Biodiesel from Citrullus colocynthis Oil: Sulfonic-Ionic Liquid-Catalyzed Esterification of a Two-Step Process

Figure 12

GC chromatogram of the produced CCOME. The peaks 1–7 showed n-hexane (solvent), methyl myristate, methyl palmitate, methyl heptadecanoate (internal standard), methyl stearate, methyl oleate, and methyl linoleate, respectively.