Klaus S. Lackner

Design and Demonstration of a Direct Air Capture System with Moisture-Driven CO2 Delivery into Aqueous Medium

Justin Flory, Shuqin Li, Garrett D. Cole, Lindsey Hamblin et autres

Two direct air capture (DAC) systems were designed and demonstrated to passively capture CO2 from ambient air and use moisture to release the CO2 into an alkaline medium. A bench-scale system delivering ∼1 g CO2 d-1 was demonstrated in a laminar flow …

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Moisture-Driven CO2 Direct Air Capture and Delivery for Cultivating Cyanobacteria

Justin Flory, Shuqin Li, Samantha Taylor, Sunil Tiwari et autres

A system was developed and demonstrated that uses solid sorbents to capture CO2 passively from ambient air and to subsequently release CO2 when immersed in an alkaline medium. The system was used to cultivate the cyanobacterium Synechocystis sp. PCC 6803 at the …

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Meteorology-driven screening of moisture swing sorbents for passive direct air capture

Mohammad Abu Talha, John Cirucci, Klaus S. Lackner

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Variability Analysis of Moisture Swing Sorbents in Passive Direct Air Capture Systems

Mohammad Abu Talha, John F. Cirucci, Klaus S. Lackner

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Intergenerational equity and responsibility: a call to internalize impermanence into certifying carbon sequestration

Stephanie Harmonie Arcusa, Klaus S. Lackner

Carbon Dioxide Removal that limits or reduces cumulative emissions for the goal of climate action requires sequestration. The assurance that carbon remains sequestered is colloquially known as permanence. In current certification frameworks, permanence is often ascribed a duration inconsistent with and much …

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Carbon sequestration ought to be permanent on climate-relevant timescales

Stephanie Harmonie Arcusa, Klaus S. Lackner

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Milestone in predicting core plasma turbulence: successful multi-channel validation of the gyrokinetic code GENE

Klara Höfler, C. Lechte, Pedro Molina, Michael Bergmann et autres

On the basis of several recent breakthroughs in fusion research, many activities have been launched around the world to develop fusion power plants on the fastest possible time scale. In this context, high-fidelity simulations of the plasma behavior on large supercomputers provide …

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Moisture-driven CO2 direct air capture and delivery for cultivating cyanobacteria

Justin Flory, Shuqin Li, Jason Kmon, Thiago Stangherlin Barbosa et autres

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Observation of magnetic islands in tokamak plasmas during the suppression of edge-localized modes

Matthias Willensdorfer, V. Mitterauer, M. Hoelzl, Mark R. Cianciosa et autres

Abstract In tokamaks, a leading platform for fusion energy, periodic filamentary plasma eruptions known as edge-localized modes occur in plasmas with high-energy confinement and steep pressure profiles at the plasma edge. These edge-localized modes could damage the tokamak wall but can be …

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Spatiotemporal Adaptive Passive Direct Air Capture

James Austell, Katherine D. Dombrowski, Adam S. Berger, John F. Cirucci et autres

Carbon Collect Inc., along with Arizona State University, the Electric Power Research Institute (EPRI), PM Group, and Trimeric Corporation, completed an initial design of a commercial-scale, passive direct air capture (DAC) system termed “carbon trees” that will capture, separate, and store at …

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Activated Carbon Fiber Felt Composites for the Direct Air Capture of Carbon Dioxide

Mani Modayil Korah, Kyle Culp, Klaus S. Lackner, Matthew Green

Abstract Negative emissions technologies to mitigate climate change require innovative solutions for the direct air capture (DAC) of CO2 from the atmosphere. K2CO3 readily reacts with CO2 to form KHCO3; however, bulk K2CO3 suffers from very slow sorption kinetics. By incorporating K2CO3 …

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A Phenomenological Model for Interstitial Hydrogen Absorption in Niobium

Arvind Ramachandran, Houlong L. Zhuang, Klaus S. Lackner

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