Optimization of Liquid Fuel Production from Microwave Pyrolysis of Used Tyres

Table 2

CCD matrix with experimental and predicted yields.

Std	Run	X1 : microwave power (%)	X2 : reaction time (mins)	X3 : particle size (mm^2)	Exp. yield (wt. %)	Predicted yield (wt. %)	Residual
12	1	60	22	60	35	35.02	-0.0158
39	2	50	17.5	25	37	37.02	-0.0244
24	3	60	22	165	30	30.01	-0.0117
5	4	60	13	60	29.2	29.17	0.0312
26	5	30	17.5	112.5	27	27.01	-0.0056
30	6	70	17.5	112.5	28.4	28.39	0.0111
42	7	50	17.5	200	32.1	32.1	-0.0009
15	8	40	13	165	26.6	26.59	0.0103
8	9	40	22	60	35.1	35.11	-0.0075
41	10	50	17.5	200	32.1	32.1	-0.0009
34	11	50	25	112.5	31.2	31.18	0.0204
44	12	50	17.5	112.5	35.4	35.4	0.0007
17	13	60	13	165	28.1	28.06	0.0353
35	14	50	25	112.5	31.2	31.18	0.0204
40	15	50	17.5	200	32.1	32.1	-0.0009
3	16	40	13	60	27.5	27.49	0.0062
29	17	70	17.5	112.5	28.4	28.39	0.0111
7	18	40	22	60	35.1	35.11	-0.0075
4	19	60	13	60	29.1	29.17	-0.0688
16	20	60	13	165	28	28.06	-0.0647
2	21	40	13	60	27.5	27.49	0.0062
27	22	30	17.5	112.5	27	27.01	-0.0056
43	23	50	17.5	112.5	35.4	35.4	0.0007
33	24	50	10	112.5	23.2	23.21	-0.0124
37	25	50	17.5	25	37.1	37.02	0.0756
31	26	50	10	112.5	23.2	23.21	-0.0124
32	27	50	10	112.5	23.2	23.21	-0.0124
20	28	40	22	165	30.3	30.3	-0.0034
10	29	60	22	60	35	35.02	-0.0158
21	30	40	22	165	30.3	30.3	-0.0034
36	31	50	25	112.5	31.2	31.18	0.0204
9	32	40	22	60	35.1	35.11	-0.0075
19	33	40	22	165	30.3	30.3	-0.0034
45	34	50	17.5	112.5	35.4	35.4	0.0007
18	35	60	13	165	28.1	28.06	0.0353
11	36	60	22	60	35	35.02	-0.0158
22	37	60	22	165	30	30.01	-0.0117
6	38	60	13	60	29.2	29.17	0.0312
23	39	60	22	165	30	30.01	-0.0117
38	40	50	17.5	25	37	37.02	-0.0244
25	41	30	17.5	112.5	27	27.01	-0.0056
28	42	70	17.5	112.5	28.4	28.39	0.0111
14	43	40	13	165	26.6	26.59	0.0103
13	44	40	13	165	26.6	26.59	0.0103
1	45	40	13	60	27.5	27.49	0.0062