This article is a review of the scientific literature published in 2019 on topics relating to bioenergy from biofuel residues and waste. This literature review is divided into the following sections: Feedstocks, Biodiesel, Bioethanol, Hydrogen, Biohydrogen, Biofuel Residues, Microalgae, and Lignocelluloses.
Keywords: algae; biodiesel; biofuel; biofuel residue; biohydrogen; biorefinery; ethanol; feedstocks; hydrogen; lignocelluloses.
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