Research Article

Esterification of Oleic Acid for Biodiesel Production Using a Semibatch Atomization Apparatus

Figure 4

Pareto charts with the effects of the operating variables on the conversion of oleic acid in the atomization apparatus. X1, X2, and X3 represent the coded variables corresponding to the oleic acid flow rate, pressure in the atomization nozzle, and reaction temperature, respectively. The confidence interval was 95% (ā€‰<ā€‰0.05).