Combustion kinetics of crude oils

In this research, the reaction rates related to an in-situ combustion process were investigated and the effect of heating rate and crude oil type on the reaction rates were investigated. A laboratory model was used to run reaction kinetic experiments in unconsolidated limestone packs using three different crude oils. Experiments were performed under the same pressure and airflow rate and at two different heating rates. It was observed that oxidation of crude oil porous media follows a series of reactions. These reactions can be divided into three regions: low temperature oxidation, fuel deposition, and high temperature oxidation. Produced gas analysis was used to determine the activation energy of the samples. Experiments were also performed with thermogravimetry (TG/DTG), and the results are discussed.


Combustion kinetics of oil shales by reaction cell experiments
Kök, Mustafa Verşan; Bagci, S. (Estonian Academy Publishers, 2008-01-01)
In this study, kinetics parameters of combustion reaction of Seyitomer and Beypazari oil shales were determined using Weijdema's model of reaction kinetics. The analysis of reaction kinetics experiments showed two different reaction regions at combustion of Beypazari oil shale sample. Only one reaction region was observed at combustion of Seyitomer oil shale. CO2/CO ratios increased gradually at low and medium temperatures and stabilized at high temperatures, especially after complete combustion. A decrease...
Performance prediction of in situ combustion processes
Kök, Mustafa Verşan (Informa UK Limited, 2001-01-01)
In this research, in situ combustion performance calculations were performed using different algorithms, which were based on oil recovery/volume burned correlative methods. The correlations were based on field and laboratory combustion tube results. A computer method was developed and applied to different heavy crude oil fields. The results showed that an in situ combustion process is applicable in these fields if the volume burned is 30% for field 1 and 40% for field 2.
Oxidation Behavior of Light Crude Oil and Its SARA Fractions Characterized by TG and DSC Techniques: Differences and Connections
Yuan, Chengdong; Varfolomeev, Mikhail A.; Emelianov, Dmitrii A.; Eskin, Aleksey A.; Nagrimanov, Ruslan N.; Kök, Mustafa Verşan; Afanasiev, Igor S.; Fedorchenko, Gennadii D.; Kopylova, Elena V. (American Chemical Society (ACS), 2018-01-01)
This research is intended to reveal the difference and connection of oxidation behavior between crude oil and its SARA fractions. Thermogravimetry (TG) and differential scanning calorimetry (DSC) techniques were used to characterize oxidation behavior. The results showed that the oxidation behavior of individual SARA components exhibited an obvious difference. Saturates showed a weak high-temperature oxidation (HTO) region. Asphaltenes generated more heat in HTO than in the low-temperature oxidation (LTO) r...
Thermal Analysis of Crude oil lignite mixtures by Differential Scanning Calorimetry
Kök, Mustafa Verşan (Elsevier BV, 1994-04-01)
Thermal characterization of lignite, crude oils and their 10 and 20% mixtures were investigated by differential scanning calorimetry (d.s.c.). The calorific value of the lignite increased in mixtures depending on the crude oil type. In pyrolysis runs, temperature ranges where distillation and visbreaking occur were identified for the crude oils studied. The effect of heating rate was also studied, and higher reaction temperatures and higher heat flow rates were observed at d.s.c. peak thermograms with incre...
Combustion performance and kinetics of oil shales
Kök, Mustafa Verşan (Informa UK Limited, 2016-01-01)
In this research, combustion performance and kinetics of two Turkish oil shales were investigated using differential scanning calorimetry (DSC), thermogravimetry (TGA/DTG), and thermogravimetry-mass spectrophotometry (TG-MS) techniques at three different heating rates (10, 30, and 50 degrees C/min). The combustion reaction occurred in two different regions and the corresponding mass loss of oil shales was calculated. Activation energies of oil shale samples are calculated using three different methods and t...
Citation Formats
M. V. Kök, “Combustion kinetics of crude oils,” ENERGY SOURCES, pp. 1–7, 2002, Accessed: 00, 2020. [Online]. Available: