A PROCESS FOR THE PRODUCTION OF NITRIC ACID COMPRISING A CATALYTIC TREATMENT OF N2O FROM THE TAIL GAS AND A NITRIC ACID PRODUCTION UNIT

Abstract

PROCESS FOR THE PRODUCTION OF NITRIC ACID COMPRISING A CATALYTIC TREATMENT OF N2O FROM TAIL GASES AND A NITRIC ACID PRODUCTION UNIT. The invention relates to a process for the production of nitric acid comprising at least one step for treating a gaseous effluent containing N2O, said process comprising at least the following steps in this order: - a step in which ethanol is added to the gaseous effluent; - a step for treating the gaseous effluent which is a decomposition step of N2O on a catalytic bed containing at least one catalyst comprising an iron-exchanged ferrierite zeolite, at a temperature below 400°C. The invention also relates to a nitric acid production unit. Figure for the abstract: Fig. 2