Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Oil shale kinetics by differential methods
Date
2007-06-01
Author
Kök, Mustafa Verşan
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
238
views
0
downloads
Cite This
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
Suggestions
OpenMETU
Core
Oil shale: Pyrolysis, combustion, and environment: A review
Kök, Mustafa Verşan (2002-02-01)
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.
Light crude oil combustion in the presence of limestone matrix
Kök, Mustafa Verşan; Keskin, C; Madarasz, J; Bagci, S (Springer Science and Business Media LLC, 2004-01-01)
In this study the combustion characteristics of crude oils (Karakus and Beykan) in the presence of a limestone matrix were determined using the thermogravimetry (TG/DTG). Experiments were performed at a heating rate of 10degreesC min(-1), whereas the air flow rate was kept constant at 10 L h(-1) in the temperature range of 20-900degreesC. In combustion with air, three distinct reaction regions were identified in all crude oil/limestone mixtures studied known as low temperature oxidation (LTO), fuel depositi...
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.
Influence of reservoir rock composition on the combustion kinetics of crude oil
Kök, Mustafa Verşan (Springer Science and Business Media LLC, 2009-08-01)
In this research, the effect of different lithology (limestone and sandstone) on the combustion of light crude oils was investigated using thermal analysis techniques. Three distinct reaction regions were identified in all of the crude oil+limestone and sandstone mixtures, known as low temperature oxidation (LTO), fuel deposition (FD) and high temperature oxidation (HTO), respectively. Kinetic analysis of the crude oil+limestone and sandstone mixtures was performed using Coats and Redfern method and the res...
Non-isothermal kinetic analysis and feasibilty study of medium grade crude oil field
Kök, Mustafa Verşan (Springer Science and Business Media LLC, 2008-03-01)
In this research, non-isothermal kinetics and feasibility study of medium grade crude oil is studied in the presence of a limestone matrix. Experiments were performed at a heating rate of 10 degrees C min(-1), whereas the air flow rate was kept constant at 50 mL min(-1) in the temperature range of 20 to 600 degrees C (DSC) and 20 to 900 degrees C (TG). In combustion with air, three distinct reaction regions were identified in all crude oil/limestone mixtures, known as low temperature oxidation (LTO), fuel d...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
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.