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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/20333
Title: Liquefaction of Lignocellulose in Fractionated Light Bio-Oil: Proof of Concept and Techno-Economic Assessment
Authors: Kumar, Shushil
Lange J.-P.
Rossum G.V.
Kersten S.R.A.
Published in: ACS Sustainable Chemistry and Engineering
Abstract: The direct thermal liquefaction of lignocellulose can provide a biocrude that could be used as a precursor for biofuels. However, earlier attempts to use the whole reactor effluent as a liquefaction medium, by recycling it to the liquefaction reactor, were hampered by the buildup of heavy products. This paper reports on the integration of the liquefaction reaction and the fractionation of the reactor effluent to recover and recycle the light oil fraction of it to be used as a liquefaction solvent. The fractionation is based on solvent extraction and temperature-swing regeneration. Here, we demonstrate steady-state liquefaction of pine wood with high and constant liquid yields (90 C %) and constant liquid qualities over several recycles. The liquefaction was done at a temperature of 320 C and at a pressure of 7-10 MPa. Process simulation confirms a significant savings in energy demand by incorporating the extraction in the process, compared to an alternative liquefaction/distillation scheme. A techno-economic assessment further estimates that a biocrude could be produced at an energy-equivalent crude oil price of 54 $/barrel at a wood cost of 85 $/dry ton. (Figure Presented). © 2015 American Chemical Society.
Citation: ACS Sustainable Chemistry and Engineering, 3(9): 2271-2280
URI: https://doi.org/10.1021/acssuschemeng.5b00547
http://repository.iitr.ac.in/handle/123456789/20333
Issue Date: 2015
Publisher: American Chemical Society
Keywords: Bio-oil
Biocrude
Biomass
Extraction
Fractionation
Lignocellulose
Liquefaction
Techno-economic evaluation
ISSN: 21680485
Author Scopus IDs: 55550211700
7402027792
16647548800
7004061067
Author Affiliations: Kumar, S., Sustainable Process Technology, Faculty of Science and Technology, University of Twente, Drienerlolaan 5, Enschede, 7522 NB, Netherlands
Lange, J.-P., Sustainable Process Technology, Faculty of Science and Technology, University of Twente, Drienerlolaan 5, Enschede, 7522 NB, Netherlands, Shell Technology Centre Amsterdam, Shell Global Solutions International B.V., Grasweg 31, Amsterdam, 1031 HW, Netherlands
Rossum, G.V., Sustainable Process Technology, Faculty of Science and Technology, University of Twente, Drienerlolaan 5, Enschede, 7522 NB, Netherlands, Shell Technology Centre Amsterdam, Shell Global Solutions International B.V., Grasweg 31, Amsterdam, 1031 HW, Netherlands
Kersten, S.R.A., Sustainable Process Technology, Faculty of Science and Technology, University of Twente, Drienerlolaan 5, Enschede, 7522 NB, Netherlands
Corresponding Author: Lange, J.-P.; Sustainable Process Technology, Faculty of Science and Technology, University of Twente, Drienerlolaan 5, Netherlands
Appears in Collections:Journal Publications [CH]

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