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.

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

Cassava, a potential biofuel crop in (the) People’s Republic of China

A two-step process of sequential anaerobic (dark) and photo-heterotrophic fermentation was employed to produce hydrogen from cassava and food waste. In dark fermentation, the average yield of hydrogen was approximately 199 ml H2 g−1 cassava and 220 ml H2 g−1 food waste. In subsequent photo-fermentation, the average yield of hydrogen from the effluent of dark fermentation was approximately 611 ml H2 g−1 cassava and 451 ml H2 g−1 food waste. The total hydrogen yield in the two-step process was estimated as 810 ml H2 g−1 cassava and 671 ml H2 g−1 food waste. Meanwhile, the COD decreased greatly with a removal efficiency of 84.3% in cassava batch and 80.2% in food waste batch. These results demonstrate that cassava and food waste could be ideal substrates for bio-hydrogen production. And a two-step process combining dark fermentation and photo-fermentation was highly improving both bio-hydrogen production and removal of substrates and fatty acids.

Efficient hydrogen gas production from cassava and food waste by a two-step process of dark fermentation and photo-fermentation

Comparative study of bio-ethanol production from mahula (Madhuca latifolia L.) flowers by Saccharomyces cerevisiae cells immobilized in agar agar and Ca-alginate matrices

Zhiyuan Hu

Papers

Multi-objective optimization of cassava-based fuel ethanol used as an alternative automotive fuel in Guangxi, China