H2 removal

H₂ removal refers to the catalytic elimination of hydrogen from gas streams. During electrolysis, water is split into oxygen (O₂) and hydrogen (H₂). The subsequent separation and purification of these gases requires suitable catalysts and is commonly described as hydrogen removal (DeH₂).

Depending on the electrolysis technology applied, different gas compositions are generated. These streams must be purified to remove residual impurities in order to obtain high-purity hydrogen or high-purity oxygen.

In addition, H₂ removal from inert gases such as argon (Ar), helium (He), or nitrogen (N₂) is an important application. This is particularly relevant in the semiconductor and electronics industries, in the processing of technical gases such as CO₂, N₂, and Ar, as well as in petrochemical processes, metallurgy, and heat treatment operations.

Such purification processes are typically carried out using precious metal catalysts based on platinum or palladium, or mixed oxide catalysts containing copper and manganese. The standard solution offered by C&CS for these applications is the palladium-containing ActiSorb O3 catalyst. ActiSorb O3 enables efficient and reliable H₂ removal to concentrations below a few ppmv. Our experts support you in defining optimal process conditions, including temperature, pressure, and space velocity, to ensure stable and efficient operation