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Comparative techno-economic and exergetic analysis of gasification technologies

Silva Ortiz, Pablo and Maier, Simon and Dietrich, Ralph-Uwe and Maciel Filho, Rubens and Posada, John (2020) Comparative techno-economic and exergetic analysis of gasification technologies. 15th SDEWES - Conference on sustainable development of energy, water and environment systems, 01.-05. September 2020, Köln, Deutschland. ISSN 1847-7178.

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Nowadays, the use of lignocellulosic materials to produce biofuels/electricity is a field of ever growing importance. Two options of the interesting residual biomass are sugarcane bagasse and straw. A technological pathway for the conversion of biomass is the thermochemical route. Hence, biomass gasification represents a promising technology within this route for power generation and large scale production of a variety of biofuels (e.g. Methanol, Dimethylether, Fischer-Tropsch fuels, Hydrogen, and Synthetic Natural Gas). In this work, the technoeconomic and exergy analysis of the thermochemical routes integrated into a Combined Cycle are presented. The lignocellulosic gasification process uses fluidized-bed (circulating and dual bed) systems, with subsequent conversion of the synthesis gas (syngas). The process simulations were carried out using Aspen Plus® software, including biomass drying and gasification, syngas cleaning, conditioning, separation of synthesis products, and heat recovery. From the techno-economic assessment, the DFB-LCM model has the lowest total cost of investment, which represents a 40% less concerning the CFB-SCB system. In addition, the DFB-LCM model shows the lowest exergy destruction rate; as a consequence, the higher the exergy efficiency of the overall systems. Hence, the DFB-LCM model could represent a competitive application for the agro-industrial sector to explore the contribution/potential of lignocellulosic materials on carbon-neutral systems by converting syngas into electricity.

Item URL in elib:https://elib.dlr.de/136772/
Document Type:Conference or Workshop Item (Speech)
Title:Comparative techno-economic and exergetic analysis of gasification technologies
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Silva Ortiz, Pablopabloaso (at) unicamp.brUNSPECIFIED
Maier, SimonSimon.Maier (at) dlr.dehttps://orcid.org/0000-0001-8660-0063
Dietrich, Ralph-UweRalph-Uwe.Dietrich (at) dlr.deUNSPECIFIED
Maciel Filho, Rubensrmaciel (at) unicamp.brUNSPECIFIED
Posada, Johnj.a.posadaduque (at) tudelft.nlUNSPECIFIED
Date:August 2020
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:0209.1-0209.15
Series Name:Conference on Sustainable Development of Energy, Water and Environment Systems
Keywords:Lignocellulosic gasification, Techno-economic analysis, Exergy analysis, Process integration.
Event Title:15th SDEWES - Conference on sustainable development of energy, water and environment systems
Event Location:Köln, Deutschland
Event Type:international Conference
Event Dates:01.-05. September 2020
Organizer:International Centre for Sustainable Development of Energy, Water and Environment Systems
HGF - Research field:Energy
HGF - Program:Storage and Cross-linked Infrastructures
HGF - Program Themes:Synthetic Hydrocarbons
DLR - Research area:Energy
DLR - Program:E SP - Energy Storage
DLR - Research theme (Project):E - Thermochemical Processes (Synth. HC.) (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Energy System Integration
Deposited By: Maier, Simon
Deposited On:23 Oct 2020 11:29
Last Modified:23 Oct 2020 11:29

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