An improved method is described for presulfiding and preconditioning {TAIL ~ a residuum hydrotreating or hydrocracking catalyst} as an integrated part of the hydroconversion process in which {HEAD ~ catalyst} is added on stream intermittently or continuously without interruption of the hydroconversion process 
An improved method is described for presulfiding and preconditioning { TAIL ~ a residuum hydrotreating or hydrocracking catalyst } as an integrated part of the hydroconversion process in which { HEAD ~ catalyst } is added on stream intermittently or continuously without interruption of the hydroconversion process
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH