초록 ▼

Hydrocarbon feeds are upgraded by contacting a feed, at elevated temperature and in the presence of hydrogen, with a self-promoted catalyst prepared by heating one or more catalyst precursors under oxygen-free conditions in the presence of sulfur at a temperature of at least about 150°C. The catalys

Hydrocarbon feeds are upgraded by contacting a feed, at elevated temperature and in the presence of hydrogen, with a self-promoted catalyst prepared by heating one or more catalyst precursors under oxygen-free conditions in the presence of sulfur at a temperature of at least about 150°C. The catalyst precursors will be one or more compounds of the formula (ML)(MoyW1-yS4) wherein M comprises one or more divalent promoter metals selected from the group consisting of Ni, Co, Zn, Cu 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.

대표청구항 ▼

A process for hydrorefining 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 heating one or more precursor salts at elevated temperature of at least about 150°C., in the presence of sulfur or

A process for hydrorefining 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 heating one or more precursor salts at elevated temperature of at least about 150°C., in the presence of sulfur or one or more 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 one or more divalent promoter metals which are chelated by at least one neutral, nitrogen-containing polydentate ligand, wherein said divalent promoter metal is selected from the group consisting of Ni, Co, Zn, Cu and mixture thereof, said contacting occurring for a time sufficient to hydrorefine at least a portion of said feed.