Electrochemical technology for high pressure hydrogen and oxygen generation

Scope of use

Electrochemical technology of hydrogen generation and created on the basic of it the high pressure electrolyser, which allow to use substandard electricity, which generated by consumption of renewable energy sources, energy of wind and sun to generate ecological clear energy carrier – hydrogen and gaseous oxygen. Design is used for industrial units, where hydrogen used as technological product (chemical, metallurgy, food industry, etc.) or as clear energy carrier (energy, transport , communal sphere).

Short description

Energy saving technology of electrochemical hydrogen and oxygen generation, has been developed, with electrode material of metal with variable valence, which makes it possible to reduce power to production 1m³ of hydrogen to 3,85 ÷ 4,1 kW per hour (conventional alkaline electrolysers have energy at 4,3 kW per hour for 1 m³). Technologically achievable interval of gas pressure is 0,1-50,0 MPa at a range of operating temperatures of the process of electrolysis 350 ÷ 423 K. The proposed construction allows for a given performance electrolyzers, by combining a number of modules in a single unit.

Expected properties

The main features of the development is the use chemical activity electrodes and the separation in time and space electrolytic water decomposition processes and the generation of hydrogen and oxygen. Working gas pressure is limited to boundary solubility of gases in the electrolyte and the strength of basic parts and fittings. In its technical level, ease of installation and maintenance, reliability and safety of the proposed system outperforms existing counterparts.

Advantages

The realization of the proposed technology provides:

• Reducing energy consumption per unit of product produced.
• Generation of hydrogen and oxygen under high pressure without the use of compressor technology.
• Increased reliability and safe operation of the system.
• High electrochemical activity of the electrodes without platinum group metals, which reduces the cost of basic equipment.

Competitors

Norsk Hydro (Norway),
Lurgi (FRG), University of Oklahoma (USA),
General Electric Co (USA);
corporation Hydrogenics Europe N.V.

Stage of design

For the purpose of practical implementation of the proposed technology created acting samples of electrolyzers with capacity of 1.0 m³ with a pressure 15.0 MPa.
Development passed laboratory and full-scale tests.

Intellectual property

• Pat. Number 90421 Ukraine MPK51, S25V 1/02; S25V 1/04; S25V 1/12. Electrolysis plant to produce hydrogen and oxygen pressure / SoloveyV.V., IvanovskyyO.I., ShevchenkoA.A., ZhyrovO.S., MakarovO.O. - Publ. 26.04.2010, Bull. №8.
• Pat. Number 98 705 Ukraine MPK51, S25V 1/02; S25V 9.4. The method of electrolysis plant for hydrogen and oxygen pressure / SoloveyV.V., ShevchenkoA.A., ZhyrovO.S., MakarovO.O. - Publ. 11.06.2012, Bull.№11.

Contact Information

Executive: A.N. Podgorny Institute of Mechanical Engineering Problems of National Academy of Sciences of Ukraine

Project № 41 "Energy ecological principles of creation of hydrogenous technologies for carcinogenic compound neutralization for transport and stationary energy systems"

Контактна особа:

Solovey Victor V.

Е-mail: solovey@ipmach.kharkov.ua

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