The plant includes the electrical rectifier, the bipolar electrolyser, the hydrogen and oxygen purification units and the drying and compression systems.
The electrical rectifier, providing direct current to the electrolysers, can operate in a range between 20 and 100% of the rated capacity with very high efficiency.
Hydrogen and oxygen leaving the electrolyser are stored in separate gasholders, which provide a constant feed to the purification and compression systems.
Purification is performed by a catalytic system from which hydrogen with a purity of up to 99,000% can be obtained.
Oil free piston or membrane compressor ensure high purity gases.
Drying up to – 60°C dew point is automatically controlled.
Trouble free operation of the plant is guaranteed through a complete instrumentation and well proved safety measures.
PLANT OPERATING DATA
Requirements given here are for a general case. More specific and detailed figures can be supplied to meet the demand of particular plant conditions or locations, or for integration with existing facilities.
For the production of 1 Nm3 pure hydrogen :
Electric power 5,8 kWh
Process water 0,85 l
Caustic potash (100% basis) 0,1 g
Cooling water 0,35 m³
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