Process of removing nitrogen oxides from flue gases from a fluidized catalytic cracking unit

摘要

A process for removing nitrogen oxides from flue gases of a fluidized catalytic cracking unit wherein the flue gas is introduced into a tertiary cyclone with percentages of separated solids being discharged in both the overflow and underflow from the cyclone, treating the overflow in a catalytic reduction unit to form an outlet gas and treating the underflow and outlet gas in a wet scrubber.