Identification of sustainable carbon capture and utilization (CCU) pathways using state-task network representation

Application of nonlinear surrogate models on optimization of carbon capture and utilization network

Computer-aided identification and evaluation of technologies for sustainable carbon capture and utilization using a superstructure approach

Uncovering attitudes towards carbon capture storage and utilization technologies in Germany: Insights into affective-cognitive evaluations of benefits and risks

Acceptance profiles for a carbon-derived foam mattress. Exploring and segmenting consumer perceptions of a carbon capture and utilization product

An original and up-to-date discussion of a promising sustainable energy technology In Sustainable Polygeneration based on Carbon Capture and Utilisation, Falah Alobaid and Bernd Epple present a comprehensive and authoritative investigation of state-of-the-art technologies for converting solid fuels, including both fossil fuels and biomass, into energy services, chemicals, and other valuable products. The book covers advanced combustion, gasification, pyrolysis, hydrothermal processes, and steam reforming, integrating these conversion methods with Carbon Capture and Utilisation (CCU) technologies. It also examines the numerical simulation of polygeneration plants using one-dimensional process models, both steady-state and dynamic, as well as three-dimensional CFD models, highlighting their applications in system design, optimisation, and performance evaluation. Organised into four major thematic areas, the book begins with an in-depth treatment of conversion processes for solid fuels, followed by a detailed exploration of carbon capture and utilisation technologies for emission sources. It then presents sustainable polygeneration plants before concluding with a thorough examination of the mathematical and computational models used for polygeneration plant simulations. The text is enriched with experimental results from one of the world’s largest research pilot plants, providing real-world performance data that validates key technologies and demonstrates the practical integration of conversion, capture, and utilisation processes. Ideal for chemical engineers, process engineers, industrial chemists, and environmental engineers, Sustainable Polygeneration based on Carbon Capture and Utilisation combines theoretical foundations with practical insights, making it an essential resource for both researchers and practitioners.

Separating the debate on CO2 utilisation from carbon capture and storage

As the global community grapples with the urgent need to mitigate the impacts of climate change, Carbon Capture and Utilization (CCU) has emerged as a promising and multifaceted strategy to address carbon emissions. This review paper provides a comprehensive examination of the current state of CCU technologies, focusing on both the emerging applications and the challenges inherent in their implementation. The first section offers an overview of diverse carbon capture methods, ranging from pre-combustion to direct air capture, highlighting key advancements in technologies such as chemical absorption, membrane separation, and adsorption. Subsequently, the paper delves into the various pathways of carbon utilization, exploring applications in the production of fuels, carbon-based materials, and chemical synthesis. Notable breakthroughs in power-to-gas technologies, utilization in construction materials, and industrial applications are discussed in detail. The core of the review is dedicated to unveiling the emerging applications of CCU, with a specific emphasis on its role in agriculture and soil enhancement, integration with renewable energy systems, and collaboration with other industries. The potential economic and environmental benefits of these applications are explored to underscore the transformative impact of CCU on sustainable development. However, the journey towards widespread CCU adoption is not without challenges. This paper identifies and analyzes technical hurdles related to efficiency, scalability, and cost-effectiveness. Additionally, it examines the regulatory, policy, and societal challenges that may hinder the seamless integration of CCU technologies. Case studies of successful CCU projects provide practical insights, emphasizing lessons learned and best practices. The paper concludes by outlining future prospects and opportunities in the field of CCU, emphasizing the need for continued research, development, and international collaboration. It calls for a concerted effort to overcome challenges and harness the full potential of CCU in contributing to global carbon reduction goals. This comprehensive review aims to serve as a valuable resource for researchers, policymakers, and industry professionals involved in climate change mitigation, providing a nuanced understanding of the current landscape, opportunities, and challenges associated with Carbon Capture and Utilization. Keywords: Carbon Capture and Utilization (CCU), Applications, Challenges.

Carbon Capture and Storage (CCS) and Carbon Capture and Utilization (CCU) are considered essential solutions to reduce greenhouse gas (GHG) emissions worldwide. A crucial difference between the two is that CCS is already a mature technology, while CCU is still in the R&D phase. Hence, firms are confronted with a dilemma, where they have to choose between either the mature CCS, the emerging CCU, or the installation of both in a Carbon Capture Utilization and Storage (CCUS) system. In this study, we analyze different strategies that the firm can pursue and determine the optimal investment timing. In doing so, we take into account both technological uncertainty, i.e. the unknown time-to-market of CCU, and market uncertainty, i.e. the CO2 price. Three different CCUS value chains in the cement industry are analyzed. We find that the anticipated arrival of profitable CCU technologies in the future does not delay investments in CCS in the current period. Investments in CCS and CCU can be accelerated by reducing the volatility of the CO2 price, or by increasing the growth rate of the CO2 price. Finally, we find that a higher fraction of CO2 emissions that can be used in CCU, results in sooner adoption of CCS today.

