Monat: Oktober 2024

Peer-reviewed Publications

Wang et al. (2024): Modeling and planning optimization of carbon capture load based on direct air capture

Qian Wang, Caiyi Du, Xueguang Zhang IN: Energy, 310, https://doi.org/10.1016/j.energy.2024.133285

The paper delves into an in-depth analysis of the operational traits of direct air capture and formulates strategic optimization methods. Firstly, this paper analyzes the operational characteristics of direct air capture, examines the operational mechanisms and energy flow interactions of absorption-based and adsorption-based direct air capture, and reviews the current status of engineering demonstrations of direct air capture technology, highlighting the current technological bottlenecks in project applications. Subsequently, the paper proposes a planning and optimization model for direct air capture loads, incorporating subsidy mechanisms, and develops a dual-layer optimization model aimed at minimizing investment and operational costs. Finally, the effectiveness of the modeling and planning methods proposed in this paper is validated through numerical analysis.

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Peer-reviewed Publications

Chen & Yang (2024): Assessing the net carbon removal potential by a combination of direct air capture and recycled concrete aggregates carbonation

Liyuan Chen, Aidong Yang IN: Resources, Conservation and Recycling, 212, https://doi.org/10.1016/j.resconrec.2024.107940

This study assessed the CO2 removal potential of combining direct air capture with carbonation of recycled concrete aggregates (RCAs). An industrial-scale RCA carbonation process model quantified key parameters‘ impacts on carbonation duration and energy consumption. Furthermore, a lifecycle analysis evaluated scenarios of two cases: (i) using pure CO2 with transportation between DAC and carbonation, and (ii) onsite production of low-purity CO2.

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Peer-reviewed Publications

Prats-Salvado et al. (2024): A techno-economic and environmental evaluation of the integration of direct air capture with hydrogen derivatives production

Enric Prats-Salvado, Nathalie Monnerie, Christian Sattler IN: International Journal of Hydrogen Energy, 2024, https://doi.org/10.1016/j.ijhydene.2024.10.026

The synergies between synthetic fuel production and DAC are largely unexplored. In this work, four integration strategies between DAC and solar redox cycles are proposed. Each of them is modeled with Aspen Plus and HFLCAL and compared with a techno-economic and a cradle-to-gate life cycle assessment.

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Peer-reviewed Publications

Nature – Buss et al. (2024): Applying minerals to soil to draw down atmospheric carbon dioxide through synergistic organic and inorganic pathways

Wolfram Buss, Heath Hasemer, Noah W. Sokol, Eelco J. Rohling, Justin Borevitz IN: Communications Earth & Environment, 5,  https://doi.org/10.1038/s43247-024-01771-3

Here the authors consider three soil- and mineral-based methods for carbon dioxide removal: (1) grinding and spreading of calcium- and magnesium-rich silicate rocks for enhanced rock weathering and subsequent inorganic carbon formation, (2) mineral doping of biomass prior to conversion into biochar for enhanced biochar carbon yield and stability, and (3) strategic application of minerals to soil to increase soil organic carbon accrual and stability.

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Peer-reviewed Publications

Oh (2024): Contestation in social acceptance of direct air capture (DAC) technologies in Korea by differing framings over governance principles

Chaewoon Oh IN: Journal of Open Innovation: Technology, Market, and Complexity, 10, 4, https://doi.org/10.1016/j.joitmc.2024.100403

This paper explores why setting a separate target for DAC technologies was contested and not accepted at the policy-drafting stage. From the theoretical ground of social acceptance of new and innovative technologies, this paper utilizes four governance principles as social norms with which stakeholders understand and interpret DAC technologies, and analyzes differing framings on DAC technologies.

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Peer-reviewed Publications

Goldenberg et al. (2024): Early life stages of fish under ocean alkalinity enhancement in coastal plankton communities

Silvan Urs Goldenberg, Ulf Riebesell, Daniel Brüggemann, Gregor Börner, Michael Sswat, Arild Folkvord, Maria Couret, Synne Spjelkavik, Nicolás Sánchez, Cornelia Jaspers, Marta Moyano IN: Biogeosciences, https://doi.org/10.5194/bg-21-4521-2024

With a mesocosm experiment on natural plankton communities, the authors studied early life stages of fish under alkalinity (+600 µmol kg−1) and silicate (+75 µmol L−1) addition. Larvae and young juveniles of temperate coastal species, including Atlantic herring (Clupea harengus) and cod (Gadus morhua), were exposed to direct physiological and indirect food-web-mediated effects of OAE for 49 d. Neither in the shorter nor in the longer term did we find an impairment of fish growth and survival.

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Peer-reviewed Publications

Batjes et al. (2024): Towards a modular, multi-ecosystem monitoring, reporting and verification (MRV) framework for soil organic carbon stock change assessment

Niels H. Batjes, Eric Ceschia, Gerard B.M. Heuvelink, Julien Demenois, Guerric le Maire, Rémi Cardinael, Cristina Arias-Navarro, Fenny van Egmond IN: Carbon Management, 15, https://doi.org/10.1080/17583004.2024.2410812

Consistent and accurate monitoring of changes in soil organic carbon stocks and net greenhouse gas emissions, reporting, and their verification is key to facilitate investment in sustainable land use practices that maintain or increase soil organic carbon stocks, as well as to incorporate soil organic carbon sequestration in national greenhouse gas emission reduction targets. Building up on an initial review of monitoring, reporting and verification (MRV) schemes with a focus on croplands, grasslands, and forestlands the authors develop a framework for a modular, scalable MRV system. They then provide an inventory and classification of selected MRV methodologies and subsequently “score” them against a list of key characteristics.

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Peer-reviewed Publications

Lenk et al. (2024): Biochar carbon removal from residues in Germany—assessment from environmental and economic perspectives

Clara Lenk, Elmar Zozmann, Hannes Bluhm, Bernd Hirschl IN: Environmental Research Letters, DOI 10.1088/1748-9326/ad83e3

This study focuses on biochar carbon removal (BCR) from forest residues, straw and sewage sludge and assesses its contribution to negative emissions under current techno-economic framework conditions. Using life cycle assessment and annuity method, as well as complementary stakeholder engagement formats, the study provides a comprehensive analysis of BCR pathways in Germany based on an empirical, up-to-date data basis.

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Peer-reviewed Publications

Jones et al. (2024): When and where can coastal wetland restoration increase carbon sequestration as a natural climate solution?

Scott F. Jones, Ariane Arias-Ortiz, Dennis Baldocchi, Meagan Eagle, Daniel A. Friess, Catrina Gore, Greg Noe, Stefanie Nolte, Patty Oikawa, Adina Paytan, Jacqueline L. Raw, Brian J. Roberts, Kerrylee Rogers, Charles Schutte, Camille L. Stagg, Karen M. Thorne, Eric J. Ward, Lisamarie Windham-Myers, Erik S. Yando IN: Coastal Futures, 2024, doi:10.1017/cft.2024.14

There remains uncertainty on when and where coastal wetland restoration can most effectively act as natural climate solutions (NCS). Here, the authors synthesize current understanding to illustrate the requirements for coastal wetland restoration to benefit climate, and discuss potential paths forward that address key uncertainties impeding implementation.

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Peer-reviewed Publications

Zhang et al. (2024): Species differences in carbon drawdown during marine phytoplankton growth

Yafeng Zhang, Siru Wang, Bin Gou, Qiabin Wang, Minchi Hou, Xutao Wang, Kedong Yin IN: Marine Pollution Bulletin, 208, https://doi.org/10.1016/j.marpolbul.2024.117021

The effects of Ocean alkalinity enhancement (OAE) on marine phytoplankton communities would depend on species differences in tolerance to high pH, which results from phytoplankton photosynthetic drawdown of dissolved inorganic carbon (DIC). In this study, 20 marine phytoplankton species were grown in sealed batch cultures and DIC, pH and chlorophyll a (Chl-a) were measured at the peaks of biomass.

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