ESTONIAN ACADEMY
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eesti teaduste
akadeemia kirjastus
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Oil Shale cover
Oil Shale
ISSN 1736-7492 (Electronic)
ISSN 0208-189X (Print)
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PYROLYSIS KINETICS OF OIL SHALE FROM NORTHERN SONGLIAO BASIN IN CHINA; pp. 5–16

Full article in PDF format | doi: 10.3176/oil.2010.1.02

Authors
XUE HUA-QING, LI SHU-YUAN, WANG HONG-YAN, ZHENG DE-WEN, FANG CHAO-HE

Abstract
Pyrolysis experiments on northern Songliao basin oil shale were carried out by Rock-Eval analyzer at five different heating rates of 10, 15, 20, 25 and 30 °C/min. Pyrolysis characteristics of oil shale were investigated at different heating rates. Kinetic parameters of oil shale pyrolysis were determined by using Friedman procedure and global first-order kinetics. From Friedman procedure, it is concluded that most reactions occur with the activation energy of 165–545 kJ/mol. The linear relationship between activation energy and logarithm of frequency factor was obtained. The values of activation energy and frequency factor, deduced from the first-order equation case, are used to predict pyrolysis time. It is found that pyrolysis time is correlating with pyrolysis temperature.
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