{HEAD ~ The method} is used to condition, activate, or presulfide {TAIL ~ fresh or regenerated catalyst} prior to its addition to the hydroconversion reactor utilizing product streams from the hydroconversion process 
{ HEAD ~ The method } is used to condition , activate , or presulfide { TAIL ~ fresh or regenerated catalyst } prior to its addition to the hydroconversion reactor utilizing product streams from the hydroconversion process
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH