Reaction of tricalcium aluminate with hydrogen chloride under simulated bag filter conditions / Kouki Kasuya in Industrial & engineering chemistry research, Vol. 51 N° 19 (Mai 2012)  

Reaction of tricalcium aluminate with hydrogen chloride under simulated bag filter conditions [texte imprimé] / Kouki Kasuya, Auteur ; Naomi Onodera, Auteur ; Atsushi Iizuka, Auteur . - 2012 . - pp. 6987-6990.
Industrial chemistry
Langues : Anglais (eng)
in Industrial & engineering chemistry research > Vol. 51 N° 19 (Mai 2012) . - pp. 6987-6990

Mots-clés :	Bag filter
Résumé :	The influence of metals present in fly ash on the dechlorination reaction that occurs at bag filters installed in municipal waste incinerators and melting furnaces has not been investigated previously. Tricalcium aluminate (3CaO·Al2O3, C3A) is considered to be a precursor of complex oxychlorides, and its reaction with HCl was investigated in a gas flow reactor under simulated bag filter conditions (473 K, 1000 ppm HCl, 30 vol% H2O, 5 vol% O2). The molar chlorination ratio of C3A leveled off at about 1 after 24 h. The chlorination reaction rate of C3A was similar to that of calcium hydroxide (Ca(OH)2). C3A chlorination products had a mainly amorphous structure. Elemental mapping images of the surface of chlorinated C3A indicated the likely generation of complex oxychlorides of calcium and aluminum. It is possible that complex oxychlorides are produced at bag filters from complex oxides generated in high-temperature incinerators.
ISSN :	0888-5885
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