Table 2.

Experimental plan and mass loss of the spent catalysts.

Temperature (°C)	Time (min)	Mass loss (%)
450	120	54.56
550	90	56.99
550	150	57.24
650	60	59.48
650	120	64.64
650	120	64.30
650	120	64.84
650	180	66.67
750	90	74.00
750	150	74.60
850	120	74.60