초록 ▼

This invention relates to the preparation and use of catalysts useful for hydroprocessing processes, such as hydrotreating, wherein said catalysts are formed by heating, at elevated temperature, in the presence of sulfur and under oxygen-free conditions, a composite of support material and one or mo

This invention relates to the preparation and use of catalysts useful for hydroprocessing processes, such as hydrotreating, wherein said catalysts are formed by heating, at elevated temperature, in the presence of sulfur and under oxygen-free conditions, a composite of support material and one or more catalyst precursor salts containing a thiometallate anion of Mo, W or mixture thereof and a cation comprising one or more divalent promoter metals at least one of which is iron, wherein said promoter metal or metals are chelated by at least one neutral, nitrogen-containing polydentate ligand, and wherein said additional divalent promoter metal, if any, is selected from the group consisting of Ni, Co, Mn, Zn, Cu and mixture thereof.

대표청구항 ▼

A process for hydrotreating a hydrocarbon feed which comprises contacting said feed at a temperature of at least about 150°C. and in the presence of hydrogen with a catalyst obtained by compositing a quantity of inorganic refractory oxide support material with one or more precursor salts and heating

A process for hydrotreating a hydrocarbon feed which comprises contacting said feed at a temperature of at least about 150°C. and in the presence of hydrogen with a catalyst obtained by compositing a quantity of inorganic refractory oxide support material with one or more precursor salts and heating said composite at elevated temperature of at least about 150°C., in the presence of sulfur or sulfur bearing compounds and under oxygen-free conditions for a time sufficient to form said catalyst, wherein said precursor salt contains a tetrathiometallate anion of Mo, W or mixture thereof and a cation comprising at least one promoter metal selected from the group consisting of (a) divalent iron and (b) mixtures of divalent iron with one or more metals selected from the group consisting of divalent Ni, Co, Mn, Cu, and Zn wherein said divalent promoter metal or metals are chelated by at least one neutral, nitrogen-containing polydentate ligand, L, said contacting occurring for a time sufficient to hydrotreat at least a portion of said feed.