Assessing the environmental potential of carbon dioxide utilization

Dumont, Marie-Noëlle; Aßen, Niklas von der; Sternberg, André Dirk; Bardow, André

doi:10.1016/b978-0-444-59506-5.50112-7

Cited by 7 publications

(4 citation statements)

References 4 publications

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“…The present study clearly shows that using CO 2 from a fossil origin will not provide a carbon neutral fuel. This supports an earlier claim by Dumont (2012) that “positive environmental effects of a CO 2 consuming reaction cannot be taken for granted” . Using atmospheric CO 2 is the best option but does not provide a carbon neutral fuel because of the CO 2 emissions related to fossil energy demand in background processes.…”

Section: Discussionsupporting

confidence: 82%

Energy and Climate Impacts of Producing Synthetic Hydrocarbon Fuels from CO₂

Giesen¹,

Kleijn²,

Kramer

2014

Environ. Sci. Technol.

138

116

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Within the context of carbon dioxide (CO2) utilization there is an increasing interest in using CO2 as a resource to produce sustainable liquid hydrocarbon fuels. When these fuels are produced by solely using solar energy they are labeled as solar fuels. In the recent discourse on solar fuels intuitive arguments are used to support the prospects of these fuels. This paper takes a quantitative approach to investigate some of the claims made in this discussion. We analyze the life cycle performance of various classes of solar fuel processes using different primary energy and CO2 sources. We compare their efficacy with respect to carbon mitigation with ubiquitous fossil-based fuels and conclude that producing liquid hydrocarbon fuels starting from CO2 by using existing technologies requires much more energy than existing fuels. An improvement in life cycle CO2 emissions is only found when solar energy and atmospheric CO2 are used. Producing fuels from CO2 is a very long-term niche at best, not the panacea suggested in the recent public discourse.

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Section: Discussionsupporting

confidence: 82%

Energy and Climate Impacts of Producing Synthetic Hydrocarbon Fuels from CO₂

Giesen¹,

Kleijn²,

Kramer

2014

Environ. Sci. Technol.

138

116

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“…Water and carbon dioxide will need to be combined with renewable energy from carbon-neutral sources, such as wind or solar, to produce hydrocarbons in a sustainable manner [1][2][3][4][5][6][7][8][9][10]. Initially, this CO 2 will come from high CO 2 concentration sources such as steel mills, cement furnaces, and ethanol fermenters.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical generation of syngas from water and carbon dioxide at industrially important rates

Liu

Masel

Chen

et al. 2016

Journal of CO2 Utilization

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A B S T R A C TThe electrochemical production of syngas would enable production of chemicals and transportation fuels from carbon dioxide, water and renewable energy, but a suitable process at the moment does not exist. In this paper we consider two options for syngas production: (i) CO 2 electrolysis to produce CO, water electrolysis to produce H 2 and then mixing the CO and H 2 to yield syngas; and (ii) the simultaneous coelectrolysis of CO 2 and H 2 O in a single electrolyzer. The results show that both processes can produce syngas at industrially important rates. In this paper we demonstrate CO 2 electrolysis at 100 mA/cm 2 , i.e., about 20 turnovers/s, and water electrolysis at 8 A/cm 2 at 2.0 V/cell, with about 1,600 turnovers/s. Both systems are stable for a thousand hours or more, i.e., millions of turnovers. We also demonstrate simultaneous CO and H 2 production in a single electrolyzer. These results demonstrate that syngas can be produced at industrially important rates via electrolysis.

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“…Bei elektrochemischen Direktsynthesen ist die eigentliche Reaktion Treiber der Energieintensität. Deshalb ist eine positive Umweltwirkung der CO 2 ‐Konversion nicht zwangsläufig gegeben .…”

Section: Introductionunclassified

Standortplanung für die Herstellung CO₂‐basierter Chemikalien am Beispiel der Olefinproduktion

Thonemann

Stießel

Maga

et al. 2019

Chemie Ingenieur Technik

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This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. Die rohstoffliche Nutzung von CO 2 gewinnt in Anbetracht des Klimaschutzes und als alternative Rohstoffbasis zunehmend an Bedeutung. Sowohl elektrochemische Direktsynthesen als auch thermochemische Verfahren zur CO 2 -Konversion gehen mit einem hohen Bedarf an elektrischer Energie einher. Ein Beitrag zum Klimaschutz ist nur im Fall einer CO 2 -armen Stromerzeugung möglich, wie sie z. B. durch die Nutzung von Windkraft oder Solarenergie realisiert werden kann. Vor diesem Hintergrund präsentiert der vorliegende Artikel eine Methodik zur Identifizierung von geeigneten Standorten für die CO 2 -basierte Produktion von Olefinen in Deutschland.Schlagwörter: Carbon capture and use, CO 2 -Nutzung, CO 2 -Quellen, Methanol-to-Olefins, StandortplanungThe use of CO 2 as raw material is increasingly gaining in importance as an option for climate protection and as an alternative raw material feedstock. Both direct electrochemical syntheses and thermochemical processes are associated with a high demand for electrical energy. A contribution to climate protection is only possible in the case of low-carbon power generation, as can be realized, e.g., by wind power or solar energy. This article presents a methodology for identifying suitable sites for the CO 2 -based production of olefins in Germany.

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Assessing the environmental potential of carbon dioxide utilization

Cited by 7 publications

References 4 publications

Energy and Climate Impacts of Producing Synthetic Hydrocarbon Fuels from CO₂

Energy and Climate Impacts of Producing Synthetic Hydrocarbon Fuels from CO₂

Electrochemical generation of syngas from water and carbon dioxide at industrially important rates

Standortplanung für die Herstellung CO₂‐basierter Chemikalien am Beispiel der Olefinproduktion

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Assessing the environmental potential of carbon dioxide utilization

Cited by 7 publications

References 4 publications

Energy and Climate Impacts of Producing Synthetic Hydrocarbon Fuels from CO2

Energy and Climate Impacts of Producing Synthetic Hydrocarbon Fuels from CO2

Electrochemical generation of syngas from water and carbon dioxide at industrially important rates

Standortplanung für die Herstellung CO2‐basierter Chemikalien am Beispiel der Olefinproduktion

Contact Info

Product

Resources

About

Energy and Climate Impacts of Producing Synthetic Hydrocarbon Fuels from CO₂

Energy and Climate Impacts of Producing Synthetic Hydrocarbon Fuels from CO₂

Standortplanung für die Herstellung CO₂‐basierter Chemikalien am Beispiel der Olefinproduktion