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