Residues (petroleum), deethanizer tower

Residues (petroleum), deethanizer tower is a complex residuum from the distillation of a gas stream containing hydrogen, carbon monoxide, carbon dioxide and hydrocarbons having carbon numbers in the range of C1 through C6 or from the cracking of ethane and propane. It consists of hydrocarbons having carbon numbers in the range of C2 through C6. It may contain small amounts of benzene.