Catalysts
HDMax® 301 hydrogenation catalyst
HDMax® 301 is a hydrogenation catalyst with nickel and molybdenum as the catalytically active chemistry. Its tailored composition is suitable for selected feed streams and
Hydrodesulfurization (HDS) is a key step in hydrogen production and synthesis gas purification, as it protects sensitive downstream catalysts from sulfur poisoning. In hydrogen production processes, desulfurization is essential to ensure long catalyst lifetime and stable plant operation.
In the first desulfurization step, organic sulfur compounds are converted into sulfur-free hydrocarbons using a Co–Mo-based hydrodesulfurization catalyst such as HDMax 200 in the presence of hydrogen (H₂). During this reaction, sulfur is released in the form of hydrogen sulfide (H₂S). In the second step, the H₂S is removed by chemisorption on a zinc oxide adsorber, for example ActiSorb S2, according to the reaction:
ZnO + H₂S → ZnS + H₂O
Hydrodesulfurization is also widely applied in synthesis gas purification, particularly for the removal of carbonyl sulfide (COS). In this case, COS is converted in the presence of H₂ to carbon dioxide (CO₂) and H₂S, preventing poisoning of iron-based water–gas shift catalysts such as ShiftMax 120 HCF. The generated H₂S is subsequently captured by the downstream ZnO adsorber, ensuring reliable sulfur removal and stable WGS operation.
HDMax® 301 is a hydrogenation catalyst with nickel and molybdenum as the catalytically active chemistry. Its tailored composition is suitable for selected feed streams and
HDMax 300 is a nickel-molybdenum catalyst used for the saturation of olefins to alkanes in natural gas feed streams, for hydrodesulfurization, and for hydrodenitrogenation. It
Desulfurization: HDMax® 201 is a cobalt-molybdenum catalyst and, like HDMax® 200, is used in the hydrodesulfurization of natural gas (organic sulfur compounds – from, for
The HDMax® 200 hydrodesulfurization catalyst is a cobalt-molybdenum catalyst. In the presence of hydrogen, HDMax® 200 catalyzes the complete removal of sulfur from organic sulfur
ActiSorb® G1 is a bifunctional copper-molybdenum catalyst with ZnO as a support, used for combined hydrodesulfurization and H₂S removal in natural gas with low sulfur
The HDMax® 200 TRX hydrodesulfurization catalyst is a cobalt-molybdenum catalyst. In the presence of hydrogen, HDMax® 200 TRX catalyzes the complete removal of sulfur from
