This research was aimed to investigate the combustion and kinetics of oil shale samples (Mengen and Himmetoğlu) by differential
scanning calorimetry (DSC). Experiments were performed in air atmosphere up to 600�C at five different heating rates. The
DSC curves clearly demonstrate distinct reaction regions in the oil shale samples studied. Reaction intervals, peak and burn-out
temperatures of the oil shale samples are also determined. Arrhenius kinetic method was used to analyze the DSC data and it
was observed that the activation energies of the samples are varied in the range of 22.4–127.3 kJ mol−1 depending on the oil shale type and heating rate.
In this review, application of thermal analysis techniques (differential scanning calorimetry, thermogravimetry, differential
thermal analysis, etc.) for fossil fuel characterization and kinetics are reviewed between 2001 and 2006. The results presented
clearly showed that thermal analysis applications are well-established techniques used in fossil fuel research area.
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°C min−1, whereas the air flow rate was kept constant at 50 mL min−1 in the temperature range of 20 to 600°C (DSC) and 20 to 900°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 deposition (FD) and high
temperature oxidation (HTO). The activation energy values were in the order of 5–9 kJ mol−1 in LTO region and 189–229 kJ mol−1 in HTO region. It was concluded that the medium grade crude oil field was not feasible for a self-sustained combustion process.
This paper investigates the minimum oil content necessary for self-sustained combustion, which is introduced as a criterion
for the selection of suitable reservoirs for in-situ combustion processes. Differential scanning calorimetry was used to determine
the heat values of oil-limestone mixtures. The minimum temperature required for the total consumption of the fuel was obtained
by thermogravimetry (TG/DTG). The minimum amount of oil necessary to sustain combustion was calculated from these two parameters
and compared with the oil content of the reservoir. Reservoirs with an oil content greater than or equal to this minimum value
were considered feasible. It was seen that the fields examined are generally not suitable for in-situ combustion processes.
Simultaneous thermogravimetry (TG) and differential thermal analysis (DTA) were applied to light crude oil combustion in the
presence and absence of metal oxide. In crude oil-limestone mixture, three main transitional stages are detected. These are
distillation, low-temperature oxidation (HTO) and high temperature oxidation (HTO) regions respectively. In the case of experiments
with Fe(III)-chloride at different amounts, the shape of TG-DTA curve is changed considerably. Kinetic parameters of the samples
are determined using ASTM method. Reduction in activation energy is considered to be an indication of the catalytic activity
of the additive.
Beypazari lignite was investigated by differential scanning calorimetry (DSC), thermogravimetry (TG), high pressure thermogravimetry
(HPTG) and combustion cell experiments. All the experiments were conducted at non-isothermal heating conditions with a heating
rate of 10°C min−1, in the temperature range of 20–700°C. DSC-TG data were analysed using an Arrhenius-type reaction model assuming a first-order
reaction. For the HPTG data the Coats and Redfern equation was used for kinetic analysis. In the combustion cell experiments
the Fassihi and Brigham approach was used in order to calculate kinetic data. Finally a comparison is made between the kinetic
In this research, combustion curves of seventeen lignite samples from the Thrace basin (Turkey) were analysed using thermal
analysis (TG/DTG) techniques. A comparative analysis was performed considering the relationship between peak temperature,
burn-out temperature, moisture content, ash, volatile matter, fixed carbon and calorific values of the samples studied and
the results are discussed.
In this research, non-isothermal combustion and kinetics of Silopi (Turkey) asphaltite samples were investigated by differential
scanning calorimetry (DSC) and thermogravimetry (TG/DTG). A sample size of 10 mg, heating rates of 5, 10, 15 and 20�C min−1 were used in the temperature range of 20–600�C, under air atmosphere. Two reaction regions were observed in DSC curves. The
first region is due to the evaporation of moisture in asphaltite sample whereas, release of volatile matter and burning of
carbon is called the second region.
A general computer program was developed and the results of four different kinetic models (Arrhenius, Coats-Redfern, Ingraham-Marrier
and Horowitz-Metzger) are compared and discussed with regards to their accuracy and the ease of interpretation of the kinetics
of thermal decomposition. In general similar activation energy values were obtained when the kinetic models are compared with
each other. It was also observed that there was no general trend in the activation energy values from the point of heating
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 results