(i)FCC Unit

(j)C3 Separator

(k) C2 Separator Unit

(m) Gas treating Unit

(n) Naphtha Splitter

(o) Catalytic Reformer

(p) n-Butane Splitter

(q) Isomerization Unit

(r)Alkylation Unit

(s) LVGO Splitter

(t) LPG Pool Unit

(u) Gasoline Pool

(v) Gasoil Pool

(w) Fuel Oil Pool

Figure 4.1: Summary of prominent sub-process units in a typical petroleum refinery complex.