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