Thermal Pyrolysis of Used Tyres to Produce Liquid Fuel: Process Optimization and How It Compares to Microwave Pyrolysis

Table 5

Summary for model fit-sequential model sum of squares for thermal pyrolysis.

Source	Sequential value	Lack of fit value	Adjusted	Predicted
Linear	<0.0001	<0.0001	0.8404	0.8283
2FI	0.6758	<0.0001	0.8345	0.8338
Quadratic	<0.0001	0.794	1	1	Suggested
Cubic	0.7215	0.573	1	0.9999	Aliased
Sequential model sum of squares [type I]
Source	Sum of squares	df	Mean square	value	value
Mean vs. total	51592.48	1	51592.48
Linear vs. mean	628.84	3	209.61	78.25	<0.0001
2FI vs. linear	4.28	3	1.43	0.513	0.6758
Quadratic vs. 2FI	105.53	3	35.18	57067.7	<0.0001	Suggested
Cubic vs. quadratic	0.0014	4	0.0003	0.5203	0.7215	Aliased
Residual	0.0202	31	0.0007
Total	52331.15	45	1162.91