Article · Journal of Chemical Technology & Biotechnology · January 31, 2024
Assessing various CO2 utilization technologies: a brief comparative review
Zafar Turakulov, Azizbek Kamolov, Adham Norkobilov, Miroslav Variny, Guillermo Díaz‐Sainz, Lucía Gómez‐Coma
Abstract
Abstract Carbon dioxide (CO2) utilization technologies have emerged as a promising approach to address the direct and indirect consequences of climate change and the need for sustainable resource management. Those innovative technologies aim to capture and utilize CO2 by converting it into valuable products or directly using it as a chemical feedstock in various industries, thus, avoiding their release into the atmosphere. In this study, different CO2 utilization pathways including CO2 to chemicals and fuels, CO2 to building materials, CO2 to enhanced oil recovery (EOR), and CO2 to bio‐products are discussed in terms of their status – economic, environmental and technology readiness level performances. Moreover, various CO2 utilization pathways are comparatively analyzed considering their advantages and drawbacks, CO2 uptake potentials, and overall climate benefits. According to the comparison results, photocatalytic and electrochemical reduction of CO2 along with the bio‐fixation of CO2 are gaining more attention in the recent research and investigations, from the energy intensity and environmental point of view, whereas EOR remains dominant in terms of the scalability, maturity and economic benefits. However, limitations of EOR related to the capacity, life cycle and different geolocations, as well as the complexities of other mature approaches make room for emerging technologies to be more energy‐effective and environmentally friendly. Overall, most of the promising CO2 utilization techniques are either technologically immature or limited in scale to deploy globally. One of the main barriers to reusing CO2 is associated with the high cost of CO2‐based production and the low value of the CO2 market. © 2024 Society of Chemical Industry (SCI).
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