Monat: März 2023

Peer-reviewed Publications

Cao et al. (2023): Simulated carbon cycle and Earth system response to atmospheric CO2 removal

Long Cao, Xiao-Yu Jin, Jiu Jiang IN: Advances in Climate Change Research, https://doi.org/10.1016/j.accre.2023.03.001

Previous studies examined some aspects of Earth system response to different scenarios of CO2 removal, but lacked a systematic analysis of the carbon cycle and climate system response in a consistent modeling framework. The authors expanded previous studies by using an Earth system model to examine the response of land and ocean carbon cycle, as well as a set of climate variables to idealized scenarios of atmospheric CO2 removal with different removal rates. In the scenarios considered, atmospheric CO2 increases at a rate of 1% per year to four times of its preindustrial level, and then decreases at a rate of 0.5%, 1%, and 2% per year to the preindustrial level.

LINK

#
Peer-reviewed Publications

De Marco et al (2023): Techno-economic evaluation of buffered accelerated weathering of limestone as a CO2 capture and storage option

Serena De Marco, Selene Varliero, Stefano Caserini, Giovanni Cappello, Guido Raos, Francesco Campo, Mario Grosso IN:  Mitigation and Adaptation Strategies for Global Change 28, 17, https://doi.org/10.1007/s11027-023-10052-x

As complementary to geological storage, buffered accelerated weathering of limestone (BAWL) has been proposed to produce a buffered ionic solution at seawater pH, derived from the reaction in seawater between a CO2 stream and a micron-sized powder of calcium carbonate (CaCO3), within a long tubular reactor. The addition of calcium hydroxide to buffer the unreacted CO2 before the discharge in seawater is also envisaged. BAWL avoids the risks of CO2 degassing back into the atmosphere and does not induce seawater acidification. This work presents a mass and energy balance and preliminary cost analysis of the technology for different configurations of discharge depth (100, 500, 3,000 m), pipeline length (10, 25, 100 km) and diameter of CaCO3 particles (1, 2, 10 µm) fed in the tubular reactor.

LINK

#
Peer-reviewed Publications

Morimoto et al. (2023): Scenario assessment of introducing carbon utilization and carbon removal technologies considering future technological transition based on renewable energy and direct air capture

Shinichirou Morimoto, Naomi Kitagawa, Farid Bensebaa, Amit Kumar, Sho Kataoka, Satoshi Taniguchi IN: Journal of Cleaner Production 402, 136763, https://doi.org/10.1016/j.jclepro.2023.136763

In this study, four synthetic fuels (fuels produced from captured CO2 and H2), methanol, methane, gasoline, and diesel, were evaluated by life cycle assessment (LCA) and techno-economic assessment (TEA). Five representative countries with different regional characteristics were selected for the study. A bottom-up integrated LCA/TEA approach was used, involving detailed process simulations to avoid uncertainties and to evaluate future technological transitions based on direct air capture (DAC) and renewable energy. The overarching objective of this study was to provide a transparent framework with a common dataset generation methodology to determine the countries that have the advantages/disadvantages in synthetic fuel production and sale, considering the local operational parameters and large-scale introduction of DAC/renewable energy. 

LINK

#
Peer-reviewed Publications

Premadasa et al. (2023): Chemical Feedback in the Self-Assembly and Function of Air–Liquid Interfaces: Insight into the Bottlenecks of CO2 Direct Air Capture

Uvinduni I. Premadasa, Dengpan Dong, Diana Stamberga, Radu Custelcean, Santanu Roy, Ying-Zhong Ma, Vera Bocharova, Vyacheslav S. Bryantsev, Benjamin Doughty IN: ACS Publications, https://doi.org/10.1021/acsami.3c00719

The authors study the interfacial behavior of amino acid (AA) solvents used in DAC through a combination of vibrational sum frequency generation spectroscopy and molecular dynamics simulations.

LINK

#
Peer-reviewed Publications

Bordin et al. (2023): No relationship between biodiversity and forest carbon sink across the subtropical Brazilian Atlantic Forest

Kauane Maiara Bordin, Adriane Esquivel-Muelbert, Joice Klipel, Rayana Caroline Picolotto, Rodrigo Scarton Bergamin, Ana Carolina da Silva, Pedro Higuchi, Elivane Salete Capellesso, Márcia Cristina Mendes Marques, Alexandre F. Souza, Sandra Cristina Müller IN: Perspectives in Ecology and Conservation, https://doi.org/10.1016/j.pecon.2023.02.003

The authors aimed to evaluate the relationship between biodiversity measures (i.e., taxonomic, functional, and phylogenetic diversity) and net carbon change across subtropical BAF, testing whether there is a win–win situation in the conservation of biodiversity and carbon sink capacity across forests of distinct ages. They obtained the net carbon change from 55 permanent plots, from early successional to old-growth forests, by combining the carbon gains and losses across two censuses.

LINK

#
Video

CO2-Speicherung: Mit Technologien das Klima retten?

von „Die Debatte“ auf youtube.com, 1h 36min

Wie sicher sind diese Verfahren für Mensch und Umwelt? Welche Vorbehalte gab und gibt es in der Bevölkerung? Was würden CCS und CCU in Bezug auf die Klimaziele bringen? Wo wären sie in Deutschland anwendbar? Und wie lange würde es dauern, bis wir die Techniken umfangreich nutzen könnten?

mit Prof. Dr. Matthias Kalkuhl, Dr. Elisabeth Dütschke und Prof. Dr. Klaus Wallmann

LINK

#
Peer-reviewed Publications

Wiltshire & Beckage (2023): Integrating climate change into projections of soil carbon sequestration from regenerative agriculture

Serge Wiltshire, Brian Beckage IN: PLOS Climate, https://doi.org/10.1371/journal.pclm.0000130

Computational models can project how changes in land use and management will affect soil organic carbon (SOC) stocks over time, but these models usually assume an unchanging climate. The authors investigate how incorporating climate change projections affects carbon sequestration and SOC stocks. They apply the Rothamsted Carbon model (RothC) to study agricultural land use and management transitions in the U.S. state of Vermont, comparing several regenerative farming strategies, as well as afforestation, against business-as-usual. In 11 relatively-homogeneous Ecoregions within the study area, they run simulations for each land management scenario from 2022–2099, under both projected climate change and the static climate normal from 1991–2021.

LINK

#