Carbon dioxide (CO2) capture and utilization technologies: New developments toward net-zero emissions and climate-change mitigation

This paper presents a first comprehensive comparison of environmental impacts of carbon capture and storage (CCS) and carbon capture and utilisation (CCU) technologies. Life cycle assessment studies found in the literature have been reviewed for these purposes. In total, 27 studies have been found of which 11 focus on CCS and 16 on CCU. The CCS studies suggest that the global warming potential (GWP) from power plants can be reduced by 63–82%, with the greatest reductions achieved by oxy-fuel combustion in pulverised coal and integrated gasification combined cycle (IGCC) plants and the lowest by post-combustion capture in combined cycle gas turbine (CCGT) plants. However, other environmental impacts such as acidification and human toxicity are higher with than without CCS. For CCU, the GWP varies widely depending on the utilisation option. Mineral carbonation can reduce the GWP by 4–48% compared to no CCU. Utilising CO2 for production of chemicals, specifically, dimethylcarbonate (DMC) reduces the GWP by 4.3 times and ozone layer depletion by 13 times compared to the conventional DMC process. Enhanced oil recovery has the GWP 2.3 times lower compared to discharging CO2 to the atmosphere but acidification is three times higher. Capturing CO2 by microalgae to produce biodiesel has 2.5 times higher GWP than fossil diesel with other environmental impacts also significantly higher. On average, the GWP of CCS is significantly lower than of the CCU options. However, its other environmental impacts are higher compared to CCU except for DMC production which is the worst CCU option overall.

Same or different? Insights on public perception and acceptance of carbon capture and storage or utilization in Germany

Carbon capture and utilization (CCU) technologies aim to use carbon dioxide (CO2), either captured from industrial point sources or from the atmosphere, instead of fossil carbon in the production of a variety of valuable goods. CCU has the potential to contribute to emission reductions and to lower raw material consumption as well to foster transitional processes toward a circular economy. To enable societies to take full advantage of this potential, policy support is needed in overcoming current barriers and fostering CCU implementation as a feasible option for the industry. Based on a literature and online investigation, this paper identifies and compares the current policy mixes for CCU in the US and the EU, focusing on policy strategies and existing and proposed policy instruments. The analysis shows that US strategy documents, with very few exceptions, do not mention CCU specifically in the context of the country's 2030 or 2050 climate targets. In the EU, in contrast, the future role of CCU is clearly linked to achieving climate-neutrality by 2050. The main policy instruments to incentivize the implementation of CCU in the US are tax credits (45Q). Moreover, funding exists for research and development efforts. In the EU, many reform proposals are currently underway that could benefit CCU technologies. At present, policy support, for instance through the Renewable Energy Directive, mainly aims at renewable fuels of non-biological origin while in other areas CCU support remains at odds with principles such as “energy efficiency first”. The EU does, however, have a broad range of funding opportunities available for research, development and demonstration projects. The paper uses the cross-regional comparison of policy mixes to formulate policy recommendations to improve policy mixes for CCU. A clearer strategic commitment to CCU, its incorporation into green public procurement guidelines, incorporating CCU across different funding schemes for sustainable energy transition, and ambitious new targets for renewable electricity and green hydrogen, for instance, could help develop the policy mixes further to provide a supportive framework for CCU.

Carbon capture and utilisation (CCU) is considered an important CO2 mitigation strategy to support and compliment carbon capture and storage (CCS) objectives for the abatement and sequestration of CO2. It represents various pathways that utilise CO2 as a feedstock in process systems or otherwise for the generation of value-added commodities. The CO2 used can be captured from different sources including power plants and industrial activities via several existing carbon capture and separation technologies that ensure a pure and safe CO2 supply. CCU pathways are mainly divided into five wide-ranging categories: CO2 conversion to chemicals and fuels, mineral carbonation, enhanced oil recovery, biological conversion, and direct CO2 utilisation. This study reviews the main CCU pathways and highlights their intra-sectoral and inter-sectoral opportunities within the energy water and food (EWF) systems, which is an important resource management concept. It also discusses the global status of CCU operational projects, research and development efforts directed toward CCU deployment, and important decision-making directions when integrating CCU with the EWF nexus. This review highlights that CCU pathways provide several cross-sectoral opportunities within the EWF sectors, by allaying resource competition between sectors and proposing co/tri-integrated solutions for securing EWF resources. Future efforts in this regard should be directed towards studying the EWF nexus within CCU routes in a comprehensive, quantitative, and holistic approach to identify and measure all trade-offs and synergies within EWF sectors, and to optimise CCU supply chains.

Role of carbon capture and utilization (CCU) for decarbonization of industrial sector: A case study of Japan

Carbon Capture and Storage (CCS) and Carbon Capture and Utilization (CCU) play an important role in climate mitigation and decarbonization strategies. Many researchers have studied Carbon Capture, Utilization, and Storage (CCUS), but few have identified the barriers and drivers from a bibliometric perspective. This research aims to fill this gap by providing bibliometric analysis, while also identifying research trends and topic evolution in this field. The analysis revealed that China and the USA are leading the research activities in this topic. Five conceptual themes were identified from the literature through Multiple Correspondence Analysis (MCA) keyword clustering: life cycle assessment and sequestration, technological advances in CO 2 capture and separations, techno-economic analysis, CO 2 conversion technologies, and metallic organic framework. Furthermore, an analysis of the co-occurrence network map using the keyword plus bibliometric data suggests that the barriers and drivers of CCS and CCU are not universally shared across the CCUS field. The recognition of these differences may support further research in the development of supportive policies and could provide input into the creation of new business models. The primary contribution of this research is a comprehensive bibliometric analysis detailing the current state, thematic areas, and the barriers and drivers associated with CCS and CCU, while also outlining future research directions. • Reveals distinct thematic barriers and drivers for CCS and CCU using bibliometric analysis. • Identifies five conceptual research themes in CCUS literature from 2010 to 2025. • Maps conceptual clusters and trends using Biblioshiny and VOSviewer software tools. • Reveals China and the USA as global leaders in CCUS research and collaboration. • Findings provide a basis for future CCUS policy research and technology development.