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Techno-economic analysis of hydrogen enhanced methanol to gasoline process from biomass-derived synthesis gas

Hennig, Malte 1; Haase, Martina 1
1 Institut für Technikfolgenabschätzung und Systemanalyse (ITAS), Karlsruher Institut für Technologie (KIT)

Abstract:
In this paper, the implications of the use of hydrogen on product yield and conversion efficiency as well as on economic performance of a hydrogen enhanced Biomass-to-Liquid (BtL) process are analyzed. A process concept for the synthesis of fuel (gasoline and LPG) from biomass-derived synthesis gas via Methanol-to-Gasoline (MtG) route with utilization of carbon dioxide from gasification by feeding additional hydrogen is developed and modeled in Aspen Plus. The modeled process produces 0.36 kg fuel per kg dry straw. Additionally, 99 MW electrical power are recovered from purge and off gases from fuel synthesis in CCGT process, covering the electricity consumption of fuel synthesis and synthesis gas generation. The hydrogen enhanced BtL procces reaches a combined chemical and electrical efficiency of 48.2% and overall carbon efficiency of 69.5%. The total product costs (TPC) sum up to 3.24 €/kg fuel. Raw materials (hydrogen and straw) make up the largest fraction of TPC with a total share of 75%. The hydrogen enhanced BtL process shows increased chemical, energy and carbon efficiencies and thus higher product yields. However, economic analysis shows that the process is unprofitable under current conditions due to high costs for hydrogen provision.


Verlagsausgabe §
DOI: 10.5445/IR/1000130257
Veröffentlicht am 05.03.2021
Originalveröffentlichung
DOI: 10.1016/j.fuproc.2021.106776
Scopus
Zitationen: 4
Web of Science
Zitationen: 3
Dimensions
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Technikfolgenabschätzung und Systemanalyse (ITAS)
Institut für Technische Chemie (ITC)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 01.06.2021
Sprache Englisch
Identifikator ISSN: 0378-3820, 1873-7188
KITopen-ID: 1000130257
HGF-Programm 38.05.01 (POF IV, LK 01) Anthropogenic Carbon Cycle
Weitere HGF-Programme 37.11.02 (POF IV, LK 01) Societally-Feasible Transformation Pathways
Erschienen in Fuel processing technology
Verlag Elsevier
Band 216
Seiten Ar.-Nr. 106776
Vorab online veröffentlicht am 04.03.2021
Externe Relationen Siehe auch
Schlagwörter MtG; Biomass to liquid (BtL); 2nd generation biofuel; Synthetic fuel; Renewable energy; Techno-economic analysis
Nachgewiesen in Dimensions
Scopus
Web of Science
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