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.
关键词
双加压/硝酸生产/尾气处理/催化还原
Key words
dual pressure/nitric acid production/exhaust gas treatment/catalytic reduction
维普
万方数据