Schematic of a steam Cracker for Ethylene Production from Naphtha 125 bar stear Crack gas Steam I b Crack gas cooler convection one Naphtha preheater burner Naphtha zin heating gas Radiation zoneSchematic of a Steam Cracker for Ethylene Production from Naphtha heating gas Crack gas cooler Crack gas 125 bar steam Steam Naphtha preheater Naphtha burner Radiation zone convection zone F e e d w ater