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Techno-economic analysis on an integrated system for direct air capture and atmospheric water harvesting [dataset] Open Access

Moisture-swing adsorption (MSA) has emerged as a promising technology for direct air capture (DAC) due to its ability to decouple from high-grade heat, which can offer significant potential for low cost and sustainable carbon removal. Achieving scalable deployment requires fully closed-loop materials and energy management, remaining a critical challenge underexplored in current MSA research. The continuous water loss inherent in conventional MSA limits its viability in water-constrained environments. This study proposes an integrated system that couples atmospheric water harvesting (AWH) with MSA. This framework adopts a sequential material flow configuration in which ambient air is processed through a CO2 contactor before entering a water contactor. This design synergistically boosts the relative humidity at AWH inlet, which enhances CO2 and water capture efficiencies. The results indicate that the integrated system is capable of capturing 8 to 15 tons of CO2 annually. The levelized cost of DAC falls within the range of approximately 240-260 $/t. The system demonstrates exceptional performance in arid regions by maintaining a closed-loop water balance and achieving net-negative emissions without external water inputs. It proves that AWH-MSA integration provides a cost-effective pathway for deploying DAC across diverse geographical landscapes.

Descriptions

Resource type

Dataset

Contributors

Data collector: Tang, Zheyu ¹
Chen, Sheng ¹
Wu, Yang ¹
Ji, Ying ¹
Wang, Tao ¹
Creator: Wang, Ruiqi ²
Jiang, Long ¹

¹ Zhejiang University, China
² Durham University, UK

Funder

Engineering and Physical Sciences Research Council

Research methods

Other description

Keyword

Direct air capture
Moisture-swing adsorption
Closed-loop water balance
Atmospheric water harvesting
Techno-economic analysis

Subject

Carbon dioxide mitigation
Adsorption--Research
Water vapor, Atmospheric--Environmental aspects

Location

Language

Cited in

Identifier

ark:/32150/r2pv63g040p
doi:10.15128/r2pv63g040p

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

R. Wang

Date Uploaded

28 August 2026, 14:08:23

Date Modified

1 September 2026, 10:09:44

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File format: vnd.ms-excel (Microsoft Excel 2007+, OpenDocument Text)

Mime type: application/vnd.ms-excel

File size: 39150

Last modified: 2026:08:28 15:26:55+01:00

Filename: data file.xlsx

Original checksum: 82cc04d1044041c91a7f35e89b339699