In particular, embodiments of the invention generally relate to modification of zeolite catalysts for {HEAD ~ use} in {TAIL ~ alkylation systems} 
In particular , embodiments of the invention generally relate to modification of zeolite catalysts for { HEAD ~ use } in { TAIL ~ alkylation systems }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL