Currently, Dr Baena-Moreno is a post-doctoral researcher at Chalmers University of Technology (Division of Energy Technology). He has strong experience in synergizing carbon capture and utilization with biogas upgrading and waste valorization, as can be corroborated by his high impact contributions in the field. His research goals are to promote the implementation of CO2 utilization in a circular economy processes, synergizing both waste recovery and CO2 added-value products manufacturing. He has co-authored over 45 peer-reviewed publications, 5 book chapters, and holds a patent aimed to handle waste management for potential recovery of added-value products. He serves as review editor for the journal Frontiers in Chemistry and is also a regular reviewer for many Elsevier journals (e.g. Applied Energy, Journal of Cleaner Production, or Waste Management). Dr. González-Arias holds a PhD in Computational and Production Engineering from the University of León (Spain). At the moment, she is a post-doctoral researcher in the Division of Energy Technology of the Space, Earth and Environment Department at Chalmers University of Technology (Sweden). Her research interests include the biomass and waste valorization through thermochemical treatments, involving circularity and potential new uses for CO2 in this field. She has evidenced a strong experience in combining thermochemical treatments for circular economy processes. She has co-authored over 21 peer-review publications and 1 book chapter. She also serves as a review editor in the journal Frontiers in Chemistry. Dr Reina received his PhD in Chemistry from the University of Seville (Spain) in 2014 and then he moved to Imperial College London UK and then to the University of Surrey where he has developed his career as Catalysis & Reaction Engineering Group Leader in the Department of Chemical & Process Engineering. He is a visiting professor at HUST University (China, 2019), academic member of the DICP-Surrey Joint Centre for Future Materials and a Low-Carbon Energy Fellow at the University of Seville. His research interests include the development of advanced heterogeneous catalysts for energy and sustainability. His work is focused on clean hydrogen production, carbon dioxide utilization and biomass valorization. Tomas serves as associate editor in several international journal such as Frontiers in Chemistry, Catalysts and Helyion. He has co-authored over 140 peer-review publications, 5 book chapters and has licensed 5 industrial patents and he is the editor of 2 textbooks (Wiley and Royal Society). Dr Pastor-Perez is an Assistant Professor at the Inorganic Chemistry Department at the University of Seville (Spain). Currently, she is also working as a Visiting Senior Research Fellow in Department of Chemical and Process Engineering at University of Surrey (UK). Dr Pastor-Perez received his PhD in Material Science from the University of Alicante (Spain) in 2016. For her thesis work she received the extraordinary award of the Spanish Royal Society of Chemistry. Her research interests include the development (synthesis and characterization) of advanced heterogeneous catalysts, mainly supported metal catalysts and carbon-based materials for the production of clean energy and sustainability. Nowadays, her efforts are focused on biomass valorisation, clean hydrogen production and chemical CO2 recycling. Laura has co-authored over 60 research paper in low-carbon technologies.

• PART I: Strategies for Implementing CO2 Capture and Utilization in Circular Economy Processes 1. Production of added value minerals from salts, hydroxides, and waste via CO2 precipitation 2. CO2 utilization for circular heavy carbon industry 3. Microbial electrolysis cells for CO2 utilization and electrochemical CO2 reduction from alternative CO2 sources 4. Catalytic processes for fuels production from CO2-rich streams 5. Calcium looping for CO2 capture and thermochemical energy storage 6. Development of adsorbents for CO2 capture from waste materials 7. Economics of processes involving CO2 in circular economy 8. Modeling strategies for CO2 capture and utilization in circular economy processes PART II: Case Studies in CO2 Capture and Utilization in Circular Economy Processes 9. Profitability analysis of biomethane and calcium carbonate co-production from biogas and FGD Gypsum 10. CO2 utilization for circular steel production 11. Microbial electrosynthesis for CO2-rich waste streams upgrading 12. Methanation of unconventional flue gases 13. Biogas dry reforming for syngas production from CO2 14. Reverse water-gas shift of unconventional flue gases 15. Sustainable Na2CO3 production from NaCl waste and CO2 sources using membrane technology 16. MgCO3 production from MgCl2 waste and CO2: a process design and economic approach