Step pyrolysis of N-rich industrial biowastes: Regulatory mechanism of NOx precursor formation via exploring decisive reaction pathways

doi:10.1016/j.cej.2018.03.099

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	Step pyrolysis of N-rich industrial biowastes: Regulatory mechanism of NOx precursor formation via exploring decisive reaction pathways
	Zhuang, Xiuzheng 3,4; Zhan, Hao 3,4; Yin, Xiuli 4; Cao, Junji 1; Shen, Zhenxing 2; Wu, Chuangzhi 4; Song, Yanpei 3,4
刊名	CHEMICAL ENGINEERING JOURNAL
	2018-07-15
卷号	344 期号:7 页码:320-331
关键词	Step Pyrolysis Nox Precursors Reaction Pathways Amide-n N-pollution Emission Control
DOI	10.1016/j.cej.2018.03.099
文献子类	Article
英文摘要	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.
WOS关键词	SEWAGE-SLUDGE PYROLYSIS ; HIGH-NITROGEN CONTENT ; BIOMASS WASTES ; TG-FTIR ; AMINO-ACIDS ; CONVERSION ; COMBUSTION ; NH3 ; HCN ; EVOLUTION
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:000430695300032
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5158]
专题	地球环境研究所_粉尘与环境研究室
作者单位	1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710045, Shaanxi, Peoples R China 2.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Shaanxi, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.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
推荐引用方式 GB/T 7714	Zhuang, Xiuzheng,Zhan, Hao,Yin, Xiuli,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	Zhuang, Xiuzheng.,Zhan, Hao.,Yin, Xiuli.,Cao, Junji.,Shen, Zhenxing.,...&Song, Yanpei.(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	Zhuang, Xiuzheng,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.