초록 ▼

An improved method is described for presulfiding and preconditioning a residuum hydrotreating or hydrocracking catalyst as an integrated part of the hydroconversion process in which catalyst is added on-stream intermittently or continuously without interruption of the hydroconversion process. The me

An improved method is described for presulfiding and preconditioning a residuum hydrotreating or hydrocracking catalyst as an integrated part of the hydroconversion process in which catalyst is added on-stream intermittently or continuously without interruption of the hydroconversion process. The method is used to condition, activate, or presulfide fresh or regenerated catalyst prior to its addition to the hydroconversion reactor utilizing product streams from the hydroconversion process.

대표청구항 ▼

[ I claim:] [1.]1. 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 o

[ I claim:] [1.]1. 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; rein the above steps are performed without interrupting the continuous operation of the resid hydroconversion process.