Chemical-Looping Reforming of Methane Using Iron Based Oxygen Carrier Modified with Low Content Nickel

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	Chemical-Looping Reforming of Methane Using Iron Based Oxygen Carrier Modified with Low Content Nickel
	Wei, Guoqiang; He, Fang; Huang, Zhen; Zhao, Kun; Zheng, Anqing; Li, Haibin
刊名	chinese journal of chemistry
	2014-12-01
卷号	32 期号:12 页码:1271-1280
关键词	methane chemical-looping reforming chemical-looping reforming oxygen carrier iron low content nickel
英文摘要	fe2o3/al2o3 and fe2o3/al2o3 modified by low content of ni (below 2% in weight) oxygen carriers were prepared by mechanical mixing and impregnation method. the synthesized oxygen carriers were characterized by means of x-ray diffraction (xrd), x-ray fluorescence (xrf), scanning electron microscopy (sem), bet-surface area and temperature programmed reduction (tpr). besides, redox cyclic reactivity and the performance of chemical looping reforming of methane of the oxygen carriers were studied in a thermal gravimetrical analysis (tga) and fixed bed at 850 degrees c. it was observed that the redox reactivity of the oxygen carriers is improved by ni addition because synergic effect may occur between nio and fe2o3/al2o3 to form nife2o4 and nial2o4 spinel phases. however, the improvement was not apparent as ni addition reached 1 wt% or more because more nickel loaded resulted in methane decomposition into h-2 and carbon leading to carbon deposition. the sem and bet analysis showed that nife2o4 and nial2o4 particles dispersed into the pores of the fe2o3/al2o3 particles in the course of preparation. in addition, the resistance to sintering of the modified samples increased with the ni addition increasing. the results of successive redox cycles showed that the ni modified fe2o3/al2o3 oxygen carriers have good regenerability. with integration of reactivity and carbon deposition, the content 1.04 wt% of nickel doping was an optimal amount in the three modified samples.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, multidisciplinary
研究领域[WOS]	chemistry
关键词[WOS]	circulating fluidized-bed ; synthesis gas ; catalytic-properties ; hydrogen-production ; combustion ; oxides ; fe ; cu ; perovskites ; anthracite
收录类别	SCI
语种	英语
WOS记录号	WOS:000346703500013
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/10688]
专题	中国科学院广州能源研究所
作者单位	Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Wei, Guoqiang,He, Fang,Huang, Zhen,et al. Chemical-Looping Reforming of Methane Using Iron Based Oxygen Carrier Modified with Low Content Nickel[J]. chinese journal of chemistry,2014,32(12):1271-1280.
APA	Wei, Guoqiang,He, Fang,Huang, Zhen,Zhao, Kun,Zheng, Anqing,&Li, Haibin.(2014).Chemical-Looping Reforming of Methane Using Iron Based Oxygen Carrier Modified with Low Content Nickel.chinese journal of chemistry,32(12),1271-1280.
MLA	Wei, Guoqiang,et al."Chemical-Looping Reforming of Methane Using Iron Based Oxygen Carrier Modified with Low Content Nickel".chinese journal of chemistry 32.12(2014):1271-1280.