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100
Oil
Gas
80 Char
Conversion (%) 60
40
20
0
240 270 300 330 360 390 420 450
Temperature (°C)
Fig. 11.16 Temperature optimization of thermal degradation.
Oil
100
Gas
Char
80
Conversion (%) 60
40
20
0
240 260 280 300 320 340 360 380 400 420 440
Temperature (°C)
Fig. 11.17 Temperature optimization of catalytic degradation.
of waste LDPE for maximum liquid product, LDPE sample was catalytically
converted at different temperatures. From the figure, it is observed that about
74.2% liquid product was collected at a temperature 350°C with CaCO 3
catalyst. Further, increase in temperature leads to increased conversion of
LDPE into volatile product or higher fraction of gases.
11.7.1.3 Effect of Catalyst Fraction
The catalytic conversion is significantly affected by the presence of cata-
lyst during conversion process. Fig. 11.18 shows the investigation results of
catalyst on the catalytic pyrolysis of LDPE at 0.2, 1, and 2 catalyst/LDPE
