Kadir YURDAKOÇ, Yalçın TONBUL

104114

Thermogravimetric Investigation of the Dehydration Kinetics of KSF, K10 and Turkish Bentonite

The kinetic parameters for the dehydration of bentonite from Turkey, KSF and K10 were determined by using dynamic TG techniques. The Ozawa method is better for the dehydration of the clay samples than the first order equation of Coats and Redfern. The former function calculates consistently higher activation energies than the latter. The mean values of the activation energies in the \a range 0.1-0.7, are 56-66 kJ mol-1 in the Ozawa method.

Anahtar Kelimeler:

Dehydration kinetics, Bentonite, KSF, K10, Ozawa method, Coats-Redfern method

Thermogravimetric Investigation of the Dehydration Kinetics of KSF, K10 and Turkish Bentonite

The kinetic parameters for the dehydration of bentonite from Turkey, KSF and K10 were determined by using dynamic TG techniques. The Ozawa method is better for the dehydration of the clay samples than the first order equation of Coats and Redfern. The former function calculates consistently higher activation energies than the latter. The mean values of the activation energies in the \a range 0.1-0.7, are 56-66 kJ mol-1 in the Ozawa method.

Keywords:

Dehydration kinetics, Bentonite, KSF, K10, Ozawa method, Coats-Redfern method,

Turkish Journal of Chemistry-Cover

ISSN: 1300-0527
Yayın Aralığı: 6
Yayıncı: TÜBİTAK

Arşiv

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