초록 ▼

Self-promoted molybdenum and tungsten sulfide hydrotreating catalysts are prepared by heating one or more water soluble catalyst precursors in a non-oxidizing atmosphere in the presence of sulfur at a temperature of at least about 200°C. The precursors will be one or more compounds of the formula ML

Self-promoted molybdenum and tungsten sulfide hydrotreating catalysts are prepared by heating one or more water soluble catalyst precursors in a non-oxidizing atmosphere in the presence of sulfur at a temperature of at least about 200°C. The precursors will be one or more compounds of the formula ML(MoyW1-yO4) wherein M is one or more promoter metals selected from the group consisting essentially of Mn, Fe, Co, Ni, Cu, Zn and mixtures thereof, wherein O≤y≤1 and wherein L is a nitrogen containing, neutral multidentate, chelating ligand. In a preferred embodiment the ligand L will comprise one or more chelating alkyl di or triamines and the non-oxidizing atmosphere will comprise H2S.

대표청구항 ▼

A process for preparing a supported, self-promoted catalyst, said process comprising: (i) compositing a porous, inorganic refractory oxide support with a water soluble catalyst precursor salt characterized by (ML) (MoyW1-yO4) wherein M comprises one or more divalent promoter metals selected from the

A process for preparing a supported, self-promoted catalyst, said process comprising: (i) compositing a porous, inorganic refractory oxide support with a water soluble catalyst precursor salt characterized by (ML) (MoyW1-yO4) wherein M comprises one or more divalent promoter metals selected from the group consisting of Mn, Fe, Co, Ni, Cu, Zn and mixtures thereof, wherein y is any value ranging from 0 to 1, and wherein L is one or more neutral, nitrogen-containing ligands at least one of which is a chelating polydentate ligand; and (ii) heating said composite formed in (i) in a non-oxidizing atmosphere in the presence of excess sulfur in the form of one or more sulfur bearing compounds and at a temperature of at least about 200°C. to form said self-promoted catalyst.