Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/3306
Title: Effect of calcium and calcium minerals in coal on its thermal analysis
Authors: MAES, Inge
GRYGLEWICZ, Grazyna
YPERMAN, Jan 
FRANCO, Dirk 
MULLENS, Jules 
VAN POUCKE, Lucien 
Issue Date: 1997
Publisher: ELSEVIER SCI LTD
Source: FUEL, 76(2). p. 143-147
Abstract: The effect of the presence of limestone and dolomite in coal, and calcium in lignite, on atmospheric-pressure temperature-programmed reduction (AP-TPR) analysis was studied. AP-TPR experiments were carried out on a bituminous coal with added limestone and dolomite and on a demineralized lignite. The results showed that both calcium minerals captured the gaseous H2S formed under AP-TPR conditions and produced CaS. Consequently the sulfur recovery monitored was too low and the AP-TPR kinetograms were deformed. The study also showed that the influence of dolomite is greater than of limestone. AP-TPR analysis of lignite demineralized and then loaded with calcium ions again showed a clear lowering of sulfur comparable with that of dolomite, but starting at a higher temperature. Copyright (C) 1997 Elsevier Science Ltd.
Notes: WROCLAW TECH UNIV,INST CHEM & TECHNOL PETR & COAL,PL-50344 WROCLAW,POLAND.Maes, II, LIMBURGS UNIV CTR,LAB INORGAN & PHYS CHEM,UNIV CAMPUS,B-3590 DIEPENBEEK,BELGIUM.
Keywords: coal; thermal analysis; calcium compounds
Document URI: http://hdl.handle.net/1942/3306
DOI: 10.1016/S0016-2361(96)00195-0
ISI #: A1997WE18900006
Type: Journal Contribution
Appears in Collections:Research publications

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