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