The benzene via line 14 along with ethylene via line 16 are supplied to {HEAD ~ an alkylation reactive zone} 120 which produces ethylbenzene and {TAIL ~ other products} which are sent via line 18 to a separation zone 140 
produces
The benzene via line 14 along with ethylene via line 16 are supplied to { HEAD ~ an alkylation reactive zone } 120 which produces ethylbenzene and { TAIL ~ other products } which are sent via line 18 to a separation zone 140
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH