Document Server@UHasselt >
Research publications >
Please use this identifier to cite or link to this item:
|Title: ||Study of silica immobilized sulphur model compound as calibrant for AP-TPR study of oxidized coal samples|
|Authors: ||VAN AELST, Joke|
VAN POUCKE, Lucien
|Issue Date: ||2000|
|Publisher: ||AMER CHEMICAL SOC|
|Citation: ||Energy & fuels, 14(5). p. 1002-1008|
|Abstract: ||Desulfurization of coal prior to combustion has developed the need for an accurate technique to determine which sulfur groups are present before and after chemical treatment. Athmospheric pressure-temperature programmed reduction (AP-TPR) is a technique that can determine the sulfur distribution by using model compounds as calibrants. This study deals with a series of model compounds for oxidized sulfur functionalities. It is proven by AR-TPR and AP-TPR-MS that the sulfur groups of these model compounds are decomposed and that decomposition products (SO/SO2) are only partially reduced. Diaryl sulfoxides and sulfones are found to be more stable than their aryl alkyl-substituted counterparts, and sulfones are more stable than the structurally related sulfoxides. Sulfates are generally found to be the most stable oxidized forms of sulfur.|
|Type: ||Journal Contribution|
|Appears in Collections: ||Research publications|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.