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Chemical evaluation and kinetics of Siberian, north regions of Russia and Republic of Tatarstan crude oils

descriptionPublicationkeyboard_double_arrow_right Article , Journal 17 Apr 2016 Russian Federation Publisher:Informa UK LimitedJournal:Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, volume 38, pages 1,031-1,038 (issn: 1556-7036, eissn: 1556-7230,

Authors: Varfolomeev M.; Nagrimanov R.; Samatov A.; Rakipov I.; Nikanshin A.; Vakhin A.; Nurgaliev D.; +1 Authors

doi: 10.1080/15567036.2015.1107866

Chemical evaluation and kinetics of Siberian, north regions of Russia and Republic of Tatarstan crude oils

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Abstract

© 2016 Taylor & Francis Group, LLC.In this research, thermal characteristics and model free kinetics of five different °American Petroleum Institute gravity crude oil samples from different locations were studied using combustion calorimetry and thermogravimetry (TGA) techniques. Higher heating values of crude oils were determined from the combustion calorimetry experiments. It was shown that these values increase with an increase in saturate fraction and °API gravity of studied samples and decrease with an increase in viscosity, aromatics fraction, and resin fraction of crude oils. In thermogravimetry, experiments were performed at 10, 20, and 30°C/min heating rates under an air atmosphere. Thermal characteristics of the samples such as reaction intervals and corresponding peak temperatures, mass loss, and residue of the crude oil samples were also determined. Two different model free kinetic methods, known as Ozawa-Flynn-Wall (OFW) and Kissinger-Akahira-Sunose (KAS), were used in order to determine the activation energy values of the crude oil samples studied.

Country

Russian Federation

Related Organizations

Middle East Technical University
Turkey
Kazan Federal University
Russian Federation
Kazan Federal University
Russian Federation
Middle East Technical University
Turkey

Keywords

660, 330, thermogravimetry, 620, combustion calorimetry, higher heating value, kinetics, Activation energy, in-situ combustion, crude oil

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