Hydrogenation of carbon dioxide (CO2) to fuels in microreactors: a review of set-ups and value-added chemicals production

Sanaa Hafeez; Eleana Harkou; Sultan M. Al-Salem; Maria A. Goula; Nikolaos Dimitratos; Nikolaos D. Charisiou; Alberto Villa; Atul Bansode; Gary Leeke; George Manos; Achilleas Constantinou

doi:10.1039/d1re00479d

Hydrogenation of carbon dioxide (CO₂) to fuels in microreactors: a review of set-ups and value-added chemicals production

Sanaa Hafeez, Eleana Harkou, Sultan M. Al-Salem, Maria A. Goula, Nikolaos Dimitratos, Nikolaos D. Charisiou, Alberto Villa, Atul Bansode, Gary Leeke, George Manos, Achilleas Constantinou^*

^*Corresponding author for this work

Chemical Engineering

Research output: Contribution to journal › Review article › peer-review

3 Citations (Scopus)

Abstract

Climate change, the greenhouse effect and fossil fuel extraction have gained a growing interest in research and industrial circles to provide alternative chemicals and fuel synthesis technologies. Carbon dioxide (CO₂) hydrogenation to value-added chemicals using hydrogen (H₂) from renewable power (solar, wind) offers a unique solution. From this aspect this review describes the various products, namely methane (C₁), methanol, ethanol, dimethyl ether (DME) and hydrocarbons (HC_s) originating via CO₂ hydrogenation reaction. In addition, conventional reactor units for the CO₂ hydrogenation process are explained, as well as different types of microreactors with key pathways to determine catalyst activity and selectivity of the value-added chemicals. Finally, limitations between conventional units and microreactors and future directions for CO₂ hydrogenation are detailed and discussed. The benefits of such set-ups in providing platforms that could be utilized in the future for major scale-up and industrial operation are also emphasized.

Original language	English
Pages (from-to)	795-812
Number of pages	18
Journal	Reaction Chemistry and Engineering
Volume	7
Issue number	4
Early online date	10 Feb 2022
DOIs	https://doi.org/10.1039/d1re00479d
Publication status	Published - 1 Apr 2022

Bibliographical note

Funding Information:
There are no acknowledgments to declare.

Publisher Copyright:
© 2022 The Royal Society of Chemistry

ASJC Scopus subject areas

Catalysis
Chemistry (miscellaneous)
Chemical Engineering (miscellaneous)
Process Chemistry and Technology
Fluid Flow and Transfer Processes

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

Access to Document

10.1039/d1re00479d

Cite this

Hafeez, S., Harkou, E., Al-Salem, S. M., Goula, M. A., Dimitratos, N., Charisiou, N. D., Villa, A., Bansode, A., Leeke, G., Manos, G., & Constantinou, A. (2022). Hydrogenation of carbon dioxide (CO₂) to fuels in microreactors: a review of set-ups and value-added chemicals production. Reaction Chemistry and Engineering, 7(4), 795-812. https://doi.org/10.1039/d1re00479d

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abstract = "Climate change, the greenhouse effect and fossil fuel extraction have gained a growing interest in research and industrial circles to provide alternative chemicals and fuel synthesis technologies. Carbon dioxide (CO2) hydrogenation to value-added chemicals using hydrogen (H2) from renewable power (solar, wind) offers a unique solution. From this aspect this review describes the various products, namely methane (C1), methanol, ethanol, dimethyl ether (DME) and hydrocarbons (HCs) originating via CO2 hydrogenation reaction. In addition, conventional reactor units for the CO2 hydrogenation process are explained, as well as different types of microreactors with key pathways to determine catalyst activity and selectivity of the value-added chemicals. Finally, limitations between conventional units and microreactors and future directions for CO2 hydrogenation are detailed and discussed. The benefits of such set-ups in providing platforms that could be utilized in the future for major scale-up and industrial operation are also emphasized.",

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