Compressed hydrogen dryers H2-DRY
Compressed Hydrogen Dryers (H2 Dryers) are designed for continuous separation of water vapour from compressed hydrogen, thus lowering its pressure dew point.
Hydrogen is increasingly recognised as one of the key pillars of the energy transition, as it enables the decarbonisation of sectors where electrification is not the optimal solution.
It is a vector for renewable energy storage, alongside batteries, and transport, ensuring back up for seasonal variations and connecting production locations to more distant demand centres. Despite its advantages, its practical application depends directly on gas quality, as impurities in hydrogen present serious risks to the safe operation of fuel cells and other applications.
Hydrogen production through electrolysis or other methods (e.g. steam reforming, biomass gasification) generates by-products such as oxygen, moisture, and other gases.
The presence of these impurities may lead to:
• reduced efficiency of fuel cells,
• corrosion and mechanical damage,
• safety risks during storage and transportation.
The drying operation is based on adsorption. Drying of the gas takes place under pressure inside two pressure columns filled with adsorbent material. Drying phase is followed by column swithcover after saturation of the adsorbent.
The H2-DRY operates alternatly over three main phases of the process (adsorption, heating, cooling).
The type of regeneration is heat regenerated. Depending on the existence and type of available fluids to conduct this regeneration/cooling, we then adapt the components of the hydrogen dryer, to ensure that a strict minimum of gas will be lost (1-2% maximum when external dry gas is available for regeneration/cooling for instance).
OMEGA AIR hydrogen dryers and purifiers use temperature swing adsorption (TSA) technology.
TSA technology is a hydrogen purification method that is using temperature-dependent adsorption characteristics of gas molecules on solid adsorbents.
Hydrogen is a highly combustible gas, and compressed hydrogen dryers are normally custom made, to meet specific project requirements. Provided that the level of oxygen (or any other reactive component) is reduced to a minimum in the gas mix, several versions of dryer are available, based on operating pressure, temperature and requested pressure dew point.
Characteristics of H2 dryers
| Operating pressure | up to 45 bar |
| Inlet temperature | up to 80 °C |
| Ambient temperature | 1,5 to 50 °C (check also blower suction conditions) |
| Pressure dew point | -40 °C (lower PDP on request) |
| Voltage, Frequency | 400 V, 50 Hz |
| Protection class (controller) | IP 65 |
| Communication | Modbus TCP/IP, Profinet TCP/IP (other on request) |
| Filter requirement (inlet)* | Super fine coalescing |
| Filter requirement (outlet)* | Dust filter; 1μm |
| Column insulation | YES |
| Valve position switches | YES |
| Certification | CE/ATEX (IECEx on request) |
| MODEL | Capacity (m3/h) | Capacity (kg/h) | Electrolyser (MW) |
| H2-DRY 15 HP | 52,5 | 4,7 | 0,25 |
| H2-DRY 30 HP | 105 | 9,3 | 0,5 |
| H2-DRY 60 HP | 210 | 18,7 | 1 |
| H2-DRY 180 HP | 630 | 56,1 | 3 |
| H2-DRY 300 HP | 1.050 | 93,4 | 5 |
| H2-DRY 600 HP | 2.100 | 186,9 | 10 |
| H2-DRY 1200 HP | 4.200 | 373,8 | 20 |
| H2-DRY 2500 HP | 8.400 | 747,6 | 40 |
| H2-DRY 3600 HP | 12.600 | 1121,4 | 60 |
| H2-DRY 5000 HP | 16.800 | 1495,2 | 80 |
| H2-DRY 6500 HP | 21.000 | 1869,0 | 100 |
| MODEL | Capacity (m3/h) | Capacity (kg/h) | Electrolyser (MW) |
| H2-DRY 15 X | 52,5 | 4,3 | 0,25 |
| H2-DRY 30 X | 105 | 8,7 | 0,5 |
| H2-DRY 60 X | 210 | 17,4 | 1 |
| H2-DRY 180 X | 630 | 52,3 | 3 |
| H2-DRY 300 X | 1.050 | 86,8 | 5 |
| H2-DRY 600 X | 2.100 | 173,7 | 10 |
| H2-DRY 1200 X | 4.200 | 347,3 | 20 |
| H2-DRY 2500 X | 8.400 | 694,7 | 40 |
| H2-DRY 3600 X | 12.600 | 1042,0 | 60 |
| H2-DRY 5000 X | 16.800 | 1389,4 | 80 |
| H2-DRY 6500 X | 21.000 | 1736,7 | 100 |
Applications
• Power-to-gas (Electrolysis)
• Housing (Lighting, Heating)
• Transport
• Electronics industry
• Heat Treatment
• Fuel industry
• Metal Manufacturing
• Cooling industry
• Power Plant
• Chemicals
• Transport
• Electronics industry
• Heat Treatment
• Fuel industry
• Metal Manufacturing
• Cooling industry
• Power Plant
• Chemicals
Required data to prepare quotation
• Inlet pressure
• Inlet flow rate
• Inlet temperature
• Inlet water content
• Outlet required Pressure Dew Point (PDP)
• Inlet O2 rate
• Requested O2 outlet rate
• Availability of external dry gas for regeneration/cooling. If yes, the temperature and dew point of the gas.
• Availability of water for regeneration/cooling. If yes temperature of cooling water.
• Inlet flow rate
• Inlet temperature
• Inlet water content
• Outlet required Pressure Dew Point (PDP)
• Inlet O2 rate
• Requested O2 outlet rate
• Availability of external dry gas for regeneration/cooling. If yes, the temperature and dew point of the gas.
• Availability of water for regeneration/cooling. If yes temperature of cooling water.
How H2 dryers work?
Gallery
Inquiry
OMEGA AIR d.o.o. Ljubljana
Cesta Dolomitskega odreda 10
1000 Ljubljana
Slovenia
Cesta Dolomitskega odreda 10
1000 Ljubljana
Slovenia
- +386 (0)1 200 68 00
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