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Step pyrolysis of N-rich industrial biowastes: Regulatory mechanism of NOx precursor formation via exploring decisive reaction pathways
Zhan, Hao1,2; Zhuang, Xiuzheng1,2; Song, Yanpei1,2; Yin, Xiuli1; Cao, Junji3; Shen, Zhenxing4; Wu, Chuangzhi1
2018-07-15
发表期刊CHEMICAL ENGINEERING JOURNAL
卷号344期号:7页码:320-331
文章类型Article
摘要Step pyrolysis of N-rich industrial biowastes was used to explore decisive reaction pathways and regulatory mechanisms of NOx precursor formation. Three typical ones involving medium-density fiberboard waste (MFW), penicillin mycelia waste (PMW) and sewage sludge (SS) were employed to compare the formation characteristics of NOx precursors during one-step and two-step pyrolysis. Results demonstrated that considerable NH3-N pre-dominated NOx precursors for one-step pyrolysis at low temperatures, depending on primary pyrolysis of labile amide-N/inorganic-N in fuels. Meanwhile, NOx precursors differed in the increment of each species yield while resembled in the total yield of 20-45 wt.% among three samples at high temperatures, due to specific prevailing reaction pathways linking with distinctive amide-N types. Subsequently, compared with one-step pyrolysis uniformly (800 degrees C), by manipulating intensities of reaction pathways at different stages (selecting differential intermediate feedstocks), two-step pyrolysis was capable of minimizing NOx precursor-N yield by 36-43% with a greater impact on HCN-N (75-85%) than NH3-N (9-37%), demonstrating its great capacity on regulating the formation of NOx precursors for industrial biowaste pyrolysis. These observations were beneficial to develop effective insights into N-pollution emission control during their thermal reutilization.
关键词Step Pyrolysis Nox Precursors Reaction Pathways Amide-n N-pollution Emission Control
WOS标题词Science & Technology ; Technology
DOI10.1016/j.cej.2018.03.099
关键词[WOS]SEWAGE-SLUDGE PYROLYSIS ; HIGH-NITROGEN CONTENT ; BIOMASS WASTES ; TG-FTIR ; AMINO-ACIDS ; CONVERSION ; COMBUSTION ; NH3 ; HCN ; EVOLUTION
收录类别SCI
语种英语
WOS研究方向Engineering
WOS类目Engineering, Environmental ; Engineering, Chemical
WOS记录号WOS:000430695300032
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5158
专题粉尘与环境研究室
作者单位1.Chinese Acad Sci, Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710045, Shaanxi, Peoples R China
4.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Shaanxi, Peoples R China
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Zhan, Hao,Zhuang, Xiuzheng,Song, Yanpei,et al. Step pyrolysis of N-rich industrial biowastes: Regulatory mechanism of NOx precursor formation via exploring decisive reaction pathways[J]. CHEMICAL ENGINEERING JOURNAL,2018,344(7):320-331.
APA Zhan, Hao.,Zhuang, Xiuzheng.,Song, Yanpei.,Yin, Xiuli.,Cao, Junji.,...&Wu, Chuangzhi.(2018).Step pyrolysis of N-rich industrial biowastes: Regulatory mechanism of NOx precursor formation via exploring decisive reaction pathways.CHEMICAL ENGINEERING JOURNAL,344(7),320-331.
MLA Zhan, Hao,et al."Step pyrolysis of N-rich industrial biowastes: Regulatory mechanism of NOx precursor formation via exploring decisive reaction pathways".CHEMICAL ENGINEERING JOURNAL 344.7(2018):320-331.
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