Vahid Barahimi, Monica Hoand, Eric Croiset IN: Energies 16(17), 6385; https://doi.org/10.3390/en16176385
This review presents a comprehensive survey of recent advancements, challenges, and potential applications of DAC technology, with an emphasis on the recent rapid increase in the number of DAC developers, the majority of them being founded in the past 4 years.
uni-hamburg.de/newsroom/presse, 23. August 2023
„Pflanzenkohle hat im Kampf gegen den Klimawandel großes Potenzial – insbesondere in der Landwirtschaft. Dr. Maria-Elena Vorrath aus dem Fachbereich Erdsystemwissenschaften der Universität Hamburg will ein neues Herstellungsverfahren entwickeln und testen. Dafür erhält sie aus dem „Klaus Tschira Booster Fund“ für die kommenden zwei Jahre 80.000 Euro.“
CDR.fyi is the largest open data platform dedicated to high-permanence CDR monitoring. Their goal is to equip market participants, policymakers, consultants, academic researchers, and capital allocators with up-to-date, accurate data on the CDR industry to guide investment and help scale this important component of the climate equation.
Anwar Hamdan Al Assaf, Odi Fawwaz Alrebei, Laurent M. Le Page, Luai El-Sabek, Bushra Obeidat, Katerina Kaouri, Hamed Abufares, Abdulkarem I. Amhamed IN: Energies 16(14), 5583, https://doi.org/10.3390/en16145583
This paper proposes and tests a photovoltaic-powered DAC (Direct Air Capture) system in a generic residential building located in Qatar. It can efficiently reduce CO2 concentration in a living space, thus providing an incentive to individuals to adopt it. The ventilation performance of the building is determined using Computational Fluid Dynamics (CFD) simulations, undertaken with ANSYS-CFD. The CFD model was validated using microclimate-air quality dataloggers.
on netl.doe.gov, July 11, 2023
„The U.S. Department of Energy (DOE) today announced 16 projects across 14 states are set to receive $23.4 million to provide locally-tailored technical assistance and enhanced stakeholder engagement around carbon management technologies. The projects, housed at both universities and private sector companies, aim to connect carbon management developers with local communities to foster collaboration and education toward the advancement of commercial deployment of carbon capture, transport, and storage technologies across the United States. Large-scale deployment of carbon management technologies will help reduce emissions from hard to decarbonize industrial facilities and power plants, which is crucial to meeting President Biden’s ambitious climate goals.“
Peng Zhu, Zhen-Yu Wu, Ahmad Elgazzar, Changxin Dong, Tae-Ung Wi, Feng-Yang Chen, Yang Xia, Yuge Feng, Mohsen Shakouri, Jung Yoon (Timothy) Kim, Zhiwei Fang, T. Alan Hatton, Haotian Wang IN: Nature 618, 959–966 (2023). https://doi.org/10.1038/s41586-023-06060-1
Here the authors demonstrate a continuous electrochemical carbon-capture design by coupling oxygen/water (O2/H2O) redox couple with a modular solid-electrolyte reactor. By performing oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) redox electrolysis, their device can efficiently absorb dilute carbon dioxide (CO2) molecules at the high-alkaline cathode–membrane interface to form carbonate ions, followed by a neutralization process through the proton flux from the anode to continuously output a high-purity (>99%) CO2 stream from the middle solid-electrolyte layer. No chemical inputs were needed nor side products generated during the whole carbon absorption/release process.
Matthew J Gidden, Elina Brutschin, Gaurav Ganti, Gamze Unlu, Behnam Zakeri, Oliver Fricko, Benjamin Mitterrutzner, Francesco Lovat, Keywan Riahi IN: Environ. Res. Lett. 18, 074006, DOI 10.1088/1748-9326/acd8d5
The authors analyzed scenarios that include direct air capture of CO2 with storage (DACCS), a novel CDR technology that is not dependent on land potential and can be deployed widely, as well as regional variations in institutional capacity for mitigation based on country-level governance indicators. They find that including novel CDR and representations of institutional capacity can enhance both the feasibility and fairness of 2 °C and 1.5 °C high-overshoot scenarios, especially in the near term, with institutional capacity playing a stronger role than the presence of additional carbon removal methods.
focus.online, 14.06.2023, 10:05 (Übersetzung eines Artikels in „The Economist“, 21.05.23)
„Umweltschädliches Kohlendioxid aus der Luft holen und wieder recyceln? Die „Direct Air Capture“-Anlage in Texas soll das möglich machen. Viele Unternehmen wollen die neue Entwicklung nutzen, um ihr Image zu polieren und bieten an, das CO2 zwischenzulagern – sie erkaufen sich damit Emissionsgutschriften.“
Vitor Carvalho, João Castro-Gomes, Shuqiong Luo IN: Innov. Infrastruct. Solut. 8, 187, https://doi.org/10.1007/s41062-023-01147-0
The importance of the construction sector (building and infrastructure) as a path to achieve climate neutrality, considering the new materials based on accelerated carbonation, is highlighted. Construction materials based on accelerated carbonation have the potential to use and store several quantities of CO2. This work brings forward a new model of construction material production based on innovative technologies developed to reduce the concentration of CO2 in the atmosphere, also considering its economic viability.
Shweta Tripathi, Sonia Choudhary, Alok Meena, Krishna Mohan Poluri IN: Environ Chem Lett, https://doi.org/10.1007/s10311-023-01609-y
Here the authors review carbon capture, usage, and storage with microalgae, with focus on methods to improve carbon dioxide uptake, systems combining wastewater and flue gases, machine learning for strain identification, artificial intelligence and automation, and the circular bioeconomy. Carbon dioxide uptake by microalgae can be improved by using modified photobioreactors, membranes, chemical methods, solvents, adapted strains, genetically engineered strains, omics, and nanotechnology.
