Table 1. Experimental Values for the Yield of SFHP from the BBD Experimental Design.

	pressure	temperature	LSR	yield (%)
run	X1 (bar)	X2 (°C)	X3 (mL/g)	experimental values
1	8	100	4	2.54
2	8	140	4	1.61
3	10	120	4	2.15
4	10	100	6	3.66
5	10	120	8	4.64
6	6	120	8	2.24
7	8	120	6	7.06
8	8	140	8	2.73
9	8	120	6	6.44
10	6	100	6	3.58
11	8	120	6	6.84
12	10	140	6	3.33
13	8	100	8	3.46
14	6	140	6	2.66
15	6	120	4	2.76