NO emission from burning distilled spirit lees with high contents of moisture and nitrogen in fluidized bed

被引:0
|
作者
Liu, Huan [1 ,2 ]
Cui, Lijie [2 ]
Zhu, Chuanqiang [1 ]
Zeng, Xi [1 ]
Gao, Shiqiu [1 ]
Xu, Guangwen [1 ]
机构
[1] State Key Laboratory of Multi-Phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing,100190, China
[2] School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing,100049, China
来源
Huagong Xuebao/CIESC Journal | 2015年 / 66卷 / 07期
关键词
Catalyst activity - Nitrogen - Fluidized beds - Metals - Reduction - Water vapor - Moisture - Fluidized bed combustion - Oxygen;
D O I
10.11949/j.issn.0438-1157.20150182
中图分类号
学科分类号
摘要
This study was devoted to investigating the NO emission from combusting distilled spirit lees with high contents of moisture and nitrogen in a laboratory fluidized bed. The results showed that the NO emission increased with increasing excess air ratio and combustion temperature. The addition of extra water vapor into the combustion atmosphere for simulating the combustion of high-moisture fuel effectively decreased the NO emission, and about 46% (mass) of NO emission was reduced under appropriate conditions. In the N2-base atmosphere containing CO or H2, the metallic oxides containing in the ash of distilled spirit lees showed obvious catalytic activity on the reduction of NO, and the catalytic activity increased with increasing temperature. Water vapor in itself had not detective effect on reduction of NO, showing that its reduction of NO into N2 would be implemented through its reactions with hydrocarbons to generate reductive gases such as H2 and CO under the catalytic effect of ash. ©, 2015, Chemical Industry Press. All right reserved.
引用
收藏
页码:2694 / 2701
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