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Hydrogen generating method, hydrogen use method, and electricity generating system

A production method and technology of a power generation system, which can be applied to power system fuel cells, circuits, fuel cells, etc., and can solve problems such as low hydrogen production efficiency

Inactive Publication Date: 2012-12-26
HIROSHIMA UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the electrolysis of water requires more energy than can be obtained therefrom, there is also the problem of low hydrogen production efficiency

Method used

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  • Hydrogen generating method, hydrogen use method, and electricity generating system
  • Hydrogen generating method, hydrogen use method, and electricity generating system
  • Hydrogen generating method, hydrogen use method, and electricity generating system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Electrolysis of anhydrous liquid ammonia was performed, and electrochemical properties were evaluated by constant pressure measurement and cyclic voltammetry (CV) measurement. In addition, in the constant voltage measurement, the pressure in the electrolytic cell is continuously measured. Then, gas characteristic evaluation was performed by measuring the gas chromatographic curve of the gas in the cell after the measurement.

[0065] Anhydrous liquid ammonia and KNH as electrolyte 2 Throwing into an electrolytic cell (hereinafter also simply referred to as "cell"). As the electrolytic cell, a stainless steel high-pressure cell (two electrodes) was used. Electrolysis is a platinum plate (20mm x 20mm x 0.2mm). The amount of anhydrous liquid ammonia added is 12ml, KNH 2 is 1M. The liquid temperature of ammonia was 25°C. In addition, the electrode under the liquid surface is 10 mm x 10 mm x 0.2 mm.

[0066] (Constant pressure measurement)

[0067] Anhydrous liquid a...

Embodiment 2

[0073] Except for KNH 2 The CV measurement was carried out under all the same conditions as in Example 1 except that the addition amount was 5M.

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Abstract

Hydrogen can be efficiently generated with a small amount of electrolysis energy. Generate hydrogen by electrolysing liquid ammonia having electrolytes added thereto, and generate electricity by reacting the generated hydrogen with oxygen. As the electrolysis energy for the liquid ammonia is low, a large amount of hydrogen can be efficiently generated. The electrical energy obtained from the hydrogen generated by electrolysis is greater than the electrical energy needed for the electrolysis of the liquid ammonia. Therefore, a small electricity source can be converted to a large electrical power and used.

Description

technical field [0001] The present invention relates to a hydrogen production method, a hydrogen utilization method, and a power generation system. Background technique [0002] Hydrogen is widely used in industrial fields including petroleum refining, chemical industry, and automobile industry. Especially in recent years, attention has been paid to hydrogen as a future energy source, and research into fuel cells, hydrogen engines, and the like is being carried out. [0003] Water is a liquid substance containing 11% by mass of hydrogen. As a method for generating hydrogen, electrolysis of water is known. However, the electrolysis of water requires more energy than the resulting energy. Therefore, it is not cost-effective to operate a fuel cell using hydrogen obtained by electrolysis of water. [0004] In addition, Patent Document 1 discloses an electrolytic cell for hydrogen generation that uses an ammonia solution as a hydrogen source to generate hydrogen. [0005] pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/02
CPCH01M2250/20Y02T90/32H01M8/0656C25B1/02Y02E60/50Y02E60/36Y02T90/40
Inventor 小岛由继市川贵之铃木启史花田信子
Owner HIROSHIMA UNIVERSITY
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