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化学链制氢中Fe2O3/LaFeO3载氧体的性能研究

梁皓 ,  宋喜军 ,  尹泽群 ,  张喜文 ,  方向晨

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引用本文: 梁皓, 宋喜军, 尹泽群, 张喜文, 方向晨. 化学链制氢中Fe2O3/LaFeO3载氧体的性能研究[J]. 燃料化学学报, 2013, 41(12): 1512-1519. shu
Citation:  LIANG Hao, SONG Xi-jun, YIN Ze-qun, ZHANG Xi-wen, FANG Xiang-chen. Performance of Fe2O3/LaFeO3 as oxygen carrier in chemical-looping hydrogen generation[J]. Journal of Fuel Chemistry and Technology, 2013, 41(12): 1512-1519. shu

化学链制氢中Fe2O3/LaFeO3载氧体的性能研究

    通讯作者: 梁皓，女，高级工程师，从事化学环制氢方面研究。Tel：024-56389767。
摘要: 采用柠檬酸络合法制备Fe2O3/LaFeO3复合氧化物，将该氧化物作为化学链制氢过程的载氧体，在反应温度为900 ℃、常压下，对Fe2O3/CH4（剂烷比）、进水量、金属负载量进行了考察。结果表明，剂烷比为2：1、进水量为0.1 mL、质量分数15%Fe时载氧体性能最好，甲烷转化率达到60%，单次循环氢气产量为45 mL。将该评价结果与XRD和H2-TPR表征结果进行关联发现，反应过程的活性位不是金属氧化物，而是吸附氧，而且吸附氧越容易还原，甲烷转化率和氢气产量越高。通过连续60次还原-氧化循环发现，该载氧体上甲烷转化率和氢气产量比较稳定，循环后仍然保持钙钛矿结构。

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  • 收稿日期:  2013-03-07
  • 网络出版日期:  2013-05-04
通讯作者: 陈斌, bchen63@163.com
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