Characteristics of a CaSO4 oxygen carrier for chemical-looping combustion: reaction with polyvinylchloride pyrolysis gases in a two-stage reactor

doi:10.1039/c5ra02044a

QIBEBT-IR > 热化学转化研究组

	Characteristics of a CaSO4 oxygen carrier for chemical-looping combustion: reaction with polyvinylchloride pyrolysis gases in a two-stage reactor
	Bi, Wenzhuo 1,2; Chen, Tianju1 ; Zhao, Ruidong1 ; Wang, Zhiqi1 ; Wu, Jingli1 ; Wu, Jinhu1
	2015
发表期刊	RSC ADVANCES
卷号	5 期号:44 页码:34913-34920
摘要	Chemical-looping combustion (CLC), which is a promising technique that includes an inherent separation of CO2 may reduce the generation of dioxins in municipal solid waste (MSW) disposal because in a CLC system, no free oxygen is available for incineration process. Polyvinylchloride (PVC) and kitchen garbage are the main chlorine substances in MSW. The reaction between PVC pyrolysis gas and a calcium (Ca)-based oxygen carrier was investigated in a two-stage reactor in this study. The thermal decomposition and reduction/oxidation cycle behaviors of the oxygen carrier were investigated by analyzing methane (CH4) using a thermogravimetric analyzer (TGA). The characteristics of CaSO4/Fe2O3 oxygen carrier were determined by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed that the addition of Fe2O3 into CaSO4 can enhance the reaction rate, and also that the CaSO4/Fe2O3 oxygen carrier showed a good heat stability at the temperature of 900 degrees C. The reduction/oxidation cycles confirmed that the decomposition of the CaSO4/Fe2O3 oxygen carrier is usually accompanied by some side reactions. These side reactions could cause the loss of their regeneration ability. The CaSO4/Fe2O3 oxygen carrier successfully reacted with PVC pyrolysis gas in a two-stage reactor and the complete reaction ratio of m(PVC) to m(oxygen carrier) is 8. The research documented herein provides a useful reference for the utilization of MSWs.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1039/c5ra02044a
关键词[WOS]	MUNICIPAL SOLID-WASTE ; DECOMPOSITION ; MECHANISM ; PERFORMANCE ; SEPARATION ; BEHAVIOR ; METHANE ; IRON ; COAL
收录类别	SCI
语种	英语
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000353168300050
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/6431
专题	热化学转化研究组
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Bi, Wenzhuo,Chen, Tianju,Zhao, Ruidong,et al. Characteristics of a CaSO4 oxygen carrier for chemical-looping combustion: reaction with polyvinylchloride pyrolysis gases in a two-stage reactor[J]. RSC ADVANCES,2015,5(44):34913-34920.
APA	Bi, Wenzhuo,Chen, Tianju,Zhao, Ruidong,Wang, Zhiqi,Wu, Jingli,&Wu, Jinhu.(2015).Characteristics of a CaSO4 oxygen carrier for chemical-looping combustion: reaction with polyvinylchloride pyrolysis gases in a two-stage reactor.RSC ADVANCES,5(44),34913-34920.
MLA	Bi, Wenzhuo,et al."Characteristics of a CaSO4 oxygen carrier for chemical-looping combustion: reaction with polyvinylchloride pyrolysis gases in a two-stage reactor".RSC ADVANCES 5.44(2015):34913-34920.