湖南大学学报（自然科学版）2013，Vol.40Issue(1)：38-42,5.
尿素SCR系统低温表现特性研究
Study of the Low Temperature Performance of Urea-SCR
摘要
Abstract
A model of urea-SCR system was built to simulate low temperature performances. The results reveal that, in the range of 150～250℃,gas hourly space velocity(GHSV) has more impact on DeNOχ than at a higher temperature; when GHSV is smaller than a value, DeNOχ can hardly change; and below 200℃,the NH3 should be less than NOχ, or it will lead to waste and pollutioa The impact of the oxygen on DeNOχ depends on the NO content, and this trend becomes weaker when the temperature increases. When the oxygen content reaches 5%, the DeNOχ in different temperatures has stable values.关键词
尿素/后处理系统/氮氧化物/选择性催化还原Key words
urea /ftertreatment/ NOχ/ selective catalytic reduction (SCR)分类
能源科技引用本文复制引用
龚金科,鲍军,谭理刚,张文强,刘志强..尿素SCR系统低温表现特性研究[J].湖南大学学报（自然科学版）,2013,40(1):38-42,5.基金项目
国家自然科学基金资助项目(50876027) （50876027）
湖南省自然科学基金资助项目(10JJ6080) （10JJ6080）
湖南大学汽车车身先进设计制造国家重点实验室自主课题资助项目(61075002) （61075002）
