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