Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/1963
Title: Reductive pyrolysis study of sulfur compounds in different Tabas coal samples (Iran)
Authors: Jorjani, E
YPERMAN, Jan 
CARLEER, Robert 
Rezai, B
Issue Date: 2006
Publisher: ELSEVIER SCI LTD
Source: FUEL, 85(1). p. 114-120
Abstract: A comparative study of the effects of mineral and pyrite removal on the determination of organic sulfur functionalities in representative, as well as its low and high sulfur analogue samples of Tabas coal (Cl seam) were studied by atmospheric pressure-temperature-programmed reduction (AP-TPR) method. The AP-TPR investigation showed the presence of di-aryl sulfides, aryl-alkyl sulfides, simple and complex thiophenic structure in all representative, low and high sulfur samples. There is no indication of the presence of pure di-alkyl sulfides, disulfides or thiols, nor oxidised sulfur forms in the samples. Only minor differences in sulfur functionalities were detected qualitatively between the three analogue samples. Quantitatively differences in sulfur forms were found to be more pronounced. The presence of CH fragments on gases emitted during AP-TPR investigation of demineralised and demineralised pyrite-free samples, shows evidence for the fort-nation of shorter CH chains and of polyaromatic compounds, and lower molecular weight material in the demineralization and pyritic sulfur removal stages. (c) 2005 Elsevier Ltd. All rights reserved.
Notes: Hasselt Univ, Lab Appl Chem, CMK, B-3590 Diepenbeek, Belgium. Azad Univ, Min Engn Dept, Tehran, Iran. Amirkabir Univ Technol, Min Met & Petr Engn Dept, Tehran, Iran.Yperman, J, Hasselt Univ, Lab Appl Chem, CMK, Agoralaan Gebouw D, B-3590 Diepenbeek, Belgium.jan.yperman@uhasselt.be
Keywords: coal; sulfur; mass spectrometry; reductive pyrolysis
Document URI: http://hdl.handle.net/1942/1963
ISSN: 0016-2361
e-ISSN: 1873-7153
DOI: 10.1016/j.fuel.2005.05.007
ISI #: 000235223800013
Category: A1
Type: Journal Contribution
Validations: ecoom 2007
Appears in Collections:Research publications

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