Electrofuels as emerging new green alternative fuel: A review of recent literature

Ababneh, Hani; Hameed, B.H.

doi:10.1016/j.enconman.2022.115213

Cited by 33 publications

(13 citation statements)

References 92 publications

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“…There are several e-fuel reviews (e.g. Brynolf et al [5], Grahn et al [6], Ababneh and Hameed [28], Ince et al [29]), but this is the first study (to our knowledge) which analyses the different situational applications within transport and connects the analysis to policy implications.…”

Section: Discussionmentioning

confidence: 99%

“…There are also some review papers on e-fuels, e.g. Brynolf et al [5] focusing on production costs; and more recently Ababneh and Hameed [28] reviewing the production processes, costs and environmental impacts; and Ince et al [29] presenting 79 system-level mathematical modeling and simulation studies of different e-fuel production pathways (including no differentiation in relation to transport mode). Marzi et al [30] analyzed the state-of-the-art of e-fuels research by specifically mapping projects on e-fuels production funded by the EU Horizon 2020 Programme and found the largest interest to be in hydrogen.…”

Section: Introductionmentioning

confidence: 99%

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Review of electrofuel feasibility—prospects for road, ocean, and air transport

Brynolf

Hansson²,

Anderson³

et al. 2022

Prog. Energy

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To meet climate targets the emissions of greenhouse gases from transport need to be reduced considerably. Electrofuels (e-fuels) produced from low-CO2 electricity, water, and carbon (or nitrogen) are potential low-climate-impact transportation fuels. The purpose of this review is to provide a technoeconomic assessment of the feasibility and potential of e-fuels for road, ocean, and air transport. The assessment is based on a review of publications discussing e-fuels for one or more transport modes. For each transport mode, (i) e-fuel options are mapped, (ii) cost per transport unit (e.g., vehicle km) and carbon abatement costs are estimated and compared to conventional options, (iii) prospects and challenges are highlighted, and (iv) policy context is described. Carbon abatement costs for e-fuels (considering vehicle cost, fuel production and distribution cost) are estimated to be in the range 110-1250 €/tonne CO2with e-gasoline and e-diesel at the high end of the range. The investigated combined biofuel and e-fuels production pathways (based on forest residues and waste) are more cost-competitive than the stand-alone e-fuel production pathways, but the global availability of sustainable biomass is limited making these pathways more constrained. While the potential for e-fuels to decarbonize the transport sector has been discussed extensively in the literature, many uncertainties in terms of production costs, vehicle costs and environmental performance remain. It is too early to rule out or strongly promote particular e-fuels for different transport modes. For e-fuels to play a significant role in transportation, their attractiveness relative to other transport options needs to be improved. Incentives will be needed for e-fuels to be cost-effective and increased clarity on how e-fuels are linked to existing policies is needed.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Review of electrofuel feasibility—prospects for road, ocean, and air transport

Brynolf

Hansson²,

Anderson³

et al. 2022

Prog. Energy

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show abstract

“…Electrofuels, or e-fuels, on the other hand, use renewable electricity to convert CO 2 to fuel. Many electrofuel strategies involve electrolysis of water to produce H 2 , which can then react with CO 2 to form value-added products such as methane (Sabatier) or longer length hydrocarbons (Fischer–Tropsch) . CO 2 electrolysis systems have also been studied to electrochemically convert CO 2 to value-added compounds .…”

Section: Introductionmentioning

confidence: 99%

Techno-Economic Assessment of Electromicrobial Production of n-Butanol from Air-Captured CO₂

Adams,

Clark

2024

Environ. Sci. Technol.

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Electromicrobial production (EMP), where electrochemically generated substrates (e.g., H 2 ) are used as energy sources for microbial processes, has garnered significant interest as a method of producing fuels and other value-added chemicals from CO 2 . Combining these processes with direct air capture (DAC) has the potential to enable a truly circular carbon economy. Here, we analyze the economics of a hypothetical system that combines adsorbent-based DAC with EMP to produce n-butanol, a potential replacement for fossil fuels. First-principles-based modeling is used to predict the performance of the DAC and bioprocess components. A process model is then developed to map material and energy flows, and a techno-economic assessment is performed to determine the minimum fuel selling price. Beyond assessing a specific set of conditions, this analytical framework provides a tool to reveal potential pathways toward the economic viability of this process. We show that an EMP system utilizing an engineered knallgas bacterium can achieve butanol production costs of <$6/gal ($1.58/L) if a set of optimistic assumptions can be realized.

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“…The IMO has set a goal of reducing the carbon intensity of ships by at least 40% by 2030 and reducing greenhouse gas emissions from ships by more than 50% by 2050 compared to 2008 [2]. In order to solve energy and environmental issues, it is essential to use renewable alternatives to fossil energy and carbon-neutral energy technologies [3,4].…”

Section: Introductionmentioning

confidence: 99%

A Parametric Study on the Interconnector of Solid Oxide Electrolysis Cells for Co-Electrolysis of Water and Carbon Dioxide

Liu

Shen

et al. 2023

JMSE

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The shipping industry is trying to use new types of fuels to meet strict pollutant emission regulations and carbon emission reduction targets. Hydrogen is one of the options for alternative fuels used in marine applications. Solid oxide electrolysis cell (SOEC) technology can be used for hydrogen production. When water and carbon dioxide are provided to SOECs, hydrogen and carbon monoxide are produced. The interconnector of SOECs plays a vital role in cell performance. In this study, a 3D mathematical model of cathode-supported planar SOECs is developed to investigate the effect of interconnector rib width on the co-electrolysis of water and carbon dioxide in the cell. The model validation is carried out by comparing the numerical results with experimental data in terms of a polarization curve. The rib width is varied from 0.2 mm to 0.8 mm with an interval of 0.1 mm. It is found that the cell voltage is decreased and then increased as the rib width increases. When the current density is 1 A/cm2, the voltages of SOECs with rib widths of 0.2 mm, 0.6 mm, and 0.8 mm are 1.272 V, 1.213 V, and 1.221 V, respectively. This demonstrates that the best performance is provided by the SOEC with a rib width of 0.6 mm. In addition, the local transport processes of SOECs with different rib widths are presented and compared in detail. This study can provide guidelines for the design of interconnectors of SOECs.

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Electrofuels as emerging new green alternative fuel: A review of recent literature

Cited by 33 publications

References 92 publications

Review of electrofuel feasibility—prospects for road, ocean, and air transport

Review of electrofuel feasibility—prospects for road, ocean, and air transport

Techno-Economic Assessment of Electromicrobial Production of n-Butanol from Air-Captured CO₂

A Parametric Study on the Interconnector of Solid Oxide Electrolysis Cells for Co-Electrolysis of Water and Carbon Dioxide

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Electrofuels as emerging new green alternative fuel: A review of recent literature

Cited by 33 publications

References 92 publications

Review of electrofuel feasibility—prospects for road, ocean, and air transport

Review of electrofuel feasibility—prospects for road, ocean, and air transport

Techno-Economic Assessment of Electromicrobial Production of n-Butanol from Air-Captured CO2

A Parametric Study on the Interconnector of Solid Oxide Electrolysis Cells for Co-Electrolysis of Water and Carbon Dioxide

Contact Info

Product

Resources

About

Techno-Economic Assessment of Electromicrobial Production of n-Butanol from Air-Captured CO₂