CO₂-removal News

Peer-reviewed Publications

Bunya et al. (2024): Optimization and Tradeoff Analysis for Multiple Configurations of Bio-Energy with Carbon Capture and Storage Systems in Brazilian Sugarcane Ethanol Sector

Bruno Bunya, César A. R. Sotomonte, Alisson Aparecido Vitoriano Julio, João Luiz Junho Pereira, Túlio Augusto Zucareli de Souza, Matheus Brendon Francisco, Christian J. R. Coronado IN: Entropy, 26(8), 698, https://doi.org/10.3390/e26080698

This study seeks to carry out a thermodynamic optimization and analysis of a BECCS technology for a typical Brazilian cogeneration plant. To maximize generated net electrical energy (MWe) and carbon dioxide CO2 capture (Mt/year), this study evaluated six cogeneration systems integrated with a chemical absorption process using MEA. A key performance indicator (gCO2/kWh) was also evaluated.

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Peer-reviewed Publications

Nature – Wollnik et al. (2024): Dynamics of bio-based carbon dioxide removal in Germany

Ronja Wollnik, Malgorzata Borchers, Ruben Seibert, Susanne Abel, Pierre Herrmann, Peter Elsasser, Jakob Hildebrandt, Kathleen Meisel, Pia Hofmann, Kai Radtke, Marco Selig, Stanislav Kazmin, Nora Szarka, Daniela Thrän IN: Scientific Reports, 14, https://doi.org/10.1038/s41598-024-71017-x

Bio-based carbon dioxide removal encompasses a range of (1) natural sink enhancement concepts in agriculture and on organic soils including peatlands, and in forestry, (2) bio-based building materials, and (3) bioenergy production with CO2 capture and storage (BECCS). A common database on these concepts is crucial for their consideration in strategies and implementation. In this study, the authors analyse standardised factsheets on these concepts. 

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Peer-reviewed Publications

Nature – Cheng et al. (2024): Land use and cover change accelerated China’s land carbon sinks limits soil carbon

Yue Cheng, Peng Luo, Hao Yang, Mingwang Li, Ming Ni, Honglin Li, Yu Huang, Wenwen Xie, Lihuan Wang IN: https://doi.org/10.1038/s41612-024-00751-w

The authors explore a previously overlooked role of land use and cover change (LUCC) in driving the land carbon cycle by using a three-level meta-analysis and Land Use Harmonization data to drive an ecosystem model.

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Peer-reviewed Publications

Al Yafiee et al. (2024): Direct air capture (DAC) vs. Direct ocean capture (DOC)–A perspective on scale-up demonstrations and environmental relevance to sustain decarbonization

Omnya Al Yafiee, Fatima Mumta, Priyanka Kumari, Georgios N. Karanikolos, Alessandro Decarlis, Ludovic F. Dumée IN: Chemical Engineering Journal, 497, https://doi.org/10.1016/j.cej.2024.154421

This paper critically discusses the status, challenges, and scalability of direct air capture (DAC) and direct ocean capture (DOC) at pilot or industrial scale. Key challenges include capital and operational costs, energy demands, and integrating green energy sources to reduce environmental impact. The review emphasizes on techno-economical benchmarking analyses to evaluate feasibility for large-scale deployment and their effectiveness in mitigating CO2 emissions and acting as tools towards delocalized CO2 production.

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Peer-reviewed Publications

Salah et al. (2024): A Case Study of a Nature-Based Approach to Carbon Sequestration in Aquatic Habitats as a Strategy to Mitigate Climate Change along the Egyptian Northern Lakes

Aya Emam Salah, Elham Mahmoud Ali, Tarek Ahmed Temraz, IN: Advances in Environmental and Life Sciences, 2024, https://doi.org/10.21608/aels.2024.283493.1051

This study has shifted focus to natural methods for curbing emissions and protecting the environment, leading to the adoption of nature-based solutions, including carbon sequestration in water, sediment, and aquatic flora. The study aimes to evaluate and compare carbon sequestration rates in water and sediment samples from four northern Egyptian lakes, examining the carbon sequestration capacities of these aquatic habitats in planted and unplanted areas.

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Peer-reviewed Publications

Sori et al. (2024): Comprehensive review of experimental studies, numerical modeling, leakage risk assessment, monitoring, and control in geological storage of carbon dioxide: Implications for effective CO2 deployment strategies

Abobakr Sori, Jafarsadegh Moghaddas, Hasan Abedpour, IN: Sci, 2024, https://doi.org/10.1002/ghg.2295

This review article aims to provide a comprehensive overview of the current state of research and development in the field of geological carbon dioxide (CO2) sequestration. The authors systematically examined a wide range of recent literature, focusing on advancements in numerical simulations, experimental studies, risk assessments, and monitoring techniques related to CO2 sequestration. Literature was selected based on relevance, recency, and contribution to the understanding of key challenges and solutions in CO2 storage, with sources spanning peer-reviewed journals, conference proceedings, and significant technical reports.

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Peer-reviewed Publications

Liu et al. (2024): Investigating CO2 sequestration properties of biochar shotcrete

Guoming Liu, Lu Liu, Huamou Liu, Huiying Zheng IN: Construction and Building Materials, 443, https://doi.org/10.1016/j.conbuildmat.2024.137779 

This study investigated the effect of different biochar content on shotcrete under various curing conditions (carbonation, normal and low temperature). Flowability, compressive strength, splitting strength and microstructure of sprayed biochar shotcrete were conducted. Combined carbonation depth, thermogravimetric, and X-ray diffraction (XRD) were used to analyze the carbon sequestration of the biochar sprayed concrete materials from both macro and microscopic perspectives. In addition, the effect of low temperature on the performance of biochar shotcrete was considered.

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Peer-reviewed Publications

Barman et al. (2024): Synergizing sustainability: a critical review on harnessing agroforestry for biomass, carbon sequestration, and water-food-energy nexus

Anamika Barman, Suman Dutta, Anurag Bera, Priyanka Saha, Jyotirmay Roy, Malini Roy Choudhury, Mahadev Bera, Sumanta Das, IN: Energy, Ecology, Environment, 2024, https://doi.org/10.1007/s40974-024-00336-6

This systematic literature review provides a comprehensive overview of research spanning 24 years, elucidating the role of agroforestry in mitigating climate change impacts, enhancing biomass provision, carbon sequestration, and optimizing the water-food-energy nexus. Various forms of agroforestry systems exhibit differing capacities to supply biomass and sequester carbon.

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Peer-reviewed Publications

Nature – Wijaya et al. (2024): Basin-scale study of CO2 storage in stacked sequence of geological formations

Nur Wijaya, David Morgan, Derek Vikara, Timothy Grant, Guoxiang Liu IN: scientific reports, 14, https://doi.org/10.1038/s41598-024-66272-x

Commercial scale decarbonization through carbon capture and storage may likely involve many CO2 storage projects located in close proximity. The close proximity could raise concerns over caprock integrity associated with reservoir pressure buildup and interference among adjacent projects. Commercial-scale injection will also require large prospective CO2 storage resource and high injectivity in the targeted storage formations. To accommodate the need for both large resource and high injectivity, project operators could consider injecting CO2 into a stacked sequence of formations. This analysis investigates the benefits of injecting CO2 into a vertically stacked sequence of saline formations, over injecting the same amount of CO2 into a single saline formation, in addressing these challenges.

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Peer-reviewed Publications

Nature – Dale et al. (2024): Seafloor alkalinity enhancement as a carbon dioxide removal strategy in the Baltic Sea

Andrew W. Dale, Sonja Geilert, Isabel Diercks, Michael Fuhr, Mirjam Perner, Florian Scholz, Klaus Wallmann IN: Communications Earth & Environment, 5, https://doi.org/10.1038/s43247-024-01569-3

Ocean alkalinity enhancement by the artificial addition of carbonate minerals to the seafloor has been proposed as a method to sequester atmospheric CO2 and store it in the ocean as dissolved bicarbonate. Here, a reaction-transport model is used to scrutinize the efficacy of calcite addition and dissolution at a well-studied site in the southwestern Baltic Sea – a brackish coastal water body in northern Europe.

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