Green hydrogen production through electrolysis
In green hydrogen production, electrolysis is used to break down water into its individual elements; hydrogen which is compressed and sent to storage, and oxygen which is either stored or vented to the atmosphere.
There are different electrolyzers that can be used:
- Proton Exchange Membrane (PEM) Electrolyzers
- Alkaline Electrolyzers
- Solid Oxide Electrolyzers
Proton Exchange Membrane (PEM) Electrolyzers
PEM electrolyzers use a solid polymer electrolyte that only allows hydrogen ions (protons) to pass through to form hydrogen gas on the cathode side.
Alkaline Electrolyzers
Alkaline electrolyzers use an electrolyte solution (usually potassium hydroxide) which allows hydroxide ions through leaving hydrogen gas bubbles.
Solid Oxide Electrolyzers
A solid ceramic material is used as the electrolyte at high temperature. Water is used in the form of steam which results in higher energy but produces ultra-pure hydrogen with great efficiency.
Hydrogen Production by PEM Electrolysis of Water
Solutions for green hydrogen production
Regardless of the electrolyzer type, Parker technologies are essential to protect the process, to maintain efficiency and to purify the hydrogen gas stream to the required high standard. Parker’s broad filtration portfolio includes liquid filtration, gas separation, purification and cooling, hydraulics, fluid conveyance and sealing.
- Electrolyzer Feedwater Purification
- Feedwater/Lye Filtration
- Electrolyzer Gas Water Separation
- Electrolyzer System Purge/Inertisation
- Electrolyzer Cooling
- Hydrogen Gas Purification
- Electrolyzer Hydraulic Power
- Fluid Conveyance for Electrolysis
- Electrolyzer Sealing Solutions
Learn how Parker is purposefully leading the way in hydrogen production.