Chemical looping gasification of high nitrogen wood waste using a copper slag oxygen carrier modified by alkali and alkaline earth metals

doi:10.1016/j.cej.2020.128344

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	Chemical looping gasification of high nitrogen wood waste using a copper slag oxygen carrier modified by alkali and alkaline earth metals
	Wang, Yonghao 1,2; Liu, Ming 1,2,3; Dong, Nanhang 2; Lin, Yan 1; Chang, Guozhang 4; Wei, Guoqiang 1; Zhao, Kun1 ; Wang, Xiaobo1 ; Zheng, Anqing1 ; Zhao, Zengli1 ; Huang, Zhen 1,4,5; Fang, Yitian 6; Li, Haibin1,4,5
	2021-04-15
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
卷号	410 页码:12
通讯作者	Huang, Zhen(huangzhen@ms.giec.ac.cn)
摘要	Chemical looping gasification (CLG) can achieve clean and highly efficient use of high nitrogen wood waste (HNWW). In this work, the feasibility of CLG of HNWW is explored using a modified copper slag (CS1100) as an oxygen carrier (OC). The CS1100 sample modified by alkali and alkaline earth metals (AAEMs) was first prepared, and then the reactivity of different OCs was evaluated. The K-modified CS1100 (K-CS) sample showed the highest reactivity due to the formation of KFe2O4. Lattice oxygen was beneficial to char conversion, evidently promoting HNWW conversion. The K-CS sample showed the highest carbon conversion (74.65%) and valid gas yield (641 mL/g), followed by the Ca-CS and Na-CS samples, which exhibited a much higher carbon conversion than the inert SiO2 sample (40.45% and 327 mL/g). The K-CS sample can evidently promote the release of N and the subsequent oxidation of nitrogen-containing pollutants (i.e., NH3 and HCN), thus lowering the emissions of nitrogen pollutants. Char-N accounts for 22.54% of N during pyrolysis; however, char-N only accounts for 2.27% of N during CLG. Additionally, compared to pyrolysis, the emissions of nitrogen-containing pollutants decreased by approximately 20% in CLG. The Protein-N (N-P) and Urea-N (N-U) were decomposed to form Pyrrole-N (N-5) and Pyridine-N (N-6); and then formed Protonated pyridine N (N-Q) and Pyridine N-oxide (N-X) during thermal conversion of HNWW. Additionally, more N-X and N-6 remained in the residual char during CLG than during pyrolysis because of the presence of active OC. KFe2O4 acted as a catalyst rather than an oxidizer during CLG, and the K-CS sample can act as an OC for recycling.
关键词	Chemical looping gasification (CLG) High nitrogen wood waste (HNWW) Copper slag (CS) Alkali and alkaline earth metals (AAEMs) Nitrogen pollutants
DOI	10.1016/j.cej.2020.128344
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51776210] ; National Natural Science Foundation of China[52076209] ; National Key Research and Development Program of China[2018YFB0605405] ; DNL Cooperation Fund, CAS[DNL180205] ; Foundation of State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering[2018-K15] ; Youth Innovation Promotion Association, CAS[2018384]
WOS研究方向	Engineering
项目资助者	National Natural Science Foundation of China ; National Key Research and Development Program of China ; DNL Cooperation Fund, CAS ; Foundation of State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering ; Youth Innovation Promotion Association, CAS
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:000626520100005
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：16[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/344007/32848
专题	中国科学院广州能源研究所
通讯作者	Huang, Zhen
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, 2 Nengyuan Rd, Guangzhou 510640, Peoples R China 2.Northeast Elect Power Univ, Sch Energy & Power Engn, 169 Changchun Rd, Jilin 132012, Jilin, Peoples R China 3.Grandblue Foshan Green Elect Solid Waste Manageme, Door 2, Foshan 528225, Peoples R China 4.Ningxia Univ, State Key Lab High Efficiency Utilizat Coal & Gre, 489 Helan Mt West Rd, Yinchuan 750021, Peoples R China 5.Chinese Acad Sci, Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China 6.Chinese Acad Sci, Inst Coal Chem, 27 South Taoyuan Rd, Taiyuan 030001, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Wang, Yonghao,Liu, Ming,Dong, Nanhang,et al. Chemical looping gasification of high nitrogen wood waste using a copper slag oxygen carrier modified by alkali and alkaline earth metals[J]. CHEMICAL ENGINEERING JOURNAL,2021,410:12.
APA	Wang, Yonghao.,Liu, Ming.,Dong, Nanhang.,Lin, Yan.,Chang, Guozhang.,...&Li, Haibin.(2021).Chemical looping gasification of high nitrogen wood waste using a copper slag oxygen carrier modified by alkali and alkaline earth metals.CHEMICAL ENGINEERING JOURNAL,410,12.
MLA	Wang, Yonghao,et al."Chemical looping gasification of high nitrogen wood waste using a copper slag oxygen carrier modified by alkali and alkaline earth metals".CHEMICAL ENGINEERING JOURNAL 410(2021):12.