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dc.contributor.authorHillestad, Magne
dc.contributor.authorOstadi, Mohammad
dc.contributor.authordel Alamo Serrano, Gonzalo
dc.contributor.authorRytter, Erling
dc.contributor.authorAustbø, Bjørn
dc.contributor.authorPharoah, Jon
dc.contributor.authorBurheim, Odne Stokke
dc.date.accessioned2018-08-29T11:09:13Z
dc.date.available2018-08-29T11:09:13Z
dc.date.created2018-08-23T17:27:01Z
dc.date.issued2018
dc.identifier.citationFuel. 2018, 234 1431-1451.nb_NO
dc.identifier.issn0016-2361
dc.identifier.urihttp://hdl.handle.net/11250/2559843
dc.description.abstractA process where power and biomass are converted to Fischer-Tropsch liquid fuels (PBtL) is compared to a conventional Biomass-to-Liquid (BtL) process concept. Based on detailed process models, it is demonstrated that the carbon efficiency of a conventional Biomass to Liquid process can be increased from 38 to more than 90% by adding hydrogen from renewable energy sources. This means that the amount of fuel can be increased by a factor of 2.4 with the same amount of biomass. Electrical power is applied to split water/steam at high temperature over solid oxide electrolysis cells (SOEC). This technology is selected because part of the required energy can be replaced by available heat. The required electrical power for the extra production is estimated to be 11.6 kWh per liter syncrude . By operating the SOEC iso-thermally close to 850 °C the electric energy may be reduced to 9.5 kWh per liter, which is close to the energy density of jet fuel. A techno-economic analysis is performed where the total investments and operating costs are compared for the BtL and PBtL. With an electrical power price of 0.05 $/kWh and with SOEC investment cost of the 1000 $/kW(el), the levelized cost of producing advanced biofuel with the PBtL concept is 1.7 $/liter, which is approximately 30% lower than for the conventional BtL. Converting excess renewable electric power to advanced biofuel in a PBtL plant is a sensible way of storing energy as a fuel with a relatively high energy density.nb_NO
dc.language.isoengnb_NO
dc.publisherElseviernb_NO
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S0016236118313632
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleImproving carbon efficiency and profitability of the biomass to liquid process with hydrogen from renewable powernb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.pagenumber1431-1451nb_NO
dc.source.volume234nb_NO
dc.source.journalFuelnb_NO
dc.identifier.doi10.1016/j.fuel.2018.08.004
dc.identifier.cristin1604134
dc.relation.projectNorges forskningsråd: 267989nb_NO
dc.description.localcode© 2018 Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/).nb_NO
cristin.unitcode194,66,30,0
cristin.unitcode194,64,92,0
cristin.unitcode194,64,25,0
cristin.unitnameInstitutt for kjemisk prosessteknologi
cristin.unitnameInstitutt for maskinteknikk og produksjon
cristin.unitnameInstitutt for energi- og prosessteknikk
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal