Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/2532
Title: Reductive and non-reductive methylation of high-sulphur coals studied by atmospheric pressure-temperature programmed reduction technique
Authors: KOZLOWSKI, Mieczyslaw
Wachowska, H
YPERMAN, Jan 
Issue Date: 2003
Publisher: ELSEVIER SCI LTD
Source: FUEL, 82(9). p. 1041-1047
Abstract: Two kinds of high sulphur content coals Mequinenza and Illinois No. 6 have been subjected to reductive and non-reductive alkylation. The reductive alkylation was performed in the potassium/liquid ammonia system, while the non-reductive one was performed according to the procedure proposed by Liotta. In both processes the alkylating reagent was iodomethane. The products were subjected to elemental analysis and studied by IR spectroscopy and Atmospheric Pressure-Temperature Programmed Reduction (AP-TPR) technique. It has been established that much more information can be elicited from AP-TPR results obtained for the samples after modification by reductive or non-reductive alkylation than for non-modified coals. The Mequinenza coal has been found to contain aryl thiols and almost no alkyl thiols, whereas the Illinois No. 6 coal has been shown to contain alkyl thiols while practically no presence of aryl thiols has been detected. (C) 2003 Elsevier Science Ltd. All rights reserved.
Notes: Adam Mickiewicz Univ Poznan, Fac Chem, PL-60780 Poznan, Poland. Limburgs Univ Ctr, IMO, Lab Appl Chem, B-3590 Diepenbeek, Belgium.Kozlowski, M, Adam Mickiewicz Univ Poznan, Fac Chem, Grunwaldzka 6, PL-60780 Poznan, Poland.
Keywords: coal; reductive alkylation; non-reductive alkylation; sulphur; atmospheric pressure-temperature programmed reduction
Document URI: http://hdl.handle.net/1942/2532
ISSN: 0016-2361
e-ISSN: 1873-7153
DOI: 10.1016/S0016-2361(03)00018-8
ISI #: 000182464700003
Category: A1
Type: Journal Contribution
Validations: ecoom 2004
Appears in Collections:Research publications

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