ESTONIAN ACADEMY
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eesti teaduste
akadeemia kirjastus
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SINCE 1984
 
Oil Shale cover
Oil Shale
ISSN 1736-7492 (Electronic)
ISSN 0208-189X (Print)
Impact Factor (2020): 0.934

AN EXPERIMENTAL STUDY ON DEVOLATILIZATION OF OIL SHALE PARTICLES UNDER FLUIDIZED-BED OXIDIZING CONDITIONS; pp. 164–178

Full article in PDF format | doi: 10.3176/oil.2010.2.06

Authors
WANG QING, WANG XIAOLEI, SUN BAIZHONG, QIN HONG, LIU HONGPENG, LI SHAOHUA

Abstract
The devolatilization characteristics of Wangqing oil shale were studied in a laboratory-scale fluidized-bed unit at 600–904 °C. The characteristics of furnace temperature variation, preheating time and burnout of particles were studied in detail after oil shale being injected. The effect of batch mass, bed temperature, fluidization velocity, and moisture content on volatile combus­tion was also investigated. The experimental results show that the combus­tion of volatiles was mostly influenced by the bed temperature and reaction mechanism. The combustion time was in accordance with empirical model. A new modified model for combustion time of volatiles related to temperature, particle size, and reaction mechanisms was proposed. The results calculated with this model are in agreement with experimental data, and it can be used to predict combustion time of volatiles for the high-temperature region.
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