Title:
Technical and Economic Optimization of Power and Biomass-to-Liquid Processes by Exergoeconomic Analysis
Author(s):
Albrecht, F.G., Dietrich, R-U.
Document(s):
Paper
Abstract:
Replacing fossil fuels by green alternatives could be a viable option to significantly reduce greenhouse gas (GHG) emissions in transport. These alternative fuels should ideally be characterized by low embedded GHG emissions, low production costs and should be made from sustainable power and raw material sources with sufficient technical potential in order to cover a significant share of future fuel consumption. However, these alternative fuels of the second generation are currently not economic feasible. In order to identify and quantify cost reduction potentials, the so-called exergoeconomic analysis (EEA) can be applied. EEA provides the design engineer with insights on the cost formation process in alternative fuel production processes, which are not available from traditional techno economic assessment, for example the illustration of cost flows in the entire process. In this study, a power & biomass to liquid (PBtL) Fischer-Tropsch process is exemplarily analyzed using the EEA methodology. The study comprises of process modelling of the designed PBtL concept in Aspen PlusŪ software as well as detailed exergy analysis and economic assessment with the DLR in-house software tool TEPET (Techno-Economic Process Evaluation Tool). Based on the results from EEA, cost flow diagrams were created to visualize the cost formation process and options are discussed how the fuel costs can be reduced by redesigning the process.
Keywords:
biofuel, Fischer-Tropsch, exergoeconomic analysis, Power & Biomass-to-Liquid (PBtL), techno-economic assessment (TEA)
Topic:
Biomass Conversion Technologies for Fuels, Chemicals and Materials
Subtopic:
Pyrolysis
Event:
26th European Biomass Conference and Exhibition
Session:
3DO.6.3
Pages:
1019 - 1029
ISBN:
978-88-89407-18-9
Paper DOI:
10.5071/26thEUBCE2018-3DO.6.3
Price:
FREE
