{HEAD ~ An improved method} is described for presulfiding and preconditioning 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 
{ HEAD ~ An improved method } is described for presulfiding and preconditioning 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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