Low-NOx coal combustion via combining decoupling combustion and gas reburning
文献类型：期刊论文
| 作者 | Cai, Lianguo1,2; Shang, Xiao1; Gao, Shiqiu1; Wang, Yin1; Dong, Li1; Xu, Guangwen1 |
| 刊名 | FUEL
 |
| 出版日期 | 2013-10-01 |
| 卷号 | 112期号:0页码:695-703 |
| 关键词 | Decoupling combustion Low-NOx combustion Reburning Coal Industrial boiler |
| 英文摘要 | Through separating coal pyrolysis and char combustion and letting the pyrolysis gas burn in its passing through the combusting char bed, the so-called decoupling combustion has been proven to be effective for lowering NOx emission of coal and biomass combustion. The original design of the decoupling combustion was based on coal pyrolysis incurring with the heat transferring from the char combustion zone, thus causing the difficulty of scale-up in matching the reactions of slow coal pyrolysis and quick char combustion. An idea of using partial gasification to replace such a pyrolysis was proposed to allow the combination of reburning part of the gasification gas over the combusting char layer and the decoupling combustion of the left gasification gas by letting it pass through the char bed. This article compared first the effectiveness of reducing NOx emission by a few different combustion methods including reburning of gasification gas and the decoupling combustion based on coal pyrolysis in a laboratory scale dual-stage reactor for five different kinds of coal. It was shown that both the decoupling combustion and reburning of gasification gas represented the most effective low-NOx combustion methods, which can reduce the NOx emission by 30-40% in comparison with the traditional combustion without air-staging and reburning. The fuel ratio of fixed carbon to volatile matters of the coal also affected the effectiveness of NOx reduction, the lower the fuel ratio, the higher the NOx reduction effect was. The actual running test of a 1.4 MW industrial boiler based on combining the decoupling combustion and reburning part of the partial gasification gas reduced the NOx emission by 33% in comparison with the traditional industrial boiler. The result showed a successful scale-up of the technology and verified the idea of reducing NOx emission by combining the decoupling combustion and the reburning of coal gasification gas. (C) 2011 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Energy & Fuels ; Engineering, Chemical |
| 研究领域[WOS] | Energy & Fuels ; Engineering |
| 关键词[WOS] | BIOMASS CHAR ; REDUCTION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000321735400096 |
| 公开日期 | 2015-05-27 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/13638]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Lianguo,Shang, Xiao,Gao, Shiqiu,et al. Low-NOx coal combustion via combining decoupling combustion and gas reburning[J]. FUEL,2013,112(0):695-703. |
| APA | Cai, Lianguo,Shang, Xiao,Gao, Shiqiu,Wang, Yin,Dong, Li,&Xu, Guangwen.(2013).Low-NOx coal combustion via combining decoupling combustion and gas reburning.FUEL,112(0),695-703. |
| MLA | Cai, Lianguo,et al."Low-NOx coal combustion via combining decoupling combustion and gas reburning".FUEL 112.0(2013):695-703. |
入库方式： OAI收割
来源：过程工程研究所
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