A. Bensaddik et al., EXAFS STUDY IN-SITU (EXTENDED X-RAY-ABSOR PTION FINE-STRUCTURE) OF THE REFORMING REACTION WITH SULFIDED PT-AL2O3 AND PT-RE-AL2O3 SYSTEMS, Journal de physique. IV, 6(C4), 1996, pp. 493-500
EXAFS has been used to follow in situ the structural evolution of sulf
ided Pt/Al2O3-Cl and PtRe/Al2O3-Cl catalysts during the hydrocarbon re
action (T = 500 degrees C, P(H-2) = 8 bars H-2 : n-C7H16 = 1:1 and T=3
00 degrees C, P(H-2) = 3 bars, H-2 : n-C7H16 = 1:1). The hydrocarbon c
onversion was monitored, via on line analysis, with a gas chromatograp
h. 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.