Biofuel Production and Processing Technology, 3rd Edition

The rapid growth of the global population and the impending depletion of fossil fuels, currently meeting approximately 80% of the world’s power needs, have intensified interest in biofuels derived from renewable biomass. This editorial refers to the Special Issue, “Biofuel Production and Processing Technology, 3rd Edition,” which highlights the transition of fermentation-based technologies from isolated processes into integrated, multifunctional biorefinery platforms. The collection includes nine contributions (eight original articles and one review) covering diverse advancements, including: The valorization of industrial intermediates, strategies to improve anaerobic digestion through co-digestion and heat recovery integration, mechanistic insights into syngas fermentation and the development of multi-product microbial systems, emerging frontier technologies, such as biological hydrogen production in depleted oil and gas reservoirs. Collectively, these studies emphasize that the future of sustainable energy relies on system-level optimization, balancing feedstock flexibility, energy integration, and environmental performance within a circular bioeconomy.