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Abstract
Direct air carbon capture and storage (DACCS) involves a set of approaches for capturing CO2 directly from the air and its subsequent long-term storage. DACCS is at an early stage of technical development and currently faces a variety of challenges, including high cost and energy requirements. Building on publicly available data, this paper provides: (i) an overview and classification of DACCS systems, (ii) a harmonization of technical and economic performance of direct air capture technologies, (iii) a comprehensive list of technical- and infrastructure-based obstacles to scaling DACCS systems, and (iv) a roadmap and list of priority initiatives for research, development, demonstration, and deployment of DACCS. Our intent is to drive progress against high-impact priority actions, with a focus on accelerating research, development, and deployment of safe, scalable, and low cost DACCS as a component of the broader carbon dioxide removal portfolio.
Supplementary materials
Title
Supplementary Information: A Roadmap for Achieving Scalable, Safe, and Low-cost Direct Air Carbon Capture and Storage
Description
The SI contains four sections: 1) a description of the DAC technology classification, 2) the methodology for the techno-economic assessment, 3) the list of obstacles to safe, low-cost, and scalable DACCS, and 4) the list of priority initiatives for safe, low-cost, and scalable DACCS
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