IMR OpenIR
Mobile hydrogen monitoring in the wall of hydrogenation reactors
Yu, G; Zhang, XY; Du, YL
Corresponding AuthorYu, G()
2001
Source PublicationCORROSION
ISSN0010-9312
Volume57Issue:1Pages:71-77
AbstractA test technique was developed for in-situ, instantaneous, and nondestructive inspection of the distribution of mobile hydrogen in the wall of a hydrogenation reactor operating at an elevated temperature and high pressure. The base current density of the developed sensor was < 0.6 muA/cm(2) at cooling water temperatures below 313 K (40degreesC). The steady current density, i(infinity), of atomic hydrogen oxidation needed calibrating from the direct-measuring sensor signal, i(sen). The calibration equation could be expressed as i(infinity) = 1.2 i(sen). Its factor 1.2 corrects the difference in the direction change of hydrogen diffusion from one dimension in the steel wall to three dimensions in the space between the steel external surface and the external side of the Pd alloy in the sensor. The temperature of the cooling water of the sensor obviously influenced the steady permeation current density. Results of the study showed that the temperature of the sensor should be kept constant so as to assure measurement accuracy. The specifications of the developed probe available for elevated temperature are presented in this paper. Inspection results of hydrogen concentration obtained from an operating hydrogenation reactor are displayed.
Keywordhydrogen distribution hydrogen embrittlement hydrogen permeation hydrogenation reactor hydrogen sensor nondestructive test technique
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000176355600009
PublisherNATL ASSN CORROSION ENG
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/111908
Collection中国科学院金属研究所
Corresponding AuthorYu, G
Affiliation1.Chinese Acad Sci, Inst Corros & Protect Met, State Key Lab Corros & Protect, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Yu, G,Zhang, XY,Du, YL. Mobile hydrogen monitoring in the wall of hydrogenation reactors[J]. CORROSION,2001,57(1):71-77.
APA Yu, G,Zhang, XY,&Du, YL.(2001).Mobile hydrogen monitoring in the wall of hydrogenation reactors.CORROSION,57(1),71-77.
MLA Yu, G,et al."Mobile hydrogen monitoring in the wall of hydrogenation reactors".CORROSION 57.1(2001):71-77.
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