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# caustic soda washing
# Heat exchanger between salah and naphtha
# Heat exchanger between naphtha and salah
# naphtha furnace
# Naphtha and kerosene treatment unit
# naphtha stabilization unit
# What is caustic soda?
# The caustic is on top of the sakhawi
# caustic to Siuti
# regenerated cocoa soda
# naphtha oven
# Light virgin naphtha
# Heavy direct distillation naphtha
# Light direct distillation naphtha
# pure naphtha
# Naphtha with a special boiling point
# virgin naphtha
# polluted naphtha
# caustic soda concentration
# caustic soda solution
