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Exergy Analysis of a Process Converting Power and Biomass to a Liquid Fuel

Ostadi, Mohammad; Austbø, Bjørn; Hillestad, Magne
Journal article, Peer reviewed
Published version
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URI
http://hdl.handle.net/11250/2639370
Date
2019
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  • Institutt for kjemisk prosessteknologi [1427]
  • Publikasjoner fra CRIStin - NTNU [26717]
Original version
Chemical Engineering Transactions. 2019, 76 205-210.   10.3303/CET1976035
Abstract
A power and biomass to liquid process (PBtL) via Fischer-Tropsch synthesis is exergetically analysed. Synthesis gas is generated through an entrained flow gasifier and extra hydrogen is produced through high temperature steam electrolysis in a solid oxide electrolysis cell (SOEC). The gasification section of the process has the highest exergy destruction rate, followed by the Fischer-Tropsch and SOEC sections. To improve the process, the focus should be on the design and operation of these sections. The plant has an overall exergetic efficiency of 69 %, evaluated as the ratio of the exergy of the products to the exergy of the biomass and electricity supplied to the process.
Publisher
AIDIC Servizi S.r.l.
Journal
Chemical Engineering Transactions

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