Production of fuel range oxygenates by supercritical hydrothermal liquefaction of lignocellulosic model systems

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Abstract

Lignocellulosic model compounds and aspen wood are processed at supercritical hydrothermal conditions to study and understand feedstock impact on biocrude formation and characteristics. Glucose and xylose demonstrate similar yield of biocrude and biochar, similar biocrude characteristics, and it is hypothesized that reaction mechanisms for the two model compounds are indistinguishable. Glucose and xylose are main sources of substituted cyclopentenones and substantial contributors to oxygenated aromatics mainly in the range of C6–C9 number of carbon atoms, and potential, sustainable biogasoline candidates. Lignin yields predominantly aromatic biocrudes having similar C6–C9 number of carbon atoms. Model mixtures show good predictability in the distribution of substituted cyclopentenones and oxygenated aromatics, but aspen wood-derived biocrude is more aromatic than predicted by model mixtures. The work extends previous work on the understanding of the chemical mechanisms of lignocellulose liquefaction and the biocrude formation. Potential applications for the biocrudes are identified, where significant sustainability issues for the transport sector can be addressed.
Original languageEnglish
JournalBiomass & Bioenergy
Volume83
Pages (from-to)206-215
Number of pages10
ISSN0961-9534
DOIs
Publication statusPublished - Dec 2015

Fingerprint

fuel production
Liquefaction
liquefaction
aromatic compounds
Xylose
xylose
Glucose
Wood
glucose
biochar
Atoms
lignocellulose
Carbon
reaction mechanisms
carbon
feedstocks
Lignin
Feedstocks
lignin
Sustainable development

Keywords

  • Biofuel
  • Biocrude
  • Wood liquefaction
  • Model compounds
  • Hydrothermal liquefaction
  • Reaction mechanism

Cite this

@article{574c89241adc4b40b129d571c5945131,
title = "Production of fuel range oxygenates by supercritical hydrothermal liquefaction of lignocellulosic model systems",
abstract = "Lignocellulosic model compounds and aspen wood are processed at supercritical hydrothermal conditions to study and understand feedstock impact on biocrude formation and characteristics. Glucose and xylose demonstrate similar yield of biocrude and biochar, similar biocrude characteristics, and it is hypothesized that reaction mechanisms for the two model compounds are indistinguishable. Glucose and xylose are main sources of substituted cyclopentenones and substantial contributors to oxygenated aromatics mainly in the range of C6–C9 number of carbon atoms, and potential, sustainable biogasoline candidates. Lignin yields predominantly aromatic biocrudes having similar C6–C9 number of carbon atoms. Model mixtures show good predictability in the distribution of substituted cyclopentenones and oxygenated aromatics, but aspen wood-derived biocrude is more aromatic than predicted by model mixtures. The work extends previous work on the understanding of the chemical mechanisms of lignocellulose liquefaction and the biocrude formation. Potential applications for the biocrudes are identified, where significant sustainability issues for the transport sector can be addressed.",
keywords = "Biofuel, Biocrude, Wood liquefaction, Model compounds, Hydrothermal liquefaction, Reaction mechanism",
author = "Pedersen, {Thomas Helmer} and Rosendahl, {Lasse Aistrup}",
year = "2015",
month = "12",
doi = "10.1016/j.biombioe.2015.09.014",
language = "English",
volume = "83",
pages = "206--215",
journal = "Biomass & Bioenergy",
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publisher = "Pergamon Press",

}

Production of fuel range oxygenates by supercritical hydrothermal liquefaction of lignocellulosic model systems. / Pedersen, Thomas Helmer; Rosendahl, Lasse Aistrup.

In: Biomass & Bioenergy, Vol. 83, 12.2015, p. 206-215.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Production of fuel range oxygenates by supercritical hydrothermal liquefaction of lignocellulosic model systems

AU - Pedersen, Thomas Helmer

AU - Rosendahl, Lasse Aistrup

PY - 2015/12

Y1 - 2015/12

N2 - Lignocellulosic model compounds and aspen wood are processed at supercritical hydrothermal conditions to study and understand feedstock impact on biocrude formation and characteristics. Glucose and xylose demonstrate similar yield of biocrude and biochar, similar biocrude characteristics, and it is hypothesized that reaction mechanisms for the two model compounds are indistinguishable. Glucose and xylose are main sources of substituted cyclopentenones and substantial contributors to oxygenated aromatics mainly in the range of C6–C9 number of carbon atoms, and potential, sustainable biogasoline candidates. Lignin yields predominantly aromatic biocrudes having similar C6–C9 number of carbon atoms. Model mixtures show good predictability in the distribution of substituted cyclopentenones and oxygenated aromatics, but aspen wood-derived biocrude is more aromatic than predicted by model mixtures. The work extends previous work on the understanding of the chemical mechanisms of lignocellulose liquefaction and the biocrude formation. Potential applications for the biocrudes are identified, where significant sustainability issues for the transport sector can be addressed.

AB - Lignocellulosic model compounds and aspen wood are processed at supercritical hydrothermal conditions to study and understand feedstock impact on biocrude formation and characteristics. Glucose and xylose demonstrate similar yield of biocrude and biochar, similar biocrude characteristics, and it is hypothesized that reaction mechanisms for the two model compounds are indistinguishable. Glucose and xylose are main sources of substituted cyclopentenones and substantial contributors to oxygenated aromatics mainly in the range of C6–C9 number of carbon atoms, and potential, sustainable biogasoline candidates. Lignin yields predominantly aromatic biocrudes having similar C6–C9 number of carbon atoms. Model mixtures show good predictability in the distribution of substituted cyclopentenones and oxygenated aromatics, but aspen wood-derived biocrude is more aromatic than predicted by model mixtures. The work extends previous work on the understanding of the chemical mechanisms of lignocellulose liquefaction and the biocrude formation. Potential applications for the biocrudes are identified, where significant sustainability issues for the transport sector can be addressed.

KW - Biofuel

KW - Biocrude

KW - Wood liquefaction

KW - Model compounds

KW - Hydrothermal liquefaction

KW - Reaction mechanism

U2 - 10.1016/j.biombioe.2015.09.014

DO - 10.1016/j.biombioe.2015.09.014

M3 - Journal article

VL - 83

SP - 206

EP - 215

JO - Biomass & Bioenergy

JF - Biomass & Bioenergy

SN - 0961-9534

ER -