STUDY OF CORROSION ON COPPER STRIPS BY PETROLEUM NAPHTHA IN THE ASTM D-130 TEST BY MEANS OF ELECTRONIC MICROSCOPY (SEM) AND ENERGY DISPERSIVE-X-RAY (EDX)

被引:9
作者
GARCIAANTON, J
MONZO, J
GUINON, JL
GOMEZ, D
COSTA, J
机构
[1] Ingeniería Química y Nuclear, E. T. S. I. Industriales, Universidad Politécnica de Valencia, Valencia, E-46071
来源
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1990年 / 337卷 / 04期
关键词
D O I
10.1007/BF00322216
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Corrosion in heat-engines has been attributed to some undesirable sulfur compounds present in petroleum naphthas, fuel-oils or gasolines. The corrosivity of these petroleum products is measured by means of the ASTM D-130 copper strip test, which is based on discoloration of a standard copper strip immersed into the petroleum products at 50°C for 3 h. The present paper studies various aspects of corrosivity of different sulfur compounds in petroleum naphthas by means of the ASTM D-130 test together with the electronic microscopy (SEM) and energy dispersive X-ray (EDX) techniques. These non-destructive techniques allow to know the strip corrosive morphology and to determine the sulfur concentration on this strip. Of the various types of sulfur compounds present in petroleum naphthas, the data show that elemental sulfur is corrosive to copper, but its corrosive level differes from naphtha to naphtha. Among the different mercaptans only ethyl-mercaptan presents corrosivity. The disulfides and sulfides tested are non-corrosive to copper. © 1990 Springer-Verlag.
引用
收藏
页码:382 / 388
页数:7
相关论文
共 34 条
[11]   SIMULTANEOUS POTENTIOMETRIC DETERMINATION OF POLYSULFIDE AND THIOL SULFUR IN PETROLEUM FRACTIONS [J].
FARROHA, SM ;
HABBOUSH, AE ;
SAFFO, FF ;
ABDULNOUR, MH .
ANALYST, 1987, 112 (12) :1773-1775
[12]   CHS+ SULFUR COMPOUND ANALYSIS BY GAS CHROMATOGRAPHY MASS SPECTROMETRY [J].
GALLEGOS, EJ .
ANALYTICAL CHEMISTRY, 1975, 47 (07) :1150-1154
[13]  
GAMAGE CF, 1974, ADV XRAY ANAL, V17, P542
[14]  
GARCIAANTON J, 1988, 22 REUN BIEN REAL SO, V13, P106
[15]   DETERMINATION OF ELEMENTAL SULFUR, MERCAPTAN AND DISULFIDE IN PETROLEUM NAPHTHA BY DIFFERENTIAL-PULSE POLAROGRAPHY [J].
GUINON, JL ;
MONZO, J ;
GARCIAANTON, J ;
URENA, C ;
COSTA, J .
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1990, 337 (04) :372-376
[16]   SURFACE-ANALYSIS METHODS IN THE INVESTIGATION OF CORROSION-INHIBITOR PERFORMANCE [J].
HOLM, R ;
HOLTKAMP, D ;
KLEINSTUCK, R ;
ROTHER, HJ ;
STORP, S .
FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1989, 333 (4-5) :546-554
[17]   SW POLAROGRAPHIC DETERMINATION OF DISULFIDE MERCAPTAN AND FREE SULFUR IN PETROLEUM NAPHTHA [J].
KASHIKI, M ;
ISHIDA, K .
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1967, 40 (01) :97-+
[19]   APPLICATION OF POLAROGRAPHY IN PETROCHEMICAL ANALYSIS [J].
POLAK, J ;
JANACEK, L .
TRAC-TRENDS IN ANALYTICAL CHEMISTRY, 1989, 8 (04) :145-150
[20]  
Price B. J., 1974, American Laboratory, V6, P62