Biogas in the Circular Bioeconomy: Processes, Integration and Applications

Dear Colleagues,

Biogas production and upgrading represent one of the most promising pathways toward achieving a sustainable energy future. As the global community seeks to reduce reliance on fossil fuels and mitigate greenhouse gas emissions, biogas systems offer unique opportunities to simultaneously address waste management, renewable energy generation and circular bioeconomy development. Advances in this field are being realized across multiple scales including laboratory investigations of microbial pathways and reactor performance as well as pilot and full-scale plants integrating biogas into regional or national energy systems. Equally important are the ongoing developments in upgrading technologies, process intensification, system integration and digitalization tools that enhance process monitoring, control and optimization.

This Special Issue on “Biogas in the Circular Bioeconomy: Processes, Integration and Applications” aims to gather contributions that showcase cutting-edge research and practical advancements in biogas systems, with emphasis on the operation, optimization and sustainability of production and upgrading processes. Both experimental and modeling studies are welcome, particularly those that contribute to improving efficiency, reducing costs and enhancing environmental performance. Contributions highlighting techno-economic analyses, lifecycle assessment and the integration of biogas with other renewable energy and resource recovery systems are strongly encouraged.

Topics include, but are not limited to:

• Development and optimization of anaerobic digestion and co-digestion processes；
• Novel biogas upgrading and intensification technologies (e.g., additives, alteration of process configurations and membranes)；
• Microbial ecology and metabolic engineering for enhanced biogas yield；
• Integration of biogas with renewable energy systems and bio-refineries；
• Digitalization, modeling, simulation and machine learning in biogas processes；
• Techno-economic, environmental and life cycle assessment of biogas systems；
• Policy, market and deployment perspectives supporting large-scale biogas utilization.

Dr. Elsayed Elbeshbishy
Dr. Ahmed Elsayed
Guest Editors

Manuscript Submission Information

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