Detail publikačního výsledku
The non-isothermal kinetics analysis of the thermal decomposition of kaolinite by Effluent Gas Analysis technique
PTÁČEK, P.; ŠOUKAL, F.; OPRAVIL, T.; KŘEČKOVÁ, M.; HAVLICA, J.; BRANDŠTETR, J.
Original Title
The non-isothermal kinetics analysis of the thermal decomposition of kaolinite by Effluent Gas Analysis technique
English Title
The non-isothermal kinetics analysis of the thermal decomposition of kaolinite by Effluent Gas Analysis technique
Type
WoS Article
Original Abstract
The thermal decomposition of kaolin with high-content of the medium ordered kaolinite was studied by Effluent Gas Analysis (EGA) under non-isothermal conditions. This technique enables to distinguish two overlaying processes during the thermal decomposition of kaolin: oxidation of organic compounds and dehydroxylation. The kinetic of non-isothermal dehydroxylation of kaolinite is controlled by the rate of the third-order reaction. For the given reaction mechanism, the overall activation energy (EA) and pre-exponential (frequency) factor (A) values are 242 kJ mol-1 and 2.21 . 10E8 s-1, respectively.
English abstract
The thermal decomposition of kaolin with high-content of the medium ordered kaolinite was studied by Effluent Gas Analysis (EGA) under non-isothermal conditions. This technique enables to distinguish two overlaying processes during the thermal decomposition of kaolin: oxidation of organic compounds and dehydroxylation. The kinetic of non-isothermal dehydroxylation of kaolinite is controlled by the rate of the third-order reaction. For the given reaction mechanism, the overall activation energy (EA) and pre-exponential (frequency) factor (A) values are 242 kJ mol-1 and 2.21 . 10E8 s-1, respectively.
Keywords
Kaolin; Kaolinite; Non-isothermal dehydroxylation; Activation energy; Heterogeneous kinetics; Effluent Gas Analysis
Key words in English
Kaolin; Kaolinite; Non-isothermal dehydroxylation; Activation energy; Heterogeneous kinetics; Effluent Gas Analysis
Authors
PTÁČEK, P.; ŠOUKAL, F.; OPRAVIL, T.; KŘEČKOVÁ, M.; HAVLICA, J.; BRANDŠTETR, J.
RIV year
2011
Released
10.11.2010
Publisher
Elsevier
Location
ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
ISBN
0032-5910
Periodical
POWDER TECHNOLOGY
Volume
203
Number
2
State
Swiss Confederation
Pages from
272
Pages to
276
Pages count
5
Full text in the Digital Library
BibTex
@article{BUT51017,
author="Petr {Ptáček} and František {Šoukal} and Tomáš {Opravil} and Magdaléna {Křečková} and Jaromír {Havlica} and Jiří {Brandštetr}",
title="The non-isothermal kinetics analysis of the thermal decomposition of kaolinite by Effluent Gas Analysis technique",
journal="POWDER TECHNOLOGY",
year="2010",
volume="203",
number="2",
pages="272--276",
issn="0032-5910"
}