Effect of the mineral matrix in the reactions of shales. Part 2. Oxidation reactions of Turkish Goynuk and US Western reference oil shales

Karabakan, A. and Yürüm, Yuda (2000) Effect of the mineral matrix in the reactions of shales. Part 2. Oxidation reactions of Turkish Goynuk and US Western reference oil shales. Fuel, 79 (7). pp. 785-792. ISSN 0016-2361

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Abstract

The effect of the mineral matrix of Turkish Goynuk and US Green River oil shales and air diffusion on the conversion of organic material in oxidation reactions was investigated in the present study. The material washed with HCl from the original oil shales, mainly carbonates of calcium and magnesium, had a mild catalytical effect and the material washed with HF, silicate minerals, had an inhibition effect during oxidation reactions of organic material. The overall reaction orders from the kinetic analysis were found to be pseudo-first-order. The magnitude of the activation energies of oxidation reactions at equal heating rates changed as E-a (HCl washed shale) > E-a (original shale) > E-a (HCl + HF washed shale). The rate of reaction depends on the rate of transport of the gas into the zone of reaction by diffusion. It was observed that the diffusion of oxygen into the organic matrix was the major resistance controlling the rate of oxidation reactions.
Item Type: Article
Uncontrolled Keywords: oil shale; pyrolysis; kerogen
Subjects: T Technology > TP Chemical technology > TP0155-156 Chemical engineering
Divisions: Faculty of Engineering and Natural Sciences > Basic Sciences > Chemistry
Faculty of Engineering and Natural Sciences > Academic programs > Materials Science & Eng.
Faculty of Engineering and Natural Sciences
Depositing User: Yuda Yürüm
Date Deposited: 26 Aug 2010 15:44
Last Modified: 25 Jul 2019 12:30
URI: https://research.sabanciuniv.edu/id/eprint/14285

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