Schlagwort: Direct Air Capture

Media

Researchers create salts for cheap and efficient CO2 capture

by King Abdullah University of Science and Technology on Phys.org, May 3, 2023

„A team of international researchers have developed a method for carbon capture and storage. Using a salt—guanidinium sulfate—the scientists have successfully created lattice-like structures called clathrates that effectively mimic the methane hydrate activity, trapping the CO2 molecules and resulting in an energy efficient way to contain the greenhouse gas.“

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New Publications

Cheng et al. (2023): Modeling and optimization of carbon-negative NGCC plant enabled by modular direct air capture

Pengfei Cheng, David M. Thierry, Howard Hendrix, Katherine D. Dombrowski, Darshan J. Sachde, Matthew J. Realff, Joseph K. Scott IN: Applied Energy 341, 121076, https://doi.org/10.1016/j.apenergy.2023.121076

Recently, the authors proposed a retrofit design for an existing NGCC (Natural gas combined cycle plant) to allow power generation with negative emissions by utilizing both post-combustion carbon capture (PCC) and direct air capture (DAC). The DAC unit captures directly from the atmosphere using low-grade heat from the NGCC via a novel heat integration scheme. In this work, the autors model the proposed retrofit systematically and co-optimize the design and operation of the system for an entire year under different electricity price signals and prices.

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Events

Webinar: Direct Air Capture Pre-Commercial Technology Prize

May 16, 2023 03:00 PM to 04:00 PM EDT

The Direct Air Capture (DAC) Pre-Commercial Technology Prize awards up to $3.2 million in cash prizes and $800,000 in technical assistance vouchers to teams that identify a critical need in the DAC industry, develop a solution to address this gap, and test the idea to a degree of scale. It focuses on the steps of ideation and entrepreneurship needed to prepare technologies and businesses for commercialization. This webinar will inform from prize administrators about competition rules, eligibility, and more. Plus, get questions answered live during a Q&A session.

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German News

Warum wir das CO2 nicht einfach aus der Luft saugen können

von Doktor Whatson auf youtube, 14:38 min

„Kohlendioxid einfach aus der Luft filtern. Das klingt super. Und die Technologien dafür gibt es auch schon! Viele Menschen scheinen zu glauben, das Carbon-Dioxide-Removal allein uns aus der Klimakatastrophe führen kann. Die Schweizer AG Climeworks betreibt die weltweit erste kommerzielle Anlage für Direct Air Capture and Carbon Storage. Die Autoren haben mit dem CTO der Firma über das Potential dieser Technologie gesprochen und seine Aussagen haben sie sehr überrascht.“

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New Publications

Prado et al. (2023): Assessing the impact of CDR on the power system

Augustin Prado, Solene Chiquier, Mathilde Fajardy, Niall Mac Dowell IN: IScience; https://doi.org/10.1016/j.isci.2023.106303

The co-deployment of CDR will have a substantial impact on the broader energy system, with BECCS providing energy services and DACCS consuming them. Thus, in this contribution the authors present a framework for the co-optimisation of the power and CDR sectors and apply it to the United Kingdom as a case study. They identify techno-economically and biogeophysically feasible pathways to meeting targets via the deployment of a portfolio of CDR pathways.

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New Publications

Science – Chen et al. (2023): Direct air capture (DAC) and sequestration of CO2: Dramatic effect of coordinated Cu(II) onto a chelating weak base ion exchanger

Hao Chen, Hang Dong, Zhongyu Shi, Arup K. SenGupta IN: Science Advances 9 (10); DOI: 10.1126/sciadv.adg1956

Here, the authors present a Lewis acid-base interaction–derived hybrid sorbent with polyamine-Cu(II) complex enabling over 5.0 mol of CO2 capture/kg sorbent, nearly two to three times greater capacity than most of the DAC sorbents reported to date. The hybrid sorbent, such as other amine-based sorbents, is amenable to thermal desorption at less than 90°C. In addition, seawater was validated as a viable regenerant, and the desorbed CO2 is simultaneously sequestered as innocuous, chemically stable alkalinity (NaHCO3).

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Media

New Atlas Identifies Top US Regions For Direct Air Capture Deployment

Darren Goode, betterenergy.org, March 1, 2023

„The Great Plains Institute’s Atlas of Direct Air Capture, Opportunities for Negative Emissions in the United States examines key factors that impact regional suitability for development of DAC technology and associated infrastructure. Through this analysis, seven regions emerged as prime locations to develop regional DAC hubs, each with a unique set of advantages: California, Rockies & Northern Plains, Permian, Midcontinent, Gulf, Midwest, and Mid-Atlantic & Great Lakes.“

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Knowledge Transfer

Report: Development of Novel Materials for Direct Air Capture of CO2: MIL-101 (Cr)-Amine Sorbents Evaluation Under Realistic Direct Air Capture Conditions 

Christopher W Jones, Ryan P Lively, Matthew J Realff; Final Report, United States, 2023; doi:10.2172/1907464

The overarching goal of this project is to evaluate the CO2 adsorption properties of a small family of metal-organic framework (MOFs) materials functionalized with amines at sub-ambient conditions. The authors use the sub-ambient lab instrumentation designed or adapted to study the behavior of the pristine metal organic framework (MOF) MIL-101(Cr) and the MOF in the presence of amines ranging from small molecules (e.g. TREN, tris(2-aminoethylamine)) to oligomers (e.g. PEI, poly(ethyleneimine)).

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