Increasing vi of lube oil by hydrotreating

Details Increasing vi of lube oil by hydrotreating Increasing vi of lube oil by hydrotreating

C - Chemistry, Metallurgy

10

G

C10G 45/60 (2006.01) B01J 27/051 (2006.01)

Patent

CA 2109227

Lube oils of increased VI are prepared by hydrotreating using bulk Ni/Mn/No or Cr/Ni/Mo sulfide catalysts prepared from ligated, e.g., ethylene diamine, metal complexes. In particular the Ni/Mn/Mo sulfide catalyst is prepared from the oxide precursor with subsequent sulfiding while the Cr/Ni/Mo sulfide catalyst is prepared from the sulfide precursor in the presence of H2S/H2.

Des huiles de lubrification à indice de viscosité amélioré sont préparées par hydrotraitement en utilisant en vrac des catalyseurs au sulfure Ni/Mn/No ou Cr/Ni/Mo préparés à partir de complexes métalliques, par exemple de diamine d'éthylène. En particulier, le catalyseur au sulfure Ni/Mn/Mo est préparé à partir du précurseur d'oxyde avec sulfurisation subséquente alors que le catalyseur au sulfure Cr/Ni/Mo est préparé à partir du précurseur de sulfure en présence d'H2S/H2.

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