Climate change mitigation potential of carbon capture and utilization in the chemical industry

Kätelhön, Arne; Meys, Raoul; Deutz, Sarah; Suh, Sangwon; Bardow, André

doi:10.1073/pnas.1821029116

Cited by 433 publications

(320 citation statements)

References 39 publications

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“…The net climate impact of the CO 2 utilization pathways will, in many cases, depend upon the emissions intensity from the prevailing processes 73 . For instance, CO 2 -EOR might currently contribute to an overall reduction in atmospheric CO 2 , compared to business-as-usual 49 .…”

Section: The Outlook For Co 2 Utilizationmentioning

confidence: 99%

“…Similarly, a robust finding in the literature on integrated-assessment modelling is that the electricity sector should be decarbonized first, which then facilitates decarbonization in other, more difficult sectors 77 . In terms of the climate impact per kWh of electricity use, available renewable electricity is more efficiently directed towards e-mobility and heat pumps rather than towards hydrogen-based CCU technologies in the chemical industry 73 .…”

Section: The Outlook For Co 2 Utilizationmentioning

confidence: 99%

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The technological and economic prospects for CO2 utilization and removal

Hepburn

Adlen

Beddington

et al. 2019

Nature

1,280

813

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processes. Biological or land-based forms of CO 2 utilization can generate economic value in the form of, for example, wood products for buildings, increased plant yields from enhanced soil carbon uptake, and even the production of biofuel and bio-derived chemicals. We use this broader definition deliberately; by thinking functionally, rather than narrowly about specific processes, we hope to promote dialogue across scientific fields, compare costs and benefits across pathways, and consider common techno-economic characteristics across pathways that could potentially assist in the identification of routes towards the mitigation of climate change. In this Perspective, we consider a non-exhaustive selection of ten CO 2 utilization pathways and provide a transparent assessment of the potential scale and cost for each one. The ten pathways are as follows: (1) CO 2-based chemical products, including polymers; (2) CO 2-based fuels; (3) microalgae fuels and other microalgae products; (4) concrete building materials; (5) CO 2 enhanced oil recovery (CO 2-EOR); (6) bioenergy with carbon capture and storage (BECCS); (7) enhanced weathering; (8) forestry techniques, including afforestation/reforestation, forest management and wood products; (9) land management via soil carbon sequestration techniques; and (10) biochar. These ten CO 2 utilization pathways can also be characterized as 'cycling', 'closed' and 'open' utilization pathways (Fig. 1, Table 1, Supplementary Materials). For instance, many (but not all) conventional industrial utilization pathways-such as CO 2-based fuels and chemicals-tend to be 'cycling': they move carbon through industrial systems over timescales of days, weeks or months. Such pathways do not provide net CO 2 removal from the atmosphere, but they can reduce emissions via industrial CO 2 capture that displaces fossil fuel use. By contrast, 'closed' pathways involve utilization and nearpermanent CO 2 storage, such as in the lithosphere (via CO 2-EOR or BECCS), in the deep ocean (via terrestrial enhanced weathering) or in mineralized carbon in the built and natural environments. Finally, 'open' pathways tend to be based in biological systems,

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Section: The Outlook For Co 2 Utilizationmentioning

confidence: 99%

Section: The Outlook For Co 2 Utilizationmentioning

confidence: 99%

The technological and economic prospects for CO2 utilization and removal

Hepburn

Adlen

Beddington

et al. 2019

Nature

1,280

813

View full text Add to dashboard Cite

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“…Owing to the higher complexity, an optimization-based approach was chosen to find the environmentally optimal solution. Kätelhön et al (126) expanded this scope to the forward supply chain of 20 large-volume chemicals to quantify climate benefits and trade-offs of CO 2 utilization technologies to supply the global chemical industry.…”

Section: Market-mediated Effectsmentioning

confidence: 99%

Life Cycle Assessment for the Design of Chemical Processes, Products, and Supply Chains

Kleinekorte

Fleitmann

Bachmann

et al. 2020

Annu. Rev. Chem. Biomol. Eng.

