Hydrogen is the lightest of all gases. More than two-thirds of the global hydrogen production is used in the chemical industry mainly for the synthesis of ammonia and methanol. In addition, the chemical industry exploits many hydrogenation processes that are partially known under names such as hydrogenation and hydrogenation. More recently, hydrogen is also used as an alternative energy vector.

Messer offers a whole range of technologies for the production of hydrogen and Syngas, with the choice of the optimum process depending on several factors. These include the application, volume requirement and purity. The experts from Messer will be happy to advise you on this.


Electrolysis, steam reformer or PSA – a question of the starting point

For smaller hydrogen consumers or customers who do not have an alternative source material on site, Messer offers electrolysis units for hydrogen production with a capacity of 0.5 to 100 Nm3/h. These units, individually designed by Messer, are modular in design, offering maximum flexibility when it comes to planning or expansion. Hydrogen purities of 99.9% and above can be achieved, thereby satisfying even the high purity standards of the food, electronics and chemical industries.


Steam reformers use natural gas as a feedstock and can be used for both small and large hydrogen units. With the so-called steam reforming process, the feedstock is mixed with process steam, heated to approximately 480°C and then split in the reformer using a nickel based catalyst. In the CO Shift Reactor, in which carbon monoxide (CO) reacts with H2O to form H2 and CO2 (catalytic conversion), the hydrogen content in the reformed gas increases further.

After this, the hydrogen-rich gas is cooled in several stages and condensate is separated. Finally, the hydrogen is purified in a multi-bed PSA unit. It leaves the PSA unit under 15 to 30 bar of pressure and with a purity of up to 99.9995%.

For companies that already have a hydrogen supply but require higher purities for downstream use, Messer can supply hydrogen PSA units as separate units. They receive the hydrogen-rich gas flow and convert it into high purity hydrogen (>99.999%).

The hydrogen PSA unit can be integrated into the customer’s existing setup and operates fully automatically, with the number of adsorption beds (tanks) depending on the H2 throughput.

The hydrogen product is available with constant flow, pressure and temperature values.