氨法选择性催化还原工艺在硝酸尾气治理中的应用  

Treatment of nitric acid tail gas by SCR-NH_3 method

作　　者：张元春 高圣涛[1] 

机构地区：[1]安徽理工大学化学工程学院,安徽淮南232001 [2]安徽淮化集团有限公司,安徽淮南232038

出　　处：《现代化工》2018年第1期177-179,共3页Modern Chemical Industry

摘　　要：利用已有化工装置废氨水作为还原剂,选用N-847型催化剂,采用选择性催化还原(SCR)技术对硝酸尾气进行脱硝综合治理。通过对硝酸装置进行改造有效地减少了NO_x的排放,转化率高达90%以上,达到了环保、节能减排的效果。This paper focuses on the application of selective catalytic reduction（ SCR） technology and the technical innovation of nitric acid fabrication facility.By using the waste ammonia solution in existing chemical facility as reduction agent and adopting N-847 as catalyst,the nitric acid tail gas is comprehensively treated by SCR technology. Through the renovation on the nitric acid production facility of Anhui Huainan Chemical Group,the NOx emissions decrease effectively by 90% above,which conforms to the standards of national environmental protection and achieves the targets of energy conservation and emissions reduction.

关 键 词：硝酸尾气 氨法选择性催化还原 环保 节能减排 

分 类 号：X701.7[环境科学与工程—环境工程]