Influence of strain-specific parameters on hydrothermal liquefaction of microalgae

Diego López Barreiro; Carlos Zamalloa; Nico Boon; Wim Vyverman; Frederik Ronsse; Wim Brilman; Wolter Prins

doi:10.1016/j.biortech.2013.07.123

Influence of strain-specific parameters on hydrothermal liquefaction of microalgae

Diego López Barreiro, Carlos Zamalloa, Nico Boon, Wim Vyverman, Frederik Ronsse, Wim Brilman, Wolter Prins

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Abstract

Algae are an interesting feedstock for producing biofuel via hydrothermal liquefaction (HTL), due to their high water content. In this study, algae slurries (5–7 wt% daf) from different species were liquefied at 250 and 375 °C in batch autoclaves during 5 min. The aim was to analyze the influence of strain-specific parameters (cell structure, biochemical composition and growth environment) on the HTL process. Results show big variations in the biocrude oil yield within species at 250 °C (from 17.6 to 44.8 wt%). At 375 °C, these differences become less significant (from 45.6 to 58.1 wt%). An appropriate characterization of feedstock appeared to be critical to interpret the results. If a high conversion of microalgae-to-biocrude is pursued, near critical conditions are required, with Scenedesmus almeriensis (freshwater) and Nannochloropsis gaditana (marine) leading to the biocrude oils with lower nitrogen content from each growth environment

Original language	English
Pages (from-to)	463-471
Journal	Bioresource technology
Volume	146
DOIs	https://doi.org/10.1016/j.biortech.2013.07.123
Publication status	Published - 2014

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@article{e88baa188f76437194f26163409050af,

title = "Influence of strain-specific parameters on hydrothermal liquefaction of microalgae",

abstract = "Algae are an interesting feedstock for producing biofuel via hydrothermal liquefaction (HTL), due to their high water content. In this study, algae slurries (5–7 wt% daf) from different species were liquefied at 250 and 375 °C in batch autoclaves during 5 min. The aim was to analyze the influence of strain-specific parameters (cell structure, biochemical composition and growth environment) on the HTL process. Results show big variations in the biocrude oil yield within species at 250 °C (from 17.6 to 44.8 wt%). At 375 °C, these differences become less significant (from 45.6 to 58.1 wt%). An appropriate characterization of feedstock appeared to be critical to interpret the results. If a high conversion of microalgae-to-biocrude is pursued, near critical conditions are required, with Scenedesmus almeriensis (freshwater) and Nannochloropsis gaditana (marine) leading to the biocrude oils with lower nitrogen content from each growth environment",

author = "{L{\'o}pez Barreiro}, Diego and Carlos Zamalloa and Nico Boon and Wim Vyverman and Frederik Ronsse and Wim Brilman and Wolter Prins",

year = "2014",

doi = "10.1016/j.biortech.2013.07.123",

language = "English",

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pages = "463--471",

journal = "Bioresource technology",

issn = "0960-8524",

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TY - JOUR

T1 - Influence of strain-specific parameters on hydrothermal liquefaction of microalgae

AU - López Barreiro, Diego

AU - Zamalloa, Carlos

AU - Boon, Nico

AU - Vyverman, Wim

AU - Ronsse, Frederik

AU - Brilman, Wim

AU - Prins, Wolter

PY - 2014

Y1 - 2014

N2 - Algae are an interesting feedstock for producing biofuel via hydrothermal liquefaction (HTL), due to their high water content. In this study, algae slurries (5–7 wt% daf) from different species were liquefied at 250 and 375 °C in batch autoclaves during 5 min. The aim was to analyze the influence of strain-specific parameters (cell structure, biochemical composition and growth environment) on the HTL process. Results show big variations in the biocrude oil yield within species at 250 °C (from 17.6 to 44.8 wt%). At 375 °C, these differences become less significant (from 45.6 to 58.1 wt%). An appropriate characterization of feedstock appeared to be critical to interpret the results. If a high conversion of microalgae-to-biocrude is pursued, near critical conditions are required, with Scenedesmus almeriensis (freshwater) and Nannochloropsis gaditana (marine) leading to the biocrude oils with lower nitrogen content from each growth environment

AB - Algae are an interesting feedstock for producing biofuel via hydrothermal liquefaction (HTL), due to their high water content. In this study, algae slurries (5–7 wt% daf) from different species were liquefied at 250 and 375 °C in batch autoclaves during 5 min. The aim was to analyze the influence of strain-specific parameters (cell structure, biochemical composition and growth environment) on the HTL process. Results show big variations in the biocrude oil yield within species at 250 °C (from 17.6 to 44.8 wt%). At 375 °C, these differences become less significant (from 45.6 to 58.1 wt%). An appropriate characterization of feedstock appeared to be critical to interpret the results. If a high conversion of microalgae-to-biocrude is pursued, near critical conditions are required, with Scenedesmus almeriensis (freshwater) and Nannochloropsis gaditana (marine) leading to the biocrude oils with lower nitrogen content from each growth environment

U2 - 10.1016/j.biortech.2013.07.123

DO - 10.1016/j.biortech.2013.07.123

M3 - Article

SN - 0960-8524

VL - 146

SP - 463

EP - 471

JO - Bioresource technology

JF - Bioresource technology

ER -

Influence of strain-specific parameters on hydrothermal liquefaction of microalgae

Abstract

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