Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/9575
Title: Liquefaction of waste hazelnut shell by using sub- and supercritical solvents as a reaction medium
Authors: Demirkaya, Emre
Dal, Orkan
Yüksel, Aslı
Keywords: Hazelnut shell
Biomass
Bio-oil
Supercritical fluid
Ethanol
Acetone
Issue Date: 2019
Publisher: Elsevier
Abstract: Direct thermochemical biomass degradation to obtain bio-oil by using organic solvents is not a new process type, and it has some advantages over hydrothermal liquefaction technique. However, up to our best knowledge, in this study, hazelnut shell decomposition by using ethanol, acetone and their mixtures at sub/supercritical conditions was studied for the first time in literature. Experiments were carried out between 220-300 degrees C, at three different reaction times (30, 60 and 90 min) for five different solvent ratios. Highest solid conversion achieved at 300 degrees C by using pure ethanol was 64.2%, whereas highest bio-oil yield was found as 44.2% at 300 degrees C with 50/50 (EtOH/Ac: v/v). Ethanol and acetone showed different characteristics during the reactions and their effects on the conversion and bio-oil yield were discussed. Statistical analysis showed that time, temperature, ratio and synergy between temperature-time were affecting parameters for the conversion and bio-oil yield. (C) 2019 Elsevier B.V. All rights reserved.
URI: https://doi.org/10.1016/j.supflu.2019.03.019
https://hdl.handle.net/11147/9575
ISSN: 0896-8446
1872-8162
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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