Insights into the evolution of fuel-N to NO & IT;(x)& IT; precursors during pyrolysis of N-rich nonlignocellulosic biomass

doi:10.1016/j.apenergy.2018.03.015

GIEC OpenIR

	Insights into the evolution of fuel-N to NO & IT;(x)& IT; precursors during pyrolysis of N-rich nonlignocellulosic biomass
	Zhan, Hao 1,2; Zhuang, Xiuzheng 1,2; Song, Yanpei 1,2; Yin, Xiuli1 ; Wu, Chuangzhi1
	2018-06-01
发表期刊	APPLIED ENERGY
ISSN	0306-2619
卷号	219 页码:20-33
通讯作者	Wu, Chuangzhi(wucz@gzb.ac.cn)
摘要	Pyrolysis of N-rich nonlignocellulosic biomass is a promising way to their energy utilization, in which the evolution of fuel-N may result in serious emission of N-containing pollution due to abundant nitrogen content in them. Understanding of specific evolution pathways of fuel-N to NOx precursors is significant. Based on two typical species with highest nitrogen content from different nitrogen origins - cultivated chlorella microalgae (CMA) and penicillin mycelia waste (PMW), characteristics of NOx precursors and relevant nitrogen function-elides in chars/tars with the temperature were fully analyzed and compared. Subsequently, evolution mechanisms of fuel-N to NOx precursors and their possible reaction pathways were in detail elucidated. Results revealed that overwhelming similarities on the evolution mechanisms were observed for two species based on their main similar nitrogen functionalities-N-A (amino-N/amide-N/amine-N) types, which was characterized by different pyrolysis stages. Around 80% of NH3-N yield was produced at devolatilisation stage, which was attributed to cyclization of more stable N-A into pyridinic-N/pyrrolic-N in chars, bond clearage of more liable N-A into amine-N in tars and further cyclization of amine-N into heterocyclic-N in tars. On the contrary, More than 90% of HCN-N yield was generated at secondary reaction stage due to a basically equal contribution from char-N and tar-N. The relevant pathways were ring scission of pyrrolic-N (chars) while ring-opening of heterocyclic-N (chars) and dehydrogenation of imines (tars). Besides, the additional mild HCN-N yield (devolatilisation stage) and limited NH3-N yield (secondary reaction stage) originated from dehydrogenation of amine-N in tars and hydrogenation of pyridinic-N in chars/bimolecular reaction of amine-N in tars, respectively. Particularly, two biomass species had an opposite sequence on the increasing rate of NH3-N yield (CMA > PMW) at devolatilisation stage and HCN-N yield (PMW> CMA) at secondary reaction stage. As a consequence, these findings could be well applied for N-rich nonlignocellulosic biomass containing similar fuel-N types, and to some extent provide guidance on the control of nitrogenous pollution emission for their energy utilization.
关键词	N-rich nonlignocellulosic biomass Evolution mechanisms N-A Pyrolysis stages NOx precursors
DOI	10.1016/j.apenergy.2018.03.015
关键词[WOS]	SEWAGE-SLUDGE PYROLYSIS ; NOX PRECURSORS ; N2O PRECURSORS ; TG-FTIR ; NITROGEN TRANSFORMATION ; HYDROTHERMAL TREATMENT ; RAPID PYROLYSIS ; CO-PYROLYSIS ; AMINO-ACIDS ; COMBUSTION
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51676195] ; National Natural Science Foundation of China[51661145022] ; Special Program for Key Basic Research of the Natural Science Foundation of Guangdong Province[2017B030308002]
WOS研究方向	Energy & Fuels ; Engineering
项目资助者	National Natural Science Foundation of China ; Special Program for Key Basic Research of the Natural Science Foundation of Guangdong Province
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000430519200003
出版者	ELSEVIER SCI LTD
引用统计	被引频次：81[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/23263
专题	中国科学院广州能源研究所
通讯作者	Wu, Chuangzhi
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
推荐引用方式 GB/T 7714	Zhan, Hao,Zhuang, Xiuzheng,Song, Yanpei,et al. Insights into the evolution of fuel-N to NO & IT;(x)& IT; precursors during pyrolysis of N-rich nonlignocellulosic biomass[J]. APPLIED ENERGY,2018,219:20-33.
APA	Zhan, Hao,Zhuang, Xiuzheng,Song, Yanpei,Yin, Xiuli,&Wu, Chuangzhi.(2018).Insights into the evolution of fuel-N to NO & IT;(x)& IT; precursors during pyrolysis of N-rich nonlignocellulosic biomass.APPLIED ENERGY,219,20-33.
MLA	Zhan, Hao,et al."Insights into the evolution of fuel-N to NO & IT;(x)& IT; precursors during pyrolysis of N-rich nonlignocellulosic biomass".APPLIED ENERGY 219(2018):20-33.