Processing of coked Pt-Re/γ-Al2O3 catalysts with high-concentration ozone dissolved in supercritical carbon dioxide

被引：0
|
作者：
S. N. Gaydamaka
V. V. Timofeev
Yu. V. Guryev
D. A. Lemenovskiy
G. P. Brusova
O. O. Parenago
V. N. Bagratashvili
V. V. Lunin
机构：
[1] Kurnakov Institute of General and Inorganic Chemistry Russian Academy of Sciences,Institute of Laser and Information Technologies
[2] Moscow State University,undefined
[3] Russian Academy of Sciences,undefined
来源：
Russian Journal of Physical Chemistry B | 2010年 / 4卷
关键词：
hydrocarbon reforming catalysts; coke; supercritical carbon dioxide; ozone;
D O I：
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学科分类号：
摘要：
The potentialities of low-temperature (50–150°C) regeneration of coked Pt-Re/γ-Al2O3 bimetallic catalysts of reforming with high-concentration ozone dissolved in supercritical carbon dioxide (SC-CO2) are examined. Raman spectroscopy, thermogravimetric, and differential microcalorimetric studies show that solid organic deposit (coke), a by-product of the reforming process, can be partially removed from the mesoporous surface of a coked catalyst by processing with an O3/SC-CO2 mixture without any loss of the active components (Pt, Re). Treatment of coked Pt-Re/γ-Al2O3 catalysts with an O3/SC-CO2 mixture causes changes in the parameters (extent of conversion, selectivity) of the catalytic reforming of n-heptane.
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页码：1217 / 1227
页数：10
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