Hydrothermal Liquefaction of Marine Biomass: An Integrated Process

Yıl 2018, Cilt: 6 Sayı: 1, 36 - 39, 31.01.2018

İrem Deniz

https://doi.org/10.21541/apjes.320484

Öz

Ethanol
production from lignocellulosic materials has been extensively studied in order
to substitute fossil fuels. The aim of the study was to investigate the
potential of Pocidonia oceanica
residues as a potential source of fermentable sugars for bioethanol production
in an integrated process. By consecutive supercritical CO₂ and
supercritical water (SCW) hydrolysis with a solid:liquid ratio of 0.08 (w/v) at
400 °C, cellulose and lignin were retained in solid phase whereas a reducing
sugar value of 14.1 g/L was quantified in the liquid phase. Supercritical CO₂
extraction acted as a pretreatment method in order to loosen the lignin
structure and SCW hydrolysis was responsible for both releasing some of the
hemicellulose in the matrix. The results are very promising in terms of
deployment of the utilization processes to industrial scale applications,
thereby proposing an alternative solution to the landfill of P. oceanica residues. 

Anahtar Kelimeler

Marine Biomass, Hydrothermal Liquefaction, Supercritical CO2, Supercritical Water Hydrolysis, reduced sugar

Marin biyokütlenin hidrotermal sıvılaştırılması: Entegre bir proses

Öz

Ethanol
production from lignocellulosic materials has been extensively studied in order
to substitute fossil fuels. The aim of the study was to investigate the
potential of Pocidonia oceanica
residues as a potential source of fermentable sugars for bioethanol production
in an integrated process. By consecutive supercritical CO₂ and
supercritical water (SCW) hydrolysis with a solid:liquid ratio of 0.08 (w/v) at
400 °C, cellulose and lignin were retained in solid phase whereas a reducing
sugar value of 14.1 g/L was quantified in the liquid phase. Supercritical CO₂
extraction acted as a pretreatment method in order to loosen the lignin
structure and SCW hydrolysis was responsible for both releasing some of the
hemicellulose in the matrix. The results are very promising in terms of
deployment of the utilization processes to industrial scale applications,
thereby proposing an alternative solution to the landfill of P. oceanica residues. 

Anahtar Kelimeler

Marine Biomass, Hydrothermal Liquefaction, Supercritical CO2, Supercritical Water Hydrolysis, Reducing Sugar

Kaynakça

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