Patent ID: 6291391
Filing Date: 2001-09-18
Classification: B01J,C10G

Abstract:
A method to improve the activity and activity maintenance of a hydrotreating and or hydrocracking catalyst utilized in a resid hydroconversion process comprising:(a) exposing a metal oxide catalyst to H.sub.2 S and H2 rich streams in an off-line vessel prior to adding said metal oxide catalst to the on-line hydroconversion reactor, said H.sub.2 S and H2 rich streams supplied from sources available within the hydroconversion process to at least partially convert the said metal oxide catalyst to a metal sulfide; and(b) conditioning said catalyst by passing it through a liquid hydrocarbon stream, said liquid hydrocarbon stream supIlied from sources available within the hydroconversion process;wherein the above steps are performed without interrupting the continuous operation of the resid hydroconversion process.