Publication detail

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

Type

journal article in Web of Science

Language

English

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.

Keywords

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

2010

Released

10. 11. 2010

Publisher

Elsevier

Location

ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND

ISBN

0032-5910

Periodical

POWDER TECHNOLOGY

Year of study

203

Number

State

Swiss Confederation

Pages from

272

Pages to

276

Pages count

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"
}