Research Article

Kinetics of Transesterification of Croton megalocarpus Oil Using Alkaline Earth Catalysts with Conventional and Microwave Heating

Table 3

R2 and NRMSD (in brackets) for various catalysts and reaction orders for WB and MW heating at 70oC (numbers in bold refer to largest R2 and lowest NRMSD).

Case (m, n)NaOH (WB)NaOH (MW)BaO (WB)BaO (MW)SrO (WB)SrO (MW)Nano CaO (WB)Nano CaO (MW)

1 (0,0)0.3728 (0.1429)0.7618 (0.0982)0.5041 (0.1211)0.7923 (0.0892)0.5921 (0.1041)0.7714 (0.0944)0.5434 (0.1127)0.8256 (0.0796)

2 (1,0)0.6763 (0.0892)0.8533 (0.0683)0.6346 (0.0981)0.8851 (0.0617)0.7589 (0.0741)0.8618 (0.0688)0.6906 (0.0862)0.8843 (0.0618)

3 (0,1)0.4175 (0.1354)0.7803 (0.0932)0.5299 (0.1167)0.8120 (0.0837)0.6270 (0.0981)0.7905 (0.0892)0.5727 (0.1075)0.8490 (0.0752)

4 (1,1)0.7175 (0.0818)0.8483 (0.0785)0.6528 (0.0947)0.9017 (0.0562)0.7900 (0.0681)0.8803 (0.0630)0.7196 (0.0598)0.8969 (0.0577)

5 (2,0)0.7946 (0.0609)0.6973 (0.0865)0.7062 (0.0888)0.9517 (0.0469)0.8811 (0.0494)0.9402 (0.0419)0.8261 (0.0595)0.9277 (0.0465)

6 (0,2)0.4650 (0.1274)0.7969 (0.0884)0.5550 (0.1123)0.8315 (0.0781)0.6620 (0.0919)0.8098 (0.0839)0.6024 (0.1023)0.8557 (0.0708)

7 (2,1)0.7555 (0.0694)0.6736 (0.8915)0.9629 (0.0828)0.9580 (0.0338)0.8940 (0.0452)0.9517 (0.0371)0.8465 (0.0551)0.9444 (0.0437)

8 (1,2)0.7286 (0.0791)0.8412 (0.0695)0.7778 (0.0921)0.9161 (0.0511)0.8179 0.0625)0.8977 (0.0574)0.7463 (0.0757)0.9093 (0.0534)

9 (3,0)0.6925 (0.0692)0.4220 (0.1108)0.7067 (0.0892)0.9514 (0.0394)0.8520 (0.0523)0.8775 (0.0438)0.8144 (0.0987)0.9439 (0.0490)

10 (0,3)0.5129 (0.1192)0.8109 (0.0842)0.5790 (0.1082)0.9505 (0.0726)0.6966 (0.0857)0.8291 (0.0785)0.6320 (0.0970)0.8700 (0.0664)