Application of TGA-MS technique for oil shale characterization and kinetics

Kök, Mustafa Verşan
Varfolomeev, Mikhail A.
Nurgaliev, Danis K.
Kandasamy, Jayaraman
Thermal characteristics and model free kinetics of four different oil shale samples were studied using simultaneous thermogravimetry-mass spectrometer (TGA-MS) analysis performed at three different heating rates and under air atmosphere. All the reaction regions and corresponding peak temperatures, mass loss, and the residue of oil shale samples were determined. Meanwhile, the main volatile products, primary alcohols, and aromatic compounds as products of oil shale combustion, were determined on the basis of their relative intensities in different temperature intervals. Model free kinetics, particularly the Kissinger-Akahira-Sunose (KAS) and Ozawa-Flynn-Wall (OFW) methods, were used in order to determine the activation energy of the oil shale samples studied. It was observed that the activation energy of oil shale samples varied between 91.8 and 154.1 kJ mol(-1) depending on the type and origin of oil shale and model applied. The kinetic model is validated by comparing the experimental and simulated conversion curves.


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Kök, Mustafa Verşan (2001-12-01)
In this research, thermal characteristics of three Turkish oil shales (Himmetoglu, Beypazari and Hatuldag) were studied by thermal analysis techniques (differential scanning calorimetry, thermogravimetry and pressurised differential scanning calorimetry). Two distinct exothermic peaks were identified in all experiments known as low-temperature oxidation and high-temperature oxidation reaction regions. Kinetic data were analysed by Arrhenius, and Coats and Redfern models and the results are discussed.
Comparative Pyrolysis and Combustion Kinetics of Oil Shales
Kök, Mustafa Verşan (2000-02-01)
In this research, thermal characteristics and kinetic parameters of eight Turkish oil shale samples were determined by thermogravimetry (TG/DTG) at non-isothermal heating conditions both for pyrolysis and combustion processes. A general computer program was developed and the methods are compared with regard to their accuracy and the ease of interpretation of the kinetics of thermal decomposition. Activation energies of the samples were determined by five different methods and the results are discussed.
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Kök, Mustafa Verşan (2012-01-01)
Combustion characteristics of two different coal samples were investigated using power compensating type differential scanning calorimeter (DSC) and thermogravimetry (TG-DTG) at different heating rates (5, 10 and 15 degrees C/min). Differential scanning calorimeter (DSC) and thermogravimetry (TG-DTG) curves revealed two main reaction regions at each heating rate studied. Reaction regions, peak and burn-out temperatures, weight loss and heat of reactions of the samples were determined. Kinetic parameters of ...
Recent developments in the application of thermal analysis techniques in fossil fuels
Kök, Mustafa Verşan (2008-03-01)
In this review, application of thermal analysis techniques (differential scanning calorimetry, thermogravimetry, differential thermal analysis, etc.) for fossil fuel characterization and kinetics are reviewed between 2001 and 2006. The results presented clearly showed that thermal analysis applications are well-established techniques used in fossil fuel research area.
Thermal behavior and kinetics of crude oils at low heating rates by differential scanning calorimeter
Kök, Mustafa Verşan (2012-04-01)
The objective of this research was to investigate thermal behavior and kinetics of different origin crude oils in limestone matrix by differential scanning calorimeter (DSC) at low heating rates. In DSC experiments, three distinct reaction regions were identified in all of the crude oil + limestone mixtures known as low temperature oxidation (LTO), fuel deposition (FD) and high temperature oxidation (HTO) respectively. Kinetic analysis of the crude oil samples was determined by different models known as AST...
Citation Formats
M. V. Kök, M. A. Varfolomeev, D. K. Nurgaliev, and J. Kandasamy, “Application of TGA-MS technique for oil shale characterization and kinetics,” JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, pp. 0–0, 2022, Accessed: 00, 2022. [Online]. Available: