Pyrolysis analysis of crude oils and their fractions

This research was conducted to investigate the pyrolysis behavior of crude oils and their fractions using differential scanning calorimetry and thermogravimetry. Experiments were performed at 10 degrees C/min heating rate under nitrogen atmosphere. An examination of the fractions of crude oils shows that pyrolysis mechanisms depend on the chemical nature of the constituents. A study of the weight loss properties of SARA constituents suggests that each fraction in whole crude oil follows its own reaction (distillation and cracking) pathway independent of the presence of other fractions.


Pyrolysis analysis and kinetics of crude oils
Kök, Mustafa Verşan (1998-01-01)
This research presents the results of an experimental study on the determination of pyrolysis behaviour and kinetics of six crude oils by differential scanning calorimetry (DSC) and thermogravimetry (TG/DTG). Crude oil pyrolysis indicated two main temperature ranges where loss of mass was observed. The first region between ambient to 400 degrees C was distillation. The second region between 400 and 600 degrees C was visbreaking and thermal cracking. Arrhenius-type kinetic model is used to determine the kine...
Heating rate effect on the DSC kinetics of oil shales
Kök, Mustafa Verşan (2007-12-01)
This research was aimed to investigate the combustion and kinetics of oil shale samples (Mengen and Himmetoglu) by differential scanning calorimetry (DSC). Experiments were performed in air atmosphere up to 600 degrees 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 w...
Numerical investigation of coupled heat and mass transfer inside the adsorbent bed of an adsorption cooling unit
Solmus, Ismail; Rees, D. Andrew S.; Yamali, Cemil; Baker, Derek Keıth; KAFTANOĞLU, BİLGİN (2012-05-01)
In this study, the influence of several design parameters on the transient distributions of temperature, pressure and amount adsorbed in the radial direction of a cylindrical adsorbent bed of an adsorption cooling unit using silica gel/water have been investigated numerically. For this purpose, a transient one-dimensional local thermal non-equilibrium model that accounts for both internal and external mass transfer resistances has been developed using the local volume averaging method. For the conditions in...
Kinetic analysis of oxidation behavior of crude oil SARA constituents
Kök, Mustafa Verşan; Pamir, R (1998-05-01)
In this research two Turkish crude oils (medium and heavy) were separated into their saturate, aromatic, resin, and asphaltene (SARA) fractions by column chromatographic techniques, and combustion experiments were carried out on whole crude oils and their fractions by thermogravimentric analysis (TD/DTG) under air atmosphere at a 10 degrees C/min heating rate. Investigation of SARA fractions allows quantitative determination of the temperature intervals at which evaporation, oxidation, and combustion effect...
Thermal behavior and kinetics of crude oils at low heating rates by differential scanning calorimeter
Kök, Mustafa Verşan (2012-04-01)
The objective of this research was to investigate thermal behavior and kinetics of different origin crude oils in limestone matrix by differential scanning calorimeter (DSC) at low heating rates. In DSC experiments, three distinct reaction regions were identified in all of the crude oil + limestone mixtures known as low temperature oxidation (LTO), fuel deposition (FD) and high temperature oxidation (HTO) respectively. Kinetic analysis of the crude oil samples was determined by different models known as AST...
Citation Formats
O. Karacan and M. V. Kök, “Pyrolysis analysis of crude oils and their fractions,” ENERGY & FUELS, pp. 385–391, 1997, Accessed: 00, 2020. [Online]. Available: