摘要
SCR法脱硝技术是去除柴油机尾气中的NO_(X)最有效的方法。本文简要综述了SCR技术的原理、影响脱硝率的因素,以H_(2)-SCR和NH_(3)-SCR为例对比分析了不同温度和还原剂下NO_(X)的转化率的不同,归纳得出在不同还原剂条件下反应温度改变时脱硝率也有较大差异的现象,最后总结SCR反应器催化剂入口结构的改进优化对SCR系统的影响,并对未来SCR技术发展做出展望。
SCR denitrification technology is the most effective method to remove NO_(X)from diesel exhaust.In this paper,the principle of SCR technology and the factors affecting the denitration efficiency are briefly reviewed.Taking H_(2)-SCR and NH_(3)-SCR as examples,the difference of NO_(X)conversion rate under different temperatures and reducing agents is compared and analyzed.It is concluded that the denitration efficiency for different reducing agents is also quite different when the reaction temperature changes.Finally,the influence of the improvement and optimization of the catalyst inlet structure of the SCR reactor on the SCR system is summarized,and the prospect of the future development of SCR technology is expressed.
作者
孙啸宇
谈雨晨
王向丽
倪培永
Sun Xiaoyu;Tan Yuchen;Wang Xiangli;Ni Peiyong(School of Electrical Engineering,Nantong University,Nantong 226019;School of Mechanical Engineering,Nantong University,Nantong 226019,China)
出处
《广东化工》
CAS
2022年第16期69-70,73,共3页
Guangdong Chemical Industry
基金
江苏省大学生创新创业训练计划项目(项目编号:202110304088Y)。
关键词
SCR
脱硝
温度
催化剂
反应器结构
SCR
denitrification
temperature
catalyst
reactor structure
