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KINETICS OF ISOTHERMAL AND NON-ISOTHERMAL PYROLYSIS OF OIL SHALE; pp. 415–424
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The kinetics of decomposition of Huadian oil shale was studied by non-isoÂthermal and isothermal methods. The non-isothermal weight loss was recorded at different heating rates (2, 5, 10, 15 and 20Â K/min) up to 873Â K. Two non-isothermal methods were applied for determination of kinetic paraÂmeters: the direct Arrhenius plot method and integral method. The isoÂthermal weight loss studies were carried out for one hour at different temÂperatures 623, 648, 673, 698 and 723Â K. Activation energy and frequency factor were calculated. Â Â Â Â The kinetic parameters evaluated from isothermal and non-isothermal kinetic data were compared with each other. As for the two non-isothermal analysis models, the integral method shows lower deviation and hence proÂvides a better fit of the data. The average results of non-isothermal experiÂments were similar to kinetic paraÂmeters determined by isothermal analysis.
Estonian Academy Publishers
Title: KINETICS OF ISOTHERMAL AND NON-ISOTHERMAL PYROLYSIS OF OIL SHALE; pp. 415–424
Description:
The kinetics of decomposition of Huadian oil shale was studied by non-isoÂthermal and isothermal methods.
The non-isothermal weight loss was recorded at different heating rates (2, 5, 10, 15 and 20Â K/min) up to 873Â K.
Two non-isothermal methods were applied for determination of kinetic paraÂmeters: the direct Arrhenius plot method and integral method.
The isoÂthermal weight loss studies were carried out for one hour at different temÂperatures 623, 648, 673, 698 and 723Â K.
Activation energy and frequency factor were calculated.
    The kinetic parameters evaluated from isothermal and non-isothermal kinetic data were compared with each other.
As for the two non-isothermal analysis models, the integral method shows lower deviation and hence proÂvides a better fit of the data.
The average results of non-isothermal experiÂments were similar to kinetic paraÂmeters determined by isothermal analysis.
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