Sol-gel auto-combustion synthesis of zinc ferrite for moderate temperature desulfurization
文献类型：期刊论文
| 作者 | Zhang, Rongiun; Huang, Jiejie; Zhao, Hantao; Sun, Zhiqiang; Wang, Yang |
| 刊名 | Energy & fuels
 |
| 出版日期 | 2007-09-01 |
| 卷号 | 21期号:5页码:2682-2687 |
| ISSN号 | 0887-0624 |
| DOI | 10.1021/ef070064w |
| 通讯作者 | Zhang, rongiun(rongjunzhang@sxicc.ac.cn) |
| 英文摘要 | Zinc ferrite as a desulfurization sorbent with an average crystallite size of about 36 nm was synthesized by a sol-gel auto-combustion method. the precursor for the sorbent was a gel obtained from metal nitrates and citric acid by a sol process. the nitrate-citrate gel exhibits a self-propagating combustion behavior, and after combustion, it can transform into a nanosized spinel structured zinc ferrite directly. the prepared sorbent has a larger specific surface area and higher reactivity when compared with the sorbent achieved by a solid mixing method, and it could efficiently reduce the h2s concentration from 6000 ppm to less than 2 ppm at a moderate temperature range. the sulfur capacity at 400 degrees c reaches about 38.5 g of sulfur/100 g of sorbent, which corresponds to 96.4% of the theoretical value. the temperature programmed oxidation test for the sulfided sorbent shows that the most sulfur is desorbed before 500 degrees c. xrd results confirm that the sulfided sample after exposure to a 5% o-2/n-2 gas mixture at 500 degrees c can be regenerated completely, which indicates that the regeneration temperature of the sorbent prepared by the sol-gel auto-combustion method could be greatly reduced. |
| WOS关键词 | HOT GAS DESULFURIZATION ; H2S REMOVAL ; COAL-GAS ; OXIDE SORBENTS ; IRON-OXIDE ; REDUCTION ; NANOCOMPOSITES ; REGENERATION ; REACTIVITY ; TITANATE |
| WOS研究方向 | Energy & Fuels ; Engineering |
| WOS类目 | Energy & Fuels ; Engineering, Chemical |
| 语种 | 英语 |
| WOS记录号 | WOS:000249608300027 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2383493 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhang, Rongiun |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, Taiyuan 030001, Shanxi, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Rongiun,Huang, Jiejie,Zhao, Hantao,et al. Sol-gel auto-combustion synthesis of zinc ferrite for moderate temperature desulfurization[J]. Energy & fuels,2007,21(5):2682-2687. |
| APA | Zhang, Rongiun,Huang, Jiejie,Zhao, Hantao,Sun, Zhiqiang,&Wang, Yang.(2007).Sol-gel auto-combustion synthesis of zinc ferrite for moderate temperature desulfurization.Energy & fuels,21(5),2682-2687. |
| MLA | Zhang, Rongiun,et al."Sol-gel auto-combustion synthesis of zinc ferrite for moderate temperature desulfurization".Energy & fuels 21.5(2007):2682-2687. |
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来源：中国科学院大学
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