PRODUCTION OF GREEN HYDROGEN
BY ELECTROLYSIS METHODS USING GREEN ENERGY SOURCES
To use hydrogen for energy, it must be separated from the other elements in the molecules where it occurs. Hydrogen atoms can be separated from water, hydrocarbons, and biomass.
The methods Hy2gen AG is using for the producing of green hydrogen is electrolysis (water splitting) alkaline and PEM technologies. The electrolysis proces at Hy2gen AG uses only electricity of renewable energy sources, mainly hydro power.
Electrolysis is a process that splits hydrogen from water using an electric current. The process can be used on a large or small scale. Electrolysis does not produce any emissions other than hydrogen and oxygen, and the electricity used in electrolysis comes from renewable sources such as hydro, wind or solar energy.
Like fuel cells, electrolyzers consist of an anode and a cathode separated by an electrolyte. Different electrolyzers function in slightly different ways, mainly due to the different type of electrolyte material involved.
Polymer Electrolyte Membrane Electrolyzers
In a polymer electrolyte membrane (PEM) electrolyzer, the electrolyte is a solid specialty plastic material.
Water reacts at the anode to form oxygen and positively charged hydrogen ions (protons).
- The electrons flow through an external circuit and the hydrogen ions selectively move across the PEM to the cathode.
- At the cathode, hydrogen ions combine with electrons from the external circuit to form hydrogen gas.
Anode Reaction: 2H2O → O2 + 4H+ + 4e–
Cathode Reaction: 4H+ + 4e– → 2H2
Alkaline electrolyzers operate via transport of hydroxide ions (OH–) through the electrolyte from the cathode to the anode with hydrogen being generated on the cathode side. Electrolyzers using a liquid alkaline solution of sodium or potassium hydroxide as the electrolyte have been commercially available for many years. Newer approaches using solid alkaline exchange membranes as the electrolyte are showing promise on the lab scale.
CO2 NEUTRAL PRODUCTION OF HYDROGEN
Hy2gen AG develops and operates production facilities of green hydrogen. We produce hydrogen via electrolysis using 100% energy from renewable energy resources. We deliver CO2 neutral hydrogen. This is called green hydrogen. Green Hydrogen: 100% CO2 neutral hydrogen production. Worldwide net of production facilities envisaged