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Alkaline solution electrolytic hydrogen production device and hydrogen production method

A hydrogen production device and alkaline solution technology, applied in the electrolysis process, electrolysis components, separation methods, etc., can solve the problems of low electrolysis efficiency, inconvenient control of the hydrogen production process, and unusable production practice

Active Publication Date: 2016-11-16
YANGZHOU CHUNGDEAN HYDROGEN EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The shortcomings of the existing technology are: the existing hydrogen production system mainly solves the problem of how to produce hydrogen theoretically, but cannot be used in production practice. It fails to solve the problem of hydrogen impurity in the initial state. How to efficiently The problem of washing hydrogen, its electrolysis efficiency is not high, the hydrogen production process is inconvenient to control, and the continuity of production is poor

Method used

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Embodiment 2

[0031] A method for producing hydrogen by electrolysis using the above-mentioned device, which uses KOH lye as the electrolyte, the mass percentage concentration of alkali in the lye in the electrolytic cell 1 is 25%, the working temperature of the electrolytic cell 1 is 85-90°C, and the rated The current is 900A, the voltage is 48V; V with a mass concentration of 0.2% is added to the electrolyte 2 o 5 .

Embodiment 3

[0033] Another method for producing hydrogen by electrolysis using the above-mentioned device, which uses KOH lye as the electrolyte, the mass percentage concentration of alkali in the lye in the electrolytic cell 1 is 30%, the working temperature of the electrolytic cell 1 is 90°C, and the rated current 950A, voltage 55V; V with a mass concentration of 0.3% is added to the electrolyte 2 o 5 .

Embodiment 4

[0035] The third method utilizes the above-mentioned device to produce hydrogen by electrolysis, which uses NaOH lye as the electrolyte, the mass percentage concentration of alkali in the lye in the electrolytic cell 1 is 25 to 30%, and the working temperature of the electrolytic cell 1 is 85 to 90 ℃, rated current 900~950A, voltage 48~55V; V with a mass concentration of 0.2~0.3% is added to the electrolyte 2 o 5 .

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Abstract

The invention discloses an alkaline solution electrolytic hydrogen production device in the field of hydrogen production devices. The alkaline solution electrolytic hydrogen production device comprises a direct current power supply, an electrolytic cell, a hydrogen separator and an oxygen separator, wherein the bottom of the electrolytic cell is provided with an alkaline solution inlet; the upper part of an anode zone of the electrolytic cell communicates with a circulating liquid inlet of the oxygen separator, and a gas phase outlet at the top of the oxygen separator communicates with the atmosphere through a valve; the upper part of a cathode zone of the electrolytic cell communicates with a circulating liquid inlet of the hydrogen separator, a gas phase outlet at the top of the hydrogen separator is connected to a hydrogen washing device, and the hydrogen washing device communicates with an inlet of a gas-water separator through a three-way valve I; circulating liquid outlets at the bottoms of the hydrogen separator and the oxygen separator communicate with the alkaline solution inlet sequentially via an alkaline solution cooler, an alkaline solution circulating pump and an alkaline solution filter; and a gas outlet of the gas-water separator is connected to a hydrogen storing tank through a three-way valve II and a drying system. A KOH or NaOH solution with a 25-30% mass concentration is used as an electrolyte. The device can safely produce hydrogen and is high in hydrogen producing efficiency, low in equipment investment and great in production continuity.

Description

technical field [0001] The invention relates to a hydrogen production device and a production method, in particular to an electrolytic hydrogen production device and a hydrogen production method thereof. Background technique [0002] In the prior art, there is a hydrogen production system by electrolyzing water, its application number: 201210422579.1; application date: 2012-10-30; the device includes a power supply device, an electrolyzer, a hydrogen separator, an oxygen separator, a purification tower, and a power supply device It is connected with the electrolytic cell, the hydrogen separator and the oxygen separator are respectively connected with the electrolytic cell, and the hydrogen separator and the purification tower are connected with each other. In the electrolyzed water hydrogen production system of the present invention, the alkaline liquid is electrolytically separated to obtain hydrogen, and the hydrogen is purified through a purification tower to obtain high-...

Claims

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Application Information

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IPC IPC(8): C25B1/08C25B9/00C25B15/08B01D53/26
CPCB01D53/26C25B1/04C25B9/00C25B15/08C25B9/73Y02E60/36
Inventor 宋维生潘杰
Owner YANGZHOU CHUNGDEAN HYDROGEN EQUIP
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