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|Title:||Mechanism of silica-immobilized thioanisole conversion during an AP-TPR experiment||Authors:||VAN DEN RUL, Heidi
VAN POUCKE, Lucien
|Issue Date:||1997||Publisher:||AMER CHEMICAL SOC||Source:||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.||Document URI:||http://hdl.handle.net/1942/3339||ISI #:||A1997WP18503319||Type:||Journal Contribution|
|Appears in Collections:||Research publications|
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