caa a22 4500 463188411 CHVBK 20180406164900.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10973-006-8027-y doi (NATIONALLICENCE)springer-10.1007/s10973-006-8027-y Oil shale kinetics by differential methods [Elektronische Daten] [M. Kök, A. Iscan] In this research, pyrolysis and combustion behavior of three different oil shale samples from Turkey were characterized using thermal analysis techniques (TG/DTG). In pyrolysis experiments, two different mechanisms causing mass loss were observed as distillation and cracking. In combustion experiments, two distinct exothermic peaks were identified known low and high temperature oxidation. On the other hand, determination of activation energies are required for the estimation of oil extraction conditions from the oil shales. Differential methods are used to determine the activation energies of the samples where various f(α) models are applied from the literature. It was observed that the activation energies of the all oil shale samples are varied between 13.1-215.4 kJ mol−1 in pyrolysis and 13.1-408.4 kJ mol−1 in combustion experiments which are consistent with other kinetic results. Springer Science+Business Media, LLC., 2007 activation energy nationallicence combustion nationallicence kinetics nationallicence oil shale nationallicence pyrolysis nationallicence thermal analysis nationallicence Kök M. Dept. of Petroleum and Natural Gas Engineering, Middle East Technical University, 06531, Ankara, Turkey aut Iscan A. Dept. of Petroleum and Natural Gas Engineering, Middle East Technical University, 06531, Ankara, Turkey aut Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 88/3(2007-06-01), 657-661 1388-6150 88:3<657 2007 88 10973 https://doi.org/10.1007/s10973-006-8027-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-8027-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kök M. Dept. of Petroleum and Natural Gas Engineering, Middle East Technical University, 06531, Ankara, Turkey aut NATIONALLICENCE 700 1- Iscan A. Dept. of Petroleum and Natural Gas Engineering, Middle East Technical University, 06531, Ankara, Turkey aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 88/3(2007-06-01), 657-661 1388-6150 88:3<657 2007 88 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer