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Process design analysis of a hybrid Power-and-Biomass-to-Liquid process – An approach combining life cycle and techno-economic assessment

Weyand, Julia and Habermeyer, Felix and Dietrich, Ralph-Uwe (2023) Process design analysis of a hybrid Power-and-Biomass-to-Liquid process – An approach combining life cycle and techno-economic assessment. Fuel – The Science and Technology of Fuel and Energy, p. 127763. Elsevier. doi: 10.1016/j.fuel.2023.127763. ISSN 0016-2361.

[img] PDF - Only accessible within DLR bis 14 March 2025 - Postprint version (accepted manuscript)

Official URL: https://www.sciencedirect.com/science/article/abs/pii/S0016236123003769?via%3Dihub


Techno-economically and ecologically optimized processes require understanding of trade-offs between effi-ciencies, costs and environmental impacts. For this purpose, DLR's in-house tool TEPET for techno-economic analysis was enhanced to enable simultaneous life cycle assessment (LCA). Within this study a hybrid Power -and-Biomass-to-Liquid concept is analysed that can switch between a biomass alone and hydrogen enhanced operation. In order to integrate the techno-economic and ecological results, a dimensionless cost-impact factor is introduced, which gets minimised when both costs and environmental impacts are low. The methodology is applied to investigate process parameter variations within this process concept. The varied process parameters are H2/CO ratio, H2 conversion in the Fischer-Tropsch synthesis and CO2 recycle rate to the gasification. Furthermore, the influence of LCA allocation methods on the preferable set of process parameters was examined. Results show a correlation of lowest environmental impact with high fuel efficiency (energetic fuel output per overall energetic input) for economic allocation. For energetic allocation, high process efficiency (ratio of overall energetic output to overall energetic input) leads to the lowest environmental impact. High carbon efficiency is especially important when biomass has a big impact on a certain category. Sensitivity studies for the global warming potential demonstrate a low sensitivity to the investigated process parameter variations compared with changes in input parameters like biomass and electricity source or transport distance. As the net production cost (NPC) are more sensitive towards the process parameter variations, the cost-impact factor is lowest for the set of process parameters with the lowest NPC.

Item URL in elib:https://elib.dlr.de/196095/
Document Type:Article
Title:Process design analysis of a hybrid Power-and-Biomass-to-Liquid process – An approach combining life cycle and techno-economic assessment
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Weyand, JuliaUNSPECIFIEDhttps://orcid.org/0000-0001-6752-6873140971318
Dietrich, Ralph-UweUNSPECIFIEDhttps://orcid.org/0000-0001-9770-4810UNSPECIFIED
Date:15 June 2023
Journal or Publication Title:Fuel – The Science and Technology of Fuel and Energy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:p. 127763
Keywords:life cycle assessment biomass-to-liquid power-and-biomass-to-liquid techno-economic assessment fischer-tropsch alternative fuel fischer-tropsch synthesis energy-systems steam hydrogen efficiency catalysts impact temperature capture fuels
HGF - Research field:Energy
HGF - Program:Materials and Technologies for the Energy Transition
HGF - Program Themes:Chemical Energy Carriers
DLR - Research area:Energy
DLR - Program:E SP - Energy Storage
DLR - Research theme (Project):E - Electrochemical Processes
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Energy System Integration
Deposited By: Weyand, Julia
Deposited On:22 Aug 2023 17:29
Last Modified:27 Oct 2023 14:54

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