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
Thermal characteristics and kinetics of crude oils and SARA fractions
Date
2013-10-10
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
192
views
0
downloads
Cite This
In this study, two Turkish crude oils from southeastern part of Turkey and their saturate, aromatic and resin fractions were analyzed by thermogravimetric analysis (TGA). The experiments were performed at three different heating rates (5, 10, 15 degrees C/min) under air atmosphere. Two different reaction regions were observed from thermogravimetry (TG), differential thermogravimetry (DTG) curves due to the oxidative degradation of crude oil components. From TGA curves, it was detected that the heavier fraction, resins, lost considerable amount of its initial mass in the second reaction region. While saturates, the lightest part of the crude oil fractions, lost very small amounts of its initial mass in the second reaction region. The kinetic analysis of the crude oils and their fractions were also performed using different kinetic methods. It was deduced that the resins gave the highest activation energy and Arrhenius constant for both reaction regions.
Subject Keywords
Physical and Theoretical Chemistry
,
Instrumentation
,
Condensed Matter Physics
URI
https://hdl.handle.net/11511/41519
Journal
THERMOCHIMICA ACTA
DOI
https://doi.org/10.1016/j.tca.2013.07.014
Collections
Department of Petroleum and Natural Gas Engineering, Article
Suggestions
OpenMETU
Core
Combustion characteristics and kinetic analysis of Turkish crude oils and their SARA fractions by DSC
Kök, Mustafa Verşan (Springer Science and Business Media LLC, 2013-10-01)
In this study, two Turkish crude oils from southeastern part of Turkey and their saturate, aromatic, resin fractions were analyzed by differential scanning calorimetry (DSC). The experiments were performed at three different heating rates (5, 10, 15 A degrees C min(-1)) under air atmosphere. Two different reaction regions were observed from DSC curves due to the oxidative degradation of crude oil components. In the first reaction region, it was deduced that the free moisture, volatile hydrocarbons were evap...
Kinetic analysis of central anatolia oil shale by combustion cell experiments
Iscan, A. G.; Kök, Mustafa Verşan; Bagci, A. S. (Springer Science and Business Media LLC, 2007-06-01)
In this study, four oil-shale samples (Nigde-Ulukisla) excavated from Central Anatolia Turkey were analyzed where this region is believed to have a high potential of oil in its shale rich outcrops. The samples (similar to 40 g) were combusted at 50 psi gas injection pressure, at an air injection rate of 1.5 L min(-1) in a combustion-reaction cell. All the experiments were conducted up to 600 degrees C. The percentages of oxygen consumption and carbon monoxide and carbon dioxide production were obtained inst...
Novel thermally stable organo-montmorillonites from phosphonium and imidazolium surfactants
Abdallah, Wissam; Yılmazer, Ülkü (Elsevier BV, 2011-10-20)
To circumvent the deleterious early decomposition effects of thermally unstable alkyl ammonium-treated montmorillonites when processed with high-melting-point polymers, high thermally stable salts are used as intercalant agents for sodium montmorillonite rich bentonites of Turkish origin, by an ion exchange reaction to produce organo-montmorillonites with enhanced thermal stability. The bentonite clay was purified by sedimentation, resulting in higher cation exchange capacity and thermal stability in compar...
Supercritical CO2 intercalation of layered silicates
Serhatkulu, Gulay; Dilek Hacıhabiboğlu, Çerağ; Gulari, Esin (Elsevier BV, 2006-12-01)
In this study, we use supercritical CO2 as the processing medium for intercalating the structure of natural clay, Cloisite Na+, and depositing CO2-philic sugar acetate, P-D-galactose pentaacetate, between the layers of the clay. Based on our measurements of the phase behavior of the P-D-galactose pentaacetate-CO2 system, we select two processing conditions: a dense gas solution (DGS) at 40 degrees C and 11.7 MPa with 2.4 wt.% sugar acetate in CO2 and a gas-expanded liquid (GEL) at 40 degrees C and 7.9 MPa w...
Oil shale kinetics by differential methods
Kök, Mustafa Verşan (Springer Science and Business Media LLC, 2007-06-01)
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 fro...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
M. V. Kök, “Thermal characteristics and kinetics of crude oils and SARA fractions,”
THERMOCHIMICA ACTA
, pp. 66–70, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41519.