This process involves the oxidation and dehydration of ethylene (C2H4) to form ethanol (C2H6O), followed by oxidation of ethanol to form acetaldehyde (C2H4O2), then the polymerization of acetaldehyde to form acetaldehyde dimer, which is acetaldehyde with itself, to form butene (CH3-CH=CH2), and finally the dimerization of butene to form benzene (C6H6).