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Loss on ignition and carbon content in pulverized fuel ashes (PFA): two crucial parameters for quality control
Author(s) -
Payá J,
Monzó J,
Borrachero M V,
Amahjour F,
PerisMora E
Publication year - 2002
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.590
Subject(s) - thermogravimetric analysis , carbon fibers , ignition system , differential thermal analysis , calcium hydroxide , calcium carbonate , materials science , waste management , chemical engineering , composite material , engineering , composite number , aerospace engineering , physics , optics , diffraction
Abstract Loss on ignition (LOI) is one of the selected chemical parameters for characterizing the quality of pulverized fuel ashes (PFA). However, this parameter does not represent the unburned carbon in ashes because of the presence of several other compounds which also decompose on heating. In order to evaluate the carbon content in PFA, several thermal analysis methods have been proposed. Thermogravimetric experiments using active/inert atmospheres, high resolution thermogravimetric procedures, and single differential thermal analysis experiments are proposed as new tools for evaluating the presence of unburned carbon and other materials that are also present in PFA, such as calcium carbonate and calcium hydroxide. © 2002 Society of Chemical Industry