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Oil shale kinetics by differential methods
Date
2007-06-01
Author
Kök, Mustafa Verşan
Metadata
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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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(alpha) 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.
Subject Keywords
Physical and Theoretical Chemistry
,
Condensed Matter Physics
,
Activation energy
,
Combustion
,
Kinetics
,
Oil shale
,
Pyrolysis
,
Thermal analysis
URI
https://hdl.handle.net/11511/40004
Journal
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
DOI
https://doi.org/10.1007/s10973-006-8027-y
Collections
Department of Petroleum and Natural Gas Engineering, Article
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In this study, instances where combustion techniques have been applied for oil shale characterization, kinetics, and effect on environment are reviewed. The major themes of the review were the composition, geochemistry, advanced spectroscopic and pyrolysis techniques, thermal analysis (differential scanning calorimetry, thermogravimetry, differential thermal analysis), conversion including static and fluid bed retorting, and environmental considerations.
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Kök, Mustafa Verşan; Keskin, C; Madarasz, J; Bagci, S (Springer Science and Business Media LLC, 2004-01-01)
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M. V. Kök, “Oil shale kinetics by differential methods,”
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
, pp. 657–661, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40004.