Accordingly, {HEAD ~ the molar ratio} of {TAIL ~ ethylene} to feed material may range from greater than about 0.8/1 to typically less than about 20/1 
of
Accordingly , { HEAD ~ the molar ratio } of { TAIL ~ ethylene } to feed material may range from greater than about 0.8/1 to typically less than about 20/1
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH