Schlagwort: Direct Air Capture

Brazzola et al. (2024): Utilizing CO2 as a strategy to scale up direct air capture may face fewer short-term barriers than directly storing CO2

Nicoletta Brazzola, Christian Moretti, Katrin Sievert, Anthony Patt, Johan Lilliestam IN: Environmental Research Letters 19 (5), 054037, https://doi.org/10.1088/1748-9326/ad3b1f

Direct air capture is increasingly recognized as a necessary puzzle piece to achieve the Paris climate targets. However, the current high cost and energy intensity of DAC act as a barrier. Short-term strategies for initial deployment, technology improvement, and cost reduction are needed to enable large-scale deployment. The authors assess and compare two near-term pathways leading to the same installed DAC capacity and thus yielding the same cost reductions: its combination with CO2 storage as direct air carbon capture and storage, or its deployment for CO2 utilization as direct air carbon capture and utilization e.g. for synthetic fuels, chemicals, and materials.

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López et al. (2024): Indoor CO2 direct air capture and utilization: Key strategies towards carbon neutrality

L.R. López, P. Dessì, A. Cabrera-Codony, L. Rocha-Melogno, N.J.R. Kraakman, M.D. Balaguer, S. Puig IN: Cleaner Engineering and Technology 20, 100746, https://doi.org/10.1016/j.clet.2024.100746

One application of DAC is indoor CO2 direct air capture (iCO2-DAC). A wide range of materials with unique properties for CO2 capture have been investigated, including porous materials, zeolites, and metal-organic frameworks. This review article highlights the importance of iCO2-DAC to improve indoor air quality in buildings and boost the circular economy. It discusses the available carbon capture technologies and materials, discussing their properties and focusing on those potentially applicable to indoor environments.

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Block et al. (2024): Analysing direct air capture for enabling negative emissions in Germany: an assessment of the resource requirements and costs of a potential rollout in 2045

Simon Block, Peter Viebahn, Christian Jungbluth IN: Frontiers in Climate 6, https://doi.org/10.3389/fclim.2024.1353939

The aim of this paper is to analyse and comparatively classify the resource consumption (land use, renewable energy and water) and costs of possible DAC implementation pathways for Germany. The paths are based on a selected, existing climate neutrality scenario that requires the removal of 20 Mt of CO2 per year by DACCS from 2045. The analysis focuses on the so-called “low-temperature” DAC process, which might be more advantageous for Germany than the “high-temperature” one.

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Wang et al. (2024): Reviewing direct air capture startups and emerging technologies

Eryu Wang, Rahul Navik, Yihe Mia, Qi Gao, David Izikowitz, Lei Chen, Jia Li IN: Cell Reports Physical Science 5 (2), 101791, https://doi.org/10.1016/j.xcrp.2024.101791

To facilitate market-based DAC research, this review compiles information on over 50 DAC startups and their potential partners, revealing a diverse prospective market. By synthesizing existing studies and identifying the opportunities and challenges faced by different DAC startups, potential research is identified to enrich the DAC business ecosystem. This review aims to facilitate collaborations among science, engineering, and innovation management for worldwide deployments of DAC.

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Li et al. (2024): Critical review on mobile direct air capture: Concept expansion, characteristic description, and performance evaluation

Shuangjun Li, Yifang Feng, Yuhan Li, Shuai Deng, Xiangkun Elvis Cao, Ki Bong Lee, Junyao Wang IN: Matter 7 (3), 889-933, https://doi.org/10.1016/j.matt.2024.01.003

This review introduces the innovative concept of mobile DAC, expanding DAC’s scope and addressing development challenges. The research methodology within the context of mobile DAC’s application scenario is investigated. Specifically, the research focuses on mobile DAC integrated into vehicles, encompassing various aspects such as materials, reactors, and system-scale research approaches. 

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Bouaboula et al. (2024): Comparative review of Direct air capture technologies: From technical, commercial, economic, and environmental aspects

Houssam Bouaboula, Jamal Chaouki, Youssef Belmabkhout, Abdelghafour Zaabout IN: Chemical Engineering Journal 484, 149411, https://doi.org/10.1016/j.cej.2024.149411

Direct air capture is set to play a crucial role in meeting climate change targets as most recent climate scenarios rely on its large-scale implementation. Nevertheless, despite this widespread consensus, DAC performance and impact have not been sufficiently investigated, which has resulted in hindering its wide-scale deployment for climate change mitigation initiatives. Here, we present a comparative review of different DAC technologies and examine their performance from a holistic perspective by considering different aspects, from technical, commercial, and economic to environmental.

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Nokpho et al. (2024): Evaluating regeneration performance of amine functionalized solid sorbents for direct air CO2 capture using microwave

Pacharapol Nokpho, Paka-on Amornsin, Petpitcha Boonmatoon, Xiaolin Wang, Benjapon Chalermsinsuwan IN: Materials Today Sustainability 26, 100728, https://doi.org/10.1016/j.mtsust.2024.100728

CO2 capture by liquid amine has many drawbacks. These processes require significant energy to regenerate the solvents, releasing the captured CO2 for storage or utilization, which leads to increased operational costs and can diminish the overall efficiency of carbon capture systems. Recent research explores new promising techniques by CO2 capture using highly efficient solid sorbents. This study then focuses on enhancing a porous alumina material with potassium carbonate (K2CO3) and monoethanolamine to optimize CO2 capture capacity and regeneration performance. 

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Balasubramaniam (2024): Process-performance of solid sorbents for Direct Air Capture (DAC) of CO2 in optimized temperature-vacuum swing adsorption (TVSA) cycles

Bhubesh Murugappan Balasubramaniam, Phuc-Tien Thierry, Samuel Lethier, Veronique Pugnet, Philip Llewellyn, Arvind Rajendran IN: Chemical Engineering Journal 485, 149568, https://doi.org/10.1016/j.cej.2024.149568

The process performance of three amine-functionalized chemisorbents and two physisorbents was evaluated for direct air capture of CO2 in temperature-vacuum swing adsorption and steam-assisted temperature-vacuum swing adsorption cycles. The study showed that physisorbents, generally not studied for DAC, can be promising. Parametric studies revealed that the lack of multi-component thermodynamic and kinetic data impedes the objective evaluation of DAC processes.

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Master thesis: Potential analysis of the integration of flexibly operated Direct Air Capture (DAC) plants in the heat and power system using the example of Hamburg

Moritz Rickert, Hamburg University of Applied Sciences, http://hdl.handle.net/20.500.12738/14920

For climate neutrality by 2045, Germany must compensate unavoidable residual greenhouse gas emissions by negative emission technologies such as direct air capture technology. This study explores the technical feasibility and economic viability of implementing flexibly operated DAC plants in Hamburg’s district heating system in 2045.

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Ignatusha et al. (2024): Membrane Separation Technology in Direct Air Capture

Pavlo Ignatusha, Haiqing Lin, Noe Kapuscinsky, Ludmila Scoles, Weiguo Ma, Bussaraporn Patarachao, Naiying Du IN: Membranes 14(2), 30, https://doi.org/10.3390/membranes14020030

Current DAC technologies mainly consider sorbent-based systems; however, membrane technology can be considered a promising DAC approach since it provides several advantages, e.g., lower energy and operational costs, less environmental footprint, and more potential for small-scale ubiquitous installations. In this article, the ongoing research and DAC application attempts via membrane separation have been reviewed. 

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