EXAFS study in situ (extended X-ray absorption finestructure) of the reforming reaction with sulfided Pt-Al2O3 and Pt-Re-Al2O3 systems

被引：0
|
作者：
Bensaddik, A
Bazin, D
Dexpert, H
Caballero, A
Lynch, J
Didillon, B
机构：
[1] ICMS,SEVILLE 41080,SPAIN
[2] INST FRANCAIS PETR,F-92506 RUEIL MALMAISON,FRANCE
来源：
JOURNAL DE PHYSIQUE IV | 1996年 / 6卷 / C4期
关键词：
D O I：
10.1051/jp4:1996447
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
EXAFS has been used to follow in situ the structural evolution of sulfided Pt/Al2O3-Cl and PtRe/Al2O3-Cl catalysts during the hydrocarbon reaction (T = 500 degrees C, P(H-2) = 8 bars H-2 : n-C7H16 = 1:1 and T=300 degrees C, P(H-2) = 3 bars, H-2 : n-C7H16 = 1:1). The hydrocarbon conversion was monitored, via on line analysis, with a gas chromatograph. For the monometallic, we observe a sintering of the metal particles. In the case of sulfided PtRe/Al2O3-Cl catalysts no sintering of the metallic particles was observed.
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页码：493 / 500
页数：8
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