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Technoeconomic assessment of hybrid organosolv-steam explosion pretreatment of woody biomass
RISE - Research Institutes of Sweden, Bioeconomy, Biorefinery and Energy.
Luleå University of Technology, Sweden.
Luleå University of Technology, Sweden.
Luleå University of Technology, Sweden.
2019 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 12, no 21, article id en12214206Article in journal (Refereed) Published
Abstract [en]

This study investigates technoeconomic performance of standalone biorefinery concepts that utilize hybrid organic solvent and steam explosion pretreatment technique. The assessments were made based on a mathematical process model developed in UniSim Design software using inhouse experimental data. The work was motivated by successful experimental applications of the hybrid pretreatment technique on lignocellulosic feedstocks that demonstrated high fractionation efficiency into a cellulose-rich, a hemicellulose-rich and lignin streams. For the biorefinery concepts studied here, the targeted final products were ethanol, organosolv lignin and hemicellulose syrup. Minimum ethanol selling price (MESP) and Internal rate of return (IRR) were evaluated as economic indicators of the investigated biorefinery concepts. Depending on the configuration, and allocating all costs to ethanol, MESP in the range 0.53-0.95 €/L were required for the biorefinery concepts to break even. Under the assumed ethanol reference price of 0.55 €/L, the corresponding IRR were found to be in the range -1.75-10.7%. Hemicellulose degradation and high steam demand identified as major sources of inefficiencies for the process and economic performance, respectively. Sensitivity of MESP and IRR towards the most influential technical, economic and market parameters performed. © 2019 by the authors.

Place, publisher, year, edition, pages
MDPI AG , 2019. Vol. 12, no 21, article id en12214206
Keywords [en]
Biofuels, Biorefinery, Ethanol, Lignin, Organosovl, Pretreatment, Steamexplosion, Technoeconomic, Cellulose, Earnings, Refining, Biorefineries, Pre-Treatment, Steam explosion, Techno-economics, Bioconversion
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-42098DOI: 10.3390/en12214206Scopus ID: 2-s2.0-85075561566OAI: oai:DiVA.org:ri-42098DiVA, id: diva2:1379166
Note

Funding text 1: Acknowledgments: Authors would like to thank Bio4Energy, a strategic research environment appointed by the Swedish government, for supporting this work.

Available from: 2019-12-16 Created: 2019-12-16 Last updated: 2019-12-16Bibliographically approved

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