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Design in the chemical industry increasingly aims not only at economic but also at environmental targets. Environmental targets are usually best quantified using the standardized, holistic method of life cycle assessment (LCA). The resulting life cycle perspective poses a major challenge to chemical engineering design because the design scope is expanded to include process, product, and supply chain. Here, we first provide a brief tutorial highlighting key elements of LCA. Methods to fill data gaps in LCA are discussed, as capturing the full life cycle is data intensive. On this basis, we review recent methods for integrating LCA into the design of chemical processes, products, and supply chains. Whereas adding LCA as a posteriori tool for decision support can be regarded as established, the integration of LCA into the design process is an active field of research. We present recent advances and derive future challenges for LCA-based design. 203 Annu. Rev. Chem. Biomol. Eng. 2020.11:203-233. Downloaded from www.annualreviews.org Access provided by 44.224.250.200 on 07/08/20. For personal use only.

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“…The catalyst was prepared by dropping the catalyst ink containing the rGO composite on a layer of Vulcan carbon black painted on a surface of carbon paper. CO 2 reduction was carried out in liquid phase, in 0.1 M KHCO 3 .…”

Section: Graphene Derivativesmentioning

confidence: 99%

“…This is a promising technology in research phase for large-scale carbon management applications, because it can convert captured CO 2 into fuels or chemicals using renewable energy. CO 2 utilization technologies have the potential to reduce annual greenhouse gas emissions by up to 3.5 Gt CO 2 -eq in 2030 [3]. Thus, they are able to contribute to climate change mitigation.…”

Section: Introductionmentioning

confidence: 99%

Carbon Materials as Cathode Constituents for Electrochemical CO2 Reduction—A Review

Messias

Ponte

Machado

2019

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This work reviews the latest developments of cathodes for electrochemical CO 2 reduction, with carbon black, mesoporous carbons, carbon nanofibers, graphene, its derivatives and/or carbon nanotubes as constituents. Electrochemical CO 2 reduction into fuels and chemicals powered by renewable energy is a technology that can contribute to climate change mitigation. Strategies used in this fast-evolving field are discussed, having in mind a commercial application. Electrochemical performance of several materials is analyzed, using in some cases the findings of theoretical computational studies, which show the enormous potential of these materials. Considerable challenges still lie ahead to bring this technology into industrial deployment. However, the significant progress achieved so far shows that further R&D efforts might pay off.C 2019, 5, 83 2 of 26 considering the findings of theoretical computational studies, are in some cases analyzed, when this type of study is available. Knowledge gaps and new promising R&D trends of nanocarbon-based materials development for this application are highlighted. Carbon BlackCarbon black is produced by the incomplete combustion of petroleum heavy fractions. It is a form of para-crystalline carbon of high surface area. Although activated carbon has a more favorable surface area to volume ratio (>1000 m 2 /g) than carbon black, its low electrical conductivity makes it unsuitable as electrode material. Commercial carbon blacks, such as Vulcan or Ketjen black have been most frequently used as support to ensure large electrochemical reaction surfaces and to reduce noble metal loading. Metal and Metal-Derived Particles Supported on Carbon BlackCO 2 ER can be carried out in gas phase, where gaseous CO 2 is fed to the cathode through gas diffusion electrodes (GDE), or in liquid phase, where CO 2 dissolved in the liquid electrolyte contacts the electrode. Figure 1 presents a schematic diagram of two possible configurations of both operation modes.C 2019, 5, x FOR PEER REVIEW 2 of 25 discussed, having in mind a commercial application. Electrochemical performances of several materials, considering the findings of theoretical computational studies, are in some cases analyzed, when this type of study is available. Knowledge gaps and new promising R&D trends of nanocarbonbased materials development for this application are highlighted. Carbon BlackCarbon black is produced by the incomplete combustion of petroleum heavy fractions. It is a form of para-crystalline carbon of high surface area. Although activated carbon has a more favorable surface area to volume ratio (>1000 m 2 /g) than carbon black, its low electrical conductivity makes it unsuitable as electrode material. Commercial carbon blacks, such as Vulcan or Ketjen black have been most frequently used as support to ensure large electrochemical reaction surfaces and to reduce noble metal loading. Metal and Metal-Derived Particles Supported on Carbon BlackCO2ER can be carried out in gas phase, where gaseous CO2 is fed to the cathode thro...

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Climate change mitigation potential of carbon capture and utilization in the chemical industry

Cited by 433 publications

References 39 publications

The technological and economic prospects for CO2 utilization and removal

The technological and economic prospects for CO2 utilization and removal

Life Cycle Assessment for the Design of Chemical Processes, Products, and Supply Chains

Carbon Materials as Cathode Constituents for Electrochemical CO2 Reduction—A Review

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