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	Sol-gel auto-combustion synthesis of zinc ferrite for moderate temperature desulfurization
	Zhang, Rongiun; Huang, Jiejie; Zhao, Hantao; Sun, Zhiqiang; Wang, Yang
刊名	Energy & fuels
	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
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000249608300027
内容类型	期刊论文
URI标识	http://www.corc.org.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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