Abstract
This paper presents and discusses the thermokinetic parameters of oxidation of heavy oil (Nanyang deposit) and selected model compounds (n-dotriacontane, stearic acid and octadecanol). The method introduced in this work defines the key parameters which affect the quality of the numerical simulation of the energy balance equation of the in situ combustion process simulation experiment and the actual process in the field.
A microcalorimetric technique is combined with a thermokinetic approach developed at the Institute of Chemistry to calculate the thermal energy of reactions such as oxidation of heavy oil or other compounds in in-situ combustion occurring in a porous medium as a function of time at different temperatures and pressures. The kinetic parameters were determined from calorimetric and chemical experiments.
Zusammenfassung
Vorliegende Arbeit beschreibt und diskutiert die thermokinetischen Parameter der Oxidation von Schwerölen (Lagerstätten Nanyang) und ausgesuchter Modellverbindungen (n-Dotiacontan, Stearinsäure und Oktadekanol). Das hier vorgestellte Verfahren definiert die Schlüsselparameter, die die Güte der numerischen Simulation der Energiebilanzgleichung bei den Experimenten zur Simulation von in situ Verbrennungsprozessen und des jeweiligen Prozesses beeinflussen.
In Verbindung mit einer thermokinetischen Näherung wurde an der Academia Sinica ein mikrokalorimetrisches Verfahren entwickelt, mit deren Hilfe man die thermischen Reaktionsenergien wie z.B. für die Oxidation von Schwerölen oder anderen Verbindungen während der in situ Verbrennung in porösen Materialien als eine Funktion der Zeit bei verschiedenen Temperaturen und Drücken berechnen kann. Die kinetischen Parameter werden aus kalorimetrischen und chemischen Experimenten ermittelt.
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Dedicated to Prof. Dr. H. J. Seifert on the occasion of his 60th birthday
This work is also a part of CANADIAN-CHINESE Cooperative Research to be done, (by Zhong L. Zhang) in BEIJING and (by Loren G. Hepler) in EDMONTON
The authors thank Professor Wen Z. Liu and MS. Hong X. Chen of the Research Institute of Petroleum Exploration and Development for their help. This research forms part of the Canadian-Chinese Cooperative Research Programme with L. G. Hepler in Edmonton and Zhong L. Zhang in Beijing.
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Zhang, Z.L., Liu, Y.F., Hu, R.H. et al. Thermokinetic investigation of oxidation of heavy oil and its model compounds. Journal of Thermal Analysis 37, 1545–1556 (1991). https://doi.org/10.1007/BF01913487
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DOI: https://doi.org/10.1007/BF01913487