A comparative energy and costs assessment and optimization for direct air capture technologies

Francesco Sabatino; Alexa Grimm; Fausto Gallucci; Martin van Sint Annaland; Gert Jan Kramer; Matteo Gazzani

doi:10.1016/j.joule.2021.05.023

A comparative energy and costs assessment and optimization for direct air capture technologies

Francesco Sabatino, Alexa Grimm, Fausto Gallucci, Martin van Sint Annaland, Gert Jan Kramer, Matteo Gazzani^*

^*Corresponding author for this work

Eindhoven University of Technology

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

This work provides a comparative technical assessment of three technologies for CO₂ removal from air: two aqueous-scrubbing processes and one solid sorbent process. We compute productivity and exergy and energy consumption using process simulations and mathematical optimization. Moreover, we evaluate the cost range and discuss the challenges for large-scale deployment. We show that all technologies can provide high-purity CO₂ and that the solid-based process has the potential to offer the best performance, owing to an exergy demand of 1.4–3.7 MJ.kg_CO₂⁻¹ and a productivity of 3.8–10.6 kg_CO₂.m⁻³.h⁻¹. Translating productivity and energy into cost of CO₂ capture via a simple model, we show that the capital cost is the main cost driver. All technologies have the potential to operate below 200 $.ton_CO₂⁻¹ under favorable, yet realistic, energy and reactor costs. The solid-sorbent process achieves this under a broader range of conditions and is less dependent on the installation cost when a high mass transfer is achieved.

Original language	English
Pages (from-to)	2047-2076
Number of pages	30
Journal	Joule
Volume	5
Issue number	8
DOIs	https://doi.org/10.1016/j.joule.2021.05.023
Publication status	Published - 18 Aug 2021

Bibliographical note

Funding Information:
This work was sponsored by Shell Global Solutions International BV .

Publisher Copyright:
© 2021 Elsevier Inc.

Funding

This work was sponsored by Shell Global Solutions International BV .

Keywords

CCS
CDR
DAC
direct air capture
negative emissions technologies
net zero emissions
optimization
process modelling
solid sorbents
tecno-economic assessment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.joule.2021.05.023

1-s2.0-S2542435121002580-mainFinal published version, 2.98 MBLicence: Taverne

Cite this

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title = "A comparative energy and costs assessment and optimization for direct air capture technologies",

abstract = "This work provides a comparative technical assessment of three technologies for CO2 removal from air: two aqueous-scrubbing processes and one solid sorbent process. We compute productivity and exergy and energy consumption using process simulations and mathematical optimization. Moreover, we evaluate the cost range and discuss the challenges for large-scale deployment. We show that all technologies can provide high-purity CO2 and that the solid-based process has the potential to offer the best performance, owing to an exergy demand of 1.4–3.7 MJ.kgCO2−1 and a productivity of 3.8–10.6 kgCO2.m−3.h−1. Translating productivity and energy into cost of CO2 capture via a simple model, we show that the capital cost is the main cost driver. All technologies have the potential to operate below 200 $.tonCO2−1 under favorable, yet realistic, energy and reactor costs. The solid-sorbent process achieves this under a broader range of conditions and is less dependent on the installation cost when a high mass transfer is achieved.",

keywords = "CCS, CDR, DAC, direct air capture, negative emissions technologies, net zero emissions, optimization, process modelling, solid sorbents, tecno-economic assessment",

author = "Francesco Sabatino and Alexa Grimm and Fausto Gallucci and {van Sint Annaland}, Martin and Kramer, {Gert Jan} and Matteo Gazzani",

note = "Funding Information: This work was sponsored by Shell Global Solutions International BV . Publisher Copyright: {\textcopyright} 2021 Elsevier Inc.",

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AU - Sabatino, Francesco

AU - Grimm, Alexa

AU - Gallucci, Fausto

AU - van Sint Annaland, Martin

AU - Kramer, Gert Jan

AU - Gazzani, Matteo

PY - 2021/8/18

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N2 - This work provides a comparative technical assessment of three technologies for CO2 removal from air: two aqueous-scrubbing processes and one solid sorbent process. We compute productivity and exergy and energy consumption using process simulations and mathematical optimization. Moreover, we evaluate the cost range and discuss the challenges for large-scale deployment. We show that all technologies can provide high-purity CO2 and that the solid-based process has the potential to offer the best performance, owing to an exergy demand of 1.4–3.7 MJ.kgCO2−1 and a productivity of 3.8–10.6 kgCO2.m−3.h−1. Translating productivity and energy into cost of CO2 capture via a simple model, we show that the capital cost is the main cost driver. All technologies have the potential to operate below 200 $.tonCO2−1 under favorable, yet realistic, energy and reactor costs. The solid-sorbent process achieves this under a broader range of conditions and is less dependent on the installation cost when a high mass transfer is achieved.

AB - This work provides a comparative technical assessment of three technologies for CO2 removal from air: two aqueous-scrubbing processes and one solid sorbent process. We compute productivity and exergy and energy consumption using process simulations and mathematical optimization. Moreover, we evaluate the cost range and discuss the challenges for large-scale deployment. We show that all technologies can provide high-purity CO2 and that the solid-based process has the potential to offer the best performance, owing to an exergy demand of 1.4–3.7 MJ.kgCO2−1 and a productivity of 3.8–10.6 kgCO2.m−3.h−1. Translating productivity and energy into cost of CO2 capture via a simple model, we show that the capital cost is the main cost driver. All technologies have the potential to operate below 200 $.tonCO2−1 under favorable, yet realistic, energy and reactor costs. The solid-sorbent process achieves this under a broader range of conditions and is less dependent on the installation cost when a high mass transfer is achieved.

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A comparative energy and costs assessment and optimization for direct air capture technologies

Abstract

Bibliographical note

Funding

Keywords

UN SDGs

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