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Synergetic NO reduction by biomass pyrolysis products simulating their reburning in circulating fluidized bed decoupling combustion
Alternative TitleSynergetic NO reduction by biomass pyrolysis products simulating their reburning in circulating fluidized bed decoupling combustion
Do HaiSam1; Tran TuyetSuong1; Han Zhennan3; Zeng Xi1; Gao Shiqiu1; Xu Guangwen1
2019
Source PublicationCHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN1004-9541
Volume27Issue:7Pages:1680-1689
AbstractThe present work investigated the synergetic effect of pyrolysis-derived char, tar and gas (py-gas) on NO reduction, which may occur in circulating fluidized-bed decoupling combustion (CFBDC) system treating N-rich fuel. Experiments were carried out in a lab-scale drop-tube reactor for NO reduction by some binary mixtures of reagents including char/py-gas, tar/py-gas and tar/char. At a specified total mass rate of 0.15 g.min(-1) for NO-reduction reagent, the char/py-gas (binary reagent) enabled the best synergetic NO reduction in comparison with the others. There existed effective interactions between char and some species in py-gas (i.e., H-2, CxHy) during NO reduction by pyrolysis products, meanwhile the tar/py-gas or tar/char mixture only caused a positive effect when tar proportion was necessarily lowered to about 26%. On the other hand, the synergetic effects were not improved for all tested binary reagents by increasing the reaction temperature and residence time. (C) 2018 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.
Other AbstractThe present work investigated the synergetic effect of pyrolysis-derived char, tar and gas (py-gas) on NO reduction, which may occur in circulating fluidized-bed decoupling combustion (CFBDC) system treating N-rich fuel. Experiments were carried out in a lab-scale drop-tube reactor for NO reduction by some binary mixtures of reagents including char/py-gas, tar/py-gas and tar/char. At a specified total mass rate of 0.15 g·min~(-1) for NO-reduction reagent, the char/py-gas (binary reagent) enabled the best synergetic NO reduction in comparison with the others. There existed effective interactions between char and some species in py-gas (i.e., H_2, C_xH_y) during NO reduction by pyrolysis products, meanwhile the tar/py-gas or tar/ char mixture only caused a positive effect when tar proportion was necessarily lowered to about 26%. On the other hand, the synergetic effects were not improved for all tested binary reagents by increasing the reaction temperature and residence time.
KeywordNITRIC-OXIDE FUEL CHARACTERISTICS HIGH-TEMPERATURE TAR CARBON COAL MECHANISMS KINETICS CHAR WOOD Biomass Pyrolysis Circulating fluidized bed NO reduction Synergetic effect Decoupling combustion
Indexed ByCSCD
Language英语
Funding Project[National Basic Research Program of China] ; [National Natural Science Foundation of China]
CSCD IDCSCD:6603959
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/153674
Collection中国科学院金属研究所
Affiliation1.中国科学院
2.中国科学院大学
3.中国科学院金属研究所
Recommended Citation
GB/T 7714
Do HaiSam,Tran TuyetSuong,Han Zhennan,et al. Synergetic NO reduction by biomass pyrolysis products simulating their reburning in circulating fluidized bed decoupling combustion[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2019,27(7):1680-1689.
APA Do HaiSam,Tran TuyetSuong,Han Zhennan,Zeng Xi,Gao Shiqiu,&Xu Guangwen.(2019).Synergetic NO reduction by biomass pyrolysis products simulating their reburning in circulating fluidized bed decoupling combustion.CHINESE JOURNAL OF CHEMICAL ENGINEERING,27(7),1680-1689.
MLA Do HaiSam,et al."Synergetic NO reduction by biomass pyrolysis products simulating their reburning in circulating fluidized bed decoupling combustion".CHINESE JOURNAL OF CHEMICAL ENGINEERING 27.7(2019):1680-1689.
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