A Novel Model Parameter for the Assessment of the Dimerization of n-Butenes over Ni-Containing Aluminosilicate Catalysts

Previous investigations on the dimerization of n-butenes over Ni-containing Al-MCM-41/ZSM-5 mixed-phase catalysts have shown a correlation between conversion and Ni/(Al + Ni) ratio as well metal–support interaction, which is represented by reduction degree. In present work, both approaches are combined to novel model parameter, allows determine proportion active Ni species Al-Ni site pairs thus provides crucial insights into formation catalytically nickel sites their effects selective low-branched dimers.