Vergleichende Ökobilanz der CO2-basierten und konventionellen Methan- und Methanolproduktion

Hoppe, Wieland; Bringezu, Stefan

doi:10.1007/s00550-016-0389-4

Cited by 8 publications

(5 citation statements)

References 2 publications

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“…The literature review indicates that the production processes of PtL-kerosene are highly energy-intensive and potentially rely on fossil-intensive electricity [31][32][33][34]. Use-phase emissions are aircraft tailpipe emissions from fuel combustion.…”

Section: Selection Of Impact Categories and Assessment Methodsmentioning

confidence: 99%

“…The publications apply different assumptions and methodologies when quantifying environmental impacts of PtL-kerosene production. As shown by Koj et al [31] the carried out life-cycle assessment (LCA) studies [32][33][34] on PtL fuels, and on e-fuels [17,35], showing a lack of transparency regarding the system boundaries and partly regarding the definitions of metrics used. Furthermore, only a few impact categories are considered, thereby, possible trade-offs are not comprehensively identified.…”

Section: Introductionmentioning

confidence: 99%

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Life-Cycle Assessment of Power-to-Liquid Kerosene Produced from Renewable Electricity and CO2 from Direct Air Capture in Germany

et al. 2022

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Decarbonization of the aviation sector is crucial to reaching the global climate targets. We quantified the environmental impacts of Power-to-Liquid kerosene produced via Fischer-Tropsch Synthesis from electricity and carbon dioxide from air as one broadly discussed alternative liquid jet fuel. We applied a life-cycle assessment considering a well-to-wake boundary for five impact categories including climate change and two inventory indicators. Three different electricity production mixes and four different kerosene production pathways in Germany were analyzed, including two Direct Air Capture technologies, and compared to fossil jet fuel. The environmental impacts of Power-to-Liquid kerosene varied significantly across the production pathways. E.g., when electricity from wind power was used, the reduction in CO2-eq. compared to fossil jet fuel varied between 27.6–46.2% (with non-CO2 effects) and between 52.6–88.9% (without non-CO2 effects). The reduction potential regarding CO2-eq. of the layout using low-temperature electrolysis and high-temperature Direct Air Capture was lower compared to the high-temperature electrolysis and low-temperature Direct Air Capture. Overall, the layout causing the lowest environmental impacts uses high-temperature electrolysis, low-temperature Direct Air Capture and electricity from wind power. This paper showed that PtL-kerosene produced with renewable energy could play an important role in decarbonizing the aviation sector.

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Section: Selection Of Impact Categories and Assessment Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Life-Cycle Assessment of Power-to-Liquid Kerosene Produced from Renewable Electricity and CO2 from Direct Air Capture in Germany

et al. 2022

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“…Of the promising PtL fuels considered, most environmental assessment studies focus on electricity-based methanol production (Power-to-Methanol). The PtX LCA review by Koj et al [178] identified nine studies with LCA considerations of methanol [191,[196][197][198][199][200][201][202][203]. In the LCA review by Kigle et al [182], six LCA studies on methanol were identified [189,191,196,[204][205][206].…”

Section: Methanolmentioning

confidence: 99%

An Overview of Promising Alternative Fuels for Road, Rail, Air, and Inland Waterway Transport in Germany

et al. 2022

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To solve the challenge of decarbonizing the transport sector, a broad variety of alternative fuels based on different concepts, including Power-to-Gas and Power-to-Liquid, and propulsion systems, have been developed. The current research landscape is investigating either a selection of fuel options or a selection of criteria, a comprehensive overview is missing so far. This study aims to close this gap by providing a holistic analysis of existing fuel and drivetrain options, spanning production to utilization. For this purpose, a case study for Germany is performed considering different vehicle classes in road, rail, inland waterway, and air transport. The evaluated criteria on the production side include technical maturity, costs, as well as environmental impacts, whereas, on the utilization side, possible blending with existing fossil fuels and the satisfaction of the required mission ranges are evaluated. Overall, the fuels and propulsion systems, Methanol-to-Gasoline, Fischer–Tropsch diesel and kerosene, hydrogen, battery-electric propulsion, HVO, DME, and natural gas are identified as promising future options. All of these promising fuels could reach near-zero greenhouse gas emissions bounded to some mandatory preconditions. However, the current research landscape is characterized by high insecurity with regard to fuel costs, depending on the predicted range and length of value chains.

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“…The environmental impact of CO 2 -based methanol production has been assessed in multiple studies [4][5][6][7][8][9][10][11][12][13][14][15]. A meta-LCA of CO 2 -based methanol production revealed a global warming impact (GWI) of 6.27 kg CO2-eq.…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Assessment of Steel Mill Gas‐Based Methanol Production within the Carbon2Chem® Project

Thonemann

Maga

2020

Chemie Ingenieur Technik

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Within the Carbon2Chem® project, new processes have been developed to valorize steel mill gases by producing methanol. This article compares the global warming impact of integrated steel and methanol production to the stand‐alone production of steel and methanol. In order to generate mass and energy balances of the cross‐industrial network, several simulation approaches were conducted, and two power sources investigated. In the case of a power mix in 2030, the conventional production of steel and methanol is favorable, and in the case of wind power, the integrated production of steel and methanol shows greater benefit. If an electricity mix with a carbon intensity of less than 0.23 kgCO2‐eq.kWh−1 electricity is used, the integrated production of steel and methanol has a lower global warming impact than stand‐alone steel and methanol production.

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Vergleichende Ökobilanz der CO2-basierten und konventionellen Methan- und Methanolproduktion

Cited by 8 publications

References 2 publications

Life-Cycle Assessment of Power-to-Liquid Kerosene Produced from Renewable Electricity and CO2 from Direct Air Capture in Germany

Life-Cycle Assessment of Power-to-Liquid Kerosene Produced from Renewable Electricity and CO2 from Direct Air Capture in Germany

An Overview of Promising Alternative Fuels for Road, Rail, Air, and Inland Waterway Transport in Germany

Life Cycle Assessment of Steel Mill Gas‐Based Methanol Production within the Carbon2Chem® Project

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