Hydrogen Drying With H2DRY
Bilfinger presents a pioneering plant for the drying of green hydrogen. Our innovative absorption drying technology efficiently removes moisture from hydrogen using a special scrubbing liquid - based on absorption drying, which is already being implemented on a large scale for natural gas.
In this way, Bilfinger is contributing to ensuring that hydrogen can be supplied in line with demand in the future. This requires functional storage options, such as caverns from natural gas storage. During storage, the hydrogen becomes contaminated by moisture and the cavern's own substances. These must be removed again during withdrawal.
H2DRY Plant at EWE in Rüdersdorf
Schematic illustration of the principle
Technical data
- Floor area: 2.64 x 3.04 m
- Height: 9.8 m
- Weight: approx. 9.1 t
- Year of construction: 2023
Absorber
- Volume: 230 l
- Operating pressure: 10 to 100 barg
- Operating temperature: +5 to 40 °C
- H2 volume flow: 100 to 1,000 Nm³/h
- H2O Moisture content gas outlet: 20 to 40 mg/Nm³
- H2O Dew point gas outlet: -50 to -10 °C
- Absorbent: Triethylene glycol (glycol)
Regeneration
- Volume: 500 l
- Operating pressure: <0.05 barg
- Operating temperature: 180 to 204 °C
- Glycol mass flow: 30 kg/h
- Heat requirement: 3 to 10 kW
Scaling Up on an Industrial Level
Grafik
Process data:
Volume flow: approx. 100,000 to 1,200,000 Nm³/h
Operating pressure: 15 to 80 barg
Ambient temperature: -29 to +40°C
H2O moisture content at outlet: 20 to 40 mg/Nm³
H2O Dew point at outlet: -10 to -50 °C
Medium: Triethylene glycol
Technical data
Floor area: approx. 55 m x 25 m
Height: approx. 15 m
Our Partners
Press relase
"Forschungsprojekt mit H2DRY Anlage in der nächsten Phase", June 16, 2023 (German only)
Director Business Development Energy Transition
