Effect of HCl on the corrosion and wear of in-bed tubes in a laboratory simulated bubbling fluidized bed

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	Effect of HCl on the corrosion and wear of in-bed tubes in a laboratory simulated bubbling fluidized bed
	Hou, PY ; Niu, Y ; Sum, TJ ; Stringer, J
通讯作者	Hou, PY()
	1999-12-01
发表期刊	WEAR
ISSN	0043-1648
卷号	233 页码:635-646
摘要	Heat-exchanger tubes in fluidized bed combustors (FBCs) often suffer material loss due to combined corrosion and erosion. The effect of chlorine on in-bed tube wastage and its possible mechanism are being studied using the EPRI/LBNL FBC wastage simulator. This test rig was designed to simulate dense particle impacts on tube bottoms with well-controlled parameters, and has been proven to closely reflect situations found in operating bubbling FBCs, In this study, HCl gas was chosen to be the Cl source and was introduced into the fluidizing air with a 50-ppm concentration. Tests were performed at temperatures ranging from ambient to 400 degrees C using 1018 low carbon steel rods in a bed of commercial SiO(2) sand that had an average size of 800 mu m. The wear profile after each test was measured using a profilometer. Results showed an increase in material wastage rates in the presence of HCl, and that the rate was significantly higher with higher test temperatures. Microstructural and chemical analysis of the wear surface and corrosion products are reported. It is concluded that the dominating effect of HCl on the wastage rates is due to an enhanced oxidation and a reduced scale adherence. (C) 1999 Elsevier Science S.A. AU rights reserved.
关键词	corrosion wear in-bed tube
收录类别	SCI
语种	英语
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000084590500070
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/109048
专题	中国科学院金属研究所
通讯作者	Hou, PY
作者单位	1.Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA 2.Chinese Acad Sci, Inst Corros & Protect Met, Shenyang, Peoples R China 3.Elect Power Res Inst, Palo Alto, CA 94304 USA
推荐引用方式 GB/T 7714	Hou, PY,Niu, Y,Sum, TJ,et al. Effect of HCl on the corrosion and wear of in-bed tubes in a laboratory simulated bubbling fluidized bed[J]. WEAR,1999,233:635-646.
APA	Hou, PY,Niu, Y,Sum, TJ,&Stringer, J.(1999).Effect of HCl on the corrosion and wear of in-bed tubes in a laboratory simulated bubbling fluidized bed.WEAR,233,635-646.
MLA	Hou, PY,et al."Effect of HCl on the corrosion and wear of in-bed tubes in a laboratory simulated bubbling fluidized bed".WEAR 233(1999):635-646.