globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.jcou.2016.04.007
Scopus记录号: 2-s2.0-84964573689
论文题名:
Application of zirconium modified Cu-based oxygen carrier in chemical looping reforming
作者: Alirezaei I.; Hafizi A.; Rahimpour M.R.; Raeissi S.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2016
卷: 14
起始页码: 112
结束页码: 121
语种: 英语
英文关键词: Chemical looping reforming ; CO2 utilization ; Hydrogen production ; Oxygen carrier
Scopus关键词: Alumina ; Carbon ; Carbon dioxide ; Copper ; Energy dispersive spectroscopy ; Field emission microscopes ; Oxides ; Oxygen ; Production ; Scanning electron microscopy ; Temperature ; X ray powder diffraction ; X ray spectroscopy ; Zirconia ; Carbon dioxide conversions ; Chemical-looping reforming ; Copper based oxygen carriers ; Cu-based oxygen carriers ; Energy dispersive X ray spectroscopy ; Field emission scanning electron microscopy ; Oxygen Carrier ; Reduction temperatures ; Hydrogen production
英文摘要: The modification of alumina support of copper-based oxygen carrier using zirconium oxide is investigated in this study. The CO2 modified chemical looping reforming (CO2-CLR) process is applied to evaluate the synthesized oxygen carriers at different reduction temperatures (550-750 °C). The presence of ZrO2 in the support structure of oxygen carrier inhibited the deposition of coke on the samples. The results revealed that the addition of 20% zirconium oxide could effectively improve the efficiency of oxygen carrier at different reduction temperatures. In addition, the effect of CH4/CO2 ratio in feed (0.5-3) and copper loading percentage (10, 15, 20, 25, 30) are investigated on methane and carbon dioxide conversion, hydrogen production yield and CO/CO2 ratio. The synthesized oxygen carriers were characterized by X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM), BET and energy dispersive X-ray spectroscopy (EDX) techniques. The 15Cu/20Zr-Al as optimized oxygen carrier exposed a mesoporous structure with a high surface area of 315.9 m2 g-1. The redox results revealed that 15 Cu/20 Zr-Al oxygen carrier exhibited the highest activity and showed about 99.2% CH4 conversion at a low temperature of 650 °C. This oxygen carrier revealed high stability for CH4 and CO2 conversion, hydrogen production yield and CO/CO2 ratio during 16 redox cycles at 650 °C. © 2016 Published by Elsevier Ltd.
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被引频次[WOS]:41   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52916
Appears in Collections:影响、适应和脆弱性

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Recommended Citation:
Alirezaei I.,Hafizi A.,Rahimpour M.R.,et al. Application of zirconium modified Cu-based oxygen carrier in chemical looping reforming[J]. Journal of CO2 Utilization,2016-01-01,14
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