The method 1 where the catalyst is presulfided such that {TAIL ~ 2 to 10 weight percent sulfur} is deposited on {HEAD ~ the catalyst} 
The method 1 where the catalyst is presulfided such that { TAIL ~ 2 to 10 weight percent sulfur } is deposited on { HEAD ~ the catalyst }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD