LAPSE:2023.11656
Published Article
LAPSE:2023.11656
Techno-Economic Assessment of the Integration of Direct Air Capture and the Production of Solar Fuels
Enric Prats-Salvado, Nathalie Monnerie, Christian Sattler
February 27, 2023
Non-abatable emissions are one of the decarbonization challenges that could be addressed with carbon-neutral fuels. One promising production pathway is the direct air capture (DAC) of carbon dioxide, followed by a solar thermochemical cycle and liquid fuel synthesis. In this study, we explore different combinations of these technologies to produce methanol from an economic perspective in order to determine the most efficient one. For this purpose, a model is built and simulated in Aspen Plus®, and a solar field is designed and sized with HFLCAL®. The inherent dynamics of solar irradiation were considered with the meteorological data from Meteonorm® at the chosen location (Riyadh, Saudi Arabia). Four different integration strategies are assessed by determining the minimum selling price of methanol for each technology combination. These values were compared against a baseline with no synergies between the DAC and the solar fuels production. The results show that the most economical methanol is produced with a central low-temperature DAC unit that consumes the low-quality waste heat of the downstream process. Additionally, it is determined with a sensitivity analysis that the optimal annual production of methanol is 11.8 kt/y for a solar field with a design thermal output of 280 MW.
Keywords
direct air capture, Methanol, process integration, solar energy, techno-economic assessment, thermochemical cycle
Suggested Citation
Prats-Salvado E, Monnerie N, Sattler C. Techno-Economic Assessment of the Integration of Direct Air Capture and the Production of Solar Fuels. (2023). LAPSE:2023.11656
Author Affiliations
Prats-Salvado E: German Aerospace Center (DLR), Institute of Future Fuels, 51147 Cologne, Germany; Faculty of Mechanical Science and Engineering, Institute of Power Engineering, Solar Fuel Production, Technische Universität Dresden, 01062 Dresden, Germany [ORCID]
Monnerie N: German Aerospace Center (DLR), Institute of Future Fuels, 51147 Cologne, Germany
Sattler C: German Aerospace Center (DLR), Institute of Future Fuels, 51147 Cologne, Germany; Faculty of Mechanical Science and Engineering, Institute of Power Engineering, Solar Fuel Production, Technische Universität Dresden, 01062 Dresden, Germany
Journal Name
Energies
Volume
15
Issue
14
First Page
5017
Year
2022
Publication Date
2022-07-09
Published Version
ISSN
1996-1073
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Original Submission
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PII: en15145017, Publication Type: Journal Article
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LAPSE:2023.11656
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doi:10.3390/en15145017
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Feb 27, 2023
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