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 - 2013/10
Y1 - 2013/10
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.
KW - Biofuel production
KW - Hydrothermal liquefaction
KW - Microalgae
UR - http://www.scopus.com/inward/record.url?scp=84883325832&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84883325832&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2013.07.123
DO - 10.1016/j.biortech.2013.07.123
M3 - Article
C2 - 23958678
AN - SCOPUS:84883325832
SN - 0960-8524
VL - 146
SP - 463
EP - 471
JO - Bioresource Technology
JF - Bioresource Technology
ER -