ESTONIAN ACADEMY
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eesti teaduste
akadeemia kirjastus
PUBLISHED
SINCE 1984
 
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Oil Shale
ISSN 1736-7492 (Electronic)
ISSN 0208-189X (Print)
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THE EFFECTS OF ACID TREATMENT ON THE PYROLYSIS OF GÖYNÜK OIL SHALE (TURKEY) BY THERMOGRAVIMETRIC ANALYSIS; pp. 51–62

Full article in PDF format | doi: 10.3176/oil.2012.1.05

Authors
M. SERT, L. BALLİCE, M. YÜKSEL, M. SAĞLAM

Abstract

The present study investigates pyrolysis kinetics of raw and pretreated Göynük oil shales by thermogravimetric analysis (TGA). Samples were treated with HCl, HNO3 and HF solutions and characterized by TGA data. All experiments were carried out at a heating rate of 5 K min–1, in the temperature range of 25–1000 °C under the nitrogen atmosphere. Coats-Redfern method was used to determine the kinetic parameters of the activation energy using the data from thermogravimetric analysis. From the kinetic analysis it was concluded that Göynük oil shale samples have two reaction regions and the activation energies of the first region are lower.


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