Effect of biomass pretreatment on the product distribution and composition resulting from the hydrothermal liquefaction of short rotation coppice willow

Ionela Grigoras, Rodica-Elisabeta Stroe, Iulia-Maria Sintamarean, Lasse Aistrup Rosendahl

Research output: Contribution to journalJournal articleResearchpeer-review

13 Citations (Scopus)

Abstract

A major challenge for the implementation of hydrothermal liquefaction (HTL) as a continuous process is the formulation of lignocellulosic feedstock, which is prone to phase separation into water and biomass parts when pressurized. One approach to remedy such phase separation is to reduce the dry matter content; however, as this approach is detrimental to process cost efficiency, designing an appropriate pretreatment step to ensure pumpability at high dry matter content is preferable. This paper evaluated the effect of various pretreatment methods on product distribution and composition resulting from the HTL of willow and proposes short rotation coppice as an alternative biomass feedstock for biofuels production. Alkaline–thermal pretreatment, besides making high dry matter pumpable feedstock slurries, also led to an increase in the production of the bio-crude product with an oxygen content lower than 8 wt% and a higher concentration of aromatics and phenolic compounds.
Original languageEnglish
JournalBioresource Technology
Volume231
Pages (from-to)116-123
Number of pages8
ISSN0960-8524
DOIs
Publication statusPublished - May 2017

Fingerprint

Salix
coppice
Liquefaction
liquefaction
Feedstocks
dry matter
Biomass
Phase separation
biomass
Chemical analysis
Biofuels
Slurries
phenolic compound
biofuel
Oxygen
Water
cost
distribution
product
effect

Keywords

  • Alkaline pretreatment
  • Hydrothermal liquefaction
  • Short rotation coppice
  • Willow
  • Biofuels

Cite this

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title = "Effect of biomass pretreatment on the product distribution and composition resulting from the hydrothermal liquefaction of short rotation coppice willow",
abstract = "A major challenge for the implementation of hydrothermal liquefaction (HTL) as a continuous process is the formulation of lignocellulosic feedstock, which is prone to phase separation into water and biomass parts when pressurized. One approach to remedy such phase separation is to reduce the dry matter content; however, as this approach is detrimental to process cost efficiency, designing an appropriate pretreatment step to ensure pumpability at high dry matter content is preferable. This paper evaluated the effect of various pretreatment methods on product distribution and composition resulting from the HTL of willow and proposes short rotation coppice as an alternative biomass feedstock for biofuels production. Alkaline–thermal pretreatment, besides making high dry matter pumpable feedstock slurries, also led to an increase in the production of the bio-crude product with an oxygen content lower than 8 wt{\%} and a higher concentration of aromatics and phenolic compounds.",
keywords = "Alkaline pretreatment, Hydrothermal liquefaction, Short rotation coppice, Willow, Biofuels",
author = "Ionela Grigoras and Rodica-Elisabeta Stroe and Iulia-Maria Sintamarean and Rosendahl, {Lasse Aistrup}",
year = "2017",
month = "5",
doi = "10.1016/j.biortech.2017.01.056",
language = "English",
volume = "231",
pages = "116--123",
journal = "Bioresource Technology",
issn = "0960-8524",
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Effect of biomass pretreatment on the product distribution and composition resulting from the hydrothermal liquefaction of short rotation coppice willow. / Grigoras, Ionela; Stroe, Rodica-Elisabeta; Sintamarean, Iulia-Maria; Rosendahl, Lasse Aistrup.

In: Bioresource Technology, Vol. 231, 05.2017, p. 116-123.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Effect of biomass pretreatment on the product distribution and composition resulting from the hydrothermal liquefaction of short rotation coppice willow

AU - Grigoras, Ionela

AU - Stroe, Rodica-Elisabeta

AU - Sintamarean, Iulia-Maria

AU - Rosendahl, Lasse Aistrup

PY - 2017/5

Y1 - 2017/5

N2 - A major challenge for the implementation of hydrothermal liquefaction (HTL) as a continuous process is the formulation of lignocellulosic feedstock, which is prone to phase separation into water and biomass parts when pressurized. One approach to remedy such phase separation is to reduce the dry matter content; however, as this approach is detrimental to process cost efficiency, designing an appropriate pretreatment step to ensure pumpability at high dry matter content is preferable. This paper evaluated the effect of various pretreatment methods on product distribution and composition resulting from the HTL of willow and proposes short rotation coppice as an alternative biomass feedstock for biofuels production. Alkaline–thermal pretreatment, besides making high dry matter pumpable feedstock slurries, also led to an increase in the production of the bio-crude product with an oxygen content lower than 8 wt% and a higher concentration of aromatics and phenolic compounds.

AB - A major challenge for the implementation of hydrothermal liquefaction (HTL) as a continuous process is the formulation of lignocellulosic feedstock, which is prone to phase separation into water and biomass parts when pressurized. One approach to remedy such phase separation is to reduce the dry matter content; however, as this approach is detrimental to process cost efficiency, designing an appropriate pretreatment step to ensure pumpability at high dry matter content is preferable. This paper evaluated the effect of various pretreatment methods on product distribution and composition resulting from the HTL of willow and proposes short rotation coppice as an alternative biomass feedstock for biofuels production. Alkaline–thermal pretreatment, besides making high dry matter pumpable feedstock slurries, also led to an increase in the production of the bio-crude product with an oxygen content lower than 8 wt% and a higher concentration of aromatics and phenolic compounds.

KW - Alkaline pretreatment

KW - Hydrothermal liquefaction

KW - Short rotation coppice

KW - Willow

KW - Biofuels

U2 - 10.1016/j.biortech.2017.01.056

DO - 10.1016/j.biortech.2017.01.056

M3 - Journal article

VL - 231

SP - 116

EP - 123

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

ER -