Study on syngas methanation over municipal solid waste char supported Ni catalyst

doi:10.1016/j.fuel.2021.121222

GIEC OpenIR

	Study on syngas methanation over municipal solid waste char supported Ni catalyst
	Luo, Jia 1; Chen, Dezhen 1; Yue, Xia 1; Feng, Yuheng 1; Huang, Zhen 2
	2021-11-01
发表期刊	FUEL
ISSN	0016-2361
卷号	303 页码:14
通讯作者	Chen, Dezhen(chendezhen@tongji.edu.cn) ; Huang, Zhen(huangzhen@ms.giec.ac.cn)
摘要	Municipal solid waste pyrolysis char (MSWC) has none suitable high-valued applications. In this research, a Ni/ MSWC catalyst was prepared by loading Ni on to MSWC through impregnation for syngas methanation. Both continuous and intermittent operations were carried out to investigate activity and stability of the Ni/MSWC catalyst. Results showed that the catalyst exhibited high activity with CO conversion reaching 100%, CH4 yield higher than 100% in the beginning. SEM images of the fresh Ni/MSWC demonstrated that Ni particles were highly dispersed on the MSWC surface. In the continuous operation, the CH4 yield maintained above 90% for 29 h. In the 60 h's intermittent operation with 10 h as a cycle, CH4 yield decreased rapidly from 102.4% in the first cycle to 78.0% at the start of the second cycle, and it decreased to around 37% at the end of the third cycle but maintained this minimum till the end; while sharp rises appeared at the start of each cycle. Decreases in CO conversion and CH4 selectivity are found to be closely related to aggregation of Ni particles, carbon deposition and collapse of the char structure. However, carbon deposition in the intermittent operation could be alleviated by N2 purging, while whisker carbon deposition was observed in the used Ni/MSWC after 39 h's continuous operation. Highly dispersed Ni particles on the MSWC surface and proper interaction between Ni and MSWC were favorable to the activity of the catalyst, but its stability should be further improved.
关键词	MSW pyrolysis char Syngas methanation Ni-based catalyst CO conversion CH4 selectivity CH4 yield
DOI	10.1016/j.fuel.2021.121222
关键词[WOS]	CO2 METHANATION ; HYDROGEN-PRODUCTION ; NICKEL ; PYROLYSIS ; GAS ; TPD ; PERFORMANCES ; STABILITY ; CRACKING ; BIOMASS
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51776141]
WOS研究方向	Energy & Fuels ; Engineering
项目资助者	National Natural Science Foundation of China
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000693236000005
出版者	ELSEVIER SCI LTD
引用统计	被引频次：6[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/344007/33885
专题	中国科学院广州能源研究所
通讯作者	Chen, Dezhen; Huang, Zhen
作者单位	1.Tongji Univ, Sch Mech Engn, Thermal & Environm Engn Inst, 1239 Siping Rd, Shanghai 200092, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, CAS, Guangzhou, Peoples R China
推荐引用方式 GB/T 7714	Luo, Jia,Chen, Dezhen,Yue, Xia,et al. Study on syngas methanation over municipal solid waste char supported Ni catalyst[J]. FUEL,2021,303:14.
APA	Luo, Jia,Chen, Dezhen,Yue, Xia,Feng, Yuheng,&Huang, Zhen.(2021).Study on syngas methanation over municipal solid waste char supported Ni catalyst.FUEL,303,14.
MLA	Luo, Jia,et al."Study on syngas methanation over municipal solid waste char supported Ni catalyst".FUEL 303(2021):14.