of biogas or liquefied petroleum gas in rural households in mountainous areas. However, since these two fuels are hydrocarbon fuels, the exhaust gas after combustion is carbon dioxide. Therefore, although this method can solve the problem of mountain residents The problem of vegetation destruction due to cutting wood, but cannot reduce carbon dioxide emiss...

AI Technical Summary

Problems solved by technology

From the perspective of environmental protection, hydrogen production by electrolysis of water is undoubtedly the best choice, but in the current situation, the power consumption of hydrogen production by electrolysis of water is very large, the required electricity costs are high, and it is not economical, so it is commercially practical. Low sex

In addition, the volume of hydrogen is large, and the storage conditions are limited, especially for drives such as vehicles, it is not easy to solve the storage problem of hydrogen required for long distances.

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