β Scribed by J Gersten; V Fainberg; G Hetsroni; Y Shindler
No coin nor oath required. For personal study only.
The thermal decomposition behavior of polypropylene, oil shale and a 1:3 mixture of the two was investigated in a thermogravimetric analyzer (TGA) reaction system in an argon atmosphere, with a view to comparing the process of the mixture with those of the individual components. Experiments were conducted at three heating rates of 5, 10, and 15 K min 21 , in the temperature range of 30Β±9008C. The obtained activation energies were 250 kJ kg 21 for polypropylene, 63 kJ kg 21 for the oil shale organic matter, and 242 kJ kg 21 for the mixture. The results indicate that the characteristics of the process depend on the heating rate, and that polypropylene acts as a catalyst in the degradation of oil shale in the mixture.
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methods
The kinetics of the thermal decomposition of Spanish oil shale was studied using isothermal and non-isothermal thermogravimetric analyses (TGA). The isothermal TG data were studied at different particle sizes (0.250 Β£ 10 23 , 0.505 Β£ 10 23 and 0.925 Β£ 10 23 m) and three temperature plateaux (703, 68
A kinetic study of the pyrolysis of oil shale mixed with LDPE was carried out by thermogravimetric analysis (TGA). Different runs were performed at heating rates between 2 and 50 K min -1 . The results obtained from this comprehensive investigation indicated that they are three main degradation step