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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/3339

Title: Mechanism of silica-immobilized thioanisole conversion during an AP-TPR experiment
Authors: VAN DEN RUL, Heidi
YPERMAN, Jan
Buchanan, AC
Britt, PF
MAES, Inge
FRANCO, Dirk
MULLENS, Jules
VAN POUCKE, Lucien
Issue Date: 1997
Publisher: AMER CHEMICAL SOC
Citation: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 213. p. 32-FUEL
Abstract: a kinetic study of AP-TPR-profile of silica immobilized thioanisole was carried out, resulting in a better understanding of the mechanistic behaviour of this model compound under the specified conditions. AP-TPR (Athmospheric Pressure - Temperature-Programmed Reduction) with potentiometric sulfur detection is a thermoanalytical method used to differentiate between sulfur forms in solids like coals. In this respect, sillica-immobilized thioanisole was recorded as a nonmelting calibrant. Several kinetic methods exist to analyze a heterogenous process involving a solid that is heated by a linear temperature programme. The isoconversial method can be considered as one of the most accurate. It was applied to to the AP-TPR-profile of thioanisole, showing the reduction of this compound very quickly becomes a diffusion-controlled reaction. Kinetic parameters are reported for this process under the AP-TPR-conditions.
Notes: LIMBURGS UNIV CENTRUM,LAB INORGAN & PHYS CHEM,B-3590 DIEPENBEEK,BELGIUM. OAK RIDGE NATL LAB,DIV CHEM & ANALYT SCI,OAK RIDGE,TN 37831.
URI: http://hdl.handle.net/1942/3339
ISI #: A1997WP18503319
ISSN: 0065-7727
Type: Journal Contribution
Appears in Collections: Research publications

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