The existing styrene production facility can include separation apparatus to remove {HEAD ~ at least a portion} of any benzene from {TAIL ~ the new product stream}, an alkylation reactor to form ethylbenzene by reacting the benzene with ethylene, and a dehydrogenation reactor to form styrene by dehydrogenating ethylbenzene 
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The existing styrene production facility can include separation apparatus to remove { HEAD ~ at least a portion } of any benzene from { TAIL ~ the new product stream } , an alkylation reactor to form ethylbenzene by reacting the benzene with ethylene , and a dehydrogenation reactor to form styrene by dehydrogenating ethylbenzene
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH