Hydrogen compression after electrolysis
Solution | Diaphragm compressor
Application | H2 on-site generation and compression for the hydrogen refuelling station
Country | Germany
Application | H2 on-site generation and compression for the hydrogen refuelling station
Country | Germany
The pressures of the hydrogen produced by a PEM electrolyser are 30-100 bar and must be increased to the required 700 bar for vehicle refuelling. The MRE 300 diaphragm compressor was used for this process, which compresses the hydrogen in two stages: first to 300 bar and then to 935 bar to make it available in high-pressure buffer storage tanks.
Refuelling takes place from this cascaded storage. In the first step of the refuelling cycle, 300 bar is transferred to the vehicle tank. Refuelling then continues from the 935 bar storage tank until the vehicle tank reaches the required 700 bar.
| Series | MRE 300 |
| Description | 1-stage |
| Suction pressure | 30-100 bar(a) |
| Final pressure | 935 bar(a) |
| Volume flow | 29 Nm3/h |
| Gas state | dry |
| Compressor cooling | water-cooled |