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：

暂无

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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.

引用

页码：1217 / 1227

页数：10