Projects per year
Abstract
Supercritical carbon dioxide extraction was utilized for the fractionation of a pinewood derived hydrothermal liquefaction bio-crude. The experiments were performed at temperature 120 ºC and at pressure levels that correspond to CO2 density of 500, 615 and 730 kg/m3. Extraction yields of 34 to 49 % were achieved, which increased with increasing solvent density. Density was reduced for all extracts (2-10 %) while the H/C ratio increased when compared to the bio-crude. Low boiling point components such as ketones, 1-ring aromatic hydrocarbons and low molecular weight fatty acids were extracted preferentially (K-values up to 11). 1-ring phenols and benzenediols were enriched in the extracts as well (K-values 1-3). Heavy hydrocarbons and long chain fatty acids were extracted at the later stages of extraction when the lighter components were depleted.
Original language | English |
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Book series | Chemical engineering transactions |
Volume | 74 |
Pages (from-to) | 799-804 |
Number of pages | 6 |
ISSN | 1974-9791 |
DOIs | |
Publication status | Published - 2019 |
Fingerprint
Dive into the research topics of 'High-temperature extraction of lignocellulosic bio-crude by supercritical carbon dioxide'. Together they form a unique fingerprint.Projects
- 1 Finished
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Fractionation of bio-crudes using supercritical carbon dioxide
Maschietti, M., Montesantos, N., Nielsen, R. P. & Montagnac, C.
01/08/2017 → 31/07/2020
Project: Research
Activities
- 1 Conference organisation or participation
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14th International Conference on Chemical and Process Engineering
Marco Maschietti (Participant)
26 May 2019 → 29 May 2019Activity: Attending an event › Conference organisation or participation
Research output
- 5 Citations
- 1 PhD thesis
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Valorization of lignocellulosic biocrudes by supercritical carbon dioxide extraction
Montesantos, N., 2020, Aalborg Universitetsforlag. 103 p.Research output: PhD thesis
Open AccessFile