Hydrogen Plants
With the HM process, high purity hydrogen is produced by reforming combined with a PSA purification step.
A mixture of Ancillaries and demineralised water is vaporised in heat exchangers by hot syngas leaving the reformer and inert gas heated by a high velocity burner. Whilst passing the catalyst, the Ancillaries/water vapour mixture is converted into a syngas consisting of H2, CO, CO2, CH4 and water vapour. In the cooler, the syngas is cooled to ambient temperatures, whilst simultaneously water vapour is condensed and recycled to the storage tank. The syngas now passes the molecular sieve PSA purification unit where the H2 is isolated to the specified purity. The tail gas from the PSA purification unit is sent to the buffer tank. From the buffer tank, the tail gas is used as fuel for the high velocity burner.
Using inert gas instead of thermal oil as heat transfer fluid for heating the reformer makes an hot oil system obsolete and avoids all costs and problems of handling hot oil.
Capacity range:
150 - 4500 Nm³/h
H2 purity: typically 99,99% by vol.
(optional 99.9999% by vol.)
H2 supply pressure: typically 15 bar g
Operation: automatic, Completely PLC controlled
Economy: For the production of 500 Nm³/h H2 from Ancillaries the following utilities are required:
· 325kg/h Stock feed
· 325 kg/h demineralised water
· 26 kW electric power
· 6.5 m³/h cooling water (Can be designed for Air cooling)
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