Proton exchange membran (PEM) water electrolysis for green hydrogen production
Green hydrogen produced via the proton exchange membrane electrolysis (PEMEL or PEM) method is one of the key elements of a sustainable and climate-neutral energy economy. It is generated in electrolysis systems powered by electricity from renewable sources, such as solar or wind energy, with water as the raw material. The reaction products of this electrochemical process are hydrogen and oxygen. No carbon emissions are produced, so water electrolysis is a particularly climate-friendly process.
Product Theory
PEM electrolysis involves the use of a proton exchange membrane (PEM) made from a special polymer. This PEM separates the anode and cathode electrically. At the start of the process, liquid, ultrapure water is supplied to the anode side of the electrolyzer. When a voltage is then applied to the two electrodes, protons are released and migrate through the membrane. During this electrochemical process, water is broken down into hydrogen and oxygen, with hydrogen forming at the cathode and oxygen at the anode. The advantages of this method include high power density, excellent flexibility, and minimal space requirements. We manufacture the most important component of a PEM water electrolysis technology - the stack. This is, in a sense, the beating heart of every electrolysis system, because hydrogen is produced in its cells
Advantage
Ultra Pure Hydrogen:
The purity of hydrogen can be up to 99.999%, the dew point is ≤ -70ºC, and the pressure is up to 3.2MPa.
Product structure:
Imported proton exchange membrane electrolyzer pure water to produce hydrogen, with no need of alkali solutions.
Zero pole pitch, high activity SPE (PEM) catalytic electrode.
Bipolar multi-element stack structure with excellent mass and heat transfer chemical process performance.
Selection of materials for bipolar multi-element electrolytic cells with excellent electrochemical, corrosion resistance, passivation resistance, etc.
Product Features:
Electrolysis of pure water for hydrogen production, no corrosion, no pollution, high hydrogen purity;
Detailed Photos
Product Parameters
Hydrogen production Nm³/h |
Hydrogen production pressure |
Purity of hydrogen production |
Rated Power(kW) |
DC Power consumption |
water quality requirment |
Start-up Time(Warm/Cold) |
1 |
≤3MPa (adjustable ) |
99.99% |
4.2 |
≤4.2kWh/Nm³H2 |
≤0.1μS/cm |
10s/8min |
5 |
22 |
50 |
210 |
200-600 |
840 |
Application
Applications:
Hydrogen production and storage with renewable energy, cooling in thermal power plants, auxiliary gas for semiconductor and electronics industries, gas for scientific research experiments, etc.
Safe operation:
The system can monitor its safety, performance and can run automatically. It also allows remote monitoring and fault diagnosis.
Cooperative Case