Calcium-promoted catalytic activity of potassium carbonate for steam gasification of coal char: Transformations of sulfur

	Calcium-promoted catalytic activity of potassium carbonate for steam gasification of coal char: Transformations of sulfur
	Liu LJ(刘利娟); Liu, LJ; 崔明启;Liu, HJ; Cui, MQ; Hu, YF; Wang, J
刊名	FUEL
	2013
卷号	112 页码:687-694
关键词	Coal char Catalytic gasification Pyrolysis Sulfur XANES
英文摘要	K2CO3-catalyzed char gasification with steam was carried out on a laboratory fix-bed reactor and it featured in the preparation of char from a high-sulfur coal by the prior addition of Ca(OH)(2) to the coal. This work was focused on the clarification of sulfur transformations during the coal pyrolysis and the char gasification. Sulfur K-edge X-ray absorption near edge structure (XANES) spectroscopy was employed to determine quantitatively the forms of sulfur in coal and their changes in process. Results showed that the addition of Ca(OH)(2) to coal promoted the decomposition of both pyrite and organic sulfur during the charring. In the K2CO3-catalyzed char gasification, the calcium additive enabled more sulfur to be retained eventually as K2SO4 rather than CaSO4. The formation of K2SO4 would be conducive to the recycled use of potassium catalyst. (C) 2012 Elsevier Ltd. All rights reserved.
学科主题	Energy & Fuels; Engineering
收录类别	SCI
WOS记录号	WOS:000321735400095
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224039]
专题	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Liu LJ,Liu, LJ,崔明启；Liu, HJ,et al. Calcium-promoted catalytic activity of potassium carbonate for steam gasification of coal char: Transformations of sulfur[J]. FUEL,2013,112:687-694.
APA	刘利娟,Liu, LJ,崔明启；Liu, HJ,Cui, MQ,Hu, YF,&Wang, J.(2013).Calcium-promoted catalytic activity of potassium carbonate for steam gasification of coal char: Transformations of sulfur.FUEL,112,687-694.
MLA	刘利娟,et al."Calcium-promoted catalytic activity of potassium carbonate for steam gasification of coal char: Transformations of sulfur".FUEL 112(2013):687-694.