Recent progress on innovative and potential technologies for glycerol transformation into fuel additives: A critical review

Glycerol emerges as a significant worth chemical that can be converted into high value products. In the prospect of biorefinery industries and great demand towards renewable sources, glycerol has proved to have tremendous potential to be transformed, thus supersede conventional petroleum derived fuel additive. Various types of oxygenated biocomponents and rigorous studies of glycerol transformation into fuel additives are presented in this review paper. Particular focus is given to etherification, acetylation and acetalation processes with specific behaviors in the respective reaction system.