Research on Catalytic Reduction Treatment Process of Tail Gas in Double Pressure Nitric Acid Production Process
In order to further explore the tail gas treatment process in the production of dual pressure nitric acid,combined with the actual situation of a chemical plant where wet absorption treatment is difficult to effectively treat tail gas,the tail gas catalytic conversion process mode is adopted for process optimization,and the overall process flow is designed.Through single factor experiments,the reaction temperature was determined to be 380℃,and the stoichiometric ratio of ammonia to nitrogen oxides was set to 1.2 to optimize the process parameters.The actual operation results show that after adopting the tail gas catalytic conversion process mode,the emission of nitrogen oxides is effectively reduced,which meets the requirements of relevant standards.
dual pressurenitric acid productionexhaust gas treatmentcatalytic reduction
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