Effect of surface carbon-oxygen complexes during NO reduction by coal char | |
Yan, Wenxia1,2; Li, Songgeng1,2; Fan, Chuigang1,2; Deng, Shuang3 | |
刊名 | FUEL |
2017-09-15 | |
卷号 | 204页码:40-46 |
关键词 | Coal Char No Reduction Carbon-oxygen Complexes |
ISSN号 | 0016-2361 |
DOI | 10.1016/j.fuel.2017.05.045 |
文献子类 | Article |
英文摘要 | Eleven coal chars are studied in a laboratory scale fixed bed reactor using a simulated flue gas for NO reduction. XPS are applied to evaluate the distributions of different surface carbon-oxygen complexes on char surface and distinguish their roles in the reaction of NO with carbon in the presence of oxygen. BET and TEM have been employed to characterize the textural and structural properties of these coal chars. It is found that thermally relatively stable C-O species play a more important role compared with (RC)-C-2 = O and O-C = O. Enrichment of surface C-O species on char surface can enhance NO reduction and simultaneously control CO formation. Activated carbon and H2O2-modified activated carbon are also investigated to verify this point. Two different reaction mechanisms, i.e., surface carbon-oxygen complexes involved reactions and directly burn-off unoccupied surface, are put forward to explain different performance exhibited by the samples examined in this work. (C) 2017 Elsevier Ltd. All rights reserved. |
WOS关键词 | Fluidized-bed Combustion ; Density-functional Theory ; Nitric-oxide Reduction ; Activated Carbons ; Flue-gas ; Chemistry ; Kinetics ; Gasification ; Temperature ; Mechanisms |
WOS研究方向 | Energy & Fuels ; Engineering |
语种 | 英语 |
WOS记录号 | WOS:000403993400005 |
资助机构 | National Key Basic Research Program of Ministry Science and Technology of China(2014CB744304) ; Chinese Academy of Sciences (CAS)/State Administration of Foreign Expert Affairs (SAFEA) International Partnership Program for Creative Research Teams |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/22724] |
专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China |
推荐引用方式 GB/T 7714 | Yan, Wenxia,Li, Songgeng,Fan, Chuigang,et al. Effect of surface carbon-oxygen complexes during NO reduction by coal char[J]. FUEL,2017,204:40-46. |
APA | Yan, Wenxia,Li, Songgeng,Fan, Chuigang,&Deng, Shuang.(2017).Effect of surface carbon-oxygen complexes during NO reduction by coal char.FUEL,204,40-46. |
MLA | Yan, Wenxia,et al."Effect of surface carbon-oxygen complexes during NO reduction by coal char".FUEL 204(2017):40-46. |
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