[1]汪小蕾,朴桂林,谢浩,等.活性炭选择性催化还原NOx[J].东南大学学报(自然科学版),2011,41(1):145-149.[doi:10.3969/j.issn.1001-0505.2011.01.028]
 Wang Xiaolei,Piao Guilin,Xie Hao,et al.Selective catalytic reduction of NOx by activated carbon[J].Journal of Southeast University (Natural Science Edition),2011,41(1):145-149.[doi:10.3969/j.issn.1001-0505.2011.01.028]
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
41
期数:
2011年第1期
页码:
145-149
栏目:
环境科学与工程
出版日期:
2011-01-20

文章信息/Info

Title:
Selective catalytic reduction of NOx by activated carbon
作者:
汪小蕾1朴桂林12谢浩2赵晓媛1
(1东南大学能源与环境学院,南京 210096)
(2南京师范大学动力工程学院,南京 210096)
Author(s):
Wang Xiaolei1Piao Guilin12Xie Hao2Zhao Xiaoyuan1
(1School of Energy and Environment,Southeast University, Nanjing 210096, China)
(2School of Power Engineering, Nanjing Normal University, Nanjing 210096, China)
关键词:
活性炭SCRNOxSEM
Keywords:
activated carbon selective catalytic reduction NOx scanning electron microscope
分类号:
X701.3
DOI:
10.3969/j.issn.1001-0505.2011.01.028
摘要:
采用活性炭作催化剂,NH3为还原剂,进行活性炭脱硝机理的实验研究.分别考察了烟气组分、温度、活性炭的比表面积及不同材质对NOx去除率的影响.结果表明:活性炭作为单纯的吸附剂,其NO吸附容量较小, O2的加入使吸附容量增大,NH3与O2同时存在则可达到最佳去除效果,H2O的存在不利于活性炭的催化作用; 温度在200℃时,活性炭催化活性达到低谷; 煤质活性炭催化效果优于木质; 在一定范围内,比表面积的增大有利于催化活性的提高.利用SEM对所用不同样品进行扫描,进一步分析活性炭表面结构对吸附催化效果的影响.
Abstract:
Adopting activated carbon (AC) as catalyst and ammonia as reducer Nox reduction was studied. The effect of flue gas compositions, temperature, specific surface area and the material of AC on Nox conversion were investigated. The results show that the NO adsorption capacity of AC as an only adsorbent is small; the capacity increases if O2 is added; and the best removal efficiency can be achieved with the co-existing of NH3 and O2; the activity of activated carbon is poisoned with existence of H2O. An activity trough occurs around 200℃. Catalytic effect of activated carbon from coal is better than woody AC. The increasing of specific surface area improves the catalytic activity in a certain range. Surface structures of different activated carbon samples were also scanned by (SEM) for further analysis.

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备注/Memo

备注/Memo:
作者简介:汪小蕾(1988—),女,硕士生;朴桂林(联系人),男,博士,教授,博士生导师,piaoguilin@njnu.edu.cn.
基金项目:南京师范大学校级资助项目(2009112XGQ0130).
引文格式: 汪小蕾,朴桂林,谢浩,等.活性炭选择性催化还原NOx[J].东南大学学报:自然科学版,2011,41(1):145-149.[doi:10.3969/j.issn.1001-0505.2011.01.028]
更新日期/Last Update: 2011-01-20