Liquefaction of Lignocellulose in Fractionated Light Bio-Oil: Proof of Concept and Techno-Economic Assessment

Shushil Kumar, Jean-Paul Lange (Corresponding Author), Guus van Rossum, Sascha R.A. Kersten

Research output: Contribution to journalArticleAcademicpeer-review

15 Citations (Scopus)

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
Original languageEnglish
Pages (from-to)2271-2280
Number of pages10
JournalACS sustainable chemistry & engineering
Volume3
Issue number9
DOIs
Publication statusPublished - 2015

Fingerprint

Liquefaction
liquefaction
Oils
Economics
oil
economics
Fractionation
Effluents
Wood
fractionation
effluent
liquid
Biofuels
lignocellulose
Petroleum
Liquids
Solvent extraction
distillation
biofuel
Distillation

Keywords

  • Liquefaction
  • Lignocellulose
  • Extraction
  • Fractionation
  • Biocrude
  • Bio-oil
  • Techno-economic evaluation
  • Biomass

Cite this

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title = "Liquefaction of Lignocellulose in Fractionated Light Bio-Oil: Proof of Concept and Techno-Economic Assessment",
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",
keywords = "Liquefaction, Lignocellulose, Extraction, Fractionation, Biocrude, Bio-oil, Techno-economic evaluation, Biomass",
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Liquefaction of Lignocellulose in Fractionated Light Bio-Oil: Proof of Concept and Techno-Economic Assessment. / Kumar, Shushil; Lange, Jean-Paul (Corresponding Author); van Rossum, Guus; Kersten, Sascha R.A.

In: ACS sustainable chemistry & engineering, Vol. 3, No. 9, 2015, p. 2271-2280.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Liquefaction of Lignocellulose in Fractionated Light Bio-Oil: Proof of Concept and Techno-Economic Assessment

AU - Kumar, Shushil

AU - Lange, Jean-Paul

AU - van Rossum, Guus

AU - Kersten, Sascha R.A.

PY - 2015

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N2 - 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

AB - 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

KW - Liquefaction

KW - Lignocellulose

KW - Extraction

KW - Fractionation

KW - Biocrude

KW - Bio-oil

KW - Techno-economic evaluation

KW - Biomass

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