A SIMPLE METHOD OF ESTIMATING SURFACE-REACTION RATES BY MOMENT ANALYSIS OF TAP REACTOR PULSE EXPERIMENTS - APPLICATION TO BENZENE HYDROGENATION

Authors
LAFYATIS DS CRETEN G DEWAELE O FROMENT GF
Citation
Ds. Lafyatis et al., A SIMPLE METHOD OF ESTIMATING SURFACE-REACTION RATES BY MOMENT ANALYSIS OF TAP REACTOR PULSE EXPERIMENTS - APPLICATION TO BENZENE HYDROGENATION, Canadian journal of chemical engineering, 75(6), 1997, pp. 1100-1107
Citations number
16
Categorie Soggetti
Engineering, Chemical
Journal title
Canadian journal of chemical engineering → ACNP
ISSN journal
00084034
Volume
75
Issue
6
Year of publication
1997
Pages
1100 - 1107
Database
ISI
SICI code
0008-4034(1997)75:6<1100:ASMOES>2.0.ZU;2-U
Abstract
A method of estimating the lifetime of surface reaction intermediates by moment analysis of TAP reactor pulse response curves has been devel oped. The average surface lifetime of the adsorbed reaction intermedia te in the hydrogenation of benzene to cyclohexane over Pt/SiO2 at 140 degrees C and 92 kPa of hydrogen is 38 +/- 4 ms, as measured by a TAP pulse experiment. The steady-state turnover frequency for this reactio n under the same conditions is 1.0 +/- 0.2 s(-1). This implies that th e surface coverage of Pt by benzene is low under the steady-state cond itions.