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EUBCE 2024 - Loukia CHRYSIKOU - Hydrothermal Liquefaction of Oleaginous Yeasts Targeting High Quality Bio-Crude Oil Production

Hydrothermal Liquefaction of Oleaginous Yeasts Targeting High Quality Bio-Crude Oil Production

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Hydrothermal Liquefaction of Oleaginous Yeasts Targeting High Quality Bio-Crude Oil Production

Short Introductive summary

The study examines the HTL process comparatively on two different oleaginous yeasts (Cryptococcus Curvatus and Lipomyces Starkeyi) in terms of bio-crude oil production yield and properties. Both of the feedstocks contain significant amount of lipids (50 wt%) and have low ash content. Initially the process is optimized for each type of biomass in terms of yield by studying the process main parameters such as temperature, residence time and feed-to-solvent ratio. HTL of Lipomyces Starkeyi led to a significant production (60 wt%) bio-crude oil yield while the solid residue yield was low (5 wt%). Both residence time and temperature affected the oil yield synergistically. This means that in each temperature the residence time affected variously the products yield and vice versa. The maximum bio-crude oil obtained was 67 wt% at 300°C and 30 min residence time and resulted from the liquefaction of lipids and a part of proteins and extractives. By the end of the study it is expected to optimize the process for each type of oleaginous yeast, determine the content of the products and understand the network of reactions that occur during the process.

Presenter

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Loukia CHRYSIKOU

CERTH Centre for Research and Technology Hellas, Chemical Process and Energy Resources Institute, GREECE

Presenter's biography

Dr. Chrysikou obtained a Chemistry diploma and a Ph.D from Aristotle University of Thessaloniki. Since 2010 she is a research assistant in CERTH’s HydroProcessing Group involved in R&D on novel low-carbon fuel technologies, focusing on LCA of processes producing renewable fuels.

Biographies and Short introductive summaries are supplied directly by presenters and are published here unedited


Co-authors:

S. Bezergianni, Centre for Research & Technology Hellas, Thermi - Thessaloniki, GREECE
D Liakos, Centre for Research & Technology Hellas, Thermi - Thessaloniki, GREECE
N. Tourlakidis, Centre for Research & Technology Hellas, Thermi - Thessaloniki, GREECE
K Pigkas, Centre for Research & Technology Hellas, Thermi - Thessaloniki, GREECE
L Chrysikou, Centre for Research & Technology Hellas, Thermi - Thessaloniki, GREECE
A Koutinas, Agricultural University of Athens, Athens, GREECE

Session reference: 5DV.2